ADU Builders in Fresno, CA
Looking for an ADU builder in Fresno? ADUs, garage conversions, and backyard cottages can add living space, rental income, or room for family. This page lists local ADU contractors and summarizes basic cost and permit considerations for Fresno homeowners.
Fresno offers some of California's most affordable ADU construction, and the city has been an early adopter of pre-approved plans. ADUs here are popular for multigenerational housing and rental income on large Central Valley lots.
Featured ADU contractors in Fresno
Serves Fresno and California's Central Valley
Feasibility studies, Design, Permitting, Construction
Serves Fresno County, San Joaquin County, Stanislaus County, and Merced County
ADU conversions, Garage conversions, Remodeling
Serves Fresno and the Central Valley region
Detached ADUs, Garage conversions, Permitting assistance
Serves Fresno, CA
Custom ADUs, Permitting, Design consultation
Serves Fresno, Clovis, Visalia, Sanger, Madera, Kerman, Merced, Atwater, and Los Banos
ADU construction, Remodeling, Additions
Serves Fresno area
ADU construction, Small home construction
ADU costs in Fresno
General estimated ranges:
- Garage conversion: $70,000–$130,000
- Detached ADU: $120,000–$260,000
- Design/permitting: varies by project
Estimates only — actual costs vary by site, size, and finishes. See the full Fresno ADU cost guide.
Common ADU project types
- Detached ADU
- Garage conversion — see Fresno garage conversion contractors
- Junior ADU
- Basement conversion
- Prefab ADU
ADU permits in Fresno
Fresno allows ADUs on most residential lots and maintains a pre-approved ADU plan catalog that reduces design cost and review time. Standard state rules apply: ministerial approval, 4 ft side/rear setbacks for qualifying units, no replacement parking for garage conversions.
Complete applications are reviewed within the state's 60-day window; pre-approved plans often clear plan check in weeks. Typical projects run 1–3 months from design start to permit.
Questions to ask an ADU builder
- Have you completed ADUs in this city?
- Can you help with design and permits?
- Do you handle utility connections?
- Can you show recent examples?
- Are you licensed and insured?
FAQ
How much does an ADU cost in Fresno?
Most detached ADUs in Fresno land in the $120,000–$260,000 range all-in, depending on size, finishes, and site conditions. Garage conversions typically run $70,000–$130,000. These are editorial estimates — get multiple quotes for your specific property.
Do I need a permit to build an ADU in Fresno?
Yes. Every ADU and garage conversion in Fresno requires building permits. The good news: California law requires ministerial (no public hearing) approval for code-compliant ADUs. Complete applications are reviewed within the state's 60-day window; pre-approved plans often clear plan check in weeks. Typical projects run 1–3 months from design start to permit.
How long does it take to build an ADU in Fresno?
Plan for 3–6 months of design and permitting, then 4–8 months of construction for a detached ADU. Garage conversions are usually faster — often 3–5 months of construction once permits are issued.
Can I rent out my ADU in Fresno?
Yes — long-term rentals (30+ days) of ADUs are allowed statewide in California. Short-term rental rules vary by city, so check Fresno's short-term rental ordinance before planning Airbnb-style use.
Does an ADU add value to my home in Fresno?
Generally yes. Appraisals vary, but a permitted ADU adds livable square footage and rental income potential, which supports resale value. Note that ADUs also increase your property tax assessment on the new construction value.
What's the difference between an ADU and a JADU?
A Junior ADU (JADU) is a unit of up to 500 sq ft created within the existing home, with an efficiency kitchen and shared or separate bath. A standard ADU is a full independent dwelling — attached, detached, or converted from a garage. Many Fresno lots qualify for one of each.
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