Top 10 Companies Providing ADU Permits in San Diego

Why Get an ADU Permit in San Diego?
Every ADU project in California, including garage conversions and backyard ADUs, requires an official permit. The permit ensures that your ADU complies with building codes, zoning regulations, and safety standards. Securing an ADU permit in California is essential for legal recognition, resale value, and the ability to rent out your ADU.
Additionally, obtaining a permit ensures that your ADU is inspected properly, guaranteeing that it’s safe and up to code. This process is especially critical for garage ADU conversions or new backyard homes in San Diego.
Top 10 Companies Providing ADU Permits in San Diego
1) Fortune ADU
2) Next Gen ADU
3) Pacific Green Homes
4) Revere Construction
5) San Diego ADU Builders
6) California Construction Center
7) Blue Jay Construction
8) Nook Builders
9) Garrison ADU
Garrison ADU specializes in both backyard ADUs and garage ADU conversions in California. With a deep understanding of local building codes and zoning regulations, they ensure that every project is fully compliant with all necessary ADU permits.
10) UBuildIt
UBuildIt is a reputable name in the ADU construction field. With their expertise, they guide clients through every aspect of the ADU permit process, ensuring that every project meets the highest standards. From garage conversions to larger backyard homes, UBuildIt ensures your ADU project is legally compliant and completed with precision., ensuring that every project meets the highest standards. From garage conversions to larger backyard homes, UBuildIt ensures your ADU project is legally compliant and completed with precision. to larger backyard homes, UBuildIt ensures your ADU project is legally compliant and completed with precision.
The ADU Permit Process in San Diego
1. Check Property Zoning and Eligibility
2. Choose the Type of ADU You Want to Build
Decide between a Detached ADU, Attached ADU, Garage Conversion, or Junior ADU (JADU). Each has specific ADU design and permit requirements in San Diego.
3. Prepare ADU Plans and Required Documents
4. Submit Your Application Online
5. Respond to Plan Reviews and Get Permit Approval
6. Complete Construction and Final Inspection
Cost of Obtaining an ADU Permit in San Diego
Fee Type | Estimated Cost | Notes |
Plan Check Fees | $800 – $2,500 | Waived through January 2024; varies based on ADU size and complexity. |
Building Permit Fees | $2,500 – $5,000+ | Required for construction approval; higher for larger or detached units. |
Impact Fees | $2,000 – $15,000+ | Typically waived for ADUs under 750 sq ft; may apply to larger units. |
Utility Connection Fees | $2,000 – $15,000 | Includes water, sewer, and electrical connections; higher for detached ADUs. |
Survey Fees | $2,500+ | Necessary for property boundary verification and compliance. |
School Fees | $2,000 – $5,000 | Applicable to ADUs over 500 sq ft; calculated per square foot. |
Sewer/Water Capacity Fees | $3,600 | For ADUs; 50% discount from standard rate. |
Storm Water Inspections | $1,010.70 | For high-priority projects; up to four inspections. |