There’s a lot about the building at 112 Spring St. in Saratoga Springs that will take visitors back to when it was School No. 4. These days, School No. 4 is known as 112 Spring Street, and is home to a variety of businesses, many of them art-related or environmentally friendly. “I wanted to do something a little different with this building, so we saved all the footprints from the old classrooms and kept as much of that old school feel that we could,” said Glaser, who purchased the property in 2004 and in 2007 won an Excellence in Historic Preservation Award from the Preservation League of New York State. “We put in the carpeting, but we kept some of the old desks and blackboards. We wanted to make it a special place.” The building was built between April and November of 1911, and to help celebrate its 100th birthday a reunion will be held Sunday, Oct. 2, from 2 to 4 p.m. All former students, faculty members and other employees are invited to attend.