Jefferson Duplex transforms a traditional rowhouse into a thoughtfully modernized two-family residence, pairing historic urban character with clean contemporary updates. The project preserves the building’s classic masonry façade and ornamental cornice detailing while refreshing the structure’s presence along the street. Internally, the property was reconfigured to accommodate two large apartments. Careful planning maximized spatial efficiency, while substantial systems and life-safety upgrades brought the building to current standards.