Glendale, Los Angeles County

Room Addition Cost in Glendale, CA

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

Budget
$63,000
$210/sqf
Mid-Range
$110,250
$368/sqf
High-End
$173,250
$578/sqf

Cost breakdown

Foundation & Framing
30%$33,075
Roofing & Exterior
15%$16,538
Mechanical (HVAC, Electrical)
15%$16,538
Interior Finishes
20%$22,050
Windows & Doors
10%$11,025
Permits & Engineering
10%$11,025

Breakdown based on mid-range estimate of $110,250

Typical Timeline
3-6 months
Permits Required

Building permit, structural engineering, possibly zoning approval.

Remodeling in Glendale

Glendale's hilly terrain can add foundation and grading costs. The city has invested in streamlined permitting for ADUs, making it one of the easier LA-area cities for accessory dwelling construction.

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 Glendale

Kitchen Remodel
$31,500 – $94,500
Bathroom Remodel
$15,750 – $50,400
ADU / Guest House
$131,250 – $315,000
Roof Replacement
$13,125 – $39,375
Exterior Paint
$5,250 – $18,375
Whole House Remodel
$283,500 – $945,000

Room Addition cost in other California cities

Carlsbad
$66,000 – $181,500 | San Diego County
Mission Viejo
$63,000 – $173,250 | Orange County
Daly City
$72,000 – $198,000 | San Mateo County
Novato
$69,000 – $189,750 | Marin County
Hillsborough
$84,000 – $231,000 | San Mateo County
Ross
$84,000 – $231,000 | Marin County
Pomona
$54,000 – $148,500 | Los Angeles County
San Diego
$60,000 – $165,000 | San Diego County

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