San Diego ADU Guide
ADU Guides for San Diego Homeowners
Learn how much ADUs really cost, what the permit path looks like, and how to compare builders before you commit to a six-figure project.
San Diego ADU Cost Guide
CostsBallpark ranges for garage conversions, prefab ADUs, and custom detached ADUs in San Diego.
Read guide →Prefab vs. Custom ADUs in San Diego
DesignCompare prefab and custom ADUs—timelines, flexibility, and which might fit your property.
Read guide →San Diego ADU Permits & Zoning Checklist
PermitsHigh-level steps to confirm your property is eligible and understand the permit path.
Read guide →How to Choose an ADU Builder in San Diego
BuildersWhat to look for in an ADU builder—experience, scope, pricing, and red flags to avoid.
Read guide →Ready to move from research to planning? Start with the ADU cost calculator or browse ADU builders in San Diego.