Rarely available, and well loved through generations, this handsome, four bedroom and two bath, brick two-family home on coveted Auburn Street offers nearly 2,600 square feet of living space and an additional 917 square feet of unfinished basement space, providing an extraordinary opportunity for an investor, contractor, or end-user to build equity or seamlessly convert to a single-family residence. Set on a picturesque, tree-lined street, the building features a grand entry foyer, tall ceiling height throughout, large windows that flood the rooms with natural light, and a blend of rich original oak and pine floors. The oversized first-floor, one bedroom and one bath apartment offers a spacious 900 square feet layout, featuring formal living and dining room parlors with pine floors, a full bath with tub, and an inviting kitchen that opens onto a private deck, which leads to a large, fenced in yard waiting to be brought back to a lush sanctuary. The “owner’s” unit is an impressive three bedroom and one bath, 1,600 square feet upper duplex with a spectacular front living room parlor with white marble mantel, ornate ceiling medallion and crown molding. A formal dining room parlor flows to the updated kitchen featuring stainless appliances and quartz countertops. A full bath with tub and a separate laundry room/pantry complete this level. The upper level offers three bedrooms, plus study, bathed in light from front and back windows and a skylight. This home is close to all Charlestown has to offer with great parks, local dining, shopping, and transport to downtown Boston.