Home Additions FAQ

Have questions about home additions? We have answers for your Home Additions FAQ​!

How Much Will My Home Addition Cost in the Bay Area?

The average cost to build a Home Addition or add a room is $80,000.  A room addition costs from $350 to $500 per square foot depending on the room size, materials, labor, location, and if you’re building-up or out.

How Much is an Additional Master Bathroom?

For a master bathroom addition, you will pay between $50,000 to $100,000 or $62,500 on average. Adding a bedroom and bathroom to your home typically falls in the $80,000 to $120,000 range, depending on the materials and location.