A free site visit, a check of what your lot allows and a written, line-item price.
Get your free estimateADU Company in Westwood, CA
Fielding ADU Builders handles accessory dwelling units, garage conversions, and room additions across Westwood. The work here leans heavily on older homes: 1920s Spanish Colonial Revival cottages, 1950s ranch houses, and hillside lots that slope into the Santa Monica Mountains. That means permits, setbacks, shoring, and drainage get more attention in Westwood than they would on a flat inland lot. If you’re planning an ADU or addition in Westwood, call (213) 732-1415 for a written price before any work starts.
Why Westwood Homes Are Different
Westwood’s housing stock is largely 1920s through 1950s single-family homes. Many are Spanish Colonial Revival or ranch style, built on smaller lots with mature trees that have had nearly a century to spread. Mature landscaping complicates ADU placement: a protected oak or a 40-year-old magnolia can shift a build envelope several feet, and the city’s design review board near UCLA keeps a close watch on anything that alters the leafy, single-family character of the streets north of Wilshire.
Hillside construction is the other constant. Many Westwood ADU projects involve tucking a unit under an existing house on a downslope lot, which means shoring, retaining walls, and drainage work that flat-lot builders rarely touch. The loose, sloping soils in the Santa Monica Mountain foothills require engineered footings and careful water management. We plan for that on day one, not when the excavation starts.
The climate works in a homeowner’s favor. Westwood’s coastal-influenced air means cool mornings and warm afternoons, so ADUs here don’t need oversized HVAC. What they do need is indoor-outdoor flow: patios, large windows, and door placement that makes a 500-square-foot unit feel connected to the yard.
Our Main Westwood Services
Most Westwood homeowners reach out to us about one of three things: adding a room, converting a garage, or building a freestanding ADU. Each has its own dedicated Westwood page with pricing and process details.
Room Addition Contractor in Westwood
A room addition in Westwood usually means extending a 1920s or 1950s home without disturbing its original character. That often requires matching stucco texture, roof pitch, and window proportions on a house that has settled over eight or nine decades. We pull permits, match the existing envelope, and write the price down before demolition starts. Room Addition Contractor in Westwood
Garage Conversion Contractor in Westwood
Westwood garages from the 1940s and 1950s are often detached, narrow, and built on slabs that were never meant to become living space. Converting one means raising the floor, insulating, running new electrical, and sometimes addressing a hillside retaining wall that sits too close. We handle the whole conversion by the book, permits included, with the price fixed in writing. Garage Conversion Contractor in Westwood
ADU Builders in Westwood
Freestanding and attached ADUs in Westwood have to clear higher hurdles than most L.A. neighborhoods: hillside review, design board input near UCLA, and lot coverage limits on small parcels. We build conventional ADUs with James Hardie siding and also work with prefab platforms like Abodu, Cover, and Dvele when the lot and budget suit factory-built construction. ADU Builders in Westwood
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 Westwood
We work across conventional and prefab builds. That includes James Hardie siding on stick-built ADUs and factory-built units from Abodu, Cover, and Dvele. Our Los Angeles office coordinates scheduling and dispatch for Westwood jobs, and we keep common parts and finishes in local supply channels so wait times stay short. See our brands for the full list.
Pricing for ADU Company in Westwood, CA
| Service | Typical range in Westwood |
|---|---|
| Room addition (primary suite) | $120,000 – $180,000 |
| Room addition (family room) | $90,000 – $150,000 |
| Garage conversion (attached, 400 sq ft) | $80,000 – $120,000 |
| Garage conversion (detached, 400 sq ft) | $95,000 – $140,000 |
| ADU (garage conversion, 400 sq ft) | $110,000 – $160,000 |
| ADU (attached, 600 sq ft) | $180,000 – $250,000 |
| ADU (detached, 600 sq ft) | $200,000 – $280,000 |
| ADU (detached, 800 sq ft) | $260,000 – $350,000 |
| ADU (attached, 800 sq ft) | $240,000 – $320,000 |
| Prefab ADU (600 sq ft, Abodu/Cover/Dvele) | $220,000 – $300,000 |
Hillside conditions push numbers up in Westwood. Steep lots require engineered shoring, retaining walls, and sometimes additional drainage that flat-lot builds never encounter. Design review near UCLA can also add weeks to the approval timeline. What doesn’t change is the number on your written estimate: the price we put in writing before any work starts is the price on the final invoice.
Neighborhoods We Serve in Westwood
We work across Westwood’s residential pockets, from the flats near Wilshire to the hillside streets climbing toward the Santa Monica Mountains. Typical response time for a Westwood estimate visit runs one to three business days depending on scheduling volume.
- Westwood Hills
- Holmby Hills
- North Westwood Village
- Westwood Charter
- Little Holmby
Service Area – Cities Near Westwood
Fielding ADU Builders serves Westwood and the surrounding communities. If your property sits just outside the neighborhood line, we may still be able to help. We regularly work in West Hollywood, CA, Beverly Hills, CA, Culver City, CA, and Los Angeles, CA.
Serving Westwood, CA - Our Local Coverage Area
We’re based in the Westwood 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 Westwood
Most Westwood estimate visits are scheduled within one to three business days. Call (213) 732-1415 and a live person answers, day or night. We’ll book a walkthrough at the property, review the lot conditions, and hand you a written price before leaving.
Many do. Hillside construction regulations apply to a large share of Westwood lots, and projects within the UCLA-adjacent design review area may need additional community character review. We handle every permit and inspection as part of the job, and we don’t start work until the board is posted.
Usually yes. Sloping lots require shoring, retaining walls, and drainage work that a flat lot doesn’t. That’s built into your written estimate upfront, not added as a surprise change order after excavation begins. Call (213) 732-1415 to schedule a free estimate and we’ll put the full number 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 Westwood Customers Say
"Good addition. Electrical inspection delayed a week, which was the county, but the build is great."
- Eva K."Clear price breakdown. Change orders were all in writing."
- Hal P."Built a detached ADU behind our house. The builder is a veteran and runs the site like a platoon: schedule posted, crew on time, everything labeled. Finished within a few days of the date."
- Ken W.
