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ADU construction in Fresno typically costs between $90,000 and $220,000 in 2026, with most homeowners landing between $125,000 and $180,000 for a standard one-bedroom unit with a kitchen and bathroom. The price depends on whether you’re converting an existing garage, building a detached unit from the ground up, or attaching to your primary home. Detached ADUs run higher due to foundation, utility trenching, and separate electrical service work.
Bradford Remodeling Co Fresno puts every ADU price in writing before the first tool comes out. No numbers that move at the door. Call (559) 785-2712 for a free estimate on your specific property.
ADU Construction Cost Breakdown (2026)
Here’s where the money goes on a typical Fresno ADU build. These are real line-item ranges we’ve seen on projects across the city, from Woodward Park to Tower District to Sunnyside.
| Cost Component | Range (Fresno Market) | Notes |
|---|---|---|
| Design & Permitting | $4,000 – $12,000 | Architectural plans, structural engineering, city of Fresno permit fees, school impact fees |
| Site Prep & Foundation | $12,000 – $28,000 | Grading, excavation, concrete slab or raised foundation, utility trenching |
| Framing & Shell | $18,000 – $38,000 | Wall framing, roof structure, sheathing, house wrap, exterior siding |
| Roofing | $6,000 – $14,000 | Shingle or standing seam, flashing, gutters |
| Electrical (Separate Service) | $6,000 – $15,000 | Subpanel, wiring, fixtures, PG&E hookup coordination |
| Plumbing | $7,000 – $16,000 | Water lines, drain lines, water heater, sewer connection |
| HVAC | $4,000 – $9,000 | Mini-split system is standard for ADUs in Fresno’s climate |
| Insulation & Drywall | $4,000 – $9,000 | R-13 walls, R-38 ceiling per Title 24 energy code |
| Kitchen | $9,000 – $25,000 | Cabinetry, countertops, sink, range, refrigerator hookup |
| Bathroom | $6,000 – $15,000 | Shower, toilet, vanity, tile work |
| Flooring | $3,000 – $8,500 | LVP, tile, or engineered hardwood throughout |
| Finishes & Fixtures | $4,000 – $12,000 | Doors, trim, paint, lighting, hardware |
| Site Work & Landscape | $3,000 – $10,000 | Walkway, drainage, minimal landscaping, utility connections |
What Drives the Price Up or Down in Fresno
Three things move the needle more than anything else. First is whether you’re doing a garage conversion or a detached new build. Garage conversions in Fresno typically run $30,000 to $80,000 total because the shell, roof, and slab already exist. Detached units start from scratch underground, which is why they land in the $90,000 to $220,000 range on this page.
Second is utility distance. If your ADU sits 20 feet from the main panel and water main, trenching is four figures. If it’s 80 feet across a backyard with tree roots and old concrete in the way, that becomes five figures. We’ve seen utility work alone swing a Fresno project by $8,000.
Third is finish level. A KraftMaid cabinet package with Cambria countertops and Kohler fixtures is not the same number as builder-grade boxes with laminate tops. Bradford Remodeling works with a documented roster of name-brand materials, so you know exactly which line item is which and what each one costs before you sign anything.
What Affects ADU Construction Pricing in Fresno
- Fresno development impact fees. The city of Fresno charges school impact fees on new dwelling units. As of 2026, these run roughly $4 to $5 per square foot, which adds $2,000 to $4,000 on a typical 800-square-foot ADU. Your written estimate should show this as a line item, not bury it in “miscellaneous.”
- Title 24 energy requirements. California’s energy code applies to ADUs, and Fresno’s hot summers mean solar-ready wiring, higher-efficiency HVAC, and better attic insulation are non-negotiable. Skipping them is not an option, but the specs affect cost. A mini-split system sized for a Fresno summer is standard.
- Soil conditions on your lot. Fresno has hardpan and clay soil zones that affect slab design and drainage. A lot in the Fig Garden area with good drainage is a different foundation job than a low-lying lot in the Roosevelt neighborhood where water pools after rain.
- Access to the build site. If a skid steer and a concrete truck can’t get to the back of your property, that means hand digging, wheelbarrow work, and pump trucks. Tight side yards in older Fresno neighborhoods like Huntington Boulevard add real labor hours.
