Petro restored this 5,900 sf townhouse and carriage house into a single-family compound. Impeccably designed by TRA Studio architect, the 4-story townhome shares an interior courtyard with the carriage house. Petro introduced an underground corridor connecting the two buildings, complete with a wine cellar. The new stucco cladding of the townhome is scored to recall limestone, blending modernity with the historic surroundings.