Architect Frank Weise’s Carriage House in Philly Lists for $3.5 Million

Tucked away on a quiet, cobblestoned street in Philadelphia’s Rittenhouse Square neighborhood, a true architectural gem has come available. Designed by the late, celebrated architect Frank Weise, this striking five-story townhome—once a 19th-century carriage house— is now designated a historic landmark by the city. And for $3.5 million, it could be yours. 

Weise, who played a major role in shaping Philadelphia’s architectural identity in the latter half of the 20th…