A free site visit, a check of what your lot allows and a written, line-item price.
Get your free estimateADU Company in Selma, CA
Selma’s ADU and addition market runs on older homes, deep lots, and rear alley access, so planning a detached unit or room addition here usually starts with a hard look at foundation condition and setback math. Most Selma projects we price involve either a garage conversion on a pier-and-beam base from the 1940s or a new detached build on a 50′ x 100′ parcel. If you’re starting to price an ADU or addition in Selma, call (559) 785-0627 and we’ll walk you through what your specific lot allows before you spend a dime.
Why Selma Homes Are Different
Selma’s housing stock tilts heavily toward single-family homes built between the 1920s and 1970s, and the older grid districts carry a particular quirk: detached garages from that era often sit on pier-and-beam foundations that were never designed to support living space. That means a garage conversion in Selma frequently includes a foundation upgrade before framing ever starts, which is a line item homeowners don’t see coming until the first site walk. The lots themselves help, though. The standard 50′ x 100′ parcel with rear alley access gives you options for alley-loaded ADU placement that a tighter front-loading lot wouldn’t, and setback requirements can often be met more easily when the unit faces the alley rather than the street.
Climate is the other constant. Selma’s summers run hot and dry for weeks at a stretch, and winter nights dip below freezing often enough to matter. Any ADU or addition here needs insulation and cooling designed for real heat, not coastal assumptions. Heat pumps and dual-pane windows are the two upgrades we recommend on nearly every Selma project, because they pay back fastest in this climate and they prevent the stale, overheated-air problem that plagues under-insulated additions.
Our Main Selma Services
Most Selma homeowners reach out about one of three projects: a home addition, a detached ADU, or a room addition. Each has its own Selma page with pricing and details, linked below.
Home Addition Contractor in Selma
A home addition in Selma usually means expanding the footprint of a mid-century home, which brings foundation matching and roofline tying into play from day one. The deep lots in Selma’s older districts make side and rear additions more feasible than in newer tract subdivisions, but the same pier-and-beam foundation issues that affect garage conversions can apply to an attached addition as well. We handle the full scope: site assessment, foundation work, framing, HVAC tie-in, finishes, and final inspection coordination. For the full Selma picture on costs and process, see Home Addition Contractor in Selma.
ADU Builders in Selma
Building a detached ADU in Selma means working with the alley, not against it. Rear alley access changes how we position a new unit, where utilities run, and how we sequence deliveries during construction, and it often lets us avoid tearing up the front yard entirely. For older garages slated for conversion, the foundation question is the first gate: if the pier-and-beam base has settled or the spacing doesn’t meet current code, that work gets priced into the quote upfront, not sprung later. Read the full breakdown at ADU Builders in Selma.
Room Addition Contractor in Selma
A room addition in Selma is the most contained of the three: one new room, tied to the existing house, with the roofline and foundation matched to current conditions. On a 50′ x 100′ lot, we typically have room to go sideways rather than up, which keeps structural work simpler and keeps the project within a tighter permit path. The common surprise here is insulation, since Selma’s heat will find every gap in a poorly sealed addition. Details on pricing and scope are on the Room Addition Contractor in Selma page.
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 Selma
For Selma homeowners weighing prefab against site-built, we work regularly with Abodu, Cover, and Dvele units, plus James Hardie exterior cladding on both new builds and conversions. We don’t push one brand fits-all; the lot, the alley access, and the foundation condition usually narrow the right choice down fast. See our brands for the full list and what each one does well.
Pricing for ADU Company in Selma, CA
| Service | Typical range in Selma |
|---|---|
| Detached ADU (400 – 800 sq ft) | $180,000 – $320,000 before site work |
| Garage conversion ADU (existing slab) | $120,000 – $180,000 |
| Garage conversion ADU (foundation upgrade needed) | $140,000 – $210,000 |
| Home addition (two rooms, ~400 sq ft) | $140,000 – $220,000 |
| Room addition (single room, ~200 sq ft) | $80,000 – $140,000 |
| Heat pump install (per unit) | $9,000 – $16,000 |
| Dual-pane window pack (whole unit) | $6,000 – $12,000 |
| Foundation upgrade (pier-and-beam to code) | $12,000 – $28,000 |
| Utility separation and alley tie-in | $4,000 – $10,000 |
Two things push Selma prices above the base ranges: hidden foundation work under older garages, and insulation upgrades the climate demands but original builds never had. We price both into your written quote before work starts, so the number you sign is the number you pay, not a starting point.
Neighborhoods We Serve in Selma
We cover the full Selma city footprint, from the historic grid districts around downtown to the newer residential pockets south of the highway. Our crews are typically in Selma within a business day for site walks and estimates.
- Downtown Selma historic grid
- North Selma residential districts
- South Selma and the Highway 99 corridor
- East Selma single-family neighborhoods
- West Selma alley-access lots
Service Area – Cities Near Selma
Beyond Selma proper, we regularly take on ADU and addition work in the neighboring Central Valley communities. If your property is in Fowler, CA, Parlier, CA, Kingsburg, CA, or Reedley, CA, we’ll send the same Threshold Verified crew and the same written-price process.
Serving Selma, CA - Our Local Coverage Area
We’re based in the Selma 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 Selma
Most Selma projects move from first site walk to a written quote within 7 – 10 days. Actual construction start depends on Selma’s permit timeline, which we manage for you as part of the project scope. Call (559) 785-0627 to schedule the first visit.
Yes. Converting a detached garage to living space in Selma requires a building permit, and foundation and utility-separation requirements often trigger additional engineering review. We pull the permits and coordinate the inspections for every project.
Often, yes. Selma’s 1920s – 1950s garages frequently sit on pier-and-beam foundations that don’t meet current code for occupied space. We assess this on the first visit and if an upgrade is needed, it’s in your written quote from the start. Call (559) 785-0627 for an exact assessment.
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 Selma Customers Say
"Backyard ADU for my mother. The project manager showed ID and walked me through the permit steps, the foundation plan, and the schedule. Moved her in on time."
- Margaret C."Detached unit with a small kitchen and bath. Windows and finishes were nicer than I expected for the budget."
- Philip S."Insulated the walls and ceiling properly. It stays comfortable even in July."
- Tamika W.
