Santa Monica is one of the most desirable — and most regulated — cities in Los Angeles County for ADU construction and home remodeling. Unlike the San Fernando Valley neighborhoods served by LADBS, Santa Monica operates its own Building & Safety Division under the City’s Community Development Department. ADU projects here are governed by the Santa Monica Municipal Code (SMMC § 9.31.025), and properties located south of the I-10 freeway — which includes most of the city — fall within the California Coastal Zone, requiring a Coastal Development Permit in addition to standard building permits. Knowing this before you start is the difference between a realistic timeline and a frustrating surprise six weeks into plan check.
Beyond permitting, Santa Monica enforces design conformity standards that most LA jurisdictions don’t: new ADUs must match the primary dwelling in exterior color, materials, roof pitch, roofline character, and window and door style. That’s not a burden — it’s an opportunity to build something that genuinely belongs on your property and enhances its curb appeal. We review your home’s architectural character at the site visit and carry those details through the design and permit drawings so the City’s design review goes smoothly.
Santa Monica’s real estate market is among the strongest in Southern California, with home values and rental rates driven by coastal access, the Silicon Beach tech corridor, and consistent demand from high-income residents. A permitted ADU here is not just additional square footage — it’s a high-yield asset in one of LA’s most competitive rental markets. Kobzev Pro manages every stage of your project in-house: design, City permits, and full construction, with a fixed price agreed before any work begins.