
We design and build ADUs across Altadena and Los Angeles County (unincorporated), managing every step from permits to final inspection. Rental income, multigenerational living, or a home office, built right.
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We know Altadena block by block. From West Altadena, East Altadena, Meadows, Country Club area, Janes Village, and everywhere in between, we've worked on homes across Los Angeles County (unincorporated) for over 44+ years. Altadena is unincorporated LA County, and that one fact changes the entire permit process. Fire rebuilds here run through LA County Building & Safety and the Altadena One-Stop Center, not a city hall. We know the track, the fire-hardening code, and the like-for-like path back home.
Permitting in Altadena has its own personality, and it directly affects your accessory dwelling units (adu) project. CRITICAL: Altadena is UNINCORPORATED Los Angeles County, not a city. All building permits are issued by the LA County Department of Public Works Building & Safety (not LADBS, not Pasadena), and land-use approvals come from LA County Regional Planning. Fire rebuilds route through the Altadena One-Stop Permit Center and the EPIC-LA portal. Non-like-for-like rebuilds are subject to the Altadena Community Standards District (CSD). The January 2025 Eaton Fire destroyed or damaged over 6,000 structures in Altadena, and rebuilding is ongoing and complex. Altadena sits in a Wildland-Urban Interface (WUI) zone, triggering Chapter 7A fire-hardening requirements. Like-for-like rebuilds are the fastest path and can modify up to 10% or 200 sq ft; larger redesigns face longer timelines under current zoning. Many upper-Altadena lots are on septic or private water utilities. A 44-year licensed GC who understands the LA County (not city) permit track is exactly what this rebuild market needs. Our ICC-certified team handles every layer of the approval process so your accessory dwelling units (adu) moves forward without surprises.
When you hire us for your accessory dwelling units (adu) in Altadena, you're getting a contractor who understands the difference between a Craftsman or mid-century home and a tract build. We spec materials and methods that fit the home and the neighborhood, not a one-size-fits-all approach.
ADU projects in Altadena go wrong when the contractor doesn't know the local rules. We handle everything in-house: design, permitting, construction, and finish. You have one point of contact from start to final walkthrough.
No coordinating between separate designers, engineers, and contractors. We handle design, planning, permitting, and construction for your Altadena ADU, fully integrated from the first meeting.
State law has streamlined ADU approval, but local rules still vary. CRITICAL: Altadena is UNINCORPORATED Los Angeles County, not a city We'll walk you through what's allowed on your specific Altadena lot.
Written agreements include start and completion expectations. We set realistic schedules and we stick to them, because your time matters.
Our team includes trade specialists in framing, foundation, plumbing, electrical, and finish carpentry. Every element of your ADU handled by someone who does it every day.

We've built ADUs across Los Angeles County (unincorporated) for years. Here's the process we've refined to make your Altadena ADU project as smooth as possible.
We meet at your property to evaluate the lot, discuss your ADU goals, and explain California ADU rules and local permitting requirements.
We develop plans and a written estimate. You see the real numbers and approve every design decision before construction begins.
We handle all ADU permit applications, including local jurisdiction and coastal-zone requirements where applicable. No paperwork headaches for you.
Our trade specialists build your ADU with precision, from foundation to finish. Regular updates and direct access throughout.
We walk the completed ADU with you and ensure every detail meets your expectations.
Every ADU in our portfolio was designed for how the homeowner plans to use it, rental income, family, or office. Here's a look at some of our completed ADU projects, including work in and around Altadena.



Tell us about your ADU goals and we'll reach out to schedule a no-pressure consultation at your property in Altadena. We'll evaluate the lot, explain California ADU rules, and discuss what's feasible. No cost, no commitment.
We'll respond within 1 business day.