A Benson company - serving Santa Clarita, CA
A new modern detached ADU in a backyard
ADU Builders · Stevenson Ranch, CA

ADU Builders 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.

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Free Estimate on SiteCalls Answered by a Live Person, 24/7Background-Checked TechniciansA Local Team in Santa Clarita
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
The bedroom inside a new ADU
A second-story addition that matches the existing roofline
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
Every project starts with

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

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Fast, Reliable ADU Builders Across Stevenson Ranch

Building an ADU in Stevenson Ranch means working with a contractor who understands the HOA approval gauntlet before a single wall goes up. Most Stevenson Ranch communities, especially the 1990s-era developments off Stevenson Ranch Parkway, require your ADU’s roof pitch, stucco texture, and paint palette to match the primary residence within 90% visual similarity. That’s not a county rule. That’s a Stevenson Ranch Residential Association rule, and it changes how the whole project gets sequenced. Call (661) 219-7906 and we’ll walk you through what your specific tract actually requires.

Two professional ADU builders lifting and installing a wooden wall frame in Stevenson Ranch, CA

Call (661) 219-7906

Our crews work Stevenson Ranch parcels regularly. We know the rear-alley access points off Hemingway Avenue, the oversized lots near Southern Oaks, and the stucco-heavy Mediterranean profiles that dominate Pico Canyon. When you call, you get a written price before any work starts, a live person on the phone, and a plan that accounts for HOA review so your project does not stall out half-framed.

Why Benson ADU Santa Clarita Is Stevenson Ranch’s Preferred ADU Builders Company

A small deck outside a new ADU

Stevenson Ranch homeowners don’t want a contractor who treats the HOA as an afterthought. They want someone who files the architectural review packet correctly the first time. Our team, led by Troy Eastman, has built enough ADUs in this specific community to know which color palette chips get approved and which trigger a second review cycle. That local knowledge saves Stevenson Ranch clients three to six weeks on average.

Every person who walks onto a Stevenson Ranch property is background-checked and uniformed. You’ll see the same faces from the first consultation through final inspection. We answer the phone around the clock, and our written pricing means the number we quote before HOA review is the number you pay after it.

We’re part of the Relay Home Co. family, founded in 2006. Each location is independently owned and operated, and this one serves Stevenson Ranch with the full ADU Builders toolkit: prefab options from brands homeowners can research independently, plus site-built construction when the HOA’s architectural guidelines demand custom matching.

JADU in Stevenson Ranch

A JADU in Stevenson Ranch is typically the fastest path to a legal rental unit because it converts existing space inside your home instead of adding a new structure. Think garage conversions, finished basements, or a spare bedroom with a separate entrance. On a large Stevenson Ranch lot with an existing three-car garage, a JADU usually runs $85,000 to $140,000 depending on plumbing scope and whether the HOA requires exterior door changes to match the main house’s finish.

Garage Conversions With HOA Approval

Stevenson Ranch HOAs often care less about interior JADU work than detached structures, but that changes the moment you add an exterior door or modify a garage-facing wall. We file the architectural review application with the correct paint chips and door hardware specs before demo starts. The kitchenette allowance under California JADU law means a full second kitchen is not required, which keeps costs lower.

Interior JADUs With Separate Entrances

If your Stevenson Ranch home already has a side door or rear entrance facing an alley, the JADU path gets simpler. We add a small efficiency kitchen, a locking entry, and the required smoke and CO detection without touching the HOA’s exterior appearance rules. Expect $60,000 to $95,000 on homes where plumbing stacks are nearby and no structural changes are needed.

ADU Plans in Stevenson Ranch

ADU Plans in Stevenson Ranch mean more than a floor layout. They mean a submittal packet the Stevenson Ranch Residential Association will actually accept: roof pitch drawings matching your primary residence, stucco color chips pulled from the approved palette, and elevation views showing the 90% visual similarity requirement. A full plan set for a detached 1,200-square-foot ADU in Stevenson Ranch typically runs $8,000 to $15,000 depending on the tract’s specific architectural constraints.

HOA-Ready Plan Sets

We draft plans with the HOA review in mind from day one. That means Spanish tile roof details where the primary house has Spanish tile, Santa Barbara stucco finish specs, and window trim styles that match the existing elevation. The plan set includes everything both the HOA and Los Angeles County need to see: site plan with rear alley access width, floor plan, elevations, and utility routing.

