Rosemead · ADU permits
ADU permits in Rosemead
How to build a ADU in Rosemead: permit pathway through Rosemead Community Development Department, drawings required, local watch-outs, and a free address-level wizard for your Rosemead lot.
Rosemead context
Rosemead's ADU ordinance is in Rosemead Municipal Code Title 17. The city aligns with the California state baseline. Plan check is typically 45-60 days.
- Permit agency
- Rosemead Community Development Department
- Median lot size
- 5,500 sqft
- ADU permits issued (2025)
- 136Source: Cal HCD Annual Progress Report 2025 (Table A2, BP_ISSUE_DT1 set)
Rosemead ADU ordinance
Verified against Rosemead Community Development Department's published ordinance on 2026-05-12. State law (CA Government Code §65852.2) overrides any locally-stricter rule.
Max detached ADU size
1,200 sqft (state default)
Max ADU height
16 ft / 18 ft with second-story setbacks
Setbacks
4 ft side / 4 ft rear (state minimum)
Local processing time
45-60 days for standard ADUs
Pre-approved standard plans
None city-specific
Drawings you'll need to submit
Type your address. See if you can build an ADU, what kind, and exactly how to permit it.
- Site plan (parcel layout + setbacks)
- Proposed floor plan
- Elevations (each side)
- Title 24 CF1R energy compliance
PermitPathLA generates the site plan free from your Rosemead address. The other drawings come from your architect or plan firm — we list pre-approved options in the wizard.
Rosemead watch-outs for ADU
Overlays that hit a meaningful share of Rosemead lots
Edison electrical transmission corridor~6% of parcels
Parcels adjacent to the Southern California Edison transmission corridor face setback-from-easement rules.
Local quirks
Schools split between Rosemead SD + Garvey SD + El Monte Union HSD
Rosemead is split between three school districts. Verify which district covers your parcel for school facility fees.
Rosemead Boulevard + Valley Boulevard parking exemption likely applies
Parcels within 0.5 mi of the major commercial corridors qualify for the state ADU parking exemption.
Run your Rosemead address through the wizard
We pull your parcel polygon from county GIS, apply Rosemead ordinance + state baseline rules, generate the site plan, and walk you through the Rosemead Community Development Department submittal. Free, no signup.