Discover a unique property in Federal Hill, Baltimore, a National Register Historic District. This rare offering includes a late eighteenth-century flounder house and a converted barn, seamlessly connected by a charming brick courtyard. The main residence fronts Hamburg Street, while the barn faces Grindall Street, creating a secluded retreat that often goes unnoticed amidst the bustling neighborhood. Currently configured as two separate residences, the barn also offers excellent potential for a professional studio or workshop. This remarkable property, under a single deed, delivers on both history and opportunity. History enthusiasts will particularly appreciate 337 East Hamburg Street as the former Civil War residence of Union General Benjamin F. Butler. Legend has it that Butler held Confederate spies in the basement, where original jail cell bars are still visible today. Combined, the two residences provide six bedrooms and three and a half bathrooms. This versatile setup is ideal for multigenerational living, but with separate metering, it also presents an appealing option for renting out one of the spaces to offset expenses. The flounder house beautifully preserves its historic proportions and details while incorporating modern updates. The converted barn boasts exposed beams and impressive 22-foot ceilings, offering a blank canvas for various design possibilities. The sale includes architectural plans by Swanson and Associates AIA, illustrating opportunities to connect the buildings and expand the main residence. Adding to its appeal, the property includes up to four off-street parking spaces, three of which are tandem. Residents can also enjoy stunning views of Baltimore City from the nearby Federal Hill Park, perfect for dog walks. For DC commuters, the MARC Camden line is conveniently close. With the planned redevelopment of Baltimore's Inner Harbor underway, this location is poised to become even more sought-after.