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Get your free estimateFast, Reliable Home Addition Contractor Across Lawndale
A home addition in Lawndale typically runs $180 – $420 per square foot, with a standard 400-square-foot bump-out landing between $72,000 and $168,000. We’re Lodgewick ADU Los Angeles, and our crew works Lawndale lots every week. The thing about building here that most contractors miss is the marine layer. Morning fog off the coast doesn’t just make your windows wet. It decides which fasteners, window frames, and sealants will actually survive on your addition more than a few seasons. Russ Delmar leads our team, and if you call (213) 698-7116, a live person answers. No voicemail loop. No chatbot. Just straight answers about your lot, your setbacks, and what the job should cost.
Why Lodgewick ADU Los Angeles Is Lawndale’s Preferred Home Addition Contractor Company

Lawndale homeowners call us because we answer the phone and we put the price in writing before a single nail goes in. That’s not a slogan. It’s the Kingswell Guarantee, and it means you get a written price, a defined arrival window, a clean job site, and a written guarantee on every project. If something isn’t done right within 365 days, we come back and make it right. Free. Russ Delmar has built this team around that promise since 2010.
Our crews know Lawndale’s building quirks because we’ve worked them. We know the 4-foot side and rear setbacks on those 5,000-square-foot lots near Hawthorne Boulevard. We know what the fire department requires on an alley-loaded garage conversion off Rosecrans. We know which window frames rot in two years and which ones don’t. That local knowledge means fewer surprises when your project hits the permit desk. And fewer change orders when the work starts.
Bedroom Addition Contractor in Lawndale
A bedroom addition contractor in Lawndale has to think about more than square footage. The city’s strict 4-foot side and rear setbacks mean you can’t just push out into your yard. You have to build up or convert what’s already there. On those postwar stucco bungalows, that usually means a second-story addition over the existing footprint, or converting an attached garage into living space.
Typical Bedroom Addition Scope in Lawndale
What we see most often: a 150 to 250-square-foot primary bedroom addition, often with a small bath, running $55,000 to $110,000 depending on whether you’re adding a foundation extension or building over the garage. Structural reinforcement matters here. Homes built between 1940 and 1970 weren’t engineered for the loads a second story adds. We’re reinforcing floor joists, opening walls, and often upgrading the foundation before the framing even starts.
The Coastal Moisture Factor
Lawndale’s morning fog is consistent. When we frame a bedroom addition, we spec hot-dip galvanized fasteners on every roof and wall connection. Standard galvanized fasteners rust through in this salt air within a decade. That means loose roof panels, leaks, and expensive repairs. The upgrade costs a few hundred dollars more at framing, and it saves thousands later.
Sunroom Addition in Lawndale

A sunroom addition in Lawndale has to be designed for marine-layer humidity, not just glass and light. The same morning fog that keeps Lawndale cool is what causes untreated wood frames to swell, stick, and grow mold. We spec aluminum or vinyl window frames, marine-grade sealants, and ventilation that actually moves air out. A three-season sunroom here runs $45,000 to $85,000 for an average 200-square-foot build.
Why Frames Fail Here So Fast
Untreated wood window frames in Lawndale fail fast. The humidity works into the grain, the sash swells, and you can’t open the window by year three. Mold follows. We’ve pulled apart sunroom window frames that looked fine from the outside and were rotten inside the wall. The cheap-spec sunroom looks fine for two years, then needs a rebuild. We’d rather build it right the first time.
Ventilation Is Not Optional
A Lawndale sunroom that doesn’t vent becomes a greenhouse full of moisture. We install active soffit and ridge ventilation, and when the addition ties into the existing roofline, we make sure the roof deck has spacers and a vapor barrier that stops condensation before it starts. That’s the difference between a room that smells fresh in July and one that smells like mildew by October.
Trusted Brands We Service in Lawndale
We work with established prefab and panelized brands that hold up well in Lawndale’s coastal climate. Dvele, Cover, and Mighty Buildings have options that ship with pre-finished facades and engineered panel systems, which helps when you’re dealing with a tight lot and a fast permit timeline. We also work extensively with James Hardie fiber-cement siding and trim because it doesn’t rot in the marine layer the way wood does. Parts and panel replacements for Lawndale customers get ordered immediately when we know the job, so there’s no waiting on a shipment that should have been ordered in week one.
