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

ADU Company in Sacramento - One Fixed Price, Permits Handled

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 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
The bathroom 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.

Get your free estimate

ADU Company in Sacramento, CA

Sacramento has become one of California’s most active ADU markets, and the reason is simple: the city’s pre-approved ADU plans program and relaxed setback rules make permitting faster and less expensive here than almost anywhere else in the state. But most Sacramento lots come with quirks – pre-1950s bungalows on shallow parcels, rear alleys, older utility lines – that a generic builder won’t catch until the project is already over budget. We’re Sutton ADU Sacramento, and we handle both sides of that equation: the speed the city allows, and the site conditions the city can’t see. If you’re weighing an ADU, a home addition, or a room addition, call us at (279) 300-1690 and we’ll walk you through what your specific lot can support.

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Why Sacramento Homes Are Different

A small deck outside a new ADU

Sacramento’s housing stock runs from early-20th-century bungalows in East Sacramento and Land Park to mid-century ranch homes and 1970s and 80s tract houses across the wider city. That matters for ADU work because the older the home, the more likely the existing utility panel, water line, and sewer lateral were sized for a much smaller demand. Many lots are deep enough for a detached ADU, but the infrastructure at the street often needs an upgrade before the city will sign off. We check that in the first walkthrough, not mid-project.

The climate shapes material choices, too. Sacramento regularly sees 100°F summer days, so any ADU or addition needs high-efficiency cooling and sun-resistant siding and roofing. Winters are mild but wet, which means drainage and roof flashing details decide whether a unit stays dry for decades or starts showing moisture problems in year two. We build for that specific combination: hot-dry summers, rain-heavy winters, and clay-heavy soils that shift with the seasons. Add in the city’s many pre-1950s homes with shallow lots and rear alleys, and you get a market where pre-approved plans help a lot, but local experience decides the final result. One more Sacramento-specific wrinkle: in East Sacramento and Land Park, many homeowners build above detached garages accessed from alleys, but the city’s pre-approved plans only cover single-story units, so two-story garage conversions go through a slower custom review. That’s the kind of thing you want to know before you buy plans, not after.

Our Main Sacramento Services

Sacramento homeowners call us for three projects more than any others: full home additions, ADU builds, and room additions. Each has its own dedicated Sacramento page where we cover local pricing and process in depth.

Home Addition Contractor in Sacramento

A home addition in Sacramento usually means expanding a mid-century ranch or a 1970s tract house to fit a growing household, an aging parent, or a home office that’s outgrown the spare bedroom. The job involves matching rooflines, tying into existing foundations, and often upgrading the electrical panel and HVAC to carry the added square footage. On older Sacramento lots, we also have to plan around rear alleys and tight side setbacks, which shape how far the addition can extend. If you’re weighing a full addition against a detached unit, the numbers and the site constraints often point in different directions. We lay both out plainly. See the full breakdown on our Home Addition Contractor in Sacramento page.

Home Addition Contractor in Sacramento

ADU Builders in Sacramento

Sacramento’s pre-approved ADU plan program is a genuine advantage for homeowners – it can cut weeks off permitting and thousands off design fees. But those pre-approved plans only cover single-story units, and a lot of Sacramento lots are better suited to a two-story ADU over a garage, which means custom review and a longer timeline. We help you decide which path fits your lot, your budget, and your timeline before you commit to a plan set. We also work directly with prefab and modular ADU brands like Abodu, Cover, and Dvele, so if a factory-built unit makes more sense for your site than stick-built, we’ll tell you that too. Full process and pricing detail on our ADU Builders in Sacramento page.

ADU Builders in Sacramento

Room Addition Contractor in Sacramento

A room addition in Sacramento – a new primary suite, a larger kitchen, a ground-floor bedroom that avoids stairs – usually costs less than a full addition but still requires the same foundation, electrical, and roof work that the city inspects closely. On Sacramento’s older bungalows, we often find knob-and-tube wiring or undersized panels that must be addressed before the room can pass inspection. We price that work into the written estimate from day one, so the permit stage doesn’t produce a surprise invoice. If a single room is all you need, this is often the most cost-effective way to add livable square footage. Details on our Room Addition Contractor in Sacramento page.

Room Addition Contractor in 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 Sacramento

We build with and service the major prefab and modular ADU lines homeowners in Sacramento ask about most: Abodu, Cover, Dvele, and Mighty Buildings. We keep replacement parts for common systems in stock locally, so a failed water heater or a cracked panel on a factory-built unit doesn’t mean waiting on a shipment from out of state. For the full list of product lines we work with, see our brands.

Pricing for ADU Company in Sacramento, CA

Service Typical Range in Sacramento
Detached ADU (400-800 sq ft) $180,000 – $320,000 before site work
Garage conversion ADU $120,000 – $210,000
Two-story ADU over garage $260,000 – $420,000
Prefab ADU (Abodu, Cover, Dvele) $200,000 – $350,000 installed
Room addition (200-400 sq ft) $90,000 – $180,000
Primary suite addition $140,000 – $250,000
Full home addition (500+ sq ft) $220,000 – $400,000
Utility upgrade (panel, sewer, water line) $8,000 – $25,000 depending on scope
Site work, foundation, and drainage $25,000 – $60,000

What pushes the price up in Sacramento is usually one of three things: the age of the existing utility infrastructure, the condition of the soil and drainage on the lot, or a two-story design that falls outside the city’s pre-approved plan program. Our written price is delivered before any work starts, and it stays the price – no change orders slipped in after excavation begins. If a condition arises we couldn’t see before opening the ground, we tell you what it costs before we touch it.

Neighborhoods We Serve in Sacramento

We work throughout the Sacramento city limits, and we schedule visits by neighborhood cluster so we can usually get to most parts of the city within a few business days for estimates and consultations.

  • East Sacramento
  • Land Park
  • Curtis Park
  • Natomas
  • Midtown

Service Area – Cities Near Sacramento

Our Sacramento office also schedules ADU and addition work in the surrounding communities, including Rio Linda, CA, Rancho Cordova, CA, Elk Grove, CA, and Orangevale, CA. If your property is just outside the city line, the same written price and Threshold Verified crew standards apply.

Serving Sacramento, CA - Our Local Coverage Area

We’re based in the 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 Sacramento

The living room inside a new ADU

Ready to get started? Free estimates · Free written quotes response in Sacramento
Call (279) 300-1690

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 Sacramento Customers Say

★★★★★ 4.8 from 5+ reviews

"Insulated the walls and ceiling properly. It stays comfortable even in July."

- Tamika W.

"They handled the drawings and the permit paperwork for us. All I had to do was pick the finishes."

- Rosa M.

"Great build and clear weekly updates. Plumbing inspection got pushed a week because of the city, which wasn't their fault, but it set us back a bit."

- Lucia P.

How It Works in 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 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 Sacramento

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

Getting started with Sutton 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 Sutton 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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