A free site visit, a check of what your lot allows and a written, line-item price.
Get your free estimateADU Company in Fresno, CA
Fresno homeowners add ADUs for a reason no other California city can match: land is still affordable, the rules are among the most permissive in the state, and a backyard unit pencils out as rental income fast. The typical job here involves a 1950s – 80s ranch on a 6,000+ sq ft lot, a detached two-car garage, and an electrical panel that’s usually maxed out before we even start. Benson ADU Fresno handles the whole thing, from the first site walk to the final inspection, with a written price before any work begins. Call (559) 206-2363 to schedule a free estimate.
Why Fresno Homes Are Different
Fresno’s housing stock tilts heavily toward single-story ranches built between the 1950s and 1980s. Those homes share a few traits that shape every ADU we build here. Lots are big, often 6,000 square feet or more, which means a detached backyard cottage almost always fits inside the setback requirements without a variance. The existing garages are detached, with wide driveways and simple roof lines, which makes a garage conversion a cleaner job than in cities with attached garages and shared walls.
The catch is what’s behind the walls. In the pre-1980 tract belts, like the neighborhoods around Shaw, Blackstone, and Herndon, original 100-amp electrical panels are nearly always tapped out. Adding an ADU routinely triggers a service upgrade to 200 amps, and homeowners who budget for it early avoid permit delays later. Older homes also carry cast-iron sewer lines that need scoping before any foundation work begins. On the plus side, Fresno’s flat terrain and hardpan soil keep foundation costs predictable, and the hot summer climate pushes us toward high-efficiency HVAC, reflective roofing, and solar-ready layouts that cut peak-rate energy bills from June through September.
Our Main Fresno Services
Most Fresno homeowners come to us for one of three projects. Each has its own page with local pricing and specifics.
ADU Builders in Fresno
A Fresno ADU usually takes two forms: a garage conversion on an existing slab, or a new detached cottage in the backyard. Both are permitted quickly under Fresno’s ADU-friendly rules, and both pair well with prefab systems like Abodu or Dvele, which arrive as pre-engineered panels and cut on-site framing time significantly. The big local variable is the electrical upgrade, which we scope during the first visit so the written price you receive already includes it. See ADU Builders in Fresno for full details and pricing.
Home Addition Contractor in Fresno
Home additions in Fresno often grow out of the same ranch-house footprint: a new primary suite off the back, an expanded kitchen, or a family room that opens to the yard. Older slab foundations here are generally sound, which keeps structural surprises lower than in coastal cities with shifting soils. We still run sewer-line and panel checks before pricing, because a 1960s home on Blackstone almost always needs both addressed. See Home Addition Contractor in Fresno for what a Fresno addition costs and how long it takes.
Room Addition Contractor in Fresno
A room addition is the leanest path to extra square footage: one new bedroom, a home office, or a den poured onto the existing slab line. On Fresno’s near-flat lots, foundation work is straightforward, and the main scheduling factor is the city’s permit review, not the build itself. We quote the entire job in writing, including any panel or sewer work, before you sign anything. See Room Addition Contractor in Fresno for line-item pricing and timelines.
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 Fresno
We build with prefab systems from Abodu, Cover, and Dvele, plus James Hardie cladding, and we stock common panel and trim components locally so change orders don’t stall the job. You can research any of our brands independently before we ever put a number in front of you.
Pricing for ADU Company in Fresno, CA
| Service | Typical range in Fresno |
|---|---|
| Detached ADU (site-built) | $180,000 – $320,000 |
| Detached ADU (prefab, e.g. Abodu or Dvele) | $160,000 – $280,000 |
| Garage conversion ADU | $120,000 – $220,000 |
| JADU (attached junior unit) | $90,000 – $150,000 |
| Electrical panel upgrade (100A to 200A) | $3,500 – $6,000 |
| Sewer line replacement (cast-iron to ABS) | $6,000 – $15,000 |
| Foundation work (new detached ADU) | $15,000 – $35,000 |
| HVAC mini-split system (ADU) | $6,000 – $12,000 |
| Home addition (per sq ft) | $220 – $380 |
| Room addition (12×16 bedroom office) | $55,000 – $95,000 |
What pushes the number up in Fresno is almost always hidden in the house, not the yard: a 100-amp panel that has to become 200-amp, cast-iron sewer lines from the 1960s, or an HVAC upgrade to handle Fresno’s 100°F summers. Our written price covers everything we find in the first site walk, so the number you approve is the number you pay.
Neighborhoods We Serve in Fresno
We run ADU and addition projects across Fresno, from the older ranch tract belts in the north and central areas to the newer subdivisions south and east of downtown. Crews stage from our Fresno Central Valley office, which keeps response time tight across the metro.
- Woodward Park
- Fig Garden
- Tower District
- Bullard
- Sunnyside
Service Area – Cities Near Fresno
Benson ADU Fresno also builds in the communities that ring the city, including Clovis, CA, Madera, CA, Sanger, CA, and Fowler, CA. If your property sits anywhere in the Fresno-Clovis corridor or a short drive south or west along 99 or 41, we can take the file.
Serving Fresno, CA - Our Local Coverage Area
We’re based in the Fresno 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 Fresno
We typically schedule the first site visit within a few business days of your call. During the busy spring and fall seasons in Fresno, plan on a week. Call (559) 206-2363 and a live person will put you on the calendar.
Yes. We prepare the plans, submit the package to the City of Fresno, and manage the review cycle. You’ll see every permit, fee, and inspection note in your written estimate and in the digital invoice, so nothing arrives as a surprise line item.
That’s the most common upgrade we quote in Fresno. If an ADU or addition pushes your load past capacity, we include a 200-amp panel upgrade in the written price from day one, so the permit process never stalls mid-project.
Ready to talk numbers for your Fresno property? Call Benson ADU Fresno at (559) 206-2363 for a free, written estimate. Troy Eastman and the team will walk the site, name the price, and put the guarantee 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 Fresno Customers Say
"Home addition blends in with the original house."
- Vic S."Great build. Inspection delay, the county's fault, pushed things a week, but updates were clear."
- Soo-jin P."Booked a consult online and met the project manager two days later. Weekly progress updates arrived by text with photos. ADU finished on schedule."
- Hannah W.
