ADU construction in Shingle Springs, El Dorado County
Homeowners across Shingle Springs are converting underused yard and garage space into permitted second dwellings. A1 runs the whole job in-house: measured site survey, plan set, engineering, permit corrections, and construction with our own crews. Budget for $195K – $415K all-in in Shingle Springs; with a median home value around $615,000, the added value typically lands near 20–35%.
Typical all-in cost: $195K – $415K
Detached ADUs are allowed up to 1,200 sq ft on qualifying residential parcels
Attached ADUs — a permitted addition sharing one wall with the main house, useful on narrower Shingle Springs lots · Junior ADUs (JADUs) — up to 500 sq ft carved out of the existing home, the lowest-cost path to a permitted unit · Garage Conversions — turn an existing Shingle Springs garage into a permitted, insulated, code-compliant dwelling
Neighborhoods served: Placerville, Shingle Springs core, Surrounding El Dorado County properties
Typical property value increase: 20–35%
How we deliver Shingle Springs Junior & Detached ADUs
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
Common questions about Shingle Springs Junior & Detached ADUs
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.
Why homeowners choose A1 for Shingle Springs Junior & Detached ADUs
A1 Building Contractors LLC is a veteran-owned, CSLB-licensed general contractor based in Roseville, CA. 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
4010 Foothills Blvd Ste 103-155, Roseville, CA 95747