A Benson company - serving Sacramento, CA
A quiet residential street with a new ADU behind one of the homes
West Sacramento, CA

ADU Company in West Sacramento - 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 Sacramento
🛡 Licensed & Insured 📝 Written Fixed-Price Quotes 💲 No Change Orders · Free Estimates
A new modern ADU with wood cladding
The bedroom inside a new ADU
The bathroom inside a new ADU
A small deck outside a new ADU
The living room inside a new ADU
A new sunroom addition with three walls of windows
A second-story addition that matches the existing roofline
A second-story addition with a balcony, matched to the original house
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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ADU 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.

Call (279) 254-1808

Why West Sacramento Homes Are Different

A compact kitchen inside a new ADU

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.

ADU Builders in West Sacramento

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.

Home Addition Contractor in West Sacramento

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.

Room Addition Contractor in West Sacramento
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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 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

A new two-story ADU over a garage

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

A single-story rear room addition with tall windows and a new patio

Ready to get started? Free estimates · Free in-home estimates response in West Sacramento
Call (279) 254-1808

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 West Sacramento Customers Say

★★★★★ 4.7 from 7+ reviews

"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.

How It Works in West Sacramento

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 West Sacramento - 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 West Sacramento

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

Getting started with Benson in Sacramento

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 Sacramento team

A local crew that works across Sacramento 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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