Two professional contractors installing a door frame on a modern ADU in Stevenson Ranch, CA

Sequencing Design With Permits

Here’s where our process saves Stevenson Ranch homeowners real time. We submit the HOA architectural review application and the county building permit application in parallel. While the committee reviews aesthetics, the county reviews structural compliance. We schedule rough-in for the week we expect sign-off, not after it arrives. That sequencing is the difference between a six-month ADU and a nine-month ADU in this specific community.

Trusted Brands We Service in Stevenson Ranch

We’re authorized to build with Dvele, Cover, and Boxabl, which matters in Stevenson Ranch because the HOA will ask exactly what materials are going on your lot. Dvele’s prefab panels arrive with factory-installed insulation rated for the hot, dry Stevenson Ranch summers. Cover’s panelized system lets us match exterior cladding to the main house’s stucco tone. Boxabl gives Stevenson Ranch homeowners a compact, cost-controlled option for a studio ADU on an alley-accessible rear lot. We keep the paperwork and material specs for each brand ready to drop into your HOA submittal packet, so the committee sees exactly what the finished structure will look like from the street.

Common ADU Builders Problems We See in Stevenson Ranch Homes

  • HOA palette rejection. A homeowner submits plans with a generic desert tan stucco chip, and the Stevenson Ranch Residential Association bounces it because the tract’s approved palette has seven specific shades and tan is not one of them. The whole review restarts, costing six weeks.
  • Foundation work before approval. Some contractors pour concrete the moment the county permit lands, but the HOA’s architectural review has not signed off yet. That triggers a stop-work order and a 14-day cooling-off period, and the half-poured foundation sits exposed through Stevenson Ranch’s August heat.
  • Rear-alley access miscalculation. Backing a prefab delivery truck down an alley that tapers to 12 feet when the home’s parcel maps showed 18 feet creates a real problem. We measure the actual width before ordering modular sections.
  • Santa Ana wind damage to unsecured framing. An ADU framed without wind-rated tie-downs, left exposed during the October wind season, loses sheathing and warps studs. Stevenson Ranch sits in a wind corridor, and the county’s wind-load requirements apply even on smaller ADUs.

Pricing for ADU Builders in Stevenson Ranch, CA

A detached ADU in Stevenson Ranch runs $180,000 to $320,000 depending on size, foundation type, and how much HOA-mandated customization the exterior needs. A JADU conversion lands between $60,000 and $140,000. Prefab installations from Dvele or Cover typically fall in the $200,000 to $310,000 range for a one-bedroom unit with Stevenson Ranch-appropriate finish work. Plan sets alone cost $8,000 to $15,000 when they include HOA-ready elevations and palette documentation. HOA review fees, county permits, and utility connections add $18,000 to $35,000 depending on the tract and alley access. We give every Stevenson Ranch homeowner a written price before any work begins, and that number does not change once the HOA signs off. Call (661) 219-7906 for a free estimate specific to your lot.

We Also Serve Cities Near Stevenson Ranch

Our crews work across the Santa Clarita Valley and into the West Valley. That includes Santa Clarita, Castaic, Porter Ranch, and Chatsworth. If your property sits outside Stevenson Ranch proper, we still bring the same written pricing and HOA-aware process. See our full Stevenson Ranch coverage for details on how we handle your specific area.

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 Builders in Stevenson Ranch

Why Stevenson Ranch Chooses Benson ADU Santa Clarita

We set the standard for adu builders in Stevenson Ranch.

No Change-Order Surprises

The written quote you sign is the price you pay. Anything we find mid-job gets priced and approved by you in writing before we touch it.

Licensed & Insured

Fully certified technicians who meet all local and state licensing requirements.

Upfront Pricing

No hidden fees, no surprises. You approve the price before any work begins.

Guaranteed Work

Every repair and installation is backed by our workmanship warranty and satisfaction guarantee.

How It Works in Stevenson Ranch

Getting your adu builders handled is simple and fast.

1

Call or Request a Free Estimate

Tell us about your adu builders 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.

What happens when you call

  1. 1
    A real person answersNo phone trees - talk to a local adu builders 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

Trusted by homeowners across Stevenson Ranch and surrounding areas.

★★★★★

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

Trina M. · Verified customer
★★★★★

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

Gwen D. · Verified customer
★★★★★

"Room addition off the kitchen. Framing, drywall, and paint all done well."

Wade L. · Verified customer

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.

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

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(661) 219-7906

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