The property is located on what may be Philadelphia’s most bustling corner, 18th and Walnut Streets. The majestic twelve–story One Rittenhouse has been respectfully transformed with stylish, up–to–the–minute interiors while preserving the building’s magnificent historic facade. Ideally located on the eastern side of Rittenhouse Square—the gem of the five open–space parks planned for the city by William Penn during the late 17th century—one can cross over Walnut Street and head into the park for an afternoon of reading or sunbathing, taking a break for an espresso or coffee at the trendy café La Colombe, or heading east, take a walk to Broad Street and the Rafael Vinoly–designed Kimmel Center for the Performing Arts, home to the outstanding Philadelphia

Rittenhouse Square is one of the five original open-space parks planned by William Penn and his surveyor Thomas Holme during the late 17th century.
Originally called Southwest Square, Rittenhouse Square was renamed in 1825 after David Rittenhouse, a descendant of the first paper-maker in Philadelphia, the immigrant William Rittenhouse. William Rittenhouse's original paper-mill site is known as Rittenhousetown, located in the rural setting of Fairmount Park along Paper Mill Run. David Rittenhouse was a clockmaker and friend of the American Revolution, as well as a noted astronomer; a lunar crater is named after him.

Today, the tree-filled park is surrounded with trendy shops, fine restaurants, luxury apartments and two hotels, including a five-star. Its green grasses and benches are popular lunch-time destinations for workers in Philadelphia's Center City neighborhood, while its lion and goat statues are popular gathering spots for small children and their parents. The park is also a gathering spot for some of the more unfortunate residents of Philadelphia; many homeless citizens reside in the park and bathe in the fountains.