ADU Company in Lakewood, CA
Building an ADU in Lakewood means working with one of America’s most uniform housing stocks: nearly every home is a 1950s wood-frame ranch on a compact 5,000 – 6,000 square foot lot with a detached one-car garage in the rear. Because Lakewood contracts its building and safety services to LA County rather than running its own department, permits flow through the LACBS system on timelines that differ from neighboring Long Beach’s independent process. We’re Seedling ADU Builders, and we coordinate dispatch and scheduling from our Los Angeles office while crews work Lakewood properties locally. Call (707) 383-5338 to talk through your lot and get a written estimate.
Why Lakewood Homes Are Different
Lakewood was built almost entirely between 1950 and 1953 as one of America’s first large-scale master-planned suburbs. That history matters for every ADU project we take on here.
The housing stock is remarkably consistent: single-story ranches of 1,100 – 1,400 square feet, wood-frame construction, with detached one-car garages that lack wall insulation, sit on slab floors, and carry minimal electrical service. Original 60-amp panels in both the main house and garage subpanels are standard, not rare. Galvanized supply lines, corroded by LA’s moderately hard water, frequently need full replacement before an ADU conversion can pass LACBS inspection.
Summer afternoons in Lakewood run 10 – 15°F warmer than the immediate Long Beach coast. An uninsulated 1950s garage shell becomes uncomfortable fast, so mini-split sizing and wall/ceiling insulation aren’t upgrades we suggest; they’re requirements we plan for from the first site visit.
The tract garages were poured and framed to near-identical dimensions, and ceiling heights often land at or just below the 7-foot habitable-space minimum in the California Building Code. On nearly every Lakewood job, we measure to the inch and decide early whether to grind the slab, raise the roof plate, or document existing compliance before LACBS will sign off.
Our Main Lakewood Services
Most Lakewood families who call us start with one of these three projects:
Home Addition Contractor in Lakewood
Adding square footage to a 1950s ranch in Lakewood means matching rooflines, foundation types, and often upgrading the main electrical panel from 60 amps to 200 amps to handle the new load. We pull LACBS permits, coordinate inspections, and protect your floors with drop cloths and shoe covers while crews work. Our Home Addition Contractor in Lakewood page details how we keep living spaces usable during construction.

Garage Conversion Contractor in Lakewood
Detached garage conversions are the dominant ADU pathway in Lakewood because nearly every lot has that same rear one-car structure. We address slab grinding or roof raising for code height, insulate walls and ceilings for inland summer heat, and replace corroded galvanized lines before LACBS sees them. See our full process on our Garage Conversion Contractor in Lakewood page.

ADU Builders in Lakewood
Whether you’re converting an existing garage or building new, we work with prefab and modular systems including Abodu, Cover, and Dvele to match Lakewood’s compact lots and LACBS requirements. Every project gets a written price before any work begins, backed by our 365-Day Done Right Promise. Learn more on our ADU Builders in Lakewood 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 Lakewood
We maintain hands-on access to leading ADU brands and materials including Abodu, Cover, Dvele, and James Hardie, so Lakewood homeowners choose the right product for their lot rather than accepting whatever a builder prefers to sell. Parts and expertise for these systems are stocked locally, which keeps timelines predictable once LACBS permits clear. See our brands for full details.
Pricing for ADU Company in Lakewood, CA
| Service | Typical range in Lakewood |
|---|---|
| Detached garage conversion (basic) | $85,000 – $140,000 |
| Detached garage conversion (full finish) | $140,000 – $220,000 |
| New detached ADU (studio, 400 – 500 sq ft) | $180,000 – $280,000 |
| New detached ADU (1-bedroom, 600 – 750 sq ft) | $250,000 – $380,000 |
| Home addition (per sq ft) | $350 – $550 |
| Electrical panel upgrade (60A to 200A) | $4,500 – $8,500 |
| Galvanized plumbing replacement (garage) | $3,500 – $7,000 |
| Slab grinding for ceiling height compliance | $2,500 – $5,500 |
| Mini-split HVAC (single zone) | $4,000 – $7,500 |
| Wall and ceiling insulation (R-13/R-19) | $3,000 – $6,000 |
What pushes Lakewood prices higher: corroded galvanized lines requiring replacement, electrical panels that won’t handle ADU loads, and slab or roof work to meet that 7-foot ceiling minimum. What doesn’t push prices higher: surprise line items added after we start. Every family receives a written price before any work begins, with no exceptions.
Neighborhoods We Serve in Lakewood
We work across Lakewood’s established residential tracts, from the original 1950s sections near Lakewood Boulevard to the slightly later infill near Del Amo. Crews typically arrive within scheduled windows throughout the city.
- Lakewood Village
- Lakewood Country Club area
- Mayfair Park vicinity
- Del Amo neighborhood
- Long Beach Boulevard corridor
Service Area – Cities Near Lakewood
Our crews work Lakewood properties directly and also serve neighboring communities where homeowners face similar mid-century housing conditions and LACBS or independent city permitting. We regularly build in Lomita, CA, Torrance, CA, Carson, CA, and Rancho Palos Verdes, CA. Dispatch and scheduling are coordinated from our Los Angeles office.
Serving Lakewood, CA - Our Local Coverage Area
We’re based in the Lakewood 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 Lakewood
Permits run through LA County Building and Safety (LACBS), not a city department, which typically adds 2 – 4 weeks compared to cities with independent building departments. We submit complete packages to avoid LACBS rejection loops. Call (707) 383-5338 to discuss your timeline.
Most Lakewood tracts were built before modern HOAs became common, but a few later sections and condo conversions do have covenants. We verify CC&Rs during our first site review and flag any restrictions before you invest in plans. Call (707) 383-5338 for a free estimate.
Yes. Our crews use quiet tools where possible, respect school-hour schedules, and follow the Cedarwell Care Promise: shoe covers and drop cloths inside, pet-safe products where there’s a choice, and a photo of the clean-up before we leave. Background-checked, uniformed technicians on every job. Call (707) 383-5338 to schedule around your family’s routine.
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 Lakewood Customers Say
"Garage conversion into a studio. They sealed off the work area so dust didn't get into the house, and cleaned up every day before leaving. Calm, careful team to have around."
- Darnell Hobbs"Added a backyard cottage. The team protected our existing landscaping and left the yard clean every evening. Gentle, respectful, and they walked us through each stage calmly."
- Tamara Welsh"Garage to studio conversion with us living right there. They sealed off the dust, cleaned up daily, and respected our quiet hours. No surprise costs. Beautiful."
- Terrence Boylan