Pomona, Los Angeles County

ADU / Guest House Cost in Pomona, CA

Pomona remodeling costs are 10% belowthe California state average. Here's what a typical adu / guest house costs in Pomona in 2026, based on a 500 sqf project.

Budget
$112,500
$225/sqf
Mid-Range
$180,000
$360/sqf
High-End
$270,000
$540/sqf

Cost breakdown

Foundation & Framing
25%$45,000
Mechanical (HVAC, Plumbing, Electrical)
20%$36,000
Interior Finishes
20%$36,000
Exterior & Roofing
15%$27,000
Kitchen & Bath Fixtures
10%$18,000
Permits, Plans & Engineering
10%$18,000

Breakdown based on mid-range estimate of $180,000

Typical Timeline
4-8 months
Permits Required

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

Remodeling in Pomona

Inland LA County with affordable remodeling costs. Arts district revitalization is driving residential renovation. Many older homes with strong value-add renovation potential.

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 Pomona

Kitchen Remodel
$27,000 – $81,000
Bathroom Remodel
$13,500 – $43,200
Room Addition
$54,000 – $148,500
Roof Replacement
$11,250 – $33,750
Exterior Paint
$4,500 – $15,750
Whole House Remodel
$243,000 – $810,000

ADU / Guest House cost in other California cities

Hayward
$131,250 – $315,000 | Alameda County
Encino
$137,500 – $330,000 | Los Angeles County
Walnut Creek
$143,750 – $345,000 | Contra Costa County
Union City
$137,500 – $330,000 | Alameda County
Oakland
$150,000 – $360,000 | Alameda County
Vacaville
$112,500 – $270,000 | Solano County
Chula Vista
$118,750 – $285,000 | San Diego County
Glendale
$131,250 – $315,000 | Los Angeles County

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