ATTENTION BUILDING PERMIT APPLICANTS

State law requires that when property owners submit building plans to city and/or

county permitting agencies for approval, they must include a scaled copy of the floor

plans with exterior dimensions designated for the assessor’s use. This copy should be in

sufficient detail to allow the assessor to determine the square footage of the

building/structure and, in the case of residential buildings, the intended use of each

room.

• For new residential buildings and addition(s) to existing residential buildings (one‐,

two‐ family dwellings), one additional copy of the architectural set of plans

complying with the above requirements is required for the Los Angeles County

Assessor’s Office.

• For new Apartment, Commercial buildings and addition(s) to existing Apartment and

Commercial buildings, one additional copy of complete set of plans (architectural &

structural) is required for the Los Angeles County Assessor’s Office.

If square footage is altered prior to, or during, building construction, an updated scaled

copy of the floor plan is required that specifically identifies the alteration from the

previously filed copy.

As provided in California Revenue and Taxation code section 408, plans submitted to the

assessor are not public documents and shall not be open to public inspection.

If you have any questions, please contact the Los Angeles County Assessor’s Public

Service Desk at (888) 807-2111.