All Projects
ADU Garage Conversion
A two-car garage converted into a permitted 400 sq ft ADU with a kitchenette, full bath, and private entry.
Patterson, CA14 weeks$96,500
Scope of work
What we did.
- ADU plans and county permitting
- Insulated walls, ceiling, and new slab finish
- Kitchenette, full bath, mini-split HVAC
- New entry door, windows, and exterior finish
Materials used
HVAC
Ductless mini-split heat pump
Insulation
R-15 walls / R-30 ceiling
Flooring
Rigid-core LVP throughout
Photo gallery
The build, start to finish.
Timeline
14 weeks, phase by phase.
- Weeks 1–5Plans & permits
ADU drawings, Title 24, county approval.
- Weeks 6–9Rough construction
Framing, plumbing, electrical, HVAC, inspection.
- Weeks 10–11Insulation & drywall
Insulation, drywall, texture.
- Weeks 12–14Finishes
Kitchenette, bath, flooring, paint, final.
Budget breakdown
Where the $96,500 went.
Labor30%
Full crew across all phases
Mechanical/electrical/plumbing22%
New service, mini-split, plumbing runs
Finishes20%
Kitchenette, bath, flooring, paint
Framing & envelope16%
Walls, windows, entry door
Plans & permits12%
Design, Title 24, county fees
Percentages are approximate and specific to this project. Every estimate from Chadha Construction is itemized in writing before work begins.
“We rent it out now and it paid for itself faster than we expected.”
Homeowner, Patterson
Your project next