From the striped exterior with a tubular turret to the red metal handrail on the winding, three-story staircase and a rounded screen porch that cantilevers over the lip of a ravine, “it was totally original,” said Janet Borden, who represented the house along with fellow Compass agent Allison Silver.

The kitchen is nearly all white, in the “Euro kitchen” style of the era, and a window bay combines triangular and circular geometry into a wedge shape, typical of the complicated geometrical forms used in design at the time. Throughout the house, most walls and ceilings are crisp white, to better showcase pops of primary color.

Built in 1987 for Ellen and Richard Levy, according to the Lake County recorder of deeds, the house was designed by Michael Pado, a student of Mies van Der Rohe. Pado’s own home, in a Mies building in Streeterville, came on the market recently at $949,000.

The buyers are not yet identified in public records and the agent who represented them, Sara Brahm of Baird & Warner, did not respond to requests for comment.

The house is on about two-thirds of an acre, overlooking a ravine. Pado designed its footprint to around three old trees on the site, Borden said.