Can you build an ADU in Chatsworth, Los Angeles?

Yes — about 87% of Chatsworth's roughly 12,610 analyzed single-family lots can add an ADU by-right. Most are zoned RS, 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.

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ADU eligibility in Chatsworth

Lots analyzed
12,610
Likely eligible
87%
Typical max size
1,200 sq ft
Median lot
11,000 sq ft

Typical zoning in Chatsworth

The most common zones here, by number of analyzed lots. Your parcel’s zone sets which ADU rules apply.

ZoneLotsADU outlook
RS2,452Allowed
RA2,404Allowed
RE111,893Allowed
RE1,451Allowed
R1833Allowed

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).

Chatsworth ADU questions

In most of Chatsworth, yes. About 87% of its analyzed single-family lots can add an accessory dwelling unit by-right, most commonly on RS-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.

ADUs in other LA neighborhoods

Chesterfield SquareCheviot HillsChinatownCypress ParkDel ReyDowntownEagle RockEast Hollywood

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