







A free site visit, a check of what your lot allows and a written, line-item price.
Get your free estimateADU Company in Imperial Beach, CA
An ADU in Imperial Beach, CA is a second, smaller home built on the same lot as your main house – and around here, that usually means working with coastal fog, sandy soil, compact lots, and homes from the 1950s and 1960s. Lodgewick ADU San Diego coordinates scheduling from our San Diego office, with crews that serve Imperial Beach directly. Russ Delmar leads the team, and every project starts the same way: a written price before any work begins. Call (619) 376-2760 for a free estimate.
Why Imperial Beach Homes Are Different

Imperial Beach sits between the Pacific Ocean and the Tijuana River Valley, and that geography shapes nearly every build we take on. The marine layer means moisture is a constant – we see it in sill plates, stucco, and older framing around the South Bay Biological Preserve and down toward Playas de Tijuana Secc Monumental. Homes here trend small, which is exactly why homeowners look at garage conversions and backyard units: the lot is often the only place left to grow.
Coastal regulations matter in Imperial Beach, CA. The California Coastal Commission has jurisdiction over much of the city, so an accessory dwelling unit that sails through in National City can require extra review here. Setbacks, height limits, and flood-zone requirements near the Tijuana River Valley Regional Park all shift what’s buildable from one block to the next. We account for that up front, in the written scope, not after the concrete is poured.
We also pay attention to how the neighborhoods are laid out. Alleys are common in older sections of Imperial Beach, which changes how crews stage materials and where a detached ADU can sit. In tighter pockets around Montgomery Waller Recreation Center, lot coverage limits mean a detached unit has to be designed carefully – or a garage conversion becomes the smarter play.
Our Main Imperial Beach Services
The three jobs Imperial Beach homeowners ask about most are home additions, garage conversions, and full ADU builds. Each has its own dedicated Imperial Beach page with local pricing and specifics.
Home Addition Contractor in Imperial Beach
Adding square footage to a home in Imperial Beach means matching rooflines, stucco, and floor heights that have settled for sixty years. Coastal moisture makes proper flashing and ventilation details more important here than inland, and some lots in zones near the Tijuana River Valley need elevation checks before we submit plans. We handle the full permit package and build, with a written price before demolition starts. See Home Addition Contractor in Imperial Beach for local cost ranges and timelines.

Garage Conversion Contractor in Imperial Beach
A garage conversion in Imperial Beach is often the fastest path to a rentable or family-ready unit, because the shell already exists. What varies here is the condition of that shell: older garages near Playas de Tijuana Secc Rivera often have slab issues and no insulation, which changes both scope and price. We quote the conversion first, not the surprises after. Read the specifics at Garage Conversion Contractor in Imperial Beach.

ADU Builders in Imperial Beach
Building a detached accessory dwelling unit in a backyard in Imperial Beach means navigating coastal setbacks, soil bearing, and utility runs that can get long on deep lots near the reserve. We work with prefab manufacturers to shorten timelines where the lot allows, and stick-build where access is tight. Every build gets the 365-Day Done Right Promise in writing. Full details at ADU Builders in Imperial 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 Imperial Beach
We work regularly with James Hardie siding and trim, which holds up well in the coastal air Imperial Beach gets year-round. We also install Tuff Shed structures as ADU shells where the lot and zoning allow, and Boxabl units where access works. See our brands for the full list of what we match to each project.
Pricing for ADU Company in Imperial Beach, CA
| Service | Typical range in Imperial Beach |
|---|---|
| Attached ADU (small, prefab) | $120,000 – $180,000 |
| Detached ADU (stick-built, 1-bed) | $180,000 – $260,000 |
| Detached ADU (2-bed) | $260,000 – $380,000 |
| Garage conversion (1-bed) | $110,000 – $170,000 |
| Garage conversion (2-bed) | $160,000 – $240,000 |
| JADU (internal conversion) | $80,000 – $130,000 |
| Prefab ADU (Boxabl / Plant Prefab shell) | $140,000 – $310,000 |
| Home addition (primary suite) | $150,000 – $260,000 |
| Home addition (family room, 400 sq ft) | $180,000 – $320,000 |
| Foundation / site work (sloped or sandy lot) | $15,000 – $45,000 |
Prices in Imperial Beach push higher with coastal commission review, flood-zone engineering, and older home retrofits. What doesn’t change is that the price we give you in writing before work starts is the price you pay – no change orders snuck in at the door.
Neighborhoods We Serve in Imperial Beach

We run crews through every part of Imperial Beach, CA on a regular schedule:
- Playas de Tijuana Secc Jardines del Sol
- Playas de Tijuana Secc Monumental
- Playas de Tijuana Secc Rivera
- Castle Park
Most Imperial Beach estimates happen within a few business days of the call, and we schedule builds in the order the signed scopes come back.
Service Area – Cities Near Imperial Beach
From our San Diego office, we coordinate ADU and addition work across the South Bay. In addition to Imperial Beach, we serve Chula Vista, CA, National City, CA, Coronado, CA, and Bonita, CA. Each city has its own permit quirks, and we know how they differ from Imperial Beach’s coastal requirements.
Serving Imperial Beach, CA - Our Local Coverage Area
We’re based in the Imperial 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 Imperial Beach

After the written estimate is signed, the next step is a site visit to confirm lot conditions, utilities, and coastal-zone requirements. Plan on design and permit approval taking several weeks to a few months depending on Coastal Commission involvement. Call (619) 376-2760 and we’ll walk through what your specific lot is likely to face.
Yes, in most of Imperial Beach the California Coastal Commission reviews projects before a building permit can be issued. That adds time and design constraints that don’t apply inland. We account for that in the written timeline and price estimate from the start.
We prepare and submit the full permit package, including coastal review documents, and we coordinate inspections through to final sign-off. The written guarantee covers the build, and if anything isn’t right within 365 days, we come back and fix it. Call (619) 376-2760 for a free estimate.
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 Imperial Beach Customers Say
"Detached unit in the backyard for rental income. They handled design and permits and gave me a real schedule. Came in close to on time and exactly on the written price."
- Benjamin Stahl"Built a backyard unit for my mother in law. They handled the permits, gave me a real timeline, and stuck to it within a few days. The written price is what we paid, which anyone who's done construction knows is rare."
- Dennis Fairchild"Quality work on a home addition. It did run a few weeks longer than the original estimate, mostly waiting on the city for inspections, which they explained. The build itself was done right."
- Marcus Delgado





