West Hollywood, Los Angeles County

ADU / Guest House Cost in West Hollywood, CA

West Hollywood remodeling costs are 20% abovethe California state average. Here's what a typical adu / guest house costs in West Hollywood 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 West Hollywood

Dense, design-forward city with high-end renovation demand. Many condo and apartment renovations alongside single-family projects. Strict building codes and active design review.

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 West Hollywood

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

Mission Viejo
$131,250 – $315,000 | Orange County
San Carlos
$156,250 – $375,000 | San Mateo County
San Francisco
$168,750 – $405,000 | San Francisco County
Campbell
$150,000 – $360,000 | Santa Clara County
San Rafael
$150,000 – $360,000 | Marin County
San Anselmo
$150,000 – $360,000 | Marin County
Palo Alto
$168,750 – $405,000 | Santa Clara County
San Marcos
$118,750 – $285,000 | San Diego County

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