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This Information Bulletin provides guidance on City of San Diego’s requirements for obtaining a Building Permit to construct Accessory Dwelling Units (ADU) and Junior Accessory Dwelling Units (JADU). General Regulations for Accessory Dwelling Units and/or Junior Accessory Dwelling Units can be found in San Diego Municipal Code Chapter 14, Article 1, Division 3.
Editor’s Note: Some of the regulations and guidelines outlined below – pertaining to certain setback and landscape requirements and provisions associated with sustainable development areas – are not effective within the Coastal Overlay Zone. The regulations and guidelines outlined below will become effective within the Coastal Overlay Zone when the California Coastal Commission certifies Ordinance Numbers O-21439 , O-21461, O-21618 and O-21758.
As part of O-21618 a pipeline provision was adopted, allowing projects that have submitted applications one (1) year from the effective date of the Ordinance (May 6, 2023) to be subject to the rules in effect before the effective date of the Ordinance. Project applications submitted within one year from the effective date of the regulations may choose to comply with the existing regulations or the regulations that were in effect before the effective date of the regulations.
Accessory Dwelling Unit (ADU)
What is an ADU?
An Accessory Dwelling Unit (ADU) is an attached or detached residential dwelling unit that is:
- 1,200 square feet in size or less.
- Provides complete independent living facilities for one or more persons, including permanent provisions for living, sleeping, eating, cooking, and sanitation. (and)
- Located on a lot with a proposed or existing single-dwelling unit or multiple-dwelling units.
ADUs Allowable Locations
ADUs are permitted in Zones where Use Regulation Tables identify ADUs as allowable Limited Uses. Generally, ADUs are allowed in Zones that permit Residential Uses.
- Base Zone Designations: Use Regulation Tables in SDMC Chapter 13, Article 1, Divisions 1 through 7
- Planned District Ordinance Zone Designations: Use Regulation Tables in SDMC Chapter 15, Articles 2 through 20
- Find your Zone Designation by visiting the Zoning and Parcel Information Portal (ZAPP)
Number of Allowed ADUs
- Single Dwelling Unit Zone A Single Dwelling Unit Zone is a zone that allows a maximum of one dwelling unit on a single lot. Permitted within Single Dwelling Unit zones:
- 1 Single Primary Dwelling Unit
- 1 Accessory Dwelling Unit
- 1 Junior Accessory Dwelling Unit
- Single Dwelling Unit Zone Exception for Existing Multi-Dwelling Unit Buildings Within Single Dwelling Unit Zones, where a legally permitted, previously conforming multi-dwelling unit structure exists, ADUs may be constructed in accordance with the multiple-dwelling unit Zone provisions outlined below in multiple-dwelling units Zones.
- Other Allowances In addition to the Dwelling Units, Guest Quarters and Non-Habitable Accessory Structures are also allowable.
ADUs proposed in conjunction with the City’s implementation of California Senate Bill 9 (2021-2022) are subject to the provisions of §143.1305(c). The provisions in SDMC Chapter 14, Article 3, Division 13 will also require a signed affidavit from the Record Owner.
Multiple-Dwelling Unit Zones
A multiple-dwelling unit Zone is a zone that allows more than one dwelling unit on a single lot.
- Conversions or Interior Alterations of Existing Structures
- Existing Habitable Area: The maximum number of ADUs permitted within the habitable areas of an existing multiple-dwelling unit structure is 25% of the total number of existing dwelling units. One ADU is permitted where the percentage calculation yields less than one ADU.
- Existing Non-Habitable Area: The number of ADUs permitted within the non-habitable areas of an existing multiple-dwelling unit structure is unlimited. Examples include storage rooms, boiler rooms, passageways, attics, basements, and garages.
- Addition of Floor Area to Existing Structures New additional floor area to an existing multiple-dwelling unit structure may not be used to create ADUs.
- Construction of New Attached or Detached Structures A maximum of two attached or detached ADUs are permitted on premises with an existing or proposed multiple-dwelling unit structure. The two ADUs may be within one structure or two separate structures.
- Multiple-Dwelling Unit Zones with an Existing Single-Dwelling Unit Building Within multiple-dwelling unit zones, where a legally permitted single-dwelling unit structure exists, the premises may construct ADUs in accordance with the Multiple-Dwelling Unit Zone provisions outlined above.
The premises may construct the ADU(s) without a requirement to construct any other additional standard dwelling units.
ADU Size Regulations
- The minimum gross floor area for an attached or detached ADU is 150 square feet.
- The maximum gross floor area for an attached or detached ADU is 1,200 square feet.
- The gross floor area of an ADU is included in the total gross floor area of a premises.
- An ADU may exceed the total gross floor area of a premises. However, the ADU shall be limited to a maximum of 800 square feet of gross floor area.
- Minimum room dimension requirements contained within the California Building Standards Code are applicable.
- The conversion of an existing accessory structure or a portion of the existing primary residence to an ADU is not subject to the 1,200-square-foot maximum gross floor area limitation.
ADU Setback Regulations
- Conversions or Interior Alterations of Existing Structures Where an existing structure is converted to an ADU, the ADU may continue to observe the setbacks of the existing structure.
- Demolition and Reconstruction of Existing Structures Where an existing structure is demolished and reconstructed as an ADU, the ADU may continue to observe the setbacks of the original structure. The reconstruction must be at the same location and to the same dimensions as the original structure.
- Addition of Floor Area to Existing Structures Where an addition to an existing structure is proposed for an ADU, the ADU must observe the Front Yard and Street-Side Yard Setbacks of the Zone. The ADU may encroach into the Side Yard and Rear Yard Setbacks of the Zone, including up to the Property Line if the structure height is 16 feet or less.
If the side or rear property line abuts another premises that is residentially zoned or developed with exclusively residential uses, an ADU with a structure height that exceeds 16 feet or is multi-story shall observe 4-foot Interior-Side Yard and Rear Yard setbacks.
- Construction of New Detached Structures Where a new structure is proposed as an ADU, the ADU must observe the Front and Street-Side Setbacks of the Zone. The ADU may encroach into the Side and Rear Setbacks of the Zone, including up to the Property Line.If the side or rear property line abuts another premises that is residentially zoned or developed with exclusively residential uses, an ADU with a structure height that exceeds 16 feet or is multi-story shall observe 4-foot Interior-Side Yard and Rear Yard setbacks.
- Building Code Requirements ADUs must comply with all requirements in the California Building Standards Code, including requirements for fire separation distance, opening protection, allowable height, and allowable area.
