Guest House

The tree house is just big enough for a desk and a chair, with a generous window looking into the leaves.

Technically, this small building is not a tree house, since it’s braced at the ground by supports, but Grey didn’t want to compromise the tree, which “doesn’t have a very long lifespan,” the designer says. “So, I didn’t want to jeopardize however long that tree had with any excess baggage.”

The two new buildings create a courtyard-like feel in the small urban backyard.