SDC-A: 3 bed, 1,200 sq ft gross pre-approved ADU by County of San Diego

A three-bedroom, one-story ADU of 1,200 sq ft (County's gross figure), published by the County of San Diego as a pre-approved plan.

On your property

Enter your address and we draw SDC-A to scale behind your home, 4 ft from the side and back, with the driveway kept open.

About this plan

County plan sheets: 2025 California codes, form PDS 670. Footprint read from County sheet A1, Nov 11, 2026. Read November 11, 2026.

The City of San Diego accepts the County's plans with a 30-day review and asks you to contact the plan's provider first.

The County's plan sets are about 85% complete: the owner adds the plot plan (PDS 090), the stormwater forms, Title 24 energy calculations, truss calculations and the fire district's approval. Printed on every sheet: "By using these standard plans, the user agrees to release the County of San Diego from any and all claims, liabilities, suits, and demands … arising out of the use of these construction documents."