Local rules & permits
Like-for-like fire rebuilds get expedited LA County review, with a 10% (or 200 sq ft) size allowance
If your home was destroyed in the Palisades or Eaton fire, LA County gives like-for-like rebuilds — structures of the same size, in the same location, and for the same purpose — quicker permitting review than more complex projects. In the Palisades fire area, the replacement may still increase floor area, size, height, or building footprint by up to 10%; in the Eaton fire area, by up to 10% or 200 square feet, whichever is greater. Like-for-like structures are not held to current Zoning Code requirements, but must comply with current Building, Fire, and Health and Safety Code requirements.
LA County Recovers (County of Los Angeles)
Source: recovery.lacounty.gov