- Landscape Requirements If construction of an ADU or JADU would bring the total number of ADUs or JADUs on the premises to a total of two or more, two trees shall be provided on the premises for every 5,000 square feet of lot area, with a minimum of one tree per premises. If planting of a new tree is required to comply with this section, the tree shall be selected in accordance with the Landscape Standards of the Land Development Manual and the City’s Street Tree Selection Guide and shall comply with the street tree requirements of SDMC Section 1420409(a).The Climate Action Plan Consistency Regulations apply to all projects that result in three or more total dwelling units on a premises (SDMC §143.1403).
ADU Parking Regulations
- No parking spaces are required for ADUs outside of the Coastal Overlay Zone. No parking is required within the Coastal Overlay Zone except if the property is located within the Beach Impact Area of the Parking Impact Overlay Zone and outside of a sustainable development area. In this instance, one off-street parking space is required unless any of the following apply:
- The ADU is 500 square feet or less;
- The premises is located within a historical district that is a designated historical resource;
- The ADU is attached to the proposed or existing primary dwelling unit or accessory structure;
- The premises is located within a residential permit parking district;
- There is a car share vehicle located within one block of the premises.
- The conversion or demolition of a garage, carport, or covered parking structure does not require the replacement of parking spaces, except if the property is located in the Coastal Overlay Zone and within the Beach Impact Area of the Parking Impact Overlay Zone and outside of a sustainable development area. If the construction of an ADU or JADU involves the conversion or demolition of a covered parking structure and the existing driveway curb is no longer compliant with City standards, the associated driveway shall be closed to the satisfaction of the City Engineer.
- Where off-street parking spaces are provided, parking spaces may be within setback areas, and in any configuration, including tandem configurations and mechanical lifts.
- Where off-street parking spaces are provided, parking spaces must be entirely within the property line of a premises, and must conform to the dimension standards of SDMC Chapter 14, Article 2, Division 5.
ADU Other Regulations
- The property owner is not required to live on-site.
- An ADU may not be leased for a term of less than 31 consecutive days. An ADU may not be used for Transient Lodging.
ADU Fire Sprinkler Systems
Reference Technical Bulletin RESD 3-4 for fire sprinkler requirements in ADUs.
ADU Solar Photovoltaic Systems
- Newly constructed ADUs are subject to the California Energy Code requirement to provide solar panels if the unit(s) is a newly constructed, non-manufactured, detached ADU. Per the California Energy Commission (CEC), the panels can be installed on the ADU or the primary dwelling unit.
- ADUs constructed within existing space or as an addition to existing homes, including detached additions where an existing detached building is converted from non-residential to residential space, are not subject to the California Energy Code requirement to provide solar panels.
ADU Bonus Program
- Inside of sustainable development areas, for every qualifying on-site deed-restricted ADU (Table 141-03A), one additional non-deed-restricted bonus ADU is allowed. The development is required to comply with the maximum floor area ratio and maximum lot coverage requirements of the underlying zone.
- Inside of sustainable development areas, where a Project proposes qualifying on-site deed-restricted ADUs (Table 141-03A), the maximum number of bonus ADUs is unlimited. The development is required to comply with the maximum floor area ratio, maximum lot coverage requirements, and other applicable development standards of the underlying zone.
- Outside of sustainable development areas, where a Project proposes qualifying on-site deed-restricted ADUs (Table 141-03A), the maximum number of bonus ADUs is one.
- Reference SDMC §141.0302(c)(2)(G) for program details.
- In addition to the affordable ADU bonus, one additional market rate accessible ADU is allowed when at least two affordable ADUs are proposed a premises in accordance with SDMC §141.0302(c)(2)(G). The bonus accessible ADU must be located on an accessible route and meet the requirements of Chapter 11A of the California Building Code and the ADU shall include at least one accessible bathroom, one accessible kitchen, and one accessible bedroom, and the accessible ADU shall be located on an accessible route, as defined by the California Building Code.
Junior Accessory Dwelling Unit (JADU)
What is a JADU?
A Junior Accessory Dwelling Unit (JADU) is a dwelling unit that is not less than 150 square feet and no more than 500 square feet within an existing or proposed single dwelling unit or an attached garage on a residential single dwelling unit lot. A JADU may include separate sanitation facilities or may share sanitation facilities with the single dwelling unit. The JADU shall provide a kitchen or efficiency kitchen.
JADU Allowable Locations
JADUs are permitted in Zones where Use Regulation Tables identify JADUs as allowable Limited Uses. Generally, JADUs are allowed in Single Dwelling Unit Zones.
- Base Zone Designations – SDMC Chapter 13, Article 1, Divisions 1 through 7.
- Planned District Ordinance Zone Designations – Use Regulation Tables: SDMC Chapter 15, Articles 2 through 20.
- Find your Zone Designation by visiting the Zoning and Parcel Information Portal (ZAPP)
Number of JADUs Allowed
- Single Dwelling Unit Zones A Single-Family Zone is a zone that allows a maximum of one dwelling unit on a single lot. Permitted within Single Dwelling Unit Zones:
- 1 Single Primary Dwelling Unit
- 1 Accessory Dwelling Unit
- 1 Junior Accessory Dwelling Unit
Pursuant to Government Code (section 65852.22, subdivisions (a)(1) and (a)(4)), 1 JADU may be constructed within an existing or proposed:
- Single Primary Dwelling Unit
- Garage attached to a Single Primary Dwelling Unit
Other Allowances: In addition to the Dwelling Units, Guest Quarters and Non-Habitable Accessory Structures are also allowable.
- Multiple-Dwelling Unit Zones
- A Multiple-Dwelling Unit Zone is a zone that allows more than one dwelling unit on a single lot.
- JADUs are not permitted within Multiple-Dwelling Unit Zones.
JADU Size Regulations
- The minimum gross floor area for a JADU is 150 square feet.
- The maximum gross floor area for a JADU is 500 square feet.
- The gross floor area of an JADU is included in the total gross floor area of a premises.
- Minimum room dimension requirements contained within the California Building Standards Co are applicable.
JADU Parking Regulations
- No parking spaces are required for JADUs, except if the property is located in the Coastal Overlay Zone and within the Beach Impact Area of the Parking Impact Overlay Zone and outside of a sustainable development area. In this instance, one off-street parking space is required unless any of the following apply:
- The JADU is 500 square feet or less.
- The premises is located within a historical district that is a designated historical resource.
- The JADU is attached to the proposed or exiting primary dwelling unit or accessory structure.
- The premises is located within a residential permit parking district.
- There is a car share vehicle located within one block of the premises.
- The conversion or demolition of a garage, carport, or covered parking structure does not require the replacement of parking spaces, except if the property is located in the Coastal Overlay Zone and within the Beach Impact Area of the Parking Impact Overlay Zone and outside of a sustainable development area.
- Where off-street parking spaces are provided, parking spaces may be within setback areas, and in any configuration, including tandem configurations and mechanical lifts.
