Average cost of a small bathroom addition:

New bathroom addition cost. The total labor cost of installation for a new bathroom is $1,200 to $5,500. The good news is that this remodel doesn’t have to cost a fortune. The average cost of adding a bathroom.

The cost to add a bathroom will largely depend on whether you are adding a bathroom to an existing space or adding an addition. Luxury installations might run up to $600 per square foot for a new bathroom addition. Cost to add a second story:

Cost to add a master suite: On average, it costs $200 to $300 per square foot to add a bathroom onto your home. The cost further increases if the bathroom is part of a home addition.

The average bathroom addition cost runs to $15,000, with homeowners spending between $5,000 and $35,000. Homeadvisor says that adding a bathroom to the existing. The overall cost for adding a bathroom in a basement will range somewhere between $3,000 and $25,000.

For a modest bathroom, your new addition can cost up to $250 per square foot on average. A bathroom addition in the existing space will be a lot cheaper than building out a brand new space for a bathroom. 7 rows the average cost to add a bathroom addition to an existing space is $7,600.