







A free site visit, a check of what your lot allows and a written, line-item price.
Get your free estimateFast, Reliable ADU Builders Across Selma
Adding an accessory dwelling unit in Selma usually costs between $180,000 and $380,000 for a detached build, and the permitting path is different here than in surrounding towns. That’s because Selma’s older lots, many over 7,000 square feet, carry a hidden complication: abandoned irrigation standpipes and wells from the raisin-grape era that have to be located and capped before foundation work starts. We’re Lodgewick ADU Fresno, and our ADU Builders team works in Selma weekly. The Kingswell Guarantee covers every project: a written price before work begins, a defined arrival window, a clean job site, and a written guarantee on the finished build. Call (559) 354-0579 for a free estimate and we’ll walk your lot with you before you commit to anything.
Why Lodgewick ADU Fresno Is Selma’s Preferred ADU Builders Company

Selma homeowners call us after a bad experience with someone else. The pattern is familiar: a contractor quotes a price over the phone, shows up late, finds something unexpected, and suddenly the number changes. The Kingswell Way is the opposite. Russ Delmar runs our ADU division, and he trains every crew lead to say the price before the work, show up in the window given, leave the place cleaner than found, put the guarantee in writing, and come back if it fails. That’s not a slogan. It’s the sequence our Selma customers tell us they never got from the last guy.
We’re local to the Central Valley out of our Fresno office, and Selma is a regular route for our scheduling team. When you call, a live person answers. Not a voicemail loop, not a chatbot. We keep that standard 24/7 because an ADU project raises questions at odd hours and you deserve an answer when you ask. Our crews know Selma’s neighborhoods, from the ranch-style streets near Rose Avenue to the newer lots on the east side, and we know the code officials and the permit quirks here.
Working with established prefab manufacturers like Cover, Dvele, and Boxabl means we can offer Selma homeowners a faster path to occupancy than full custom framing on many lots. We match the system to your lot, soil, budget, and timeline, then handle the site work, foundation, utilities, and finish. One team, one warranty, one written price.
ADU Construction in Selma
ADU Construction in Selma means building a second complete dwelling on a lot that was originally platted for one home. That usually means a detached unit in the backyard, but the same process covers garage conversions and attached additions. In Selma, the work starts long before any lumber shows up. We pull the parcel history, check for old agricultural infrastructure, order a soil report for the clay-heavy ground, and verify the wind-load requirements that apply to your specific site. Then we bring you a written scope and a fixed price. No “we’ll see when we open the walls” pricing.
Site Survey and Abandoned Infrastructure
Selma’s agricultural past shows up underground. Old wells and standpipes are not marked on modern plat maps, and hitting one during excavation stops the permit and triggers emergency capping at whatever the market rate is that week. We locate these before digging. Our standard ADU construction quote includes a ground-penetrating radar sweep of the build area on any Selma lot with pre-1980 irrigation history, which is most of the older neighborhoods.
Foundation and Wind-Load Compliance
Selma sits on flat valley floor with no hills to block the wind, and current code requires uplift-rated anchor bolts, shear wall detailing, and specific roof tie-downs on detached ADUs. A standard plan from a coastal jurisdiction will not pass inspection here. Our written quotes include the exact hold-down hardware and shear panel schedule the Selma building department will look for, not a generic “code compliant” line item.
Detached ADU in Selma

