Master Bath (left): The Hsus decided not to have a tub, preferring a big steam shower with a teak floor. The double sinks are Flaminia, with Hansgrohe fixtures and Duravit mirrors and base cabinets. The walls are mosa romain, a tile made from a mix of stone and porcelain that is less high-maintenance than natural stone.

Kids' Rooms (right): The Hsu girls’ bedrooms and bathroom are white on white on white. All the color comes from toys, bedding, and whimsical and removable touches like these WallCandy DottiLicious decals.