







A free site visit, a check of what your lot allows and a written, line-item price.
Get your free estimateADU Company in West Sacramento, CA
Benson ADU Sacramento is the ADU company West Sacramento homeowners call when they want a written price before any dirt moves. Adding an accessory dwelling unit here means working with a specific mix of older pier-and-beam homes in Broderick and newer tract builds in Southport, plus summer heat that pushes the high 90s and winter rain that tests roof flashing. We plan around all of it, and we put the number on paper before you commit. Call (279) 254-1808 to get your free estimate started.
Why West Sacramento Homes Are Different

West Sacramento’s housing stock splits along a pretty clear line. Broderick and Bryte are full of pre-1940 bungalows and early ranch homes, many sitting on pier-and-beam foundations with shallow footings. That matters for ADU work because tying a new unit’s foundation to the old one can trigger a full retrofit. In a lot of cases, the smarter move is an isolated pad poured next to the main house, which skips the expensive fix and keeps the project moving. Southport and the newer tracts from the 1990s and 2000s are easier: slab foundations, standard setbacks, fewer surprises when we dig.
Climate is the other thing nobody should ignore. West Sacramento summers run 90 to 100 degrees for stretches, so insulation and air sealing are not optional upgrades here. They’re the difference between an ADU that stays comfortable and one that cooks. Winters are mild but wet, and homes near the Sacramento River sit close enough to flood-plain realities that raised foundations are common. Roof design has to handle direct sun and heavy seasonal rain without failing at the flashing. These are the details a local contractor plans for from day one, and they’re the reason we price West Sacramento jobs for West Sacramento conditions, not some generic template.
The city’s growth has put real wind behind ADU construction, too. The 2020 Washington Specific Plan and the riverfront redevelopment push accessory units as a way to add housing on oversized lots. Broderick and Bryte especially: deep backyards, alley access, and detached garages that convert well. If you own one of those older homes with a big lot, you’re sitting on one of the better ADU sites in the city, provided the foundation work is planned right.
Our Main West Sacramento Services
Most West Sacramento homeowners come to us for one of three things: a new ADU, a home addition, or a room addition. Each has its own page with local pricing, timelines, and what to expect.
ADU Builders in West Sacramento
We build ADUs two ways in West Sacramento: prefab units from brands like Abodu and Dvele, and site-built units we frame on your lot. Prefab is faster and cleaner, which matters on Broderick lots where access is tight and neighbors are close. Site-built gives you full control over footprint and finish. Both routes start with the same conversation: what’s your lot shape, what’s your setback, and what can your budget actually buy? We carry you through permits, foundation decisions, and utility connections. See the full breakdown on our ADU Builders in West Sacramento page.

Home Addition Contractor in West Sacramento
A home addition in West Sacramento usually means going up or going out on a lot that already has a house on it. On older Broderick or Bryte properties, we often need to isolate the new foundation from the original so the addition doesn’t drag the old footings out of compliance. On newer Southport lots, it’s more about roofline matching and air sealing for the summer. You get a written price before we start, and the work is backed by our 365-Day Done Right Promise if anything isn’t right within the first year. Details are on our Home Addition Contractor in West Sacramento page.

Room Addition Contractor in West Sacramento
Room additions are the smaller end of the scale: an extra bedroom, a home office, a dining room bump-out. In West Sacramento, the main variable is how the new room attaches to the existing structure. Older homes with pier-and-beam foundations need a separate pad poured close to the house, while newer slab homes can sometimes tie in directly. We walk you through which applies to your house, give you a written quote, and schedule the work around your real life. Head to our Room Addition Contractor in West Sacramento page for specifics.

What happens when you call
- 1
A real person answersNo phone trees - you reach a local pro.
- 2
You get an upfront price rangeHonest numbers before anyone is dispatched.
- 3
A background-checked tech heads outLicensed & insured, dispatched right away.
- 4
You approve before work beginsNothing starts until you say go.
Brands We Service in West Sacramento
We’re authorized to build with Abodu, Cover, Dvele, and other leading prefab brands, and we use James Hardie cladding on projects where it makes sense for West Sacramento’s sun and wet-winter exposure. Every brand option is priced in writing before work starts. Browse our brands to compare what’s available.
Pricing for ADU Company in West Sacramento, CA
| Service | Typical range in West Sacramento |
|---|---|
| Detached ADU (site-built) | $180,000 – $350,000 |
| Detached ADU (prefab) | $150,000 – $300,000 |
| Garage conversion ADU | $120,000 – $220,000 |
| Attached ADU (addition-style) | $140,000 – $280,000 |
| Junior ADU (JADU) | $60,000 – $120,000 |
| Home addition (full, site-built) | $200,000 – $450,000 |
| Room addition (single room) | $50,000 – $120,000 |
| Foundation work (pier-and-beam retrofit to slab or isolated pad) | $15,000 – $45,000 |
| Seismic upgrade (existing home before addition) | $8,000 – $25,000 |
What pushes the price up in West Sacramento is usually one of three things: an older Broderick or Bryte home that needs foundation isolation or seismic work before we can build, a lot with poor alley or crane access that slows prefab delivery, or custom finish choices that add cost per square foot. Whatever the number lands at, you see it in writing before we start, and that written price is the price.
Neighborhoods We Serve in West Sacramento

We work across West Sacramento, from the older lots in Broderick and Bryte to the newer builds in Southport and Bridgeway Island. Here are a few of the neighborhoods where we’re regularly quoting and building:
- Broderick
- Bryte
- Southport
- Bridgeway Island
- State Streets
Most West Sacramento estimates are scheduled within a few business days, and we’ll give you a confirmed arrival time when you book.
Service Area – Cities Near West Sacramento
Benson ADU Sacramento also serves homeowners in surrounding areas. If you’re in Sacramento, CA, Elverta, CA, Davis, CA, or Antelope, CA, we can bring the same written-price approach to your project. Dispatch and scheduling are coordinated from the brand’s Sacramento office, with crews serving West Sacramento locally.
Serving West Sacramento, CA - Our Local Coverage Area
We’re based in the West Sacramento 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 West Sacramento

We serve West Sacramento directly. Scheduling is coordinated through our Sacramento office, but the crews and project managers are assigned specifically to West Sacramento jobs. Your estimate happens on-site, your build happens on your lot, and you deal with the same team throughout.
Yes. We pull the permits, schedule inspections, and handle the paperwork for your ADU or addition. If your neighborhood has an HOA with design-review requirements, we’ll flag that early and help you prepare what’s needed. The goal is zero surprises once the work starts.
Prefab ADUs typically run 4 to 8 months from contract to move-in, including permitting. Site-built units are usually 8 to 14 months. Older Broderick or Bryte homes may add time if foundation isolation or seismic work is required. We outline the full timeline in your written estimate before you sign anything.
Ready to talk numbers? Call (279) 254-1808 and we’ll schedule your free West Sacramento estimate. Written price, no surprises, every time.
What happens when you call
- 1A real person answersNo phone trees - talk to a local adu pro.
- 2You get an upfront price rangeHonest numbers before anyone is dispatched. No surprises.
- 3We come out and measureLicensed & insured, at a time that suits you - the visit and the quote are both free.
- 4You get the price in writingLine-itemed, yours to keep, and nothing starts until you say go.
What West Sacramento Customers Say
"Plumbing and electrical passed on the first inspection."
- Alan B."Communication was the best part. I always knew what was happening that week without having to ask."
- Dolly N."Solid job. Cabinets arrived late but they adjusted the schedule."
- Eli K.




