The cost further increases if the bathroom is part of a home addition.

Cost to add a bathroom addition. Average basement bathroom addition cost: The overall cost for adding a bathroom in a basement will range somewhere between $3,000 and $25,000. The average room or house addition costs $86 to $208 per square foot, with most homeowners spending between $22,500 and $74,000.

Whether you plan to build an addition and add a bathroom or convert an existing space, this can be a costly job. If so, the average cost to add a bathroom ranges between $5,000 to $15,000. A bathroom addition can range from a small.

Cost to add a master suite: If you add additional 300. 4 rows bathroom addition cost.

Converting an existing room is far less expensive than installing. Cost to add a half bath. The average cost of adding a bathroom.

The average bathroom addition cost is $15,000, but this price can vary greatly depending on the square footage and the features you want to add. As a result, the typical. A bathroom addition in the existing space will be a lot cheaper than building out a brand new space for a bathroom.

Whether a single light for the bathroom addition or a set, the cost typically ranges from $175 to $1,000. Homeadvisor says that adding a bathroom to the existing. Half bathroom additions in an existing space often cost between $5,000 and $15,000.