Roseville, Placer County

ADU / Guest House Cost in Roseville, CA

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

Budget
$118,750
$238/sqf
Mid-Range
$190,000
$380/sqf
High-End
$285,000
$570/sqf

Cost breakdown

Foundation & Framing
25%$47,500
Mechanical (HVAC, Plumbing, Electrical)
20%$38,000
Interior Finishes
20%$38,000
Exterior & Roofing
15%$28,500
Kitchen & Bath Fixtures
10%$19,000
Permits, Plans & Engineering
10%$19,000

Breakdown based on mid-range estimate of $190,000

Typical Timeline
4-8 months
Permits Required

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

Remodeling in Roseville

Fast-growing Sacramento suburb with new and established neighborhoods. Slightly higher quality expectations than central Sacramento. Strong contractor availability.

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 Roseville

Kitchen Remodel
$28,500 – $85,500
Bathroom Remodel
$14,250 – $45,600
Room Addition
$57,000 – $156,750
Roof Replacement
$11,875 – $35,625
Exterior Paint
$4,750 – $16,625
Whole House Remodel
$256,500 – $855,000

ADU / Guest House cost in other California cities

Calabasas
$143,750 – $345,000 | Los Angeles County
Encino
$137,500 – $330,000 | Los Angeles County
Escondido
$112,500 – $270,000 | San Diego County
Murrieta
$112,500 – $270,000 | Riverside County
Elk Grove
$112,500 – $270,000 | Sacramento County
Santa Clarita
$125,000 – $300,000 | Los Angeles County
Santa Barbara
$150,000 – $360,000 | Santa Barbara County
Costa Mesa
$131,250 – $315,000 | Orange County

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