- Where off-street parking spaces are provided, parking spaces must be entirely within the property line of a premises and must conform to the dimension standards of SDMC Chapter 14, Article 2, Division 5.
JADU Regulations
- A JADU shall maintain the same setback requirements of an existing or proposed Single Primary Dwelling Unit.
- A JADU shall have a separate exterior entry from the Single Primary Dwelling Unit.
- A JADU shall provide a separate independent kitchen or efficiency kitchen from a Single Primary Dwelling Unit.
- A JADU may include separate independent sanitation facilities or may share sanitation facilities with an attached Single Primary Dwelling Unit or attached ADU.
- Where a JADU exists on a premises, the property owner is required to live on-site.
- The property owner may live in any of the on-site dwelling units.
- A JADU may not be leased for a term of less than 31 consecutive days. A JADU may not be used for Transient Lodging.
JADU Fire Protection Systems
- Where a primary dwelling unit is provided with a fire sprinkler system, the JADU will be required to install a fire sprinkler system. The JADU may be required to fire rate the walls that are shared with the primary unit, or ensure that the sprinkler system in the primary dwelling unit communicates with the sprinkler system in the JADU.
- Where a primary dwelling unit is not required to provide a fire sprinkler system, a proposed JADU will not be required to install a fire sprinkler system. However, the JADU may be required to construct a fire rated wall when sharing a wall with an existing or proposed single-family dwelling when the JADU includes an independent kitchen and independent sanitation facilities.
JADU Solar Photovoltaic Systems
JADUs are not required to provide a solar photovoltaic system.
JADU Agreement Required
Before issuing a Building Permit, a Junior Unit Agreement is required that neither the primary dwelling unit nor the junior unit may be sold or conveyed separately and that the record owner shall reside in either the primary dwelling unit, ADU or JADU.
Permit Application Process and Requirements
Building Permit Requirement
A Building Permit is required to create an ADU or JADU. There are no exemptions. Depending upon the number of dwelling units created by the ADU(s), either a Combination Building Permit or a Building Permit will be issued.
- Combination Permits
- A Combination Building Permit will be issued for any new structure with no more than two (2) ADUs. A JADU can also be included in the structure along with up to two (2) ADUs as long as the JADU does not contain an independent kitchen and independent sanitation facilities.
- A Combination Building Permit will be issued for an existing Single Dwelling Unit with a detached/attached ADU. A JADU can also be included in this existing structure.
- A Combination Building Permit will be issued for an existing duplex that converts an existing detached/attached garage to a new ADU. No additional area can be added to this structure.
- Building Permits
- A Building Permit will be issued for any new structure with three (3) or more ADUs.
- A Building Permit will be issued for any ADU added to an existing Multi-Dwelling Unit (MDU) structure.
- A Building Permit will be issued for any duplex that converts, or that is adding a new ADU that is not a garage conversion.
Coastal Development Permit Requirement
- A Coastal Development Permit (CDP) is required for the creation of all ADUs and JADUs that are not completely contained in the existing primary structure or include increases in habitable area, or include conversion of non-habitable space within the Coastal Overlay Zone.
- As of Sept. 7, 2022, ADUs and JADUs proposed in the non-appealable area of the Coastal Overlay Zone are eligible for a City-issued Coastal Development Permit, provided that specific administrative findings are made to ensure that the ADU/JADU(s) conform to the Local Coastal Program.
- If the administrative findings outlined in §126.0708(c) are satisfied, the Coastal Development Permit shall be issued as a Building Permit in accordance with Process One as specified in §112.0502 and Chapter 12, Article 9, Division 2.
- The creation of a JADU within the Coastal Overlay Zone does not categorically require a CDP. Qualifying JADU projects within the Coastal Overlay Zone meeting the exemption criteria of SDMC §126.0704 may be permitted without a CDP.
Other Permit Requirements
- Single Primary Dwelling Units with ADUs or JADUs (R3 Occupancy Classifications): Project Submittal Manual Section 2A
- Multiple-dwelling units with ADUs or JADUs (All Other Occupancy Classifications): Project Submittal Manual Section 2
- Minimum submittal requirements for each ADU or JADU include the following:
- Plans / Calculations:
- Site Plan and Vicinity Map (See Information Bulletin 122).
- Floor Plans and Roof Plans.
- Elevations and Sections (as applicable).
- Structural plans and details.
- Structural calculations and/or truss calculations (as applicable).
- Title 24 Energy calculations.
- Forms
- General Application, DS-3032
- Water Meter Data Card, DS-16
- Storm Water Applicability Checklist, DS-560
Fees
- For a complete list of all applicable fees, reference Information Bulletin 501 and visit the Fees page.
- ADUs and JADUs are subject to payment of School Fees. For detailed information of when this fee applies, reference Information Bulletin 146.
- Beginning Aug. 9, 2022, the General Plan Maintenance Fee applies to all ADU and JADUs.
- ADUs are subject to Development Impact Fee requirements in accordance with SDMC §142.0640(b)(1).
- Projects proposing more than one ADU will be required to pay the Regional Transportation Congestion Improvement Program Fees.
- ADUs/JADUs are not exempt from the City’s Inclusionary Affordable Housing Regulations (SDMC Ch. 14, Article 2, Division 13). Projects proposing one or more ADU that results in 10 or more total dwelling units (or five or more total dwelling units in the Coastal Overlay Zone) are subject to Inclusionary Housing requirements.
- Projects that propose to pay the Inclusionary In Lieu Fee are subject to the requirements of §142.1306.
- Affordable ADUs proposed in accordance with §141.0302(c)(2)(D) are NOT exempt from the net building area calculations of the In Lieu Fee unless the units are deed restricted for 55 years at 60% of the area median income (or lower).
- Fee Payment Options
- Customers are encouraged to make online payments by e-check or credit card. Bank and processing fees apply. There are no minimum or maximum credit card transaction amounts when making payments online.
- Customers can also drop check payments into the payment drop-off safe located on the first-floor lobby of the downtown Development Services Center during business hours. All payments must be made out to “City Treasurer.”
- Customers can also request a Payments appointment to make credit card or check payments in person at the Development Services Center. With in-person payments, the minimum credit card transaction amount is $10, and the maximum is $99,999.99. Payments with an “SAP Invoice Number” are not accepted here. Instead, these invoices can be paid with the City Treasurer; Learn more.
How to Apply
Applications for Accessory Dwelling Units and Junior Accessory Dwelling Units are now being accepted in digital paperless formats through an Online Permitting Account.
Digital Application Portal
- Navigate to the Development Services Application Portal.
- For new Permit Applications, within the Building Applications section, select “Building Construction.”