- Panel capacity and PG&E coordination. Many Fresno homes built before 1990 have 100-amp panels. An ADU with a kitchen, bathroom, and mini-split typically needs its own subpanel or a main panel upgrade. PG&E scheduling for disconnects and reconnects can add weeks and cost to the project.
- Your ADU size and layout. A 500-square-foot studio above a garage is not half the cost of a 1,000-square-foot two-bedroom unit. Kitchens and bathrooms are the expensive rooms, and every ADU needs one of each minimum. Adding a second bedroom is cheaper per square foot than adding a second bathroom.
Our ADU construction service page in Fresno walks through how Bradford manages each of these variables with a written scope and a fixed price. If you’re still in the planning phase, start there to see how we structure the whole process from permits to final walkthrough.
ADU Types and Their Typical Costs in Fresno
Not all ADUs are built the same way, and the price difference between types is bigger than most homeowners expect. Here’s how the numbers break down in Fresno specifically.
Detached ADU (New Construction)
This is the full build: new foundation, new walls, new roof, separate utilities. In Fresno, a detached one-bedroom ADU of about 600 to 800 square feet usually lands between $90,000 and $220,000. The range is wide because finish choices and site conditions swing hard. A standard one-bedroom with a modest kitchen and bath sits in the low middle. A two-bedroom detached unit with better finishes and a tough utility run pushes toward the top.
Garage Conversion ADU
Converting an existing garage runs $30,000 to $80,000 in Fresno. The structure and slab already exist, so you’re paying for insulation, drywall, electrical, plumbing, HVAC, and finishes. One thing to know: Fresno garages built before the 1980s often have slabs that were never poured to living-space standards, which can mean cutting for plumbing drains or adding floor leveling. That’s a line item you want to see coming, not discover at rough-in.
Attached ADU (Addition to Primary Home)
Adding an ADU onto the side of your house runs $80,000 to $190,000, depending on whether you’re extending an existing wall line or building a bump-out. An attached ADU shares at least one wall and sometimes the main electrical panel, which saves on trenching and one foundation wall. But you still pay for new square footage, and that means the same framing, roofing, and finish costs as a detached unit for the parts that are new.
Fresno Permits, Fees, and What the City Requires
Fresno sits in a sweet spot for ADU policy compared to coastal California cities. The city has adopted the state’s ADU mandate, which means no discretionary review for units that meet code, and that keeps permitting timelines shorter. But there are still real costs and rules.
Expect a building permit, an electrical permit, a plumbing permit, and a mechanical permit, each with its own fee schedule. A written estimate from Bradford shows every permit fee as its own line. The city also requires plan check for structural and Title 24 energy compliance. All told, you should budget $4,000 to $12,000 for design, engineering, and permit fees on a standard Fresno ADU.
Bradford handles plan submission and permit scheduling as part of the job. That means you’re not the one standing at the building counter in downtown Fresno asking why the plan reviewer flagged a window header. We also coordinate with PG&E directly for any service disconnect or panel work, which is the part of an ADU project that frustrates first-time builders the most.
How to Save on ADU Construction Without Cutting Corners
Saving money on an ADU is about scope decisions, not cheap materials. Here’s what actually moves the number down without creating problems later.
- Convert the garage instead of building new. This is the single biggest savings lever in Fresno. A garage conversion skips foundation, framing, and roof costs, which can cut $50,000 to $90,000 off the total project.
- Keep the footprint simple. A rectangle with a simple gable or shed roof is cheaper to frame and roof than anything with bump-outs, dormers, or a complicated roofline. Every corner has a cost.
- Put the kitchen and bathroom on the same wall. Sharing a wet wall means one set of supply lines and one drain run instead of two. That’s real savings in plumbing labor and materials.
- Choose LVP over hardwood or tile for the main floor areas. Luxury vinyl plank in the $3 to $5 per square foot range is durable, looks right, and installs faster. Keep tile for the bathroom only.
- Use a mini-split instead of extending central HVAC. Ductwork to a detached ADU is expensive and inefficient. A properly sized mini-split handles Fresno’s climate well and costs less to install and run.
- Get the written price first. Bradord’s no-hassle upfront pricing means every scope decision is priced on paper before you commit. That’s how you control the budget: decide what to include or cut based on real numbers, not rough guesses.