Common Home Addition Contractor Problems We See in Lawndale Homes
- Rusted galvanized fasteners on rooftops and fences. Salt air and morning fog eat standard galvanization within 8 to 12 years. We’ve seen roof panels popping loose not because the work was bad, but because the hardware was underspecified for the climate.
- Swollen, rotted window frames from persistent humidity. The marine layer keeps moisture in wood frames. Sashes stick, jambs rot, and mold grows inside walls. We replace with non-wood frames or marine-grade treated wood on every exterior opening.
- Heaving unsealed paver joints. Lawndale patios and walkways with unsealed joints wick salty moisture, then heave and crack within a few seasons. We use polymeric sand and sealant rated for coastal conditions on every paver addition.
- Setback violations on garage conversions. Lawndale’s 4-foot side and rear setbacks trip up a lot of DIY ADU plans. If the existing garage sits closer than 4 feet to the property line, converting it means working with a variance or rebuilding the wall assembly. We navigate that with the city on nearly every alley-loaded garage job we do in Lawndale.
Pricing for Home Addition Contractor in Lawndale, CA
The coastal-spec and the inland-spec version of the same job don’t cost the same. Hot-dip galvanized fasteners, marine-grade window frames, sealed paver joints, and James Hardie facade products all run 8 to 15 percent more than the inland-spec equivalents. That’s the honest price gap. The cheap spec might save you $4,000 on a bedroom addition today, and cost you $18,000 in rot repairs, hardware replacement, and mold remediation within a decade. For an exact line-item quote on your lot, call (213) 698-7116. Estimates are free.
We Also Serve Cities Near Lawndale
Our crews handle additions in Manhattan Beach, Culver City, Los Angeles, and Venice. The rules and setback requirements shift a bit from city to city, but the material standards don’t. See our Home Addition Contractor team for the full scope of what we do, or check our Lawndale page for more on how we work in this city specifically.
Serving Lawndale, CA - Our Local Coverage Area
We’re based in the Lawndale 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 Home Addition Contractor in Lawndale
Lawndale requires 4-foot side and rear setbacks on new structures, and most existing detached garages sit right on the property line, so a garage conversion often can’t be a simple remodel. You’ll either keep the existing wall and add a fire-rated interior assembly, or you’ll rebuild the wall 4 feet in from the line. We handle both paths, and we’ve done plenty of each. Call (213) 698-7116 and we’ll tell you which applies to your lot.
Alley-loaded garages converted to ADUs must have a one-hour fire-rated wall on the alley-facing side if the structure is within 5 feet of the property line, and the fire department needs clear access down that alley. That usually means rebuilding the alley-facing facade with fire-rated sheathing and a rated door. We did exactly that on a 1948 bungalow near Rosecrans. It’s standard work for us in Lawndale.
We specify hot-dip galvanized fasteners, not electro-galvanized. Electro-galvanized coating is thin and fails fast in Lawndale’s marine layer. Hot-dip coating is several times thicker and holds up for decades. The cost difference is small. The durability difference is enormous. For an exact spec and written quote, call (213) 698-7116.
The marine layer keeps exterior wood damp for hours every morning, and Lawndale’s mild temperatures mean it never fully bakes out. Untreated wood frames stay wet, swell, and rot from the inside. We spec aluminum, vinyl, or marine-treated wood with stainless hardware on every exterior opening. It’s a small line item that prevents a big repair.
Yes. We use polymeric sand with a sealant rated for coastal moisture, not plain sand. Plain sand washes out and wicks salty water into the paver joints, which leads to heaving and cracking within a few seasons. The sealed joint also resists weeds better. Call (213) 698-7116 for a free estimate on any paver patio, walkway, or hardscape tied to your addition.
Written by Russ Delmar, Owner at Lodgewick ADU Los Angeles, serving Lawndale since 2010.









