Originally built in 1910 and comprehensively renovated, expanded and reimagined, 49-51 Spring Street has been transformed to offer the quality, finishes and functionality of modern construction while retaining the established character of the original property. Offered together at $2,250,000, this distinctive two-unit property presents an exceptional opportunity for an investor, multigenerational family or owner-occupant looking to purchase the entire property, live in one residence and generate rental income from the other. Extensive improvements include durable fiber-cement siding, white oak flooring throughout the finished living areas, thoughtfully designed kitchens and baths, updated systems and carefully selected architectural details, including red oak inlay accents above the porch of each residence. Both units offer three levels of finished living space with four bedrooms, three-and-a-half bathrooms and two ensuite bedrooms, providing tremendous flexibility for families, guests and work-from-home needs. Each residence also features convenient second-floor laundry, private outdoor space and ample additional storage in its own clean, unfinished basement, which is not included in the stated living area. For an investor, the two residences provide the opportunity to generate income from the entire property; for an owner-occupant, the ability to live in one unit while renting the other creates an attractive way to offset ownership expenses; and for a multigenerational family, the configuration allows relatives to live close together while maintaining the privacy and independence of separate homes. Ideally located near Tufts University, Medford Square, Somerville and Cambridge, with convenient access to I-93 and Boston, 49-51 Spring Street combines extensive renovation, flexible ownership possibilities and an increasingly difficult-to-find two-unit configuration.