Sierra Madre issues its own permits: siding and stucco work goes through the City of Sierra Madre Building and Safety Division at City Hall, 232 W. Sierra Madre Boulevard, with applications through the City's Accela portal and a separate permit for each trade, not LADBS. A like-for-like re-side or re-stucco is a simpler permit than a conversion or a wall that needs framing repair, which goes to plan check.
The Canyon and the foothill streets are in a Very High Fire Hazard Severity Zone and the City's hillside management zone; the Canyon has its own zoning, and the City's design review and historic preservation rules apply on the older blocks.
We prepare whichever review comes first, submit the permit, schedule the inspections, meet the inspector at the flashing stage and at the final, and close the permit before the final payment. You keep the closed-permit record.
Sources, checked October 27, 2026: City of Sierra Madre, Building and Safety; City of Sierra Madre, Building and Safety permits (Accela, separate permit per trade); California Building Code Chapter 7A and the Office of the State Fire Marshal WUI product listings.