Bradford Remodeling Co Fresno offers free estimates. Call (559) 785-2712 and a live person answers, 24/7. Not a voicemail, not a callback queue. We’ll schedule a walkthrough of your property and give you a written price for your specific ADU scope.
Why Bradford Remodeling Approaches ADU Pricing Differently
Most Fresno homeowners we talk to who have been burned by another contractor tell the same story: a verbal estimate that sounded good, a handshake that felt fine, and then a change order two weeks in that doubled the plumbing line. That is not how this works.
Bradford Remodeling is held to The Garrison Standard, the operating framework behind every Garrison Partners location since 2004. It means a written price before any work begins, every time. No numbers that move at the door. It also means every completed project carries the 365-Day Done Right Promise: if the work fails inside the first year, we return and correct it at no charge. In writing, signed, in your hand at close-out.
Our crews run on The Garrison Code, which covers everything from background-checked, uniformed technicians to the condition of your job site at the end of every day. You know who’s walking through your door before they arrive. The site gets cleaned at day’s end. The scope is documented. The price is fixed. That is what “squared away” looks like.
And if you call at 2 a.m. with a question, a live person picks up the phone. That’s not a marketing line; it’s a staffing decision we made because emergency plumbing leaks don’t respect business hours.
Frequently Asked Questions About ADU Construction Cost in Fresno
How much does a 1-bedroom ADU cost in Fresno?
A one-bedroom ADU in Fresno typically costs $90,000 to $160,000 for a detached unit of 400 to 600 square feet. If you convert an existing garage, the same one-bedroom layout usually runs $45,000 to $70,000. The biggest swing factor is whether you’re building new or converting, followed by finish level and utility access on your specific lot. Call (559) 785-2712 for an exact quote on your property. Estimates are free.
Is it cheaper to build an ADU or convert a garage in Fresno?
Converting a garage is cheaper in nearly every case, running $30,000 to $80,000 compared to $90,000 to $220,000 for a new detached ADU. A garage conversion reuses the existing foundation, walls, and roof, which saves $50,000 or more on most Fresno properties. The trade-off is ceiling height, slab condition, and the loss of covered parking, which matters if you have more vehicles than driveway space. We can price both options in the same written estimate so you can compare real numbers side by side.
How long does ADU construction take in Fresno?
A detached ADU in Fresno typically takes 6 to 10 months from permit submission to final inspection. Garage conversions are faster, usually 4 to 6 months, because the shell already exists. The biggest timeline variables are city of Fresno plan check turnaround and PG&E scheduling for any service upgrade. Bradford’s written estimate includes the schedule as a line item, and we update it in writing if anything changes.
What permits do I need for an ADU in Fresno?
You need a building permit, electrical permit, plumbing permit, and mechanical permit from the city of Fresno, plus PG&E coordination for any new or upgraded service. Budget $4,000 to $12,000 for design, engineering, and permit fees combined. Bradford handles the full permitting process on your behalf, from plan submission to scheduling inspections to closing out the permit file at the end of the job.
Can you build an ADU on my Fresno property?
Most single-family lots in Fresno are eligible for at least one ADU under California state law, which overrides many local zoning restrictions. The main practical limits are lot size, setbacks, and whether your property has room for a detached unit or is better suited to a garage conversion or attached addition. During a free walkthrough, we measure the site and tell you straight what fits, what the city will approve, and what it will cost. Call (559) 785-2712 to schedule yours.
Get a Written Price for Your Fresno ADU Project
If you’re thinking about an ADU in Fresno, start with a number, not a guess. Bradford Remodeling Co Fresno gives every homeowner a written price for their specific project, a documented scope of work, and a signed 365-Day Done Right Promise before the job starts. No pressure, no countdown, no surprise invoices. Just a straight price from a crew that runs on discipline.
Call (559) 785-2712 for a free estimate. A live person answers, day or night. We serve Fresno homeowners with ADU construction, garage conversions, kitchen remodeling, and whole-home work, and we answer the phone like we answer a door: directly and on time. You can also visit our home page to see the full scope of what we do.
Written by Curtis Lane, Owner at Bradford Remodeling Co Fresno. Pricing reflects the Fresno market as of 2026. Bradford Remodeling Co Fresno offers free estimates – call (559) 785-2712.
What Our Customers Say
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