Discover urban convenience & suburban charm at 4 Mason Street. This spacious 3 bedroom, 1.5 bathroom, half-duplex gem offers the best of both worlds, boasting proximity to downtown Hudson while maintaining a serene residential ambiance. The bright living room with a bay window and hardwood floors invites warmth and comfort. Enjoy the oversized kitchen with French doors leading to the deck and fenced yard, plus main-level laundry. ½ bath is tucked in the hall between the kitchