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Stunning $3.5M Modernist Townhome Hits the Market in Rittenhouse Square

Stunning $3.5M Modernist Townhome Hits the Market in Rittenhouse Square

A historic 19th-century carriage house in Rittenhouse Square, designed by renowned Philadelphia architect Frank Weise, is now on the market for $3.5 million. This landmark home seamlessly blends classic and modernist design, making it a rare gem in the city’s luxury real estate market.

Weise, a key figure in Philadelphia’s architectural evolution, purchased the home in the 1950s and transformed it into a live-work space in 1966. The lower floors served as his studio, while the upper levels became a living showcase of his modernist vision.

Featuring a brick facade with arched windows and an innovative three-story mansard-style roof, the property is described by listing agent Franz Rabauer of Kurfiss Sotheby’s International Realty as “a work of art.”

Now a designated historic landmark, this one-of-a-kind home offers a rare opportunity to own a piece of Philadelphia’s architectural history in one of the city's most sought-after neighborhoods.

The home’s mansard “roof” conceals three floors of living space. Thomas Donkin

A striking spiral staircase with multicolored inlays winds through this meticulously restored modernist townhome in Rittenhouse Square. Featuring double-height ceilings, expansive arched windows, and a sleek gas fireplace, the residence offers a unique fusion of historic charm and contemporary design.

Originally transformed by renowned architect Frank Weise, the home was later fully restored by his daughter, Andrea Hemmann, and her husband, master carpenter Mark Gallini. Their renovations included HVAC upgrades, metal restoration on the mansard roof, and a full modernization of the space. Previously serving as both a private residence and design studio, the property embodies sophisticated live-work luxury.

Perched above the surrounding rooftops, the townhome delivers breathtaking city views while maintaining a sense of secluded elegance—truly a sculptural masterpiece in the heart of Philadelphia.

Four long rows of arched windows make up the brick facade. Atop that, Weise built three floors of living space within an extended mansard roof in metal. Thomas Donkin

Spacious & Thoughtfully Designed

This 2,698-square-foot, five-story townhome boasts three bedrooms, two bathrooms, and dual kitchens—one in the upper living quarters and a partial kitchen on the ground floor. Situated on a 1,013-square-foot lot, the home seamlessly blends modern luxury with historic charm.

Exclusive Amenities & Breathtaking Views

Enjoy panoramic skyline views from the lower-level living space and entertain in the top-floor sunroom with a private bar. A dedicated parking space adds convenience—an invaluable perk in Philadelphia.

Prestigious Rittenhouse Square Address

Nestled in one of Philadelphia’s most affluent neighborhoods, Rittenhouse Square offers walkability, fine dining, world-class shopping, and a vibrant cultural scene. Home to business moguls and pro athletes, the area has also been a backdrop for Hollywood films, including Rocky II and The Happening.

With Philadelphia International Airport just 8 miles away and private aviation access 15 miles northeast, this exceptional property offers both luxury and accessibility in the heart of the city.

 

Work with Sean

Sean has an established sales business in the Philadelphia, Main Line, and Jersey Shore markets. He’s also a leader in the Keller Williams Main Line office and at the regional level. These connections are the reason that Sean has a dependable referral network with clients and real estate agents alike.

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