A Benson company - serving Santa Clarita, CA
A quiet residential street with a new ADU behind one of the homes
Stevenson Ranch, CA

ADU Company in Stevenson Ranch - Plans, Permits & Build, One Fixed Price

We handle the design, the engineering, and the city permit, then build it. One contract, one crew, one accountable point of contact. Free feasibility check on your lot before you commit.

✓ Licensed & Insured ✓ Written quotes ✓ Permits handled
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Free Estimate on SiteCalls Answered by a Live Person, 24/7Background-Checked TechniciansA Local Team in Santa Clarita
🛡 Licensed & Insured 📝 Written Fixed-Price Quotes 💲 No Change Orders · Free Estimates
A small deck outside a new ADU
The living room inside a new ADU
A new two-story ADU over a garage
A compact kitchen inside a new ADU
A new modern ADU with wood cladding
A second-story addition with a balcony, matched to the original house
A single-story rear room addition with tall windows and a new patio
A new sunroom addition with three walls of windows
Every project starts with

A free site visit, a check of what your lot allows and a written, line-item price.

Get your free estimate

ADU Company in Stevenson Ranch, CA

Adding an ADU in Stevenson Ranch means working with HOAs that review nearly every exterior choice, lots big enough for a detached unit plus a pool and still room to breathe, and summers that punish a poorly insulated build. We’re Benson ADU Santa Clarita, and we handle ADUs, home additions, and room additions across Stevenson Ranch with a written price before any work starts and a 365-Day Done Right Promise stamped on every project. Call (661) 219-7906 and you’ll get a real person, a straight answer, and a plan you can actually hold us to.

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Why Stevenson Ranch Homes Are Different

The bathroom inside a new ADU

Stevenson Ranch was built out mostly between the late 1980s and the 2010s, and the housing stock reflects that era: large Mediterranean and Spanish-inspired homes with stucco exteriors, tile roofs, and lots that routinely run 7,000 square feet or more. That last part matters a lot for ADUs. A detached unit doesn’t require shoehorning a second story over an existing garage when the property has room for a standalone structure along a rear setback line.

The HOA layer is the other defining reality. Stevenson Ranch is governed by multiple homeowners associations that review exterior elevations, materials, rooflines, and color palettes. Nothing gets built without their sign-off, and the smartest move is submitting a design that matches the primary home’s architecture from the first plan set rather than negotiating after the fact. We factor HOA review into the schedule up front, in writing, so the timeline doesn’t quietly slip.

The climate pushes the build in a specific direction too. Hot, dry summers with stretches over 100°F mean cooling loads drive the design. Mild winters are easy, but Santa Ana wind events make fire-resistant cladding and ember-resistant vents worth planning for at framing, not as a retrofit thought later. Plenty of Stevenson Ranch properties also have secondary rear alley access, which can simplify utility trenching and keep a construction crew off the main driveway for weeks at a time.

Our Main Stevenson Ranch Services

Stevenson Ranch homeowners call us most about two things: building a new ADU and expanding the footprint of the home they already love. Here’s how each one works here.

ADU Builders in Stevenson Ranch

Building an ADU in Stevenson Ranch starts with a hard look at your lot’s setbacks, your HOA’s design guidelines, and whether a prefab or a site-built unit makes more sense for your property. We’re authorized to build with brands like Dvele, Boxabl, and Mighty Buildings, so you’re not stuck with a single take-it-or-leave-it product. Many Stevenson Ranch lots have rear alley access, which can make a detached ADU’s utility hookup cleaner and less disruptive. We handle the HOA submission package, the permit set, and the build, with a written price before any work begins. ADU Builders in Stevenson Ranch

ADU Builders in Stevenson Ranch

Home Addition Contractor in Stevenson Ranch

A home addition in Stevenson Ranch usually means expanding out rather than up, taking advantage of a generous side or rear yard while keeping the exterior consistent with the neighborhood’s Spanish and Mediterranean architecture. The stucco match, the roofline tie-in, and the window proportions all matter to an HOA reviewer, so we spec those decisions early. Fire-resistant materials are standard in our Stevenson Ranch additions, not an upcharge, because the Santa Ana wind season punishes corners that get cut. Home Addition Contractor in Stevenson Ranch

Home Addition Contractor in Stevenson Ranch

Room Addition Contractor in Stevenson Ranch

A room addition in Stevenson Ranch is usually a single-purpose build: a home office, a guest suite, a playroom, or a first-floor bedroom. The work moves faster than a full addition, but the same HOA rules apply to exterior changes, and we handle that paperwork as part of the job. Our crews are background-checked and uniformed, so you always know who’s walking onto your property, and every project gets a written guarantee and a free second visit if any covered repair fails. Room Addition Contractor in Stevenson Ranch

Room Addition Contractor in Stevenson Ranch
Need help today?Fast, friendly service and a no-obligation free estimate.

