On a narrow lot in Pittsburgh, a new building is three stories tall but only about 16 feet wide. The shape is based in part on the constraints of the lot—it’s not uncommon for houses in the ...

The world's skinniest house is ready to be lived in. At just five feet wide and a total of 46 square feet, this Warsaw, Poland apartment just might be the thinnest apartment in the world ...

The diminutive Grande S1 can physically open up to expand to an impressive 20-foot-wide width, making it a prefab tiny home that literally breaks out of the usual tiny house footprint.

The floor plans show an indoor footprint of just about 12 feet wide at its widest by about 26 feet. The lot size is listed at 423 square feet, which means WYSIWYG when it comes to a yard -- a ...

04-11-2011 design A High-Rise House That’s Only 12 Feet Wide The impossibly thin “Family House” in Barcelona makes your average supermodel look like a Sumo wrestler.

But from the side, the railroad-style duplex measures just four-and-a-half feet wide. The house, which was built in 1925, is currently for sale , listed at $499,000.

So the two men made a 10-foot-wide house instead. "To be honest, the builder almost built this out of spite just because of that fact," Wetherhold told Business Insider . "'Oh, you don't think we ...