- For changes to existing issued Permits (under construction), request: “Construction Change to a Building Permit.”
Accessory Dwelling Units
ADU Fee Waiver Program Notice:
The County of San Diego trial impact fee waiver went into effect January 9, 2019. This was a five-year trial waiver that ended on January 9, 2024.
Plan check fees were waived for qualifying projects that started before January 9, 2024. Fees that are collected at permit issuance will not be waived if the permit is issued after January 9, 2024.
If you live in the unincorporated area of the County of San Diego, please click here for the complete Accessory Dwelling Unit (ADU) and Junior Accessory Dwelling Unit (JADU) regulations.
If your property is within the County of San Diego, one ADU and one JADU may potentially be permitted on lots with an existing or proposed dwelling unit.
To find out if you live in the unincorporated area of the County of San Diego please click here.
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What is an ADU?
What is a JADU? |
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NEW! Browse Pre-Approved County Standard ADU Building Plans! |
ADU’s and JADU’s can be created in many different shapes and styles:
| Where is an ADU allowed? An ADU can be located on residentially zoned property that has an existing single-family residence. For a complete list of ADU requirements, please click here. |
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Is a building permit required for an ADU? Yes, you will be required to obtain a Building Permit to ensure that the new house meets all the zoning, building, health & safety codes. |
| What size ADU is allowed? How big? An ADU is intended to be secondary in size to the single-family residence. An ADU attached to a primary dwelling may be up to 50% of the size of the single-family residence, up to a maximum of 1,200 square feet. An ADU detached from the single-family residence may be up to 1,200 square feet, regardless of the size of the residence. |
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Examples for allowable ADU sizes are provided below:
| Square Footage of Existing single-family residence (SFD) | Maximum Allowed Square Footage for Detached ADU | Maximum Allowed Square Footage for Attached ADU (up to 50% of SFD) | |
| Studio or 1 Bedroom ADU | 2 Bedrooms or more ADU | ||
| 500 sq. ft. | 1,200 sq. ft. | 850 sq. ft. | 1,000 sq. ft. |
| 1,000 sq. ft. | 1,200 sq. ft. | 850 sq. ft. | 1,000 sq. ft. |
| 1,800 sq. ft. | 1,200 sq. ft. | 900 sq. ft. | 1,000 sq. ft. |
| 2,000 sq. ft. | 1,200 sq. ft. | 1,000 sq. ft. | 1,000 sq. ft. |
| 2,200 sq. ft. | 1,200 sq. ft. | 1,100 sq. ft. | 1,100 sq. ft. |
| 3,000 sq. ft. | 1,200 sq. ft. | 1,200 sq. ft. | 1,200 sq. ft. |
| 4,500 sq. ft. | 1,200 sq. ft. | 1,200 sq. ft. | 1,200 sq. ft. |
After reviewing the information provided on ADU’s and JADU’s, if you still have any questions please contact us via email at [email protected] or [email protected]
To find out how your property is zoned, please click here and enter your APN # on the upcoming screen.
For the complete list of ADU & JADU regulations, please click here.
For Instructions for obtaining a building permit, please click here.
For the min. plot plan requirements, please click here.
Welcome to the City of Oceanside’s Accessory Dwelling Unit (ADU) resource page. The information on this page is intended to help Oceanside residents understand zoning regulations, building codes, and the process for constructing an ADU in the City of Oceanside.
The City Council adopted a revised ADU Ordinance on February 23, 2022 in response to the ADU legislation enacted by the State. The ADU Ordinance is located in Article 30, Section 3006 of the Zoning Ordinance and also available at the following link:
Key Provisions of ADU Ordinance
The State legislature enacted ADU legislation to further reduce the regulatory barriers and costs and streamline approval of ADUs. The following are the key changes to the ADU Ordinance as mandated by Government Code Section 65852.2:
- An 850 square foot ADU (studio/one bedroom) or a 1,000 square-foot ADU (two bedroom or more), either attached or detached from the primary dwelling, with a maximum height of 16 feet and four-foot side and rear setbacks shall be permitted in any circumstance subject to compliance with all building codes. No lot coverage requirement shall apply.
- A Junior Accessory Dwelling Unit (JADU) (Government Code 65852.22) shall be allowed within the space of an existing/proposed primary dwelling. State law requires the property owner to live on the premises. A JADU shall meet the following requirements:
- Unit shall not exceed 500 square feet.
- Unit shall have an efficiency kitchen with cooking facility and appliances, a food preparation counter, and storage cabinets.
- Unit may include a separate sanitation facility or share the sanitation facilities with the existing dwelling.
- Unit shall include exterior access from the primary dwelling.
- No parking space is required.
- Requires the recordation of a deed restriction prohibiting the separate sale of the unit and restricting the size and attributes.
- JADU & ADU Combination: A JADU may also be established in the primary dwelling in combination with a detached ADU, that is either; 1) an ADU within the walls of a primary dwelling, 2) an ADU within an existing accessory structure, or 3) an attached or detached, new construction ADU subject to the Statewide Exemption ADU provisions as prescribed in Section 3006.D.1.d. of the Zoning Ordinance. State law requires the property owner to live on the premises.
- Multi-family Provisions (Only applies to existing multi-family development):
- An existing multi-family dwelling shall allow the construction of at least one ADU or up to 25 percent of the existing units in non-livable space, including, but not limited to, storage rooms, garages, passageways, attics, basements, or closets. The existing livable space of a unit shall not be converted into an ADU. In addition;
- Not more than two detached ADUs with a maximum size of 850 square-feet, or 1,000 square-feet with more than one bedroom, and a maximum height of 16 feet and four-foot side and rear setbacks shall be permitted in addition to the above-referenced provision.
- Detached ADUs may be constructed above existing detached accessory structures, including garages or similar structures, subject to maximum height and setback requirements of the underlying zoning district.
- Garage conversions that displace the parking for the primary dwelling shall not require replacement parking or a parking space for the ADU.
- The parking waiver for within one-half mile of public transit is now defined as “walking distance” rather than “as the crow flies.”
- Rental of an ADU or JADU shall be for a term longer than 30 says per state law. No STRs allowed.
- Building permit review of ADU shall be completed in 60 days. The clock stops when the city provides plan check comments to the applicant and restarts when the applicant resubmits plans. An ADU constructed concurrently with a new single-family dwelling shall not be approved until the permit for the primary dwelling is approved.
In addition to state law, the City will continue to allow ADUs as provided in Article 30, Section 3006 of the Zoning Ordinance as follows:
- A detached ADU up to a maximum of 1,200 square-feet subject to standard height, lot coverage, and setbacks of the zoning district in which it is located.
- An attached ADU not to exceed 50% of the primary dwelling.
