Imperial Beach ADU Regulations and Zoning

ADU SIZE & BUILDING CONSTRAINTS

What size ADU can I build in Imperial Beach?

Imperial Beach permits the construction of:

• Detached ADUs: At least 850 square feet for units with one or fewer bedrooms and 1,000 square feet for units with two or more bedrooms.
• Detached ADUs (with no off-street parking removed): Up to 1,200 square feet if one additional off-street parking space is provided.

What is the setback requirement for an ADU in Imperial Beach?

• Height of 16 feet or less: Side and rear setbacks must be at least 4 feet or consistent with the underlying zone’s requirements.
• Height over 16 feet: Portions of the building exceeding 16 feet in height must adhere to the setback requirements of the underlying zone.

How many ADUs can you build on your property in Imperial Beach?

• Single-family residential lots: one ADU (attached or detached) and one Junior ADU (JADU). JADUs must be converted from existing space in the primary residence and have an owner-occupancy requirement.
• Multifamily properties:
  1. Up to two detached ADUs, and
  2. Conversion of non-living space (e.g., basements, storage rooms) to create at least one or up to 25% of the existing units as internal ADUs.

How big can an attached ADU be in Imperial Beach?

Maximum size: 50% of the primary dwelling’s floor area, capped at 1,200 square feet.
 

ADDITIONAL ADU GUIDELINES

Can you build a 2-story ADU in Imperial Beach?

Yes, two-story ADUs are allowed, but they must be built above an existing garage.
 

Can you convert a garage into an ADU or add an ADU on top of a garage?

Yes, garage conversions or additions are permitted, subject to local regulations.
 

What are the parking requirements for ADUs in Imperial Beach?

A parking space is not required for ADUs in the following cases:
 

• Within a half-mile walking distance of public transit (e.g., bus stops).
• Located in a designated historic district.
• Converted from the existing space of the primary residence or an accessory structure.

Permitting Process In Imperial Beach

The permitting process for an ADU in Imperial Beach typically takes 2 to 6 months, depending on project complexity and city workload.

Key Steps:
 

1. Pre-Application Research: Confirm zoning and building compliance.
2. Application Submission: Submit complete plans and documents, including site plans and structural designs.
3. Review Period: The planning and building departments review the application for compliance.
4. Revisions (if necessary): Address any feedback or requested changes.
5. Permit Issuance: Obtain permits once all requirements are met.

To streamline the process, ensure all documentation is accurate and consider working with professionals familiar with local ADU regulations.
 

Conclusion

Imperial Beach offers a fantastic opportunity for homeowners to expand their living space or generate income with ADUs while maintaining the charm of its coastal community. By understanding and adhering to the city’s regulations, your ADU project can enhance both your property and the neighborhood. For a seamless process, consult with experts who can guide you through Imperial Beach’s ADU requirements.