Downey · Garage conversion permits
Garage conversion permits in Downey
How to convert a garage conversion in Downey: permit pathway through Downey Community Development Department, drawings required, local watch-outs, and a free address-level wizard for your Downey lot.
Downey context
Downey's ADU ordinance is in Downey Municipal Code Title 9. The city aligns with the California state baseline. Plan check is typically 45-60 days.
- Permit agency
- Downey Community Development Department
- Median lot size
- 6,500 sqft
Drawings you'll need to submit
Convert your garage into an ADU in its current footprint. No replacement parking required. Often the cheapest LA ADU path.
- Site plan (parcel layout + setbacks)
- floor plan existing
- Proposed floor plan
- Elevations (each side)
PermitPathLA generates the site plan free from your Downey address. The other drawings come from your architect or plan firm — we list pre-approved options in the wizard.
Downey watch-outs for garage conversion
Local quirks
Downey Unified school fees apply
Downey Unified School District (DUSD) charges school facility fees on ADUs over 500 sqft.
Apollo site (now Columbia Memorial Space Center) is a real local landmark
If you're marketing a future ADU rental, the Apollo program history and the Columbia Memorial Space Center are major local identity anchors that draw families.
Run your Downey address through the wizard
We pull your parcel polygon from county GIS, apply Downey ordinance + state baseline rules, generate the site plan, and walk you through the Downey Community Development Department submittal. Free, no signup.