Welcome to 43 Russell Street, a well-maintained 2-family home in the heart of Hamden's sought-after Spring Glen neighborhood. This is a rare opportunity for investors or owner-occupants seeking both character and modern updates in a prime location. The first-floor unit is a charming 2-bedroom, 1-bath home, currently occupied by a long-term tenant who pays on time and takes great care of the space. Featuring timeless charm and solid maintenance history, it's a turnkey rental opportunity. Upstairs, the second and third floors create an ideal owner-occupied retreat. The second level offers two spacious bedrooms, while the brand new 2023 third-floor addition creates a luxurious primary suite or flexible bonus space. Highlights include closed cell foam insulation in the attic (2022) for energy efficiency, a tankless boiler and hot water system (2017), and an upgraded electrical panel (2023). A brand-new LG washer and dryer (2024) complete the home. Additional upgrades include: First-floor unit: Tankless boiler and hot water (2018), electrical panel upgrade (2019) Second-floor unit: Tankless boiler and hot water (2017), electrical panel upgrade (2023) Attic insulation (2022) and upper-level addition (2023) Set on a one-way, tree-lined street just steps from local shops, restaurants, churches, and commuter routes, this home blends investment potential with personal comfort. Don't miss your chance to own in one of Hamden's most beloved neighborhoods.