Permit history for unincorporated Los Angeles County

PermitProof searches unincorporated Los Angeles County’s permit records automatically: enter an address, and the search is queued and run against the jurisdiction’s official source, returning what it was able to read there with a link back to that source beside each record. Incorporated cities in the county are listed below with their own pages; where a city contracts building and safety to the county, its records are served through this same source.

Its connector passed a live acceptance test against the official source on Aug 28, 2026: a positive test against an address with a known permit history, and a negative test in which the portal correctly returned an explicit no-record result for a synthetic in-jurisdiction address. Automated coverage is a statement about the connector, not a guarantee that a portal publishes every permit ever issued.

The ledger behind these markers records passing acceptance tests dated between Jul 23, 2026 and Sep 2, 2026. A stored result of an identical search may be reused for up to 30 days, and a read that could not finish is labeled incomplete - never presented as a completed permit history, and never as "no permits found". Full reuse windows and how sources are chosen.

Where a search cannot establish something, the report says so in that row - it never fills a field in, and it never reports “no permits found” without certified evidence.