Castro Valley, Alameda County

Bathroom Remodel Cost in Castro Valley, CA

Castro Valley remodeling costs are 10% abovethe California state average. Here's what a typical bathroom remodel costs in Castro Valley in 2026, based on a 60 sqf project.

Budget
$16,500
$275/sqf
Mid-Range
$29,700
$495/sqf
High-End
$52,800
$880/sqf

Cost breakdown

Tile & Fixtures
30%$8,910
Labor
30%$8,910
Plumbing
20%$5,940
Cabinets & Vanity
10%$2,970
Permits & Overhead
10%$2,970

Breakdown based on mid-range estimate of $29,700

Typical Timeline
4-8 weeks
Permits Required

Building permit required. Plumbing permit for fixture relocation.

Remodeling in Castro Valley

Unincorporated East Bay community with a suburban feel. Many 1950s-60s ranch homes being renovated. Alameda County handles permitting, which is straightforward.

Bathroom remodels deliver the highest ROI of any home improvement project. Waterproofing is the most critical element - insist on a membrane system before any tile work.

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Other projects in Castro Valley

Kitchen Remodel
$33,000 – $99,000
ADU / Guest House
$137,500 – $330,000
Room Addition
$66,000 – $181,500
Roof Replacement
$13,750 – $41,250
Exterior Paint
$5,500 – $19,250
Whole House Remodel
$297,000 – $990,000

Bathroom Remodel cost in other California cities

Hillsborough
$21,000 – $67,200 | San Mateo County
San Mateo
$18,750 – $60,000 | San Mateo County
Half Moon Bay
$18,000 – $57,600 | San Mateo County
Petaluma
$16,500 – $52,800 | Sonoma County
Santa Clara
$18,000 – $57,600 | Santa Clara County
Pleasanton
$17,250 – $55,200 | Alameda County
San Anselmo
$18,000 – $57,600 | Marin County
Berkeley
$18,750 – $60,000 | Alameda County

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