- The ADU should be architecturally similar to the primary dwelling in terms of design, building and roofing materials, colors, and exterior finishes.
- An attached ADU taking advantage of the four foot setback provision shall not be allowed to exceed a height of 25 feet. A detached ADU taking advantage of the four foot setback provision shall not exceed 16 feet (or 18 feet if the site is located within .5 miles walking distance of a rail station). An attached or detached ADU exceeding the above height limits must comply with the setbacks of the zoning district in which it is located. For example, a second story ADU addition above the primary dwelling that exceeds 16 feet does not qualify for reduced four foot setbacks.
- Parking design and location shall be in accordance with Section 3006. One parking space shall be required for the ADU unless it qualifies for a parking exemption.
- All development impact fees for which the city has control over have been waived. This excludes school fees. A pro-rated water buy-in fee may be required for additions or detached units based on need to upsize the water meter.
- Building Permit Fees: Detached ADUs shall be assessed fees for a new single-family dwelling. Attached or conversion ADUs shall be assessed fees for an addition/remodel. There is a significant cost savings for attached or conversion units versus new detached construction.
The City’s Accessory Dwelling Unit Ordinance is located in Article 30, Section 3006 of the Zoning Ordinance. Key revisions to the ordinance include the waiver of certain development impact fees, flexible parking requirements or parking waivers, and a streamlined permit review process.
Please review the ADU Informational Guide and Fact Sheet, and for additional information regarding ADU regulations, please contact the Planning Division or visit the Development Services Department at 300 North Coast Highway.
Documents
Accessory Dwelling Units
What is an accessory dwelling unit?
An accessory dwelling unit is a secondary housing unit located on a residential lot. ADUs can be attached or detached from a primary residence. They can provide an additional source of income for homeowners, accommodate multigenerational housing and help increase the supply of affordable housing. A junior accessory dwelling unit is an ADU created within the walls of a proposed or existing single-family home and may be no larger than 500 square feet.
What are the required development standards (setbacks, height, square footage, etc.)?
All current development standards and processing requirements are summarized in the ADU Information Bulletin.
How much does it cost to permit and build an ADU in Carlsbad?
Permitting fees to construct most accessory dwelling units cost approximately $2,000 to $4,000 and depend on the square footage of the unit. Fee costs are outlined in the Master Fee Schedule FY 2023-24. Construction costs for an ADU can be anywhere from $10,000 for a simple bedroom conversion to $300,000 for a higher‐end companion unit.
Many ADUs are exempt from impact fees due to not meeting the square footage threshold requirement.
Accessory Dwelling Unit Permit Ready Program (preapproved ADU building plans)
In accordance with the city’s Housing Element Program 1.2, the city is offering free pre-approved ADU building plans that provide a variety of options in terms of size, type and style. These preapproved plans are intended to encourage the development of accessory dwelling units by saving homeowners three to six months of planning and design time and the approximately $8,000-$16,000 in private architectural design fees associated with preparing ADU building plans. For more information, please visit the ADU Permit Ready Program webpage.
ACCESSORY DWELLING UNITS
OVERVIEW
An accessory dwelling unit (ADU) is an attached or detached residential dwelling unit, on the same lot as an existing single-family dwelling unit which is zoned for single-family or multifamily use, that provides complete independent living facilities for one or more persons. This includes permanent provisions for living, sleeping, eating, cooking, and sanitation, all on the same parcel as the primary, single-family dwelling. An ADU can be an efficiency unit, as defined in Section 17958.1 of Health and Safety Code, or a manufactured home, as defined in Section 18007 of the Health and Safety Code.
A junior accessory dwelling unit (JADU) is a residential dwelling unit that is no more than 500 square feet in area, contained entirely within an existing single-family residence, and can have separate sanitation facilities from, or shared sanitation facilities with, the existing residence.
BENEFITS OF ADUs
ADUs and JADUs provide housing opportunities within existing neighborhoods creating housing that is already connected to the local character and infrastructure. The additional units help diversify the market for renters while providing supplemental income for homeowners, and thus increasing affordability throughout Encinitas.
ORDINANCES & CHANGES IN STATE LAW
City ADU and JADU Ordinances
Revisions to the City’s ADU Ordinance were approved on March 14, 2018. The revisions provide reliefs from various development standards and make the permitting and construction process easier and more affordable. A second ordinance, also approved on March 14, 2018, allows for the creation of Junior Accessory Dwelling Units (JADU) within existing dwellings.
The ordinances were submitted to the California Coastal Commission for final certification on April 27, 2018. On September 14, 2018, the CCC approved the JADU Ordinance, and approved the ADU Ordinance, with modifications. The modifications, which standardized the language and reinforced environmental protections, were included in a follow-up ordinance, which was approved by City Council on October 24, 2018. That ordinance was submitted to the CCC and received final concurrence on December 13, 2018.
The State of California Legislature adopted six new ADU and JADU laws that went into effect January 1, 2020. Ordinance No. 2020-10 was created to bring the City’s Zoning Code into compliance with state law.
On November 18, 2020, the City Council adopted Ordinance No. 2020-10. The Coastal Commission suggested modifications regarding replacement parking, nonconforming conditions, and setbacks.
On February 9, 2022, the City Council adopted Ordinance No. 2022-03 to accept the Coastal Commission modifications regarding nonconforming conditions and setbacks, without accepting the replacement parking modifications. The Coastal Commission suggested another modification, which addresses when a CDP is required for the construction of a new ADU/JADU.
On September 14th, 2022, the City Council adopted Ordinance No. 2022-11 for the modification regarding the CDP requirement. That ordinance was submitted to the CCC and received final concurrence on November 16, 2022.
All three ordinances (2020-10, 2022-03, and 2022-11) are combined and summarized in the first link below.
- ADU Combined Ordinances No. 2020-10, 2022-03, and 2022-11
- JADU Ordinance No. 2018-02
- CCC Modifications Ordinance No. 2018-11
On September 28, 2022, the State of California Legislature adopted two (2) new ADU and JADU bills SB 897 and AB 2221. Both bills went into effect on January 1, 2023.
The applicable municipal code changes were initiated on April 19th, 2023. This initiation directs City staff to update the EMC to comply with the new bills imposed by the state. The resolution of the initiation can be found below:
ADU Ordinance Update Initiation – Resolution 2023-25
Changes in State Law
Updates to the State Law in 2017 initiated the City to draft the new ADU and JADU ordinances. Until the ordinances are certified by the California Coastal Commission, the City is operating under the provisions of the State Law. Visit the California Department of Housing and Community Development webpage for more information on ADUs and the new laws.
On September 30, 2018, SB 1226 was signed into law. This law confirms that a building official has the discretion to apply the building standards that were in effect at the time a residential unit was constructed, so that when a building permit for a residential unit does not exist, the official may make a determination of when the unit was constructed, and issue a retroactive building permit based on the standards of that determination.
