A rare and storied offering in the heart of historic Society Hill, the design of this 1844 townhouse is attributed by architectural historians as the work of Thomas U. Walter, the architect behind the dome of the United States Capitol. Known as the Griffin Balcony Townhouse for its signature cast-iron balcony long missing, later traced to Bucks County, and reinstalled on the faade. This four-story residence with basement and attic offers an extraordinary opportunity, available to the market for the first time in over 60 years. Step inside to discover 13-foot ceilings, a multi-story atrium and circular openings that draw natural light deep into the home, creating a sense of openness and flow through every level a striking architectural gesture rarely found in a home of this era. Original marble facing, fine woodwork, interior shutters, and historic detailing have been preserved, alongside exposed wood beams, wood floors throughout, and four working fireplaces that lend warmth and character to the interiors. A rare residential elevator serves the primary floors, offering long-term accessibility within a home of remarkable historic integrity. Currently configured as an elegant triplex, the home offers 6 bedrooms, 4 full baths, and 1 half bath distributed across the four floors and basement well-proportioned living spaces with flexibility rarely found in a property of this stature. Beyond the interiors, a walled and deep rear garden and upper terrace create a true sanctuary a private outdoor retreat in the heart of the city, featuring slate salvaged from the original sidewalk during the 1960s streetscape renewal, a tangible link to the neighborhood's storied preservation history. 234 S 3rd Street presents three compelling paths forward for its next owner: Restore as a single, grand Society Hill residence reclaim the full scale and grandeur of this landmark home as an extraordinary single-family showplace. Maintain a high-end multi-unit configuration up to three refined residences, ideal for multi-generational living or investment income. Pursue a prime luxury condo conversion capitalize on Society Hill's premium market with individually sold luxury units in a building of unmatched historic significance. Steps from the Delaware River waterfront, Independence National Historical Park, and the cobblestone streets of Society Hill, this is a once-in-a-generation opportunity to own a true piece of American architectural history and to write its next chapter.