
Randal G. Winter Construction has been building custom homes in Altadena and Los Angeles County (unincorporated) for over 44+ years. Family-owned, design-build, one extraordinary home built around you.
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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 new home build 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 new home build moves forward without surprises.
When you hire us for your new home build 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.
Custom home projects in Altadena fail when design and construction don't talk to each other. 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 architects, engineers, and contractors. We handle design, planning, permitting, and construction for your Altadena custom home, fully integrated from the first meeting.
Everything is in writing: scope, schedule, and expectations. We don't start without your approval and we don't call the job done until you're satisfied.
Our team includes trade specialists in foundation, framing, roofing, plumbing, electrical, and finish carpentry. Every element of your custom home handled by someone who does it every day.
We don't cut corners. Randy has trained tradespeople and written on what good construction looks like, and that standard is built into every custom home we take on in Altadena.

Building a custom home is one of the most significant investments of your life. Here's how we make sure your Altadena home goes right, every time.
We meet to understand your vision, budget, and lot. You'll leave with an honest picture of what's possible and what it takes.
We develop plans with architectural support: layout, elevations, finishes. You approve every decision before construction begins.
Full permit package submitted and managed by our ICC-certified team. We handle the jurisdiction; you handle nothing.
Your project manager is on-site throughout. Trade specialists handle each system, all coordinated, all inspected.
We walk every inch with you before we call the job done. Your satisfaction is the finish line.
Every custom home in our portfolio was built around the family who lives in it. Here's a look at some of our completed custom home projects, including work in and around Altadena.



Tell us about your custom home project and we'll set up a no-pressure meeting to discuss your vision, timeline, and what a realistic path forward looks like. Most clients tell us the first conversation gave them more clarity than months of researching on their own.
We'll respond within 1 business day.