This new law could be applied to units that are currently in the City’s Affordable Unit Policy (AUP). The City’s AUP program, which went into effect on January 1, 1996, provides amnesty to property owners of units that were constructed without permits. The units must be brought up to current building and fire codes and, in exchange, the unit is restricted at an affordable rent to very-low and low income households. This program was recently extended by City Council to June 16, 2026.
APPLY FOR ADU APPROVAL
The following documents have been created to assist you in the preparation of your Building Permit submittal for your PRADU dwelling. The Housing for Generations catalog is a resource for residents interested in adding an ADU to their property. The Processing Guide provides step-by-step instructions to assist in preparing your Building Permit submittal. The complete PRADU Plan Sets for download are listed below.
- Housing for Generations: A Guide to Building Accessory Units in Encinitas
- The Processing Guide entails 7 steps:Step 1: Obtain Permit MaterialsStep 2: Review and Complete Material
Step 3: Additional Submittal
Step 4: Consult with City Staff
Step 5: Application Submittal
Step 6: Application Review
Step 7: Permit Release/Construction/Inspection/Occupancy
- Checklist:
- Hold Harmless Statement
- Housing H-Form
- Stormwater Intake Form
PRADU OVERVIEW
The PRADU Program encourages the construction of ADUs by offering property owners a selection of pre-approved ADU building plans that can be downloaded from this page. The permit-ready plans include customizable options to allow for variations in exterior materials and door and window fenestrations to express individual owners’ tastes and respect community character. The program assists property owners in creating ADUs by providing customizable plans, expediting the process, and reducing preconstruction fees. The program also helps the city meet strategic plan goals by providing diverse housing options throughout the city.
Program History
After releasing a request for proposal, the City selected two local architects to collaborate with to establish criteria and create a collection of plans for the PRADU Program. The architects were tasked with preparing a series of units: a studio, a one-bedroom, a two-bedroom, and a three-bedroom. Each architect’s set of plans provide unique variations and benefits. The options from Design Path Studio are designed in a way that makes it easy for the owners to add bedrooms in the future. The options from DZN Partners offer an expansive list of exterior options and roof lines.
PERMIT-READY ACCESSORY DWELLING UNIT (PRADU) PROGRAM & BUILDING PLANS
PRADU Building Plans
**All application submittals are now done online via the City’s Customer Self Service website.** (Registration required)
*Please coordinate with SDG&E prior to the building permit submittal to determine their utility connection requirements.
*A deferred building (energy efficiency) permit for solar will be required for the PRADU building permit.
Design Path Studios
DZN Partners
TIMELINE AND WORKSHOPS
Timeline and Workshops
March 11, 2019
Encinitas Community Center, Banquet Room, 1140 Oakcrest Dr., 5:30-8:00pm
Housing for Generations – ADU Workshop #2
Presentation of PRADU program. City staff and the PRADU Program Architects were available to discuss the City’s new Permit Ready Accessory Dwelling Units (PRADU) Program
January 28, 2019
Community Room, Encinitas Library, 540 Cornish Dr., 4:00-7:00 pm
Housing for Generations ADU Open House: City staff and the PRADU Program Architects were available to discuss the City’s new Permit Ready Accessory Dwelling Units (PRADU) Program, as well as changes to the City’s Accessory Dwelling Unit zoning code, and SB 1226 and the Affordable Unit Policy (AUP).
January 22, 2019
Poinsettia Room, City Hall, 505 S. Vulcan Ave., 6:00-8:00 pm
Housing for Generations ADU Workshop: Learn about changes to the City’s Accessory Dwelling Unit zoning code, SB 1226 and the Affordable Unit Policy (AUP), and the City’s new Permit Ready Accessory Dwelling Units (PRADU) Program.
January 9, 2019
City Council Chambers, City Hall, 505 S. Vulcan Ave., 6:00 pm
Presentation to City Council on updates to the Accessory Dwelling Unit zoning code, and a preview of the building plans for the Permit Ready Accessory Dwelling Units (PRADU) Program.
- ADU Handout
- Housing for Generations Presentation (Including PRADU floor plans and renderings)
March 11, 2019
Encinitas Community Center, Banquet Room, 1140 Oakcrest Dr., 5:30-8:00pm
Housing for Generations – ADU Workshop #2
Presentation of PRADU program. City staff and the PRADU Program Architects were available to discuss the City’s new Permit Ready Accessory Dwelling Units (PRADU) Program
January 28, 2019
Community Room, Encinitas Library, 540 Cornish Dr., 4:00-7:00 pm
Housing for Generations ADU Open House: City staff and the PRADU Program Architects were available to discuss the City’s new Permit Ready Accessory Dwelling Units (PRADU) Program, as well as changes to the City’s Accessory Dwelling Unit zoning code, and SB 1226 and the Affordable Unit Policy (AUP).
January 22, 2019
Poinsettia Room, City Hall, 505 S. Vulcan Ave., 6:00-8:00 pm
Housing for Generations ADU Workshop: Learn about changes to the City’s Accessory Dwelling Unit zoning code, SB 1226 and the Affordable Unit Policy (AUP), and the City’s new Permit Ready Accessory Dwelling Units (PRADU) Program.
January 9, 2019
City Council Chambers, City Hall, 505 S. Vulcan Ave., 6:00 pm
Presentation to City Council on updates to the Accessory Dwelling Unit zoning code, and a preview of the building plans for the Permit Ready Accessory Dwelling Units (PRADU) Program.
- ADU Handout
- Housing for Generations Presentation (Including PRADU floor plans and renderings)
ADU GRANT PROGRAM
The California Housing Finance Agency (Cal HFA) accepts applications for the ADU Grant Program, which provides up to $40,000 towards pre-development and non-recurring closing costs associated with the construction of the ADU. Predevelopment costs include site prep, architectural designs, permits, soil tests, impact fees, property survey, and energy reports.
To qualify:
- Applicants must own a single-family home or 2-4 units on the site where the ADU will be developed.
- Applicants must be income-qualifying households that are low-income (80% of Area Median Income) earning less than $93,440.
- Applicants must receive a construction loan through a certified lender in order to apply for the grant.
Interested? See the Program Term Sheet or call Cal HFA at (916) 326-8800.
For more information, check out this informative video from Cal HFA.
Stay up-to-date on future ADU funding opportunities through Cal HFA – sign up for notifications here.
ACCESSORY DWELLING UNITS (ADUS)
Accessory Dwelling Unit (ADU) – Frequently Asked Questions (FAQ)
An Accessory Dwelling Unit (ADU) means an attached or detached residential unit that provides complete independent living facilities for one or more persons. It shall include permanent provisions for living, sleeping, eating, cooking, and sanitation on the same parcel as a sing-family or multifamily dwelling.
