This beautifully appointed North Buffalo 2-unit gem delivers 1,325?sf per unit of well-designed living space. Featuring 3 bedrooms and 1 full bath in each unit, separate utilities, and fully updated kitchens, this property shines. The top-floor unit impresses with original hardwoods, natural light, and functional layout. The lower unit enjoys a similarly inviting layout. Shared unfinished basement offers storage and expansion potential. Recent upgrades include a new roof (4 years), energy-efficient windows, and kitchen refreshes—making this a low-maintenance investment. The curb appeal is undeniable, with a private driveway leading to a 1-car garage and a tropical-inspired backyard oasis—complete with deck, lush greenery, and intimate seating—perfect for renters or homeowners-loving entertainment spaces. Nestled in the highly sought-after North Park/Hertel district—nicknamed the “Diamond of Buffalo”—this property offers proximity to Hertel Avenue’s Little Italy, where family-owned delis, award-winning restaurants like Wellington Pub, artisan shops like Korona Jewelry, and the historic North Park Theatre await Minutes away from 350-acre Olmsted-designed Delaware Park—buffalo’s river-studded crown jewel—and an easy commute via NFTA bus and Metro Rail—this listing combines passive income potential with owner-occupier appeal in the city's most dynamic pocket . Whether you’re searching for a turnkey rental asset or a lifestyle property with extra income, 135 Hartwell is your North Buffalo Diamond.