The building at 8 Gramercy Park South has a unique aspect: it is one of only two rental properties allowed key access to the park. The area along the park is nearly impossible to find an apartment, as many of the buildings have been landmarked and owners are long-term residents.

Built in 1940, the six-story building features 55 residences and three office spaces. ¾In 2008 real estate developer Stonehenge Partners, which specialized in high-end rentals in generally all-condo neighborhoods, purchased the building along with 141 East 33rd Street for $83 million. Gramercy represented $28.9 million of the total sale and was purchased from the trust of philanthropist Harold Steinberg and his late wife Mimi. The purchase was part of the developers Stonehenge Fund III Limited Partnership, a $500 million equity fund it had formed the previous year to invest in multifamily properties, which also includes 141 East 33rd Street and 555 Sixth Avenue. -NR