Rare opportunity to own a legal two-family duplex in the Hauppauge School District, a property type that is extremely limited and seldom available. This approximately 2,416 sq ft mid-block, cul-de-sac duplex features an expanded oversized blacktop driveway providing ample off-street parking and two separate private entrances. The first-floor unit (approx. 1,216 sq ft) offers three large bedrooms, hardwood floors throughout, living room, dining room, a chef's kitchen with white cabinets, white appliances, center island, and extensive cabinet and counter space, a hallway bath with tub/shower and white vanity, plus access to a full basement that is partially finished with tile flooring, an additional full bathroom with a stand-up shower, and a separate outside entrance. The second-floor unit (approx. 1,200 sq ft) features hardwood floors throughout, fresh paint, large bedrooms with ceiling fans, abundant closet space, formal living and dining rooms, an updated spa-like hallway bath with glass tub and shower, and a chef's kitchen with white cabinets, tile backsplash, and ample cabinet and counter space, along with custom molding throughout. The roof was replaced approximately five years ago, the property is heated by one oil-fired boiler, and the landlord currently pays heat, water, and yard maintenance. Both units include separate outdoor patio space, each unit has a portion of a garage bay and access to an attached storage shed. Tenants are in place through July 1 with rents well below market at $2,400/month for the first-floor unit and $2,300/month for the second-floor unit, tenants pay electric, presenting a clear value-add opportunity with strong cash flow upside. Calling all investors and long-term buy-and-hold enthusiasts seeking a rare income-producing asset.