London’s Famous Seven-Foot-Wide ‘Gap House’ Is Now for Sale

At just seven feet and seven inches wide, the aptly named “Slim House” in London’s upward-trending Clapham neighborhood might be the narrowest slice of yuppie heaven. But the home, narrower than a train car, is actually more expansive than it seems, offering four bedrooms over 1,058 square feet.

The building first cropped up on design-savvy radars in 2013, not long after local firm Alma-Nac gave the space—an original “gap house,” meaning it’s squished between two larger buildings—a complete makeover. The company tacked an additional room onto each floor and added a sloped, skylight-pocked roof and a lush, 48-foot-long, landscaped garden. Custom shelving units line the skinny property, which helps sidestep storage issues.