Accessory Dwelling Unit (ADU) Frequently Asked Questions (English)
Unidad de Vivienda Accesoria (ADU) – Preguntas Frecuentes (Español)
Do I Need A Permit?
Fences measuring up to 6 feet in height, detached sheds less than 120 square feet, and retaining walls not more than 4-ft from bottom of footing (which do not support a surcharge) do not require permits. Repairs to existing fixtures such as sinks, toilets or lighting do not require a permit, but the replacement of those same fixtures do. Finish work such as painting, tiling, papering, carpeting and similar finish work are also exempt. Concrete work (flat work) is typically exempt from a building permit, except if part of an accessible path of travel or greater than 30 inches from grade. All other construction will require a permit.
Do I need an Architect or Engineer?
That depends on your project. Typically, single-family dwellings and their accessory structures such as garages, workshops or additions meeting the conventional framing parameters found within the California residential Code, will not require a design by licensed professional. New commercial structures will require a licensed design professional, as well as tenant improvements involving structural or life safety elements. Electrical, plumbing, or mechanical systems within commercial structures may be designed by the California licensed contractor who will be responsible for the installation work.
How many sets of plans are required to submit for a permit?
For all permit types, digital submittal is required by providing plans and supporting documents in PDF format. Paper, hard copy submittals are no longer accepted. Applicable supporting documentation such as soils reports, structural calculations, energy calculations, or truss calculations should also be submitted in PDF format.
What are the current adopted codes and design criteria?
Building Design Criteria
What defines a swimming pool? A spa?
A pool is defined as being 24 inches deep of water intended for recreational use. Perimeter fencing, alarms, and self-closing gates are required. A portable above ground spa is not considered a pool but still requires a perimeter fence and a lockable top. A fountain is not considered a swimming pool.
How deep does a gas pipe or a electrical conduit have to be buried?
Cover is the amount of earth or concrete on top of the pipe or conduit. Metal gas pipe requires 12 inches of cover. The pipe needs to be factory wrapped, as well as all joints. Plastic gas and electric pipe requires 18 inches of cover and a tracer wire for gas pipe. Metal risers are required on gas lines where the run of pipe turns to the surface. The measurement of cover is from the top of the pipe or conduit to the top of the cover.
Where I can find more information?
California Building Standards Commission
Contractors State License Board
ACCESSORY AND JUNIOR ACCESSORY DWELLING UNITS (ADU/JADU)
Accessory Dwelling Units
Accessory Dwelling Units (ADUs) are attached or detached residential dwelling units, on the same lot as an existing single-family dwelling unit. A junior accessory dwelling unit (JADU) is a residential dwelling unit that is no more than 500 square feet in area, contained entirely within an existing single-family residence, and can have separate sanitation facilities from, or shared sanitation facilities with, the existing residence. ADUs are a potential source of affordable housing and can provide Chula Vista homeowners with additional income rental income.
City ADU and JADU Ordinances
The City of Chula Vista permits ADUs and JADUs in areas zoned to allow single-family or multifamily dwelling residential use. Regulations are defined in the Chula Vista Municipal Code’s “ADU Ordinances”
The State of California maintains additional regulations and resources one the State Accessory Dwelling Unit webpage.
ADU Energy Code requirements are detailed on the ADU Energy Code Fact Sheet.
Accessory Dwelling Unit (ADU) Loan Program
As of June 2024, the City is no longer accepting ADU loan applications. This page will be updated if additional funding is allocated to the program in future budget cycles.
The City of Chula Vista has created a pilot program to provide financial assistance to low and moderate-income homeowners to build or repair ADUs on their property. Completed ADUs must be rented at an affordable rent to low-income households for a period of 15 years. Funding is limited and available on a first-come, first-served basis to eligible homeowners. Interested residents should review the program guidelines. The application is currently closed. Questions can be submitted to Brian Warwick, Housing Manager, at [email protected].
ADU Loan Program Guidelines
ADU Loan Application
Is an ADU allowed on your property?
Learn instantly if an ADU is allowed on your property with Symbium Build for Chula Vista. Find and sketch ADU designs that fit your property and your needs, connect with ADU professionals, and get your free report with information about the cost and process of building an ADU. Review the 2-minute demo video for details on how to use the tool.
General ADU FAQs
Q: What is an accessory dwelling unit (ADU)?
A: “Accessory dwelling unit” means an attached or a detached residential dwelling unit that provides complete independent living facilities for one or more persons and is located on a lot with a proposed or existing primary residence. An ADU shall have exterior access from the proposed or existing single-family dwelling. It shall include permanent provisions for living, sleeping, eating, cooking, and sanitation on the same parcel as the single-family or multifamily dwelling is or will be situated. An ADU also includes the following:
1. An efficiency unit, as defined in Section 17958.1 of the Health and Safety Code.
2. A manufactured home, as defined in Section 18007 of the Health and Safety Code. (CVMC 19.58.022B)
Q: What is a junior accessory dwelling unit (junior ADU)?
A: “Junior accessory dwelling unit” means a unit that is no more than 500 square feet in size and contained entirely within the space of a proposed or existing single-family residence. A junior ADU may include separate sanitation facilities or may share sanitation facilities with the existing residence. (CVMC 19.58.023 A)
Q: Where can I put an (ADU)?
A: ADUs can be created in areas zoned to allow single-family or multifamily dwelling residential use. A coastal development permit may be required for ADUs within the coastal zone. (CVMC 19.58.022 C(1))
ADUs may be attached to or located within a proposed or existing primary residence or accessory structure (including attached garages, storage areas or similar structures). ADUs may be detached from the primary residence. (CVMC 19.58.022 C(4)).
If a single-family or multifamily building exists on a lot that isn’t zoned for those uses, an ADU may not be permitted. JADUs are only allowed on lots zoned for single-family residential use.
Q: Can I build a new residence at the same time I build an ADU?
A: Yes: Construction of a primary residence can be in conjunction with the construction of an ADU. (CVMC 19.58.022 C(1))
Q: How many ADUs can I build?
A: a. An ADU is permitted on a lot with a proposed or existing single-family dwelling unit; or
b. Multiple ADUs are permitted within portions of multifamily buildings that are not used as liveable space including, but not limited to, storage rooms, boiler rooms, passageways, attics, basements, or garages; or
c. A minimum of one ADU, or up to 25 percent of the existing multifamily units, is permitted within an existing multifamily dwelling; or
d. Up to two detached ADUs shall be permitted on a lot with an existing multifamily dwelling. (CVMC 19.58.022C(2))
Q: How big can I build an ADU?
