ADU Company in Rancho Palos Verdes, CA
Rancho Palos Verdes sits atop one of the most active landslide zones in the continental U.S. That single fact shapes every accessory dwelling unit we quote here. Homes on the Palos Verdes Peninsula were largely built between the 1960s and 1980s, mostly large-lot ranches and split-levels cut into hillside terrain. Many have garages or lower-grade bonus rooms partially below street level. Those are prime ADU conversion candidates, but they demand drainage, waterproofing, and egress planning that flatland projects never face. We are Lodgewick ADU Builders, and every Rancho Palos Verdes job starts with a written price and a written guarantee. Call (254) 602-5618 to talk through your property.
Why Rancho Palos Verdes Homes Are Different
Rancho Palos Verdes homes are different because the ground they sit on moves. The city’s Landslide Moratorium Area covers large swaths of Portuguese Bend, Abalone Cove, and the surrounding zones, and it can outright prohibit new ADU construction on affected parcels. We check the Geological Hazard Overlay before we quote, because a contractor who skips that step is promising a timeline they cannot keep. Even outside the moratorium, the city mandates geotechnical and soils review for hillside ADU projects. That adds weeks of review and thousands in engineering costs a comparable Torrance or Carson project would never see.
Then there is the marine layer. Salt-laden air off the Pacific accelerates corrosion on fasteners, flashing, and exposed metal. Detached ADUs in Rancho Palos Verdes need marine-grade materials that inland Los Angeles jobs do not require. The dramatic lot grades also funnel stormwater in unpredictable ways, which makes ADU placement and grading plan approval a site-specific engineering exercise. Nearly every hillside project we touch needs a licensed engineering geologist sign-off before the permit application is accepted. It is not a hurdle to work around. It is the work.
Our Main Rancho Palos Verdes Services
Homeowners in Rancho Palos Verdes call us most about three things: adding square footage to an existing house, converting a garage into living space, and building a detached ADU from the ground up. Here is how each one works here.
Home Addition Contractor in Rancho Palos Verdes
A home addition in Rancho Palos Verdes usually means extending a split-level’s lower floor or adding a master suite above a garage. On sloped lots, the foundation work is the wildcard: caissons, retaining walls, and drainage get engineered differently than they would on flat ground. Marine-layer moisture also affects framing choices, because lumber that absorbs coastal humidity can move after installation if it was not acclimated. We give a written price before any work starts and a written guarantee on the full addition. Home Addition Contractor in Rancho Palos Verdes

Garage Conversion Contractor in Rancho Palos Verdes
Rancho Palos Verdes has hundreds of attached garages and below-street-level bonus rooms built into hillsides. Those lower-grade spaces convert well, but they need waterproofing and proper egress planned from the start. A garage conversion here is rarely as simple as framing a wall and adding flooring. Slope drainage, retaining wall clearance, and marine-grade flashing all factor into the written price we hand you before we begin. Garage Conversion Contractor in Rancho Palos Verdes

ADU Builders in Rancho Palos Verdes
Building a detached ADU in Rancho Palos Verdes starts with a geotechnical check, not a sketch. The city’s landslide review layers can kill a project on a flagged parcel, and even clean lots often need a licensed engineering geologist involved. We work with prefab manufacturers like Abodu and Cover when the lot and geology support factory-built units, because prefab can cut on-site framing time on difficult terrain. The Kingswell Guarantee applies to every ADU: written price first, defined arrival window, clean job site, written guarantee. 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 work hands-on with prefab and panelized systems that fit Rancho Palos Verdes hillside lots, including our brands Abodu, Cover, and Dvele. Coastal conditions mean we stock marine-grade fasteners and flashing locally, so a hardware run does not stall your schedule.
Pricing for ADU Company in Rancho Palos Verdes, CA
| Service | Typical range in Rancho Palos Verdes |
|---|---|
| Detached ADU (full build, turnkey) | $280,000 – $420,000 |
| Attached ADU (addition-style conversion) | $190,000 – $310,000 |
| Garage conversion to ADU | $145,000 – $230,000 |
| Junior ADU (JADU) conversion | $95,000 – $155,000 |
| Prefab ADU (factory-built, site-installed) | $210,000 – $340,000 |
| Excavation and retaining wall work | $28,000 – $85,000 |
| Utility trenching (water, sewer, electrical) | $12,000 – $32,000 |
| Stormwater drainage and grading plan | $7,500 – $22,000 |
| Coastal moisture protection (marine-grade flashing and coatings) | $4,500 – $14,000 |
Two things push Rancho Palos Verdes prices beyond flatland numbers: geotechnical review and slope work. Both are non-negotiable here, and we include them in the written price before any work starts. No change-order surprises later.
Neighborhoods We Serve in Rancho Palos Verdes
We work throughout the Palos Verdes Peninsula, from the landslide-adjacent parcels around Portuguese Bend to the flatter inland pockets near the city’s eastern edge. Crews typically arrive within a defined window we give you in writing, not an open-ended “sometime this week.”
- Portuguese Bend
- Abalone Cove
- Mira Catalina
- Miraleste
- Rancho Palos Verdes Estates
Service Area – Cities Near Rancho Palos Verdes
Lodgewick ADU Builders serves Rancho Palos Verdes and the surrounding South Bay and Harbor-area communities. If your property is in Lomita, CA, Lakewood, CA, Redondo Beach, CA, or Torrance, CA, we can help with ADUs, garage conversions, and home additions there too. Scheduling is coordinated from our Los Angeles office; crews serve Rancho Palos Verdes locally.
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
Possibly not, and that is the honest answer. The city’s Landslide Moratorium Area can outright prohibit new ADU construction on affected parcels in Portuguese Bend and Abalone Cove. We run a Geological Hazard Overlay check before quoting anything, so you are not paying for engineering on a project the city will not accept. Call (254) 602-5618 for a free estimate.
Geotechnical and soils review typically adds two to six weeks beyond what a flatland city would require, depending on whether your parcel is flagged within the Portuguese Bend Landslide Complex. We handle the permit submission and the engineering geologist sign-off. The written price we give you includes all of it. Call (254) 602-5618 to get started.
No. The estimate is free. We come out, look at your lot, check the geological overlay status, and hand you a written price with a written guarantee. If the numbers do not work for you, you owe nothing. Call (254) 602-5618 to schedule that visit.
Rancho Palos Verdes is a challenging place to build, and that is exactly why a written price and a written guarantee matter here more than most places. If you are weighing an ADU, a garage conversion, or a home addition, call (254) 602-5618 for a free estimate. Russ Delmar and the Lodgewick team will walk you through what your specific lot can support, what it will cost, and what happens if anything is not done right.
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 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"The ADU came out beautiful and the permitting, which terrified me, was handled start to finish. They kept me updated every week so I was never wondering what was happening."
- Shauna Mills"A whole backyard ADU from scratch. Terrified me going in, but they kept me updated weekly and there were no nasty surprises. Quality work and a fair price."
- Noreen Fletcher