Mansard roof
Sproul's Cafe is set on the east side of Main Street in Bar Harbor's busy downtown area. It is a 2-1/2 story wood frame structure with a Mansard roof (the steep part now clapboarded), clapboard siding, and a granite foundation. The west-facing ground floor has a recessed center entrance, flanked by plate glass windows, which also line the recess. The second floor has a pair of projecting bay windows, between which a screened porch with balustrade has been added. The half-story under the Mansard roof has three gable-roofed dormers with sash windows.