A: The total floor area for an attached ADU shall not exceed 50 percent of the total floor area of the proposed or existing primary residence, 850 square feet, or 1,000 square feet for a unit that provides more than one bedroom, whichever is greater.
b. An ADU of at least 800 square feet shall be permitted regardless of floor area ratio, lot coverage or open space requirements of the underlying zone.
c. The total floor area for a detached accessory dwelling shall not exceed 1,200 square feet.
d. An ADU within an existing accessory structure may be increased by a maximum of 150 square feet beyond the same physical dimensions as the existing accessory structure to accommodate ingress and egress. (CVMC 19.58.022 C(3))
Q: How tall can I build an ADU?
A: An ADU, as measured from the ground, shall not exceed the height limit for the primary residence in accordance with the underlying zone, or 18 feet, whichever is greater.
ADU Construction FAQs
Q: What are the setback requirements?
A: ADUs shall conform to the underlying zoning and land use development requirements for primary residences with the following exceptions:
a. A new attached or detached ADU is allowed a setback of no less than four feet from the side and rear lot lines.
b. A new detached ADU shall be located a minimum of six feet from a primary residence.
c. No setback shall be required for an existing garage, living area, or accessory structure constructed in the same dimensions that is converted to an ADU or to a portion of an ADU, and a setback of no less than four feet from the side and rear lot lines shall be required for an ADU that is constructed above an accessory structure. (CVMC 19.58.022 C(6))
Q: Do I have to provide parking?
A: Parking for an ADU is not required in any of the following instances:
a. The ADU is located within one-half mile walking distance of public transit.
b. The ADU is within an architecturally and historically significant historic district.
c. The ADU is part of the proposed or existing primary residence or an accessory structure.
d. The ADU is in an area where on-street parking permits are required, but not offered to the occupant of the ADU.
e. The ADU is located within one block of a car share area. (CVMC 19.58.022 C(7))
f. For purposes of evaluating a property for ADU appropriateness, a duplex is considered a multifamily building. A lot with a duplex can have up to two detached ADUs (CVMC 19.58.022 C.2.d). A duplex can also contain attached ADUs in accordance with CVMC 19.58.022 C.2.b and C.2.c.
g. A lot with two single-family homes may allow for one ADU (CVMC 19.58.022 C.2.a). A lot with two single-family homes cannot take advantage of provisions allowing multiple ADUs.
Q: What if I want or need to provide parking for the ADU?
A: Parking requirements for ADUs shall not exceed one parking space per unit or per bedroom, whichever is less. Parking spaces may be provided in tandem on a driveway; provided, that access to the garage for the primary residence is not obstructed. Off-street parking shall be permitted in setback areas or through tandem parking, unless specific findings are made that parking in setback areas or tandem parking is not feasible based upon specific site or regional topographical or fire and life safety conditions.
b. The required parking space(s) shall be on the same lot as the ADU. This parking is in addition to the parking requirements for the primary residence as specified in CVMC 19.62.170.
c. Notwithstanding CVMC 19.62.190, when a garage, carport, or covered parking structure is demolished in conjunction with the construction of an ADU, or is converted to an ADU that was previously used by the primary residence, replacement parking is not required. If the existing driveway is no longer necessary for access to the converted garage or other required parking, said driveway may be used to satisfy the required parking for the ADU when not exempt from subsection (C)(7) of this section.
d. Access to all required parking shall be from a public street, alley or a recorded access easement. Access from a designated utility easement or similar condition shall not be permitted. For any lot proposing an ADU and served by a panhandle or easement access, the access must be a minimum 20 feet in width.
e. Curb cuts providing access from the public right-of-way to on-site parking spaces shall be acceptable to the City Engineer. A construction permit from the City Engineer shall be obtained for any new or widened curb cuts.
f. Required parking spaces or required maneuvering area shall be free of any utility poles, support wires, guard rails, standpipes or meters, and be in compliance with CVMC 19.62.150.
g. When a required parking space abuts a fence or wall on either side, the space shall be a minimum of 10 feet wide. If this area also serves as the pedestrian access from an ADU to the street, the paving shall be a minimum 12 feet wide.
(CVMC 19.58.022 C(8))
Q: What about utilities (water, sewer, electrical) and a separate address for the ADU?
A: An ADU may be served by the same water and sewer lateral connections that serve the primary residence. A separate electric meter and address may be provided for the ADU. (CVMC 19.58.022 C(9))
Q: Do I have to install fire sprinklers for my ADU?
A: ADUs shall not be required to provide fire sprinklers if they are not required for the primary residence. (CVMC 19.58.022 C(13))
ADU Costs and Fees
Q: How much will it cost to build an ADU/JADU?
The costs of building an ADU or JADU can vary, depending on the type of unit you are constructing and the complexity of your existing structure. Fees will be required at the time you submit your application and will be collected at different stages along the process. For more information on fees please visit our “How Much will Your Permit Cost” page. Applicable fees may include building permit fees (plan review and inspection), Fire Department plan review, Development Impact Fees (if any), and other fees charged by outside agencies (e.g. school districts, water/sewer districts).
Pursuant to California Government Code Section 65852.2(f)(3)(A), Junior Accessory Dwelling Units and Accessory Dwelling Units of less than 750 square feet are exempt from all development impact and in-lieu fees. Accessory Dwelling Units 750 square feet or larger are charged proportionately to the primary residence, on a square footage basis.
Q: Are all ADU subject to paying Development Impact Fees?
A: ADU 750 sq ft and above are subject to paying Development Impact Fees. ADU below 750 sq ft are exempt
Q: How will I know how much I will owe in Development Impact Fees?
A: A Development Impact Fee estimate will be provided to the permit applicant during the plan check review process. If you would like to request a preliminary estimate prior to applying for a permit, please contact Facilities Financing
Q: I have received my Development Impact Fee estimate, are these fees guaranteed?
A: No, the rates on the Development Impact Fee Estimate are not binding. The Development Impact Fee rates are indexed annually October 1st the fees shall be calculated based on the rate in effect at the time of payment
Q: When are Development Impact Fees due?
A: The permit applicant has the option of paying the Development Impact Fees at permit issuance or most of the Development Impact Fees, with the exception of Traffic Signal, may be deferred until final inspection
Q: Are the permit fees and school fees included in the Development Impact Fees?
A: No, the permit fees and school fees are not part of the Development Impact Fees collected. Permit related fees will be determined during the permit intake process by DSD Front Counter staff, school fees are calculated by Sweetwater Union High School District and Chula Vista Elementary School district. For more information regarding permit fees and school fees contact the DSD Front Counter [email protected] or at 619-476-2332
Facilities Financing Contact Information:
For more information visit the Development Impact Fee website