When code prohibited the addition of an entirely new master bedroom suite to this Cold Spring, New York, residence, Jennifer Marsh, of Mowery Marsh Architect, proposed that the client invest in an elegant new bathroom instead. Filled with natural light, this glassy addition connects the north-facing bedroom to the expansive Adirondack views beyond. The open connection between the two spaces provides more natural light to the bedroom, while a frosted-glass door rolls shut when the clients need privacy.

The bathroom’s operable windows, French doors, and glass shower door can all open up to let outside air permeate the space. “The clients wanted to feel as though they were truly outside,” says Marsh. Interior mahogany floors, ceilings, and a large vanity mirror that reflects the Adirondack greenery continue this blend of landscape and architecture and are accented by creamy limestone countertops. Directly outside the bathroom, a stone terrace opens onto the surrounding woodlands, allowing the clients to step out into the New York countryside.