ADU Builder Near Me — Sacramento, CA — quick facts
Looking for an ADU builder near you in Sacramento? A1 is the CSLB-licensed local ADU specialist for Sacramento County. Same-day callback: (866) 797-7653. A1 Building Contractors LLC is a veteran-owned, licensed general contractor serving the greater Sacramento region. Every project starts with a review of the property, the local jurisdiction and the homeowner's goals.
Licensed California general contractor — CSLB #1094366, DRE #00898265.
Veteran-owned and based in Roseville, serving Sacramento, Placer and El Dorado counties.
Scope covers detached ADUs, attached ADUs, JADUs, garage conversions, home additions and custom homes.
Plans, permits, plan check and construction are coordinated in-house for ADU Builder Near Me — Sacramento, CA.
Typical detached ADU budgets run about $135K to $255K depending on size and site conditions.
Local guidance for ADU Builder Near Me — Sacramento, CA
A1 Building Contractors LLC helps Sacramento-area and Placer County homeowners evaluate design, permitting, site access, utilities, construction scope and realistic project costs before work begins. Each project is reviewed against the property, local jurisdiction and homeowner goals rather than a one-size-fits-all estimate.
For ADU Builder Near Me — Sacramento, CA, our team can explain practical options, likely approval steps and the tradeoffs that affect schedule and budget. Homeowners receive a clear path from initial feasibility through plans, permits and construction, with recommendations grounded in local building requirements and build conditions.
A productive first review considers available lot space, setbacks, access for construction, utility locations, desired square footage and long-term use. Those details help identify constraints early, compare appropriate project approaches and avoid spending on a design that does not fit the site or local rules. A1 then coordinates the applicable design and construction stages with clear decisions at each milestone.
ADU construction in Sacramento, Sacramento County
Looking for an ADU contractor in Sacramento? A1 Building Contractors is a fully licensed Sacramento ADU construction company (CSLB #1094366) that handles design, engineering, permits, and construction in-house — so you work with one team from first sketch through final walkthrough. As a specialist ADU contractor (not a general contractor doing ADUs on the side), we've completed dozens of detached ADUs, garage conversions, and JADUs across the city, and our relationships with the Sacramento permitting office help projects move 30–40% faster than going piecemeal..
Typical all-in cost: $150K – $350K
Sacramento allows ADUs on all residential lots, including single-family and multi-family zones
Detached ADUs — Standalone units built in your backyard, up to 1,200 sq ft · Garage Conversions — Transform your existing garage into a fully livable dwelling · Design-Build — Full-service from architectural design through construction completion
Neighborhoods served: Midtown, East Sacramento, Land Park, Curtis Park, Pocket-Greenhaven
Typical property value increase: 20–35%
Permits, rules and site conditions in Sacramento
Building an ADU in Sacramento means working to Sacramento County and local Sacramento requirements on top of California's statewide ADU law. Here is what shapes a project on a typical Sacramento lot.
A1 Building Contractors handles the Sacramento submittal, plan check corrections and inspections in house, so you are not coordinating between an architect, an engineer and a builder who each blame the other for a delay. We confirm setbacks, lot coverage, utility routing and fire access on the site walk, before a proposal is written.
Sacramento allows ADUs on all residential lots, including single-family and multi-family zones
Maximum ADU size: 1,200 sq ft for detached; 50% of existing home for attached (up to 1,200 sq ft)
No owner-occupancy requirement for ADUs built before January 2025
Setback requirements: 4 ft from rear and side property lines for detached ADUs
Services offered locally: Detached ADUs — Standalone units built in your backyard, up to 1,200 sq ft · Garage Conversions — Transform your existing garage into a fully livable dwelling · Design-Build — Full-service from architectural design through construction completion
Local average ADU investment: $150K – $350K
Common questions about ADUs in Sacramento
The three questions homeowners ask most, answered plainly. Pricing reflects 2026 Sacramento-region construction costs including permits, utility connections and standard finishes.
How much does an ADU cost? Most detached ADUs land between $135,000 and $255,000 all-in, depending on size and site conditions.
How long does it take? Design and permitting typically run 3–5 months; construction runs 4–7 months after permits are issued.
Do you handle permits? Yes — plan check submittal, corrections and inspections are managed in house at no extra hourly cost.
Can I rent it out? California state law allows ADUs to be rented at 30-day-plus terms in every jurisdiction we build in.
How we deliver ADU projects in Sacramento
Every project runs through the same five-stage process, so you know what happens next and what it costs before construction starts. We handle design, engineering, jurisdictional plan check and construction under one contract, which keeps the schedule and the budget with a single accountable team.
Stage 1 — Site walk and feasibility: setbacks, utilities, easements and lot coverage reviewed on site
Stage 2 — Fixed-scope proposal: line-item pricing with permits, utility connections and finishes included
Stage 3 — Design and engineering: architectural plans, Title 24 energy calcs and structural engineering
Stage 4 — Permitting and plan check: submittal, corrections and approvals handled by our office
Stage 5 — Construction and closeout: weekly updates, final inspection, certificate of occupancy and warranty
Why homeowners choose A1 for ADU construction in Sacramento
A1 Building Contractors LLC is a veteran-owned, CSLB-licensed general contractor serving the greater Sacramento region. We design, permit and build ADUs, garage conversions, home additions and custom homes across the Sacramento region, with transparent line-item pricing and a single point of contact from first site walk to final inspection.
CSLB #1094366 General Contractor · DRE #00898265 Broker
Serving Sacramento, Placer, El Dorado, Yolo and Sutter counties
In-house design, permitting, plan check and construction