Daly City, San Mateo County

ADU / Guest House Cost in Daly City, CA

Daly City remodeling costs are 20% abovethe California state average. Here's what a typical adu / guest house costs in Daly City in 2026, based on a 500 sqf project.

Budget
$150,000
$300/sqf
Mid-Range
$240,000
$480/sqf
High-End
$360,000
$720/sqf

Cost breakdown

Foundation & Framing
25%$60,000
Mechanical (HVAC, Plumbing, Electrical)
20%$48,000
Interior Finishes
20%$48,000
Exterior & Roofing
15%$36,000
Kitchen & Bath Fixtures
10%$24,000
Permits, Plans & Engineering
10%$24,000

Breakdown based on mid-range estimate of $240,000

Typical Timeline
4-8 months
Permits Required

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

Remodeling in Daly City

Just south of SF with slightly lower costs. Dense, hillside neighborhoods with many 1950s-60s homes due for updates. Fog and moisture make exterior material choices critical.

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 Daly City

Kitchen Remodel
$36,000 – $108,000
Bathroom Remodel
$18,000 – $57,600
Room Addition
$72,000 – $198,000
Roof Replacement
$15,000 – $45,000
Exterior Paint
$6,000 – $21,000
Whole House Remodel
$324,000 – $1,080,000

ADU / Guest House cost in other California cities

Santa Barbara
$150,000 – $360,000 | Santa Barbara County
Sherman Oaks
$131,250 – $315,000 | Los Angeles County
Pomona
$112,500 – $270,000 | Los Angeles County
Oxnard
$118,750 – $285,000 | Ventura County
Huntington Beach
$137,500 – $330,000 | Orange County
Los Angeles
$131,250 – $315,000 | Los Angeles County
Santa Rosa
$137,500 – $330,000 | Sonoma County
Millbrae
$150,000 – $360,000 | San Mateo County

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