Long Beach, Los Angeles County

Room Addition Cost in Long Beach, CA

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

Budget
$60,000
$200/sqf
Mid-Range
$105,000
$350/sqf
High-End
$165,000
$550/sqf

Cost breakdown

Foundation & Framing
30%$31,500
Roofing & Exterior
15%$15,750
Mechanical (HVAC, Electrical)
15%$15,750
Interior Finishes
20%$21,000
Windows & Doors
10%$10,500
Permits & Engineering
10%$10,500

Breakdown based on mid-range estimate of $105,000

Typical Timeline
3-6 months
Permits Required

Building permit, structural engineering, possibly zoning approval.

Remodeling in Long Beach

Long Beach's mix of bungalows, mid-century homes, and coastal properties creates diverse remodeling needs. Proximity to the port means material delivery is efficient, keeping costs slightly below LA proper.

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.

Have estimates for your Long Beach project?

Upload them and get an AI-powered comparison with CSLB license verification. Free.

Compare Estimates →

Other projects in Long Beach

Kitchen Remodel
$30,000 – $90,000
Bathroom Remodel
$15,000 – $48,000
ADU / Guest House
$125,000 – $300,000
Roof Replacement
$12,500 – $37,500
Exterior Paint
$5,000 – $17,500
Whole House Remodel
$270,000 – $900,000

Room Addition cost in other California cities

Larkspur
$75,000 – $206,250 | Marin County
Manhattan Beach
$75,000 – $206,250 | Los Angeles County
West Hollywood
$72,000 – $198,000 | Los Angeles County
Palm Desert
$57,000 – $156,750 | Riverside County
Burlingame
$78,000 – $214,500 | San Mateo County
Poway
$60,000 – $165,000 | San Diego County
La Jolla
$72,000 – $198,000 | San Diego County
Foster City
$75,000 – $206,250 | San Mateo County

Get a personalized estimate

Use our interactive cost estimator to adjust square footage and see detailed pricing for your specific project.

Open Cost Estimator →