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Cambria Home Additions & ADU: The Santa Clarita Owner’s Guide
Cambria home additions and ADUs in Santa Clarita typically run $45,000 to $130,000 installed, depending on square footage, foundation work, and how much of the existing structure ties into the new space. We match Cambria quartz countertops, backsplashes, and surface materials to the addition during the build, so the new wing reads like it was always part of the house. Most owners call us when they realize their existing floor plan has stopped working – a growing family, an aging parent moving in, or a home office that can’t stay in the dining room anymore.
What you’re really looking for is a contractor who can sequence a Cambria-heavy addition without turning your kitchen into a construction zone for six months. That means protecting the Cambria surfaces already in the house before the first hammer swing, and coordinating the new Cambria install so it arrives when the walls are closed and the dust has settled. Graham Stein walks every Santa Clarita addition through that sequence in writing before work starts, so you know exactly which weeks the house will be loud, which weeks it’ll be dusty, and when the Cambria template appointment lands.
Which Cambria Models This Applies To
Cambria doesn’t make “addition parts” in the mechanical sense, but the product line matters more than most homeowners realize when you’re planning an ADU or home addition in Santa Clarita. Cambria’s design palette splits across three collections – Classic, Marble, and Design – and each slab runs 132″ x 65.5″ with a 1cm, 2cm, or 3cm thickness option. For a kitchen island in a new addition, you want 3cm stock; for a bathroom vanity in an ADU, 2cm often works and saves real money.
The compatibility gotcha few people catch: Cambria stamps its certification on the back of each slab, and that stamp includes the lot number. If you’re adding on to a kitchen that got Cambria five years ago and want the new island to match, you need the lot number from the original install. Cambria’s color consistency is strong, but not absolute across manufacturing runs. We pull that number during the initial walkthrough and verify color match before ordering. Elmstead Remodeling Santa Clarita is an independent contractor, not affiliated with Cambria, but we work with their Santa Clarita distributors directly and keep the sample chips in the truck.
Styles & brands we work with
Signs Your Current Floor Plan Has Failed You
Most Cambria home addition calls start with one of these, and they all point to the same conclusion: the house stopped fitting the family.
- The kitchen island has become a traffic jam. Two people can’t pass each other between the Cambria island and the fridge. You’re not having countertop problems – you’re having a layout problem that an addition solves by creating a real work triangle.
- The “guest room” is actually a storage unit. When every holiday visit means moving boxes out of a bedroom, an ADU with its own bathroom and a Cambria-topped kitchenette changes the dynamic. Grandma gets privacy; you get your spare room back.
- You’re working from the dining table and hiding it on Zoom calls. A 150-square-foot home office addition with a Cambria desktop surface beats another year of fake backgrounds.
- The kids share a bathroom and the morning routine starts at 5:45. A primary suite addition off the back of the house moves you out of the hallway bathroom and frees up the existing bath for the kids. New vanity tops in Cambria make the old bathroom feel intentional again.
- You’ve priced moving and it made you dizzy. A $120,000 addition in Santa Clarita frequently beats selling, paying commissions, and buying at current rates. The math is the math.
See the difference
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AfterReplacement Cost & What’s Included
In Santa Clarita, a home addition lands between $45,000 and $130,000. A compact home office or bump-out addition starts near the bottom of that range. A full primary suite with a bath and walk-in closet sits in the middle. A complete ADU – foundation, framing, plumbing, electrical, Cambria surfaces, and finishes – runs $90,000 to $220,000 as a separate build.
The spread comes down to three things: whether you need new foundation work or can tie into the existing slab, how much plumbing moves, and what grade of Cambria you spec. The written price you get from us before work starts includes the Cambria material and template, the framing, the drywall, the flooring, the paint, the shoe covers, the drop cloths, and the photo of the clean-up before the crew leaves. No change orders because we measured wrong. No surprise line item for “debris removal.” The price on the paper is the price on the invoice – we put that in writing before the first board goes down.
DIY or Call Us?
You can absolutely help with the parts of this that don’t require a building permit in Santa Clarita. Pulling the permit application together, marking out where you think the addition should sit in the yard, and cutting back the shrubs that are in the way – all fair game. What you should not do is look at a wall, tap it with a hammer, and decide it’s non-load-bearing because it sounded hollow. That’s how ceilings end up on the floor.
Cambria itself is a fabrication-heavy product. The slabs are heavy, brittle at the edges, and the seams need a trained eye to keep them nearly invisible. We’ve seen a homeowner with good intentions create a seam line that looked like a fault map. This is the kind of project where the savings from DIY disappear fast in rework. If you’re in Santa Clarita and want to talk through whether an addition or ADU pencils out for your lot, call (661) 542-4056. We’ll bring the tape measure and the Cambria sample chips.
FAQs
A typical addition runs 3 to 5 months from first permit submittal to final walkthrough, with Santa Clarita’s plan review and inspection schedule setting part of that pace. Smaller bump-outs can finish in 10 to 12 weeks; full ADUs run 5 to 7 months. We give you a week-by-week sequence in writing before we start so you can plan around school schedules and nap times.
Yes, in most cases. We pull the lot number from the back of your existing slab and order from the same Cambria fabricator when possible. If the lot is no longer available, we bring sample chips and find the closest match under your lighting conditions before you commit. Call (661) 542-4056 and we’ll check your slab.
We pull every permit, schedule every inspection, and walk the job through final sign-off. You never stand at the counter at City Hall wondering what form you need next. The permitting cost is baked into the written price before work starts.
Absolutely. Many Santa Clarita families spec Cambria for the ADU kitchenette and bathroom vanity so the rental or in-law unit matches the main house’s finish level. It also carries better for resale. We’ll quote it both ways so you can see the dollar difference and decide.
Written by Graham Stein, Owner, Elmstead Remodeling Santa Clarita at Elmstead Remodeling Santa Clarita, serving Santa Clarita and nearby areas.
