Can you build an ADU in Hollywood Hills, Los Angeles?
Yes — about 94% of Hollywood Hills's roughly 10,911 analyzed single-family lots can add an ADU by-right. Most are zoned R1, which typically allows a detached ADU up to about 1,200 sq ft. These are zoning-only estimates; overlays like hillside, coastal, or historic can change the answer, so check your exact address for the rule that applies to your lot.
ADU eligibility in Hollywood Hills
Typical zoning in Hollywood Hills
The most common zones here, by number of analyzed lots. Your parcel’s zone sets which ADU rules apply.
| Zone | Lots | ADU outlook |
|---|---|---|
| R1 | 6,033 | Allowed |
| RE15 | 1,127 | Allowed |
| RE9 | 720 | Allowed |
| R2 | 504 | Allowed |
| RE11 | 463 | Allowed |
Eligibility is zoning-only (zoning-only (overlays excluded; see checker for per-lot verdict)). Ruleset la-2026.06. Neighborhood boundaries: Los Angeles Times / Mapping L.A. (CC BY 4.0).
Hollywood Hills ADU questions
In most of Hollywood Hills, yes. About 94% of its analyzed single-family lots can add an accessory dwelling unit by-right, most commonly on R1-zoned parcels. Your lot's exact answer depends on its zone, size, and any overlays — enter your address to see the rule that applies to you.
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