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Get your free estimateFast, 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.

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

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.

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
Yes, in most Stevenson Ranch tracts the architectural guidelines require the ADU’s roof pitch, tile profile, and color to match the primary residence within 90% visual similarity. That rule applies most strictly in the 1990s communities off Stevenson Ranch Parkway. We pull the specific requirement for your tract before drafting plans so the submittal packet passes on the first review. Call (661) 219-7906 and we’ll check your property’s exact mandate.
Stevenson Ranch HOA architectural review typically adds four to eight weeks on top of the county building permit timeline, compared to neighboring areas without HOA jurisdiction. The key is submitting the HOA packet and the county application at the same time, the way we do. That parallel path means the two approvals land close together, so construction can start without a committee wait. For an exact timeline on your lot, call (661) 219-7906.
Yes, and the rear alley actually helps in many cases. Alley access means utility connections can run from the back without trenching through your front yard or disrupting the main house. The catch is that alley widths vary from 12 to 18 feet across Stevenson Ranch parcels, so we measure the actual opening before ordering prefab sections or scheduling a crane. Call (661) 219-7906 and we’ll assess your alley access.
Stucco matching the primary residence’s finish and color palette is the default in most Stevenson Ranch tracts. Spanish tile or concrete tile roofing may be required where the main house uses it. In some cases the HOA approves James Hardie siding if the color is matched to the stucco’s approved palette. We submitted a design packet off Hemingway Avenue with a Santa Barbara stucco finish, Spanish tile roof, and Hardie siding in a muted sand tone, and it passed on the first review. Call (661) 219-7906 for specifics on your tract.
We do. The homeowner signs, but we prepare and submit the full packet: plan set, color palette chips, roof pitch drawings, elevation views, and material specs. That removes the most common failure point, which is a homeowner submitting plans without the HOA’s specific color chip sign-off and triggering a second full review cycle. Call (661) 219-7906 and we’ll handle the filing from day one.
Written by Troy Eastman, Owner at Benson ADU Santa Clarita, serving Stevenson Ranch with written-price ADU construction and HOA-aware planning.



