Hacienda Heights · Garage conversion permits
Garage conversion permits in Hacienda Heights
How to convert a garage conversion in Hacienda Heights: permit pathway through LA County Public Works (Building & Safety), drawings required, local watch-outs, and a free address-level wizard for your Hacienda Heights lot.
Hacienda Heights context
Hacienda Heights sits in unincorporated LA County despite being surrounded by the cities of Industry, La Puente, and Whittier. Permits run through LA County DPW Building & Safety at the Alhambra office via the EPIC-LA online portal — not through any city department. ADU rules follow the state baseline (Gov Code §65852.2) implemented through LA County Code Title 22.140. Northern hillside parcels (the Puente Hills foothills) face hillside grading + geotech review on top of standard ADU rules.
- Permit agency
- LA County Public Works (Building & Safety)
- Median lot size
- 7,800 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 Hacienda Heights address. The other drawings come from your architect or plan firm — we list pre-approved options in the wizard.
Hacienda Heights watch-outs for garage conversion
Overlays that hit a meaningful share of Hacienda Heights lots
Hillside Management Area (Puente Hills foothills)~25% of parcels
Northern + southern hillside parcels trigger geotech + grading-permit review.
Local quirks
Not a city — LA County DPW handles permits, not LADBS
Hacienda Heights residents sometimes confuse jurisdiction with neighboring Industry or Whittier. All Hacienda Heights permits run through LA County Public Works Building & Safety at the Alhambra office.
Hillside grading review on Puente Hills foothills
Lots along the Puente Hills foothills slope significantly and trigger LA County hillside grading review. Geotech reports typically required.
Run your Hacienda Heights address through the wizard
We pull your parcel polygon from county GIS, apply Hacienda Heights ordinance + state baseline rules, generate the site plan, and walk you through the LA County Public Works (Building & Safety) submittal. Free, no signup.