A free site visit, a check of what your lot allows and a written, line-item price.
Get your free estimateADU Company in Long Beach, CA
Adding an ADU in Long Beach usually runs $180,000 to $450,000 for a turnkey prefab or site-built unit, with permit fees and utility connections adding several thousand more. Long Beach jobs are shaped by the city’s older housing stock, tight lots near the coast, and a planning department that sees hundreds of ADU applications a year. We’re Benson ADU Builders, and we put a written price in front of you before any work starts. Call (903) 568-7222 to talk through what your lot can hold.
Why Long Beach Homes Are Different
Long Beach is a city of bungalows, Spanish-style courtyard homes, and 1940s and 1950s stucco boxes on 5,000 to 6,500 square foot lots. That means ADU work here is rarely copy-and-paste. The garages are often detached and set back from the alley, which can make a garage conversion simpler than you’d think, or trickier depending on where the gas and electrical lines actually run. Homes in neighborhoods like Belmont Heights, Bixby Knolls, and North Long Beach sit on different soil and different lot shapes, and that changes foundation and drainage decisions before a single panel arrives.
Coastal moisture matters too. Homes south of 4th Street and closer to the water deal with salt air on any exposed framing, and we spec materials accordingly, often James Hardie cladding for anything that faces the ocean breeze. Setbacks, those are the required distances between your ADU and the property lines, are tighter near the coast and looser further inland, and Long Beach follows California state ADU law while adding its own review layers for historic districts like Bluff Park and Rose Park. A written plan that accounts for all of this before you spend money is the only sane way to start.
Our Main Long Beach Services
Most Long Beach homeowners reach out about one of three things: a standalone ADU in the backyard, an addition that grows the existing house, or a single room built out where the garage or an unused side yard sits now.
ADU Builders in Long Beach
The two paths here are detached units and garage conversions, and Long Beach has plenty of both waiting to happen. A detached ADU goes where the yard allows, respecting setbacks and privacy, while a garage conversion reuses a structure that’s already on the lot. Setbacks, soil, and alley access all change the math. We build with prefab brands like Abodu and Cover when speed and fixed pricing matter most, and we handle the site work, foundation, and utility tie-ins that prefab panels still require. ADU Builders in Long Beach has the full breakdown.
Home Addition Contractor in Long Beach
An addition grows your existing footprint, and in Long Beach that often means pushing out the back of a 1950s ranch in East Long Beach or adding a second story over a single-level home in Los Altos. This is a bigger structural conversation: footings, roof tie-ins, and matching the existing walls so the new space doesn’t look bolted on. We walk you through the written price in the first conversation, so you know what an addition actually costs before you fall in love with a drawing. Home Addition Contractor in Long Beach covers it.
Room Addition Contractor in Long Beach
A room addition is one space: a primary suite, an office with a separate entrance, a den. Long Beach homes from the 1930s and 1940s often don’t have a true primary suite by modern standards, and a room addition solves that without moving. The work is smaller than a full addition, but the same rules apply around permitting, foundation ties, and making the roofline match the original house. We keep the scope tight and the price in writing from day one. Room Addition Contractor in Long Beach has examples and pricing.
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 Long Beach
Long Beach homeowners can choose from prefab systems from Abodu, Cover, and Dvele, plus James Hardie cladding for anything site-built. Panels are ordered to spec and delivered to your lot; the site prep and finishing work all happen locally. See our brands for the full lineup and what each system costs per square foot.
Pricing for ADU Company in Long Beach, CA
| Service | Typical range in Long Beach |
|---|---|
| Detached ADU (turnkey, prefab) | $180,000 – $350,000 |
| Detached ADU (site-built) | $250,000 – $450,000 |
| Garage conversion ADU | $120,000 – $200,000 |
| JADU (junior ADU, attached) | $80,000 – $150,000 |
| Home addition (single story, 400 – 600 sq ft) | $150,000 – $280,000 |
| Home addition (second story) | $250,000 – $450,000 |
| Room addition (200 – 300 sq ft, attached) | $80,000 – $150,000 |
| Utility connection (sewer, electrical, water) | $8,000 – $25,000 |
| Permit and plan fees (Long Beach) | $5,000 – $15,000 |
Prices in Long Beach shift with lot access, foundation type, and how far the utility lines run from the street. Whatever the number, it’s in writing before we start, and it doesn’t change unless you change the scope.
Neighborhoods We Serve in Long Beach
We work across Long Beach, from the older blocks near downtown to the postwar streets further out. Response times are usually within a few days for an estimate visit, depending on where in the city you are and how full the schedule is that week.
- Belmont Heights
- Bixby Knolls
- North Long Beach
- East Long Beach / Los Altos
- Bluff Park
Service Area – Cities Near Long Beach
Our Long Beach crews also cover the cities right around the edges. If you’re in Signal Hill, CA, Carson, CA, Seal Beach, CA, or Lakewood, CA, the same written pricing and 365-Day Done Right Promise apply.
Serving Long Beach, CA - Our Local Coverage Area
We’re based in the Long Beach 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 Long Beach
Most Long Beach estimate visits happen within three to five business days of your call. Our dispatchers confirm a live arrival time by text, and you’ll know exactly who’s coming and when, no four-hour windows.
Yes. Every ADU, JADU, and attached addition in Long Beach requires a city permit, and historic districts like Bluff Park have extra design review. We handle the full permit package and inspections as part of the job, and the cost is in your written price up front.
No, unless you change the scope. Your written price covers the work we agreed on. If you add a window, a wall, or a finish upgrade mid-project, we price that change in writing before the crew touches it. Call (903) 568-7222 to get your free estimate started.
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 Long Beach Customers Say
"Booked a consult online and met the project manager two days later. Weekly progress updates arrived by text with photos. ADU finished on schedule."
- Hannah W."Clean, quiet crew. They respected the neighbors, kept noise to working hours, and swept the driveway every evening."
- Hope C."Communication was the best part. I always knew what was happening that week without having to ask."
- Dolly N.
