A Benson company - serving San Francisco, CA
A quiet residential street with a new ADU behind one of the homes
Albany, CA

ADU Company in Albany - Design, Permits and Build Under One Contract

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
Schedule Free Estimate

Call to schedule your free estimate

Free Estimate on SiteCalls Answered by a Live Person, 24/7Background-Checked TechniciansA Local Team in San Francisco
🛡 Licensed & Insured 📝 Written Fixed-Price Quotes 💲 No Change Orders · Free Estimates
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 single-story rear room addition with tall windows and a new patio
A new sunroom addition with three walls of windows
A second-story addition that matches the existing roofline
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 Albany, CA

Albany, CA is one of the trickier Bay Area cities to add an ADU in, and that’s not a complaint. The small lots, the pre-1940 bungalows, and the design-review culture here mean every project has to be more deliberate than the same job would be two exits down the freeway. We’re a full-service ADU company serving Albany with written pricing before any work starts, a 365-Day Done Right Promise, and crews who know how to keep a 900-square-foot lot functional while we build on it. For a free estimate, call (424) 328-5746.

Call (424) 328-5746

Why Albany Homes Are Different

The bathroom inside a new ADU

Albany’s housing stock is dominated by early-20th-century Craftsman bungalows and Mediterranean-style homes. Many of them still have the original wood-framed garage at the back of the lot, and that’s often where an ADU wants to go. The challenge is that most Albany lots are compact, so the old garage is usually sitting tight against a fence or side property line. When we convert one, we’re often working with existing foundations that need seismic retrofitting before any new framing starts. That’s standard for the city, not a surprise upcharge.

The climate matters too. Albany gets cool, foggy summers and mild, wet winters. Slab-on-grade additions here need a proper vapor barrier underneath, or the first winter will show you exactly where the damp is coming through. North-facing ADUs on tight lots rarely get much passive solar help, which pushes insulation choices harder than in sunnier parts of the East Bay. None of this is glamorous, but it’s what makes an Albany ADU actually comfortable year-round.

On the numbered streets east of San Pablo Avenue, rear-yard ADUs often replace those old detached garages. The 4-foot side-yard setback rule and the city’s green space requirement mean many owners end up with a two-story ADU that has a small footprint and, sometimes, a cantilevered upper floor to squeeze usable square footage without breaking the setback line. It’s a specific solution to a very Albany problem.

Our Main Albany Services

Albany homeowners call us most often for two things: building an ADU from scratch, and expanding the main house. Here’s what each one looks like in Albany specifically.

ADU Builders in Albany

Albany’s ADU-friendly zoning helps on paper, but the design-review culture means your plans will get looked at closely. We handle that. The typical Albany ADU project involves either converting a detached garage or building new in a rear yard with minimal setback flexibility. We pair site-built framing with prefab options from brands like Boxabl and Plant Prefab when the lot or timeline makes that smarter. Written pricing comes before any permit application. See our ADU Builders in Albany page for full detail.

ADU Builders in Albany

Home Addition Contractor in Albany

Home additions in Albany usually mean sticking close to the original structure. The bungalows here don’t always have a natural wing to build from, so we spend real planning time on roofline integration and foundation matching. Seismic retrofit of the existing portion is common. We build with James Hardie cladding when the addition needs to match a newer look, or we match existing wood detailing when the design review asks for it. See Home Addition Contractor in Albany for the full scope.

Home Addition Contractor in Albany

Room Addition Contractor in Albany

A room addition in Albany is often a smarter first step than a full second story, especially when the lot makes a rear expansion easier than a vertical one. Older Albany homes frequently have basements or underused ground-floor space that can be converted, but the foundation work and moisture management have to be done right. We give every Albany room addition a written scope and price before any work starts. See Room Addition Contractor in Albany.

Room Addition Contractor in Albany
Need help today?Fast, friendly service and a no-obligation free estimate.

Call (424) 328-5746

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 Albany

We build with and service prefab and materials brands Albany homeowners know and can research independently: Boxabl, Plant Prefab, Tuff Shed, and James Hardie cladding. Parts and panels are ordered to the project schedule, not warehoused. For full detail on the brand lineup, see our brands.

Pricing for ADU Company in Albany, CA

Service Typical range in Albany
Detached garage ADU conversion $180,000 – $320,000
New rear-yard ADU (site-built) $250,000 – $450,000
Two-story ADU with cantilevered upper floor $300,000 – $500,000
Prefab ADU (Boxabl or Plant Prefab) with site work $190,000 – $380,000
JADU (junior ADU inside existing home) $90,000 – $160,000
Home addition (ground-floor, up to 400 sq ft) $180,000 – $350,000
Room addition (single room, foundation to finish) $90,000 – $180,000
Basement conversion (when feasible on Albany lots) $150,000 – $280,000
Seismic retrofit (add-on to any of the above) $15,000 – $45,000

What pushes Albany pricing up is usually the lot itself: tight access, the 4-foot side-yard setback, and design-review iterations. What we don’t do is change the number after work starts. Every Albany project gets a written price before anything is signed, and that price holds.

Neighborhoods We Serve in Albany

We work across all of Albany, from the numbered streets east of San Pablo Avenue up through the hills, and over to the flats near the BART corridor. Every neighborhood has its own setback and access quirks, but the one thing you can count on is that we schedule Albany jobs with enough crew time to respect the city’s narrow streets and tight driveways.

  • St. Mary’s / Eastshore
  • Albany Terrace
  • Fairmont
  • Cerrito Creek area
  • San Pablo Avenue corridor

Service Area – Cities Near Albany

Our crews serve Albany and the surrounding East Bay cities. If you’re a few minutes away in Berkeley, CA or Piedmont, CA, or up near Pinole, CA and Hercules, CA, the same written pricing and 365-Day Done Right Promise applies. Dispatch is coordinated from our San Francisco Bay Area office, with local crews serving Albany directly.

Serving Albany, CA - Our Local Coverage Area

We’re based in the Albany 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 Albany

A small deck outside a new ADU

Ready to get started? Free estimates · Free written quotes response in Albany
Call (424) 328-5746

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 Albany Customers Say

★★★★★ 4.7 from 7+ reviews

"Great build. Inspection delay, the county's fault, pushed things a week, but updates were clear."

- Soo-jin P.

"Garage conversion into a guest suite. I could see the permit status in the app, which made it painless."

- Rick F.

"Solid job. Cabinets arrived late but they adjusted the schedule."

- Eli K.

How It Works in Albany

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 Albany - 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 Albany

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

Getting started with Benson in San Francisco

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 San Francisco team

A local crew that works across San Francisco 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

Request a Free Estimate

Tell us what's going on in Albany - we'll get back to you fast. No obligation.

By clicking submit, you confirm you have read our Privacy Policy and agree that you may be contacted through phone, text, or email regarding your project, including by the service partners who may complete the work.

Prefer to text? Send a Text
Call Now - 24/7 Dispatch
Areas We Serve
Call Now - 24/7 Dispatch