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What happens when you call

  1. 1
    A real person answersNo phone trees - you reach a local pro.
  2. 2
    You get an upfront price rangeHonest numbers before anyone is dispatched.
  3. 3
    A background-checked tech heads outLicensed & insured, dispatched right away.
  4. 4
    You approve before work beginsNothing starts until you say go.

Brands We Service in Stevenson Ranch

We build with and service prefab ADU systems from Dvele, Cover, and Boxabl, plus James Hardie cladding for site-built additions. Parts and replacement panels are ordered through our supply network and scheduled against your project timeline, not left to sit in a warehouse. See the full lineup on our brands page.

Pricing for ADU Company in Stevenson Ranch, CA

Service Typical range in Stevenson Ranch
Detached ADU (site-built) $180,000 – $280,000
Detached ADU (prefab, e.g. Dvele, Boxabl) $150,000 – $250,000
Garage conversion ADU $90,000 – $150,000
Attached addition ADU $160,000 – $240,000
Junior ADU (JADU) $60,000 – $110,000
Home addition (single room) $75,000 – $130,000
Home addition (multi-room) $140,000 – $250,000
Room addition (office or bedroom) $65,000 – $110,000
Room addition (guest suite with bath) $100,000 – $160,000

In Stevenson Ranch, the two things that push a project toward the top of these ranges are HOA-mandated exterior upgrades and site conditions like slope or utility relocation. A written price before any work starts means the number we agree on is the number you pay, no scope creep billed after the fact.

Neighborhoods We Serve in Stevenson Ranch

We work across the whole Stevenson Ranch area, including the communities that make up the master-planned neighborhoods on both sides of Stevenson Ranch Parkway. Typical response for an estimate visit in the area runs a few business days, depending on crew scheduling.

  • Southern Oaks
  • The Summit
  • Stevenson Ranch neighborhoods north of Pico Canyon Road
  • Communities along Faulkner Drive
  • Areas near Stevenson Ranch Elementary

Service Area – Cities Near Stevenson Ranch

Beyond Stevenson Ranch, our crews cover the surrounding Santa Clarita Valley and the northwest San Fernando Valley. We serve Santa Clarita, CA, Castaic, CA, Porter Ranch, CA, and Chatsworth, CA, with the same written-price guarantee and 365-Day Done Right Promise on every project.

Serving Stevenson Ranch, CA - Our Local Coverage Area

We’re based in the Stevenson Ranch area and know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.

FAQs About ADU Company in Stevenson Ranch

The bedroom inside a new ADU

Ready to get started? Free estimates · Free in-home estimates response in Stevenson Ranch
Call (661) 219-7906

What happens when you call

  1. 1
    A real person answersNo phone trees - talk to a local adu pro.
  2. 2
    You get an upfront price rangeHonest numbers before anyone is dispatched. No surprises.
  3. 3
    We come out and measureLicensed & insured, at a time that suits you - the visit and the quote are both free.
  4. 4
    You get the price in writingLine-itemed, yours to keep, and nothing starts until you say go.

What Stevenson Ranch Customers Say

★★★★★ 4.9 from 7+ reviews

"Home addition blends in with the original house."

- Vic S.

"Fixed quote and clear change orders approved by text."

- Trina M.

"Photos of each milestone, which I loved. Slab, framing, roof dry-in, each one came with a few pictures by text."

- Gwen D.

How It Works in Stevenson Ranch

Getting your adu handled is simple and fast.

1

Call or Request a Free Estimate

Tell us about your adu needs and we provide an upfront, transparent quote - no obligation, no hidden fees.

2

Licensed Technician Dispatched

A background-checked, certified technician arrives in Stevenson Ranch - typically within 30-60 minutes, with parts stocked on the truck.

3

Problem Solved, Guaranteed

We complete the job to your full satisfaction, backed by our warranty and 100% satisfaction guarantee.

More ADU services in Stevenson Ranch

Every build below starts the same way: a free site visit and a written price.

Getting started with Benson in Santa Clarita

Every project starts with a conversation and a written price. Here is how to take the first step.

A project lead measuring a backyard ADU site with the homeowner

Free site visit

A project lead walks the lot with you, checks what it allows and hands you a written, line-item price. No obligation.

Book a site visit
A building crew carrying lumber to a backyard ADU site

Your Santa Clarita team

A local crew that works across Santa Clarita and the towns around it, to the same written standard as every Benson location.

Areas we serve
A worker protecting the lawn before an ADU build starts

Read our written promise

What we promise on every job, written down, with the terms spelled out before any work starts.

Our promise

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