One of a kind at Union Square, this 1,709 sq. ft. residence is located in the former boys' gymnasium of historic Union High School. It features the only continuous 24 ft. floor to ceiling window, filling all three levels with natural light and opening to a private balcony. The flexible layout offers 3 bedrooms, 2.5 baths, exposed brick, custom bookshelves, heated primary bath floors, a jacuzzi tub, and in unit laundry. Includes a private garage plus gated parking. Enjoy a rooftop pool, hot tub, fitness center, and clubhouse, just two blocks from Bridge Street and four blocks from the new Amway Stadium opening in 2027. For investors, the home has generated nearly $240,000 in rental income, earned a 4.96 Airbnb rating from 542 reviews, and most recently leased furnished for $5,000 per month. Rentals of 30 days or longer are permitted, and a turnkey furniture package is available. A rare landmark home and proven income property in one of Grand Rapids' fastest growing area!Some homes have a story. This one has a legend. Before it was the most distinctive residence at Union Square, Unit 224 was the boys' gymnasium of Union High School ??? the 1870s landmark that educated Grand Rapids' west side for nearly a century. When Pioneer Construction converted the school into 180 condominiums, one unit inherited the gym's crown jewel: a 24-foot floor-to-ceiling wall of glass that fills three stories with light and frames the downtown skyline. No other home in the building has it. No other home in West Michigan has anything like it. One home, one owner, twenty years of care. This unit has been held by its original owners since the building's 2006 conversion ??? and unlike most "meticulously maintained" claims, this one comes with receipts! A private garage plus assigned gated parking ??? in a neighborhood where parking is fast becoming the scarcest amenity of all. Building amenities: rooftop pool and hot tub with skyline views, fitness center, and clubhouse. The location is a 2027 headline you can buy in 2026. The $175M, 8,5