Welcome to 251-253 McCosh! Discover the perfect blend of comfort, convenience, and potential in this spacious side-by-side duplex, ideally located just minutes from Montclair State University and the NJ Transit "Montclair Heights" Train Station- a commuter's dream at just .4 miles away! Each unit offers three levels of living space: the 1st floor offers a large living room, eat-in kitchen, half bath, a screened-in front porch, yard access off the kitchen and basement access off the living room. The 2nd floor offers 3 bedrooms and a full bath. The 3rd floor for each unit is accessed off the primary bedroom and is a perfect space for a home office, exercise room or rec room. Each unit offers separate utilities and a full basement, partially finished in one unit(251 McCosh), unfinished in the other(253 McCosh), but both allow for walkout access to the rear yard, and are a great space for storage. Whether you're looking to rent one unit and live in the other or focus solely on investing as Montclair State University is .3 miles away, this property checks all the boxes. With proximity to major transportation, schools, shops, and restaurants, this duplex, with a Montclair mailing address, is a rare find you won't want to miss!