The powder room, perhaps the smallest space in a house, presents the most possibilities.

“By nature, it is a small space, which is liberating,” said Sara Baldwin, founder and creative director of www.newravenna.com/“>New Ravenna Mosaics, a custom mosaic tile and stone company. “This is the perfect room to experiment with patterns and materials that you love. It is also the perfect room to use extra luxe materials because a little goes a very long way.”