10/15/2026
How quickly do ADU projects actually get permitted in San Diego? ⏱️
We followed detached new-construction ADUs from the date they were submitted to see how many reached a permit over time, then compared the citywide results with identifiable SnapADU projects.
At 12 months after submission:
📋 43% of projects citywide had received a permit
✅ 92% of SnapADU projects had received a permit
By 36 months, 74% of projects citywide had been permitted, compared with 100% of SnapADU projects.
Getting through permitting efficiently starts well before plans are submitted. Understanding feasibility, utilities, site conditions, and jurisdiction requirements upfront can help reduce avoidable redesigns and corrections later in the process.
Read the full analysis of San Diego ADU permit and completion data HERE.
https://snapadu.com/adu-permitting-success-data-san-diego/
📊 Source: City of San Diego permit records. SnapADU comparison is based on a smaller sample of identifiable projects and should be viewed as directional.