Santa Clarita, Los Angeles County

ADU / Guest House Cost in Santa Clarita, CA

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

Budget
$125,000
$250/sqf
Mid-Range
$200,000
$400/sqf
High-End
$300,000
$600/sqf

Cost breakdown

Foundation & Framing
25%$50,000
Mechanical (HVAC, Plumbing, Electrical)
20%$40,000
Interior Finishes
20%$40,000
Exterior & Roofing
15%$30,000
Kitchen & Bath Fixtures
10%$20,000
Permits, Plans & Engineering
10%$20,000

Breakdown based on mid-range estimate of $200,000

Typical Timeline
4-8 months
Permits Required

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

Remodeling in Santa Clarita

North LA County suburb with mostly newer homes (1980s-2000s). Remodels tend to be cosmetic kitchen and bath updates. Hot summers make pool additions and outdoor shade structures popular.

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 Santa Clarita

Kitchen Remodel
$30,000 – $90,000
Bathroom Remodel
$15,000 – $48,000
Room Addition
$60,000 – $165,000
Roof Replacement
$12,500 – $37,500
Exterior Paint
$5,000 – $17,500
Whole House Remodel
$270,000 – $900,000

ADU / Guest House cost in other California cities

Sherman Oaks
$131,250 – $315,000 | Los Angeles County
Glendale
$131,250 – $315,000 | Los Angeles County
Pasadena
$137,500 – $330,000 | Los Angeles County
Beverly Hills
$162,500 – $390,000 | Los Angeles County
Palm Desert
$118,750 – $285,000 | Riverside County
Folsom
$118,750 – $285,000 | Sacramento County
Oxnard
$118,750 – $285,000 | Ventura County
Manhattan Beach
$156,250 – $375,000 | Los Angeles County

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