Room Additions

Mar Vista Room Addition: Expand Your Living Space 2026

February 11, 2026

12 min read

By ESV Prime Construction Team

Add square footage to your Mar Vista home. Room additions, second stories, and bump-outs.

Mar Vista original tract homes were built for smaller families. Room additions let you gain space.

Mar Vista Addition Costs

Ground-floor addition (300-500 sq ft): keywords: ['room addition studio city', 'home addition toluca lake', 'second story addition', 'contractor studio city', 'studio city remodeling', 'toluca lake contractor', 'home expansion san fernando valley'],

},50,000-$250,000

Ground-floor addition (500-800 sq ft): $250,000-$400,000

Second-story addition (400-600 sq ft): $300,000-$450,000

Expand your Mar Vista home. Call ESV at (818) 883-8753!

Written & Reviewed by

Ari, Licensed General Contractor

Founder & CEO, ESV Prime Construction Specialists, Inc.

With over 20 years of hands-on experience in residential construction across Los Angeles County, Ari holds California Contractor's State License #1065151 (Class B General Building). Every article is based on real project experience and current LA County building codes to ensure homeowners get accurate, actionable information for their construction projects.

CSLB #106515120+ Years Experience500+ Projects Completed