Pleasanton, Alameda County

ADU / Guest House Cost in Pleasanton, CA

Pleasanton remodeling costs are 15% abovethe California state average. Here's what a typical adu / guest house costs in Pleasanton in 2026, based on a 500 sqf project.

Budget
$143,750
$288/sqf
Mid-Range
$230,000
$460/sqf
High-End
$345,000
$690/sqf

Cost breakdown

Foundation & Framing
25%$57,500
Mechanical (HVAC, Plumbing, Electrical)
20%$46,000
Interior Finishes
20%$46,000
Exterior & Roofing
15%$34,500
Kitchen & Bath Fixtures
10%$23,000
Permits, Plans & Engineering
10%$23,000

Breakdown based on mid-range estimate of $230,000

Typical Timeline
4-8 months
Permits Required

Building, electrical, plumbing, mechanical. May require plan check.

Remodeling in Pleasanton

Tri-Valley suburb with excellent schools driving family demand. Well-maintained homes with strong renovation ROI. The city's design standards maintain neighborhood character.

California allows ADUs on most residential lots since 2020. An ADU adds living space and rental income. Cities must approve or deny within 60 days of a complete application.

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Other projects in Pleasanton

Kitchen Remodel
$34,500 – $103,500
Bathroom Remodel
$17,250 – $55,200
Room Addition
$69,000 – $189,750
Roof Replacement
$14,375 – $43,125
Exterior Paint
$5,750 – $20,125
Whole House Remodel
$310,500 – $1,035,000

ADU / Guest House cost in other California cities

Martinez
$125,000 – $300,000 | Contra Costa County
Belmont
$156,250 – $375,000 | San Mateo County
Cupertino
$162,500 – $390,000 | Santa Clara County
Santa Clara
$150,000 – $360,000 | Santa Clara County
Half Moon Bay
$150,000 – $360,000 | San Mateo County
Oakland
$150,000 – $360,000 | Alameda County
Del Mar
$150,000 – $360,000 | San Diego County
Downey
$118,750 – $285,000 | Los Angeles County

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