Redondo Beach, Los Angeles County

Room Addition Cost in Redondo Beach, CA

Redondo Beach remodeling costs are 10% abovethe California state average. Here's what a typical room addition costs in Redondo Beach in 2026, based on a 300 sqf project.

Budget
$66,000
$220/sqf
Mid-Range
$115,500
$385/sqf
High-End
$181,500
$605/sqf

Cost breakdown

Foundation & Framing
30%$34,650
Roofing & Exterior
15%$17,325
Mechanical (HVAC, Electrical)
15%$17,325
Interior Finishes
20%$23,100
Windows & Doors
10%$11,550
Permits & Engineering
10%$11,550

Breakdown based on mid-range estimate of $115,500

Typical Timeline
3-6 months
Permits Required

Building permit, structural engineering, possibly zoning approval.

Remodeling in Redondo Beach

South Bay coastal city with active renovation market. Coastal building requirements apply near the waterfront. More affordable than Manhattan Beach but still premium South Bay pricing.

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 Redondo Beach

Kitchen Remodel
$33,000 – $99,000
Bathroom Remodel
$16,500 – $52,800
ADU / Guest House
$137,500 – $330,000
Roof Replacement
$13,750 – $41,250
Exterior Paint
$5,500 – $19,250
Whole House Remodel
$297,000 – $990,000

Room Addition cost in other California cities

Sacramento
$54,000 – $148,500 | Sacramento County
Santa Monica
$72,000 – $198,000 | Los Angeles County
Newport Beach
$75,000 – $206,250 | Orange County
Vacaville
$54,000 – $148,500 | Solano County
Woodland Hills
$63,000 – $173,250 | Los Angeles County
West Hollywood
$72,000 – $198,000 | Los Angeles County
Union City
$66,000 – $181,500 | Alameda County
San Clemente
$66,000 – $181,500 | Orange County

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