Over 33 years of experience that you can benefit from.

Over 33 years of experience that you can benefit from.

San Diego Accessory Dwelling Units (ADUs) Information

1. Introduction to ADUs in San Diego

Welcome to the San Diego ADU Information Hub!
Accessory Dwelling Units (ADUs) provide an excellent opportunity for homeowners to create additional living space, generate rental income, or accommodate extended family members. This webpage provides detailed information about the regulations governing ADUs in San Diego, California, and guides you through the permitting process.

2. Regulations Governing ADUs

Definition of ADUs and JADUs

  • Accessory Dwelling Unit (ADU): A residential unit that provides complete independent living facilities for one or more persons, located on a lot with an existing or proposed primary residence. It includes living, sleeping, eating, cooking, and sanitation facilities.
  • Junior Accessory Dwelling Unit (JADU): A smaller residential unit, up to 500 square feet, within the existing walls of a single-family home, that includes an efficiency kitchen and access to sanitation facilities.

Zoning and Location Requirements

  • ADUs are permitted in residential zones, including single-family and multifamily zones. The ADU must be on the same lot as an existing or proposed primary dwelling.

Development Standards

  • Size Limits:
    • Detached ADUs: Maximum size is 1,200 square feet.
    • Attached ADUs: Maximum size is 50% of the primary residence’s square footage, up to 1,200 square feet.
    • JADUs: Maximum size is 500 square feet.
  • Setbacks:
    • A minimum setback of four feet is required from the rear and side property lines.
    • No setback is required if the ADU is created within an existing structure.
  • Height Limits:
    • Detached ADU: Maximum 16 feet in height.
    • Attached ADU: Must comply with the height limits of the primary residence.

Parking Requirements

  • One off-street parking space is required for the ADU unless:
    • The ADU is within one-half mile of public transit.
    • The ADU is part of the existing primary residence or an existing accessory structure.
    • The ADU is in a historic district or has a historical designation.
    • The ADU is located in an area where on-street parking permits are required but not offered to the occupant.

3. Permitting Process for ADUs

Application Requirements

  • Initial Consultation: Homeowners should first consult with the San Diego Planning Department to determine the feasibility of constructing an ADU on their property.
  • Required Documents: Complete the ADU permit application, including site plans, floor plans, elevations, and other required documents.
  • Submission: Submit the completed application package to the Development Services Department for review.

Review Process

  • Ministerial Review: ADU applications are reviewed ministerially, meaning they do not require a public hearing. The review process typically takes 60 days.
  • Approval: If the application meets all zoning and building code requirements, it will be approved, and a building permit will be issued.

Fees and Waivers

  • Impact Fees:
    • ADUs less than 750 square feet are exempt from impact fees.
    • ADUs larger than 750 square feet are subject to proportional impact fees based on the size of the primary residence.
  • Utility Connection Fees: Separate utility connections may be required, and fees are assessed based on the size and impact of the ADU.

4. Additional Resources and Contact Information

City of San Diego Development Services Department

  • Phone: [Insert Phone Number]
  • Email: [Insert Email Address]
  • Address: [Insert Address]

Useful Links:

  • [San Diego Municipal Code Section on ADUs](link to the code)
  • [ADU Permit Application](link to the application)
  • [San Diego Planning Department](link to planning department)

    Accessory Dwelling Units (ADUs) Project Gallery