For over 150 years, 12 Auburn Street has been part of Charlestown's neighborhood foundation. Set on a quiet residential street moments from Main Street and the historic waterfront, this brick brownstone offers a rare chance to own architectural legacy while shaping its next chapter. Spanning four levels and 3,350+ square feet, the home offers scale and structure emblematic of its era. Configured as a multi-family, it includes a garden-level residence with private front and rear access, while the upper levels live comfortably as a single-family. Features include three bedrooms, three and one half renovated baths, three marble fireplaces, an entertainment room, updated kitchen, private deck and patio. Includes one deeded garage parking space nearby and two transferable off-street spaces. Original character, enduring construction, and timeless appeal make this a rare Charlestown opportunity.