Oxnard, Ventura County

Room Addition Cost in Oxnard, CA

Oxnard remodeling costs are nearthe California state average. Here's what a typical room addition costs in Oxnard in 2026, based on a 300 sqf project.

Budget
$57,000
$190/sqf
Mid-Range
$99,750
$333/sqf
High-End
$156,750
$523/sqf

Cost breakdown

Foundation & Framing
30%$29,925
Roofing & Exterior
15%$14,963
Mechanical (HVAC, Electrical)
15%$14,963
Interior Finishes
20%$19,950
Windows & Doors
10%$9,975
Permits & Engineering
10%$9,975

Breakdown based on mid-range estimate of $99,750

Typical Timeline
3-6 months
Permits Required

Building permit, structural engineering, possibly zoning approval.

Remodeling in Oxnard

Ventura County's largest city with affordable coastal living. Mix of older and newer developments. Agricultural roots keep some costs lower than neighboring cities.

A room addition adds square footage and value to your home. Costs depend on whether it's a simple bump-out, a second story, or a full wing addition with plumbing.

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Other projects in Oxnard

Kitchen Remodel
$28,500 – $85,500
Bathroom Remodel
$14,250 – $45,600
ADU / Guest House
$118,750 – $285,000
Roof Replacement
$11,875 – $35,625
Exterior Paint
$4,750 – $16,625
Whole House Remodel
$256,500 – $855,000

Room Addition cost in other California cities

Brentwood
$60,000 – $165,000 | Contra Costa County
Escondido
$54,000 – $148,500 | San Diego County
Saratoga
$81,000 – $222,750 | Santa Clara County
Pacifica
$72,000 – $198,000 | San Mateo County
Corte Madera
$72,000 – $198,000 | Marin County
Anaheim
$63,000 – $173,250 | Orange County
Millbrae
$72,000 – $198,000 | San Mateo County
Chula Vista
$57,000 – $156,750 | San Diego County

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