Lancaster, CA Environmental Rules: Flood Zones (2026)

The city adopted the Federal Insurance Administration's Flood Insurance Study dated July 6, 1981, and the Flood Insurance Rate Map (FIRM) dated January 6, 1982, along with all later amendments, as the official basis for identifying areas of special flood hazard within city limits (Sec. B). Those study and map documents are kept on file at 44933 North Fern Avenue in Lancaster. C requires full compliance with the article before any structure or land is constructed, located, extended, converted or altered, and it expressly makes violation of the article, including breach of any condition or safeguard attached to an approval, a misdemeanor.

D provides that where this flood article conflicts with another ordinance, easement, covenant or deed restriction, whichever standard is more restrictive controls. F bars new fill, construction or other development unless a registered engineer or architect certifies the work will not raise flood levels during a base flood. 200, but the code stresses variances are rare because of the long-term risk to life, property and flood-insurance costs that undersized or unelevated construction creates.