The entryway leads into the living room, and a low wall hides the staircase that leads to the lower level from view.

Designed by Belgium architectural studio OYO Architects, this 1,883-square-foot family residence in Maldegem, East Flanders, was conceived with a single green roof that meets the grass at ground level. The concrete base of the structure supports a lightweight timber frame, which was assembled in a local warehouse before being mounted on site. Different plants are grown on the green roof throughout the seasons.

2206 Parklands Lane, Saint Louis Park, MN 55416

Though this home is close to downtown Minneapolis, it sits on a quiet, 3.77-acre piece of land. When you approach the brick home, it immediately becomes clear that it’s a Frank Lloyd Wright-designed home—thanks to its wing-like shape and Cherokee Red-painted steps.

Completed in 1946, the Booth House was originally built for an advertising executive and his wife before becoming a rental property in 1955 for the architectural photographer Robert Damora, and architect Sirkka Damora. The Damoras later purchased the home and have lived there ever since. Now 93 years old, Sirkka has been seeking a new owner for this piece of architectural history. Litigation over the title means that the Booth House could face being torn down—so its buyer will also be its rescuer.

In this photo of the Diamond Street House taken by Julius Shulman, Lyster Brock (left) stands next to his brother on his father's roof truss.

The living room Ortal fireplace is clad in cold-rolled steel with a waxed finish. The side chairs, vintage reproductions from Room and Board, feature shapely walnut arms.