The James Charnley Residence, also known as the Charnley-Persky House, is a historic house museum at 1365 North Astor Street in the Gold Coast neighborhood of Chicago, Illinois. Built in 1892, it is one of the few surviving residential works of Louis Sullivan.
The house is owned and operated as a museum and organization headquarters by The Society of Architectural Historians. It was designated a National Historic Landmark in 1998, and is listed on the National Register of Historic Places.
Wikipedia https://en.wikipedia.org/wiki/James_Charnley_House
Coordinates 41°54'27.594" N -87°37'39.127" E