3719 N Janssen Avenue Stunning and well-maintained two-flat in the heart of the Southport Corridor/ Blaine School. The owner's duplex-up spans the second and third floors with four bedrooms, two updated baths, and two bedrooms on each level. The bright main floor features a generous living room with high ceilings and a sunny kitchen with an island, gas cooking, and newer appliances. Two private decks and exclusive use of the beautifully landscaped backyard with paver patio provide exceptional outdoor space. The first-floor two-bedroom, one-bath apartment offers central heat and air, a private rear deck, basement storage, and free laundry. Two-car garage. Set on a tree-lined, community-focused block just steps from Southport Avenue, the Brown Line, shops, restaurants, Blaine, and an easy walk to Wrigley Field.