A free site visit, a check of what your lot allows and a written, line-item price.
Get your free estimateADU Company in Anaheim Hills, CA
Fielding ADU Builders builds accessory dwelling units, garage conversions, and room additions across Anaheim Hills, CA. Most Anaheim Hills homes sit on hillside lots with grading, retaining walls, and HOA design rules that change how a project gets permitted and built. We put the price in writing before any work starts, and every project carries a one-year written guarantee. Call (361) 315-4177 to talk through your lot and what the city will require.
Why Anaheim Hills Homes Are Different
Anaheim Hills is not flat tract housing. Large parts of the community climb through canyons and ridgelines east of the 55 and north of the 91, which means slopes, drainage setbacks, and older retaining walls show up on ADU and addition sites more often than they do in the flatlands below. A detached ADU behind a home on a hillside lot often needs a soils report and a grading plan before the city will stamp the permit. That is normal for Anaheim Hills, and it is a cost item homeowners should expect, not a surprise.
Much of the housing stock dates from the 1970s through the 1990s. Many homes sit in HOA-governed communities, including areas near Eastridge and the gated neighborhoods above Santa Ana Canyon Road. HOAs in Anaheim Hills routinely review exterior elevations, rooflines, and materials before the city does, so ADU and room addition plans often need two approvals, not one. Our Anaheim Hills clients also deal with warm inland summers and cool canyon nights, which shapes insulation, glazing, and HVAC sizing on any new conditioned space. We build to the city’s current energy code rather than the minimum that passed when the house was first framed.
Our Main Anaheim Hills Services
Anaheim Hills homeowners come to us most often for three jobs: converting an attached garage, adding a bedroom or family room to the existing footprint, and building a backyard ADU, either conventional or prefab. Each has its own Anaheim Hills page with local pricing and permitting detail.
Room Addition Contractor in Anaheim Hills
Adding square footage in Anaheim Hills usually means working with a hillside lot, an older foundation, and a roofline that a designer has to tie into without making the house look stitched together. We handle the structural engineering, the permit set, and the build, from foundation through drywall and paint. See Room Addition Contractor in Anaheim Hills for typical square-foot pricing and what a hillside addition realistically costs.
Garage Conversion Contractor in Anaheim Hills
Most garages in Anaheim Hills were built in the 1980s and 1990s, so floors, door openings, and electrical panels often need work before the space becomes livable. Some HOAs will not approve a garage conversion unless you add off-street parking elsewhere, and the city checks that as part of the permit review. See Garage Conversion Contractor in Anaheim Hills for local costs and the parking requirements that apply to attached and detached garages.
ADU Builders in Anaheim Hills
Backyard ADUs in Anaheim Hills range from detached one-bedroom units to garage-top additions, and the lot usually decides which one makes sense before the budget does. We work with several prefab platforms where the hillside allows a crane or panel delivery, and we also build conventional ADUs when access, setbacks, or HOA rules point that way. See ADU Builders in Anaheim Hills for pricing ranges and how the prefab-versus-conventional choice plays out on Anaheim Hills lots.
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 Anaheim Hills
We install and finish ADUs from Abodu and Cover, and we have completed Anaheim Hills projects using Dvele panels where the lot made panelized delivery the faster option. We also build conventional ADUs with James Hardie siding and Tuff Shed-style structures where budget or access points that direction. Learn more on our brands page.
Pricing for ADU Company in Anaheim Hills, CA
These are typical ranges for Anaheim Hills, before permit fees and any site-specific grading or retaining work. The table below gives you a starting point; the written estimate we hand you before work starts is the number that matters.
| Service | Typical range in Anaheim Hills |
|---|---|
| Detached ADU (prefab, 400 – 600 sq ft) | $180,000 – $260,000 |
| Detached ADU (conventional build) | $260,000 – $380,000 |
| Attached ADU / junior ADU | $140,000 – $210,000 |
| Garage conversion to ADU | $110,000 – $180,000 |
| Garage-top ADU (above existing garage) | $240,000 – $330,000 |
| Room addition (400 – 600 sq ft) | $180,000 – $300,000 |
| Primary suite addition | $150,000 – $230,000 |
| Second-story addition | $280,000 – $420,000 |
What pushes a number up in Anaheim Hills is the land, not the structure: slope work, retaining walls, longer utility runs, and HOA-required exterior changes all add cost before the first wall goes up. We quote those items in writing, line by line, so the price you approve on day one is the price you pay at the end.
Neighborhoods We Serve in Anaheim Hills
We work throughout Anaheim Hills, from the canyon-facing streets near Deer Canyon and Peralta Hills down to the neighborhoods along Santa Ana Canyon Road and Weir Canyon Road. Response time for an initial site visit in Anaheim Hills is usually within a few business days, depending on our current permit queue.
- Eastridge
- Peralta Hills
- Deer Canyon
- Summit Pointe
- Anaheim Hills Estates
Service Area – Cities Near Anaheim Hills
Fielding ADU Builders coordinates Anaheim Hills work from our Los Angeles office, with local crews serving the community directly. If your property sits just outside Anaheim Hills, we also serve Los Angeles, CA, Long Beach, CA, Anaheim, CA, and Riverside, CA.
Serving Anaheim Hills, CA - Our Local Coverage Area
We’re based in the Anaheim Hills 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 Anaheim Hills
After the estimate and written price are approved, we pull permits and order materials, which typically puts the first day of construction about 4 to 8 weeks out. Anaheim Hills hillside lots with grading requirements can add time to the permit review. Call (361) 315-4177 and we will give you a realistic start window based on your specific site.
Yes, and more than in most of Orange County. Many Anaheim Hills neighborhoods have design review committees that must approve exterior changes before the city permit is issued. We submit plans to both, and we build the HOA’s conditions into the written estimate so the price and schedule stay honest. Call (361) 315-4177 to discuss your specific community.
Every ADU, garage conversion, and room addition we build in Anaheim Hills is permitted through the City of Anaheim, inspected, and signed off before final payment. The Garrison Standard means we build by the book, every time. Call (361) 315-4177 for a free estimate and a written price.
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 Anaheim Hills Customers Say
"Solid job. Cabinet delivery was a week behind but they worked around it."
- Ben G."Insulation, drywall, and finishes were all well done. Feels like part of the house."
- Pete O."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.
