







A free site visit, a check of what your lot allows and a written, line-item price.
Get your free estimateADU Company in Rancho Palos Verdes, CA
Fielding ADU Builders handles ADU construction, garage conversions, and room additions in Rancho Palos Verdes, CA. Most homes here were built on hillside lots with steep grades, ocean-facing setbacks, and soil conditions that make foundation work the single biggest variable on any project. We put every price in writing before any work starts, pull permits for the job, and back the finished build with a written one-year guarantee. Call (361) 315-4177 to talk through what you’re planning.
Why Rancho Palos Verdes Homes Are Different

Rancho Palos Verdes is a hillside city sitting on the Palos Verdes Peninsula, and the terrain drives almost every decision on a construction project here. Many lots slope, some severely. That means retaining walls, stepped foundations, and drainage planning are common before a single wall goes up. The marine layer off the Pacific keeps moisture levels higher than inland communities, so exterior materials need to be chosen with salt air and fog in mind. Homes in neighborhoods like Mira Catalina, Miraleste, and the areas around Crenshaw Boulevard and Hawthorne Boulevard range from 1950s ranch-style houses to larger 1980s and 1990s builds, and the older stock often has outdated footings that need evaluation before an addition can be drawn.
The city also enforces hillside grading ordinances and view-protection rules that affect rooflines and second-story additions. A room addition that seems straightforward on flat land can require additional grading review here. We plan for that from the first site walk, not after the permit office flags it.
Our Main Rancho Palos Verdes Services
Most homeowners in Rancho Palos Verdes call us about one of three things: adding a room, converting a garage into living space, or building a detached ADU in the backyard. Each has its own page below with local specifics.
Room Addition Contractor in Rancho Palos Verdes
Room additions in Rancho Palos Verdes usually mean expanding into a hillside with pier-and-grade-beam foundations rather than a standard slab. We handle the grading, drainage, and setback questions that come with sloping lots, and we price the written quote to include the site work, not surprise you with a change order later. View corridors matter here, and the city will review height and massing, so we draw conservatively from the start. Room Addition Contractor in Rancho Palos Verdes covers the full walkthrough.

Garage Conversion Contractor in Rancho Palos Verdes
Older homes in Rancho Palos Verdes often have attached garages that can convert well because the slab and framing are already there. The main challenges are bringing the space up to current code for insulation, electrical, and egress, and working around any slope-related drainage that sends water toward the garage apron. We pull the permit, handle the energy calcs, and write the price before demolition starts. See Garage Conversion Contractor in Rancho Palos Verdes for the full scope.

ADU Builders in Rancho Palos Verdes
A detached ADU on a hillside lot in Rancho Palos Verdes typically needs a stepped or raised foundation and may need a retaining wall, which is a real cost driver here. We work with prefab platforms like Abodu, Cover, and Mighty Buildings where the lot allows for a crane or panel delivery, and we do conventional stick-built work when access is tighter. Every ADU gets a written price up front and a one-year written guarantee. Full details on ADU Builders in Rancho Palos Verdes.

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 Rancho Palos Verdes
We’re fluent with leading prefab and modular ADU platforms including Abodu, Cover, and Dvele, plus conventional builds using James Hardie siding. Working with these systems already in place means lead times are more predictable, and if you’re comparing prefab against stick-built, we can walk you through both. See our brands for more on the specific platforms we work with.
Pricing for ADU Company in Rancho Palos Verdes, CA
| Service | Typical range in Rancho Palos Verdes |
|---|---|
| Detached ADU, prefab or panelized | $180,000 – $320,000 |
| Detached ADU, conventional build | $220,000 – $400,000+ |
| Garage conversion, attached | $80,000 – $160,000 |
| Garage conversion, detached | $100,000 – $200,000 |
| Room addition, single room | $70,000 – $150,000 |
| Larger multi-room addition | $150,000 – $350,000+ |
| Retaining wall required on hillside lot | $15,000 – $60,000 added to budget |
| Foundation, pier-and-grade-beam for sloped lot | $25,000 – $80,000 added to budget |
Slope is the biggest price mover in Rancho Palos Verdes. A flat-lot ADU is one number; a hillside lot that needs retaining work, drainage, and a stepped foundation is another. Whatever the site conditions, the price we give you in writing before work starts is the price on the final invoice – that’s the Garrison Standard, and it doesn’t change at the door.
Neighborhoods We Serve in Rancho Palos Verdes
We work across the full Rancho Palos Verdes footprint, from the coastal side near Abalone Cove and Portuguese Bend to the inland neighborhoods around Silver Spur and Crest. Most estimates are scheduled within a few business days of your call.
- Mira Catalina
- Miraleste
- Crest
- Silver Spur
- Eastview
Service Area – Cities Near Rancho Palos Verdes
Our crews serve Rancho Palos Verdes and the surrounding South Bay communities. If you’re in Lomita, CA, Torrance, CA, Redondo Beach, CA, or Lakewood, CA, we can schedule an estimate the same week. Dispatch and scheduling are coordinated from our Los Angeles office; the crew that arrives on your street is local.
Serving Rancho Palos Verdes, CA - Our Local Coverage Area
We’re based in the Rancho Palos Verdes 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 Rancho Palos Verdes

We can usually have someone out for a site walk and estimate within a few business days of your call. Permitting and plan review with the city then runs on its own schedule, and we manage that entire process for you.
If your neighborhood has an HOA, yes, they can impose design restrictions on top of city code, especially around exterior finishes and rooflines. We review the HOA’s CC&Rs before we finalize drawings so you aren’t paying for revisions later. Call (361) 315-4177 to discuss your specific street.
No. The number you approve in writing before work begins is the number on the final invoice. The only exceptions are if you change the scope or we uncover a condition that was hidden and you approve additional work in writing first. Estimates are free – call (361) 315-4177 to schedule one.
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 Rancho Palos Verdes Customers Say
"Garage conversion with a new bath and kitchenette. Permit was handled by them. Inspection passed first time."
- Sheila B."Honest feedback on what the lot could fit. Told me up front what would fit on the lot and what the setbacks would allow."
- Rita C."Clear price breakdown. Change orders were all in writing."
- Hal P.



