ADU Company in Rowland Heights, CA
Lodgewick ADU Builders is the ADU company Rowland Heights homeowners call when they want a real price before the work starts, not a guess that changes later. Rowland Heights is unincorporated LA County, which means ADU permits here run through county offices in Alhambra instead of a city hall. That changes timelines, paperwork, and which inspectors show up. It also means the contractor you hire needs to know both the county process and how this community actually builds: garage conversions on 1980s tract lots, detached ADUs on hillside parcels, and multigenerational layouts for extended families. If you want to talk through your lot, call (254) 602-5618.
Why Rowland Heights Homes Are Different
Most Rowland Heights homes are single-family tract houses built between the late 1970s and early 1990s, sitting on lots that run 7,000 to 10,000 square feet with two-car attached garages. That housing stock makes garage-conversion ADUs the most common project here. A notable share of these homes also carry unpermitted additions or garage conversions from prior owners. Before LA County will issue a new ADU permit, those old unpermitted spaces often have to be assessed and brought up to code, which adds scope to what looked like a simple job.
The terrain matters too. Homes along the northern, hillside edges near the Puente Hills can trigger LA County geotechnical review for detached ADU foundations. That’s a cost and timeline item flat-lot projects in Walnut or La Puente rarely face. And summers here routinely exceed 95°F with dry Santa Ana winds in fall. A habitable Rowland Heights ADU needs dedicated mini-split HVAC sized for that heat, not a code-minimum window unit bolted in as an afterthought.
Our Main Rowland Heights Services
Rowland Heights homeowners most often call us about two things: adding square footage to the main house, and converting space they already have. Here’s how each works here.
Home Addition Contractor in Rowland Heights
A Rowland Heights home addition means extending the footprint of a 1970s-to-1990s tract home, often to add a bedroom, family room, or expanded kitchen. Because many of these homes sit on larger lots, there’s usually room to build out, but the unincorporated county permit path means drawings, plan checks, and inspections all run through LA County’s Department of Regional Planning rather than a local counter. We handle that paperwork as part of the job. The written price you get before we start includes the county fees we can anticipate at the time we scope the project. Home Addition Contractor in Rowland Heights
Garage Conversion Contractor in Rowland Heights
Garage conversions are the most common ADU type in Rowland Heights, because the attached two-car garages on these 1980s tract homes already have a roof, slab, and walls in place. The catch is that many were partially converted years ago without permits. Before LA County approves a new garage conversion ADU, those prior modifications often have to be corrected for electrical, insulation, and egress. We inspect for that early so the price you get reflects the full scope, not a surprise discovered mid-job. Garage Conversion Contractor in Rowland Heights
ADU Builders in Rowland Heights
Building a detached ADU in Rowland Heights from the ground up is a different job than a garage conversion. On flat lots, a new unit can go up efficiently with a prefab or panelized build. On hillside lots along the northern edge of the community, foundation design may need geotechnical review, which we factor into the estimate before you commit. We work with prefab manufacturers and material systems that match the lot, the budget, and the county’s plan-check requirements. Every detached ADU gets the same written price and written guarantee as a garage conversion. ADU Builders in Rowland Heights
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 Rowland Heights
We build with a small set of established ADU and materials brands we know well, including Abodu, Cover, and Dvele for prefab structures, plus James Hardie siding for durability in Rowland Heights heat and Santa Ana wind conditions. See our brands for the full picture. Parts and finish materials are sourced through our normal supply lines, so there is no long wait for specialty items on most Rowland Heights projects.
Pricing for ADU Company in Rowland Heights, CA
| Service | Typical range in Rowland Heights |
|---|---|
| Garage conversion ADU (attached, 400 – 500 sq ft) | $120,000 – $180,000 |
| Detached ADU (new build, 600 – 800 sq ft) | $220,000 – $350,000 |
| Junior ADU (JADU, interior conversion) | $70,000 – $110,000 |
| Prefab ADU (Abodu, Cover, or Dvele model) | $200,000 – $320,000 installed |
| Home addition (single room, 200 – 300 sq ft) | $80,000 – $140,000 |
| Home addition (primary suite, 400 – 500 sq ft) | $150,000 – $250,000 |
| Garage conversion (to living space, no ADU permit) | $60,000 – $110,000 |
| Mini-split HVAC for ADU (dedicated system) | $6,000 – $12,000 |
| Foundation work, hillside lot (geotech-driven) | $15,000 – $45,000 added |
| Bringing prior unpermitted work to code | $8,000 – $30,000 added |
What pushes a Rowland Heights ADU price up is usually one of three things: unpermitted prior work that needs correction, hillside foundation requirements, or the need for a dedicated HVAC system in a garage conversion. Every Lodgewick project gets a written price before work begins, and that is the price you pay. No door changes it.
Neighborhoods We Serve in Rowland Heights
We work across the full Rowland Heights footprint, from the flat tract streets south of Colima Road to the hillside lots on the northern edge near the Puente Hills. We are typically able to schedule an estimate within a few days for most Rowland Heights addresses.
- North Rowland Heights (hillside lots near Pathfinder Road)
- Central Rowland Heights (Colima Road corridor and surrounding tract homes)
- South Rowland Heights (near Otterbein Avenue and lower slopes)
- Rowland Heights east of Fullerton Road toward Brea
- Tract neighborhoods west of Nogales Street toward La Puente
Service Area – Cities Near Rowland Heights
Lodgewick ADU Builders coordinates Rowland Heights projects from our Los Angeles scheduling office, with crews working locally throughout the San Gabriel Valley. If you are in a neighboring community, we also serve Walnut, CA, Brea, CA, La Puente, CA, and Hacienda Heights, CA.
Serving Rowland Heights, CA - Our Local Coverage Area
We’re based in the Rowland Heights 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 Rowland Heights
We typically schedule Rowland Heights site visits within a few days of your call. The estimate is free, and the written price you receive after that visit is the price we build to.
We handle the LA County Department of Regional Planning paperwork as part of the project. You won’t be left to figure out county forms, plan checks, or inspector scheduling alone. Call (254) 602-5618 to talk it through.
That is common here. We assess the prior work early and include any required corrections in the written price so you are not surprised mid-build. Call (254) 602-5618 for an exact quote, and we’ll walk you through what the county will require.
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 Rowland Heights Customers Say
"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"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