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 livable square footage in Long Beach usually means one of three projects: a detached ADU in the backyard, a garage conversion, or a room addition that pushes into the side yard. Each has a different permit path, a different foundation strategy, and a different price range, but they all start the same way, with a written price before anyone shows up. Long Beach’s older housing stock, small lots south of the 405, and coastal air all shape how we approach the work. Call (472) 248-8213 to schedule a free estimate, and we’ll walk the lot with you before you commit to anything.
Why Long Beach Homes Are Different
Long Beach is not one housing market. It is a collection of them, and the lot you own in Belmont Shore is nothing like a lot in Bixby Knolls or North Long Beach. The older neighborhoods, Alamitos Beach, Rose Park, much of the central corridor, are dense with 1920s and 1930s bungalows on tight lots. That matters for ADU work because setback rules (the required gap between your new structure and the property line) get restrictive fast. A 4-foot side yard on a 5,000-square-foot lot does not leave much room before you need a variance or a creative footprint.
Coastal air is the other constant. Homes west of Redondo Avenue and south of Ocean Boulevard take decades of salt exposure, which shows up in corroded anchor bolts, rusted sill plates, and door frames that have shifted. When we attach a new structure or open a wall for a room addition, we are often repairing that exposure before we build on top of it. The marine layer also shortens exterior paint and caulk life, so we spec James Hardie siding and trim on most Long Beach additions. It holds up better than wood composite within a mile of the water.
Our Main Long Beach Services
Most Long Beach homeowners call us about one of three projects. Each has its own page with local pricing, permit details, and what the build actually involves.
Home Addition Contractor in Long Beach
A home addition in Long Beach usually means extending the rear of the house or capturing an existing patio. On the older bungalow lots, that often requires matching roof pitch, updating the foundation connection, and working around overhead utility lines that run along the alley. We have done enough of these to know where the surprises hide, usually at the foundation and the roofline. Read the full breakdown on our Home Addition Contractor in Long Beach page.
ADU Builders in Long Beach
Detached ADUs in Long Beach work best on lots with rear alley access or a side yard wide enough for equipment. We help homeowners choose between stick-built units and prefab lines like Abodu, Cover, and Dvele, which changes both the timeline and the foundation spec. Garage conversions are the other common path, and those come with their own structural questions. See local pricing and the permit path on our ADU Builders in Long Beach page.
Room Addition Contractor in Long Beach
A room addition is the most surgical of the three. You are adding one bedroom, a home office, or a second bathroom, not reworking the whole property. On Long Beach’s narrow lots that usually means building up rather than out, or converting underused space like a sun porch. We walk the lot first, confirm what the setbacks actually allow, and price it before you decide. Details are on our Room Addition Contractor in Long Beach page.
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
We work regularly with Abodu, Cover, and Dvele prefab ADU systems, and we spec James Hardie siding and trim on the majority of our Long Beach additions. Parts and panel options are stocked through local supply houses, so change orders rarely stall a build. See the full product list on our brands page.
Pricing for ADU Company in Long Beach, CA
These are the ranges we quote most often for Long Beach projects. Every price below assumes a written, line-item quote before work starts, so you know the full number before you sign.
| Service | Typical range in Long Beach |
|---|---|
| Detached ADU, 400 – 750 sq ft (stick-built) | $180,000 – $320,000 before site work |
| Detached ADU, 400 – 750 sq ft (prefab, e.g., Abodu or Cover) | $160,000 – $290,000 including factory build |
| Garage conversion to ADU | $90,000 – $170,000 |
| Room addition, 300 – 500 sq ft | $95,000 – $185,000 |
| Room addition with bathroom | $120,000 – $220,000 |
| Primary suite addition | $140,000 – $260,000 |
| Foundation upgrade on older Long Beach homes | $12,000 – $35,000 depending on scope |
| Site work, grading, utility connections | $15,000 – $45,000 |
What pushes a Long Beach price up is usually the lot. Tight side yards mean more hand work and smaller equipment. Older foundations mean more retrofit before we build. Salt-damaged framing adds repair hours. What does not push the price up is a surprise invoice, because the number is written down before we start.
Neighborhoods We Serve in Long Beach
We work across all of Long Beach, from the water to the 91 Freeway. Most of our ADU projects cluster in the central and east neighborhoods, where lots are big enough for a detached unit but old enough to need real site work first.
- Belmont Shore and Belmont Heights
- Bixby Knolls and California Heights
- Alamitos Beach and Rose Park
- North Long Beach and the Bixby corridor
- Naples and the Peninsula
For most Long Beach addresses, we can have a crew on site within a few days of the signed quote, depending on material lead time and the city’s current permit queue.
Service Area – Cities Near Long Beach
We also take on ADU and addition work in the surrounding cities. If you live just over the border in Signal Hill, CA, Carson, CA, Seal Beach, CA, or Lakewood, CA, the same written-price and crew-vetting standards apply. Scheduling is coordinated from our Los Angeles office, with crews serving Long Beach locally.
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
For most Long Beach addresses, we can schedule an initial site visit within a few days of your call. The permit process is the longer variable, Long Beach Development Services typically takes four to eight weeks for standard ADU plan checks, though prefab systems sometimes clear faster. Call (472) 248-8213 and we’ll give you a realistic timeline for your specific lot.
If your home sits in an HOA, yes, you generally need architectural committee approval even though state law limits how much an HOA can restrict ADUs. We help you prepare the drawings and documentation the HOA asks for, and we flag any restrictions early so you don’t pay for plans that won’t pass. Call (472) 248-8213 for guidance on your specific community.
Permit fees are a separate line item on every quote we write. Long Beach charges per square foot plus plan check fees, and those costs go directly to the city, not to us. What you can count on is that the construction price we write down is the construction price you pay. Call (472) 248-8213 for a free estimate with all fees broken out.
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
"Every crew member was vetted and carried a badge, which matters when they are around your family for months. Tidy site every day."
- Daniel F."Itemized estimate with allowances laid out. Final cost was within a hair of the quote."
- Naomi R."Backyard ADU for my mother. The project manager showed ID and walked me through the permit steps, the foundation plan, and the schedule. Moved her in on time."
- Margaret C.
