ADU Company in Hermosa Beach, CA
We’re Lodgewick ADU Builders, the ADU company of the Kingswell family. Hermosa Beach is a different animal from the rest of the South Bay. Its original beach-town plat created some of the narrowest residential lots in the region, many just 25 to 30 feet wide, and nearly every accessory dwelling unit here ends up as an alley-accessed garage conversion or a tight infill build engineered around rear and side setbacks on a micro-parcel. That’s not a problem, it’s just the job. We put a written price in front of you before any work starts, every time. Call (254) 602-5618 to talk through your lot.
Why Hermosa Beach Homes Are Different
Hermosa Beach sits directly on the coast, and the marine layer does not take days off. Salt-laden air corrodes standard framing hardware, electrical fixtures, and HVAC components faster here than a few miles inland. Any ADU built in Hermosa Beach should use corrosion-rated fasteners and finishes that a contractor working in Lawndale or El Segundo might skip without consequence. Skipping them here means warranty callbacks and rust streaks by year two.
The housing stock compounds it. Most homes in the core of Hermosa Beach are 1920s through 1950s beach bungalows on 25 by 90 foot lots, many with detached garages opening onto the rear alley. Foundations, electrical panels, and sewer laterals vary block to block because of postwar and 1960s rebuild layers. One house might have a 100-amp panel and cast-iron lateral; the one next door was rewired in 1998 and has a clean ABS line to the street. We plan for that variance on every Hermosa Beach job. Much of the city also falls within California’s Coastal Zone, which can add a Coastal Development Permit to the stack. We handle that paperwork, but it’s one more reason a Hermosa Beach timeline looks different from an inland one.
Our Main Hermosa Beach Services
Most Hermosa Beach homeowners reach out for one of three jobs: a home addition that respects a very tight lot, a garage conversion that turns an aging alley-facing structure into livable space, or a new standalone ADU in whatever sliver of buildable yard remains. Each is linked below.
Home Addition Contractor in Hermosa Beach
Home additions here are a study in discipline. A 25-foot-wide lot does not forgive sloppy setbacks, so every inch of plan matters before the first footing goes in. We’ve found that additions on east-west lots in Hermosa Beach need early conversations with the city’s small building department about sight lines and parking replacement, especially when the addition affects an existing alley-facing garage. The goal is square footage that actually gets approved and built, not a rendering that dies at plan check. Home Addition Contractor in Hermosa Beach
Garage Conversion Contractor in Hermosa Beach
Garage conversions in Hermosa Beach are our most common job, and for good reason. Many of these detached garages already open to the alley and sit on old slabs that may need structural attention before walls go up. The City of Hermosa Beach expects converted garages to address parking replacement rules properly, which is a paperwork step contractors unfamiliar with the city routinely flub. We don’t. If your garage is a candidate, we’ll tell you what it’ll cost in writing before you commit to anything. Garage Conversion Contractor in Hermosa Beach
ADU Builders in Hermosa Beach
A new standalone ADU on a Hermosa Beach lot usually means building on the rear third of the parcel, often accessed from the alley. Coastal Zone rules, salt-air material specs, and a city building department with strong opinions about alley-facing structures all shape the design. We work with prefab manufacturers including Abodu, Cover, and Dvele where they fit the lot, and we spec James Hardie siding products that hold up against the marine layer. Hermosa Beach is one of the hardest ADU markets to permit well in the South Bay. That’s the work we do. ADU Builders in Hermosa Beach
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 Hermosa Beach
We spec and install ADU systems from Abodu, Cover, and Dvele when the lot and budget line up, and we use James Hardie siding and trim on most Hermosa Beach exterior work because it handles the salt air better than most alternatives. See our brands for the full list we work with daily.
Pricing for ADU Company in Hermosa Beach, CA
| Service | Typical range in Hermosa Beach |
|---|---|
| Garage conversion to ADU | $140,000 – $220,000 |
| Detached new ADU (permits, site work, build) | $210,000 – $380,000 |
| Attached home addition | $175,000 – $325,000 |
| JADU within existing footprint | $80,000 – $150,000 |
| Prefab ADU (unit only, delivered and set) | $90,000 – $250,000 |
| Plans and engineering only | $8,000 – $18,000 |
| Foundation and site work | $25,000 – $60,000 |
| Electrical panel upgrade | $3,500 – $7,500 |
| Sewer lateral replacement | $6,000 – $15,000 |
| Coastal Development Permit assistance | $3,000 – $8,000 |
In Hermosa Beach, two things push a price up faster than anywhere else in the South Bay. One is the Coastal Development Permit path, which adds review time and agency fees. The other is the condition of what’s underneath: a 1930s garage slab that needs replacement, a 60-amp panel that can’t carry an ADU, or a cast-iron sewer lateral that’s already failing. Our written price is what you pay. If the scope changes, the new price is in writing before the new work starts.
Neighborhoods We Serve in Hermosa Beach
We work the entire city, which at 1.4 square miles means every street is close. Typical response for an estimate visit runs a few business days depending on our current Hermosa Beach schedule.
- Hermosa Sand Section
- East Hermosa
- Hermosa Valley
- North Hermosa
- Hermosa Hills
Service Area – Cities Near Hermosa Beach
We serve Hermosa Beach as our home base, and we also take on ADU, garage conversion, and addition work in neighboring South Bay cities. If your property is in Manhattan Beach, CA, Redondo Beach, CA, Lawndale, CA, or El Segundo, CA, the same written-price-first Kingswell Guarantee applies. Call our dispatch line and a live person answers, 24/7.
Serving Hermosa Beach, CA - Our Local Coverage Area
We’re based in the Hermosa 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 Hermosa Beach
We schedule estimate visits in Hermosa Beach on a rolling basis, typically within a few business days of your call. Since Hermosa Beach is only 1.4 square miles, our crews are always close once a project starts. Call (254) 602-5618 to lock in a date.
Yes. If your Hermosa Beach lot falls within the Coastal Zone, we prepare the Coastal Development Permit application alongside the city permit package, and we track both through approval. Budget $3,000 to $8,000 for the Coastal Commission piece depending on scope.
Yes. Hermosa Beach has relatively few HOAs compared to larger coastal cities, but when one exists we review its architectural guidelines before finalizing plans. We won’t submit a design that your HOA is likely to reject because we read the deed restrictions first.
Ready to see a number in writing? Call Lodgewick ADU Builders at (254) 602-5618 for a free estimate on your Hermosa Beach ADU, garage conversion, or home addition. Russ Delmar and the Hermosa Beach team answer live, and you’ll have a written price before any work begins. The Kingswell Guarantee applies, every time, in writing.
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 Hermosa Beach Customers Say
"I was nervous about adding on but they walked me through every step and every cost before we started. No surprise change orders halfway through like I'd heard horror stories about."
- Eleanor Pratt"Junior ADU conversion inside the house. They protected the rest of our place with plastic and daily cleanup. Done nearly on schedule and on the number they quoted."
- Sabrina Veld"Garage conversion into an office and guest room. Fair written price, finished close to on schedule, and they fixed a small drywall crack under warranty months later without any hassle."
- Diana Cho