A Detached ADU in Selma is the most common request we get from homeowners on the city’s larger lots, and it’s where the local ground conditions matter most. You’re putting a full foundation in a backyard that may have been irrigated for grapes, almonds, or stone fruit decades ago. That history means abandoned pipes and wells, but it also means deep, loamy topsoil over expansive clay. Get the foundation wrong and you’ll see cracks before the first year is out.
Working With Mature Yards and Setbacks
Many Selma backyards have fifty-year-old shade trees that homeowners want to keep. A detached ADU has to respect side and rear setbacks, and the foundation cannot crowd a mature root system without risking damage to both the tree and the slab. We plan the unit location around the trees, not through them, and we’ll show you the setback math before you sign anything. That conversation happens on the lot, not on a phone call.
Typical Detached ADU Pricing in Selma
Detached ADUs in Selma currently run $220,000 to $380,000 for a completed, permitted unit with utilities, a kitchen, bath, and foundation. A studio with a kitchenette starts lower, around $180,000 to $220,000. These are real numbers from recent Selma projects, and they include the site survey, soil report, abandoned-well capping if needed, wind-load engineering, permits, and all finish work. A junior ADU built within the existing footprint of the home runs $90,000 to $150,000 depending on whether you already have the plumbing and electrical where you need it.
Trusted Brands We Service in Selma
For Selma homeowners who want a faster build without sacrificing the wind-load and foundation engineering the city requires, we install and finish units from Cover, Dvele, Mighty Buildings, and Boxabl. These manufacturers produce panels and modules engineered for California seismic and wind standards, but the site work still has to be right. We handle the foundation, utility trenching, grading, and the final finish, and we stock the anchor bolts, hold-downs, and shear hardware Selma inspections reference. Because we work with these systems regularly, we can give you a real delivery timeline and a written price that includes the factory order, not just a vague “starts at” number.
Common ADU Builders Problems We See in Selma Homes
- Hitting an abandoned irrigation line during excavation. This is the most expensive surprise in Selma ADU construction. Without a pre-dig survey, the excavator finds the pipe the hard way, the permit stalls, and emergency capping doubles the cost of the same work done ahead of time.
- Using roof tie-down plans from a coastal or mountain jurisdiction. Selma’s flat terrain might seem low-risk, but the code still requires specific wind uplift resistance. Standard plans from out of the area fail inspection, and the re-engineering delay pushes the project back weeks.
- Skipping the soil report on clay-heavy ground. Selma’s clay expands and contracts with moisture. A foundation poured without a current soil report can crack in the first winter, and the repair is not covered by a typical workmanship warranty if the engineer’s spec was never followed in the first place.
- Quoting a base prefab model without local upgrades. A factory ADU without the high-efficiency insulation and cool roofing package will run 40% hotter in Selma’s July afternoons. The unit price looks good until the first summer utility bill arrives, and then the homeowner is paying for a retrofit that should have been spec’d from the start.
Pricing for ADU Builders in Selma, CA
Here are the straight numbers for Selma. A garage conversion typically runs $90,000 to $160,000. A junior ADU inside the existing home envelope runs $70,000 to $130,000. A detached studio ADU runs $180,000 to $220,000. A one-bedroom detached ADU runs $220,000 to $300,000. A two-bedroom detached ADU runs $280,000 to $380,000. What changes the number: lot size and access for equipment, whether an old well or standpipe needs capping, how far the utility trench has to run, and whether your soil report calls for over-excavation or pier support. Every one of these prices is a written, fixed number before we start. Call (559) 354-0579 for an exact quote on your lot, and keep in mind estimates are free.
We Also Serve Cities Near Selma
Our crews cover the surrounding towns on a regular schedule, including Fowler, Parlier, Kingsburg, and Reedley. If you live outside Selma proper, ask about scheduling a site visit, and we’ll route a crew lead to your property with the same written-price process we use across the area.
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 Builders in Selma
Yes. Selma’s building department enforces the current California Building Code wind uplift provisions, and a detached ADU must be engineered with hold-downs, anchor bolts, and roof tie-downs rated for the 85 mph base wind speed the Central Valley flat terrain carries. A compliant quote will list the specific Simpson Strong-Tie or equivalent part numbers and the shear wall schedule. A cheap quote will say “engineered per code” and hope the inspector doesn’t look. Call (559) 354-0579 and we’ll show you what the compliance line items actually say.
If an abandoned well or standpipe is found in the build area, the Fresno County Environmental Health department requires a licensed well contractor to cap it, and the work must be documented before the building permit can proceed. We handle this as part of our pre-construction survey. On a ranch-style lot near Rose Avenue, our crew discovered a 1950s irrigation standpipe just 8 feet from a planned detached ADU foundation. Ground-penetrating radar found it, a licensed contractor capped it, and we filed photos and the county sign-off before the slab pour. That step added about ten days to the schedule and saved the homeowner from a stop-work order. Call us and we’ll check your parcel’s irrigation history as part of the free estimate.
For Selma’s summer heat, we spec R-38 or better ceiling insulation, R-21 wall insulation, and a cool roof product, either a reflective standing seam metal or a high-SRI composition shingle. The HVAC gets sized with a Manual J calculation for our actual design temperatures, not a rule-of-thumb tonnage. A unit built to these specs runs noticeably cooler in July and the cooling cost difference shows up every month. The same insulation package also helps with the cool, foggy winter mornings, keeping the unit warmer with less heating. Call (559) 354-0579 for a written quote that names the insulation and roofing products we’d use on your specific lot.
Selma’s setback rules apply to structures, not to tree canopies, but the roots are a different story. A detached ADU must sit at least 4 feet from the side and rear property lines, and the foundation plan has to respect existing tree root zones or the slab will crack later. We locate the unit where it fits the setbacks and the trees both, and we’ll map that on a site plan during the free estimate. If a tree has to go, that’s a separate decision we’ll put in writing before any work starts, with the cost named up front.
Yes, and this is one of the most overlooked parts of an ADU build. When you can show the insurer the engineered wind-load calculations, the inspection sign-offs, and photos of the installed hold-downs and shear panels, you’re proving the unit was built to current code. That documentation matters for the structure’s replacement cost and can reduce the premium compared to an unpermitted or undocumented addition. We deliver a compliance packet with every Selma ADU: engineering stamps, inspection records, and photos of every stage. If you ever file a claim, that packet is the difference between a fast settlement and a denied one.
Written by Russ Delmar, Owner at Lodgewick ADU Fresno, serving Selma since 2010.




