A house in Kansas City designed by revered architect Frank Lloyd Wright is available for $1.65 million.

The house dates to 1939, which makes the design remarkably forward-thinking; in that way, it represents an unimpeachable argument that Wright was absolutely the father of the modern style. It’s known as the Sondern-Adler house, and was originally designed at just 900 square feet. When the home’s first owner sold the home, the new owners asked Wright to design a 2,000-square-foot expansion, effectively converting the cottage to a full-sized house suitable for a family.

Wright’s addition plans maintained the original style but expanded the living areas considerably. From the main living room, visitors will enjoy wood-paneled ceilings and walls, a statement-making brick fireplace, several narrow windows, and built-in bookshelves in nearly every room.

Potential buyers will likely be drawn to the home’s original kitchen as well. The impulse to renovate has generally been respectfully ignored, this classic residence features a mostly original kitchen complete with vintage appliances and a small island.

Outdoors, the home’s exterior design works entirely in concert with the living style, and features an expansive gravel terrace, plenty of deck space, and smartly manicured grounds.