Can you build an ADU in Windsor Square, Los Angeles?

Yes — about 94% of Windsor Square's roughly 1,723 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.

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ADU eligibility in Windsor Square

Lots analyzed
1,723
Likely eligible
94%
Typical max size
1,200 sq ft
Median lot
7,001 sq ft

Typical zoning in Windsor Square

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

ZoneLotsADU outlook
R1869Allowed
RE15217Allowed
RE9188Allowed
RE11145Allowed
R3127Allowed

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).

Windsor Square ADU questions

In most of Windsor Square, 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.

ADUs in other LA neighborhoods

WinnetkaWoodland HillsAdams-NormandieArletaArlington HeightsAtwater VillageBaldwin Hills/CrenshawBel-Air

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