what is the cost of a new bathroom
1 According to an annual construction cost survey by Remodeling Magazine, a mid-range remodel of a 5x7-foot bathroom averages $14,109-$18,864; for an upscale expansion of a 5x7 bathroom to 9x9-feet within the existing house footprint, costs run $46,865-$59,456. According to an annual construction cost survey by Remodeling Magazine, a mid-range remodel of a 5x7-foot bathroom averages $14,109-$18,864; for an upscale expansion of a 5x7 bathroom to 9x9-feet within the existing house footprint, costs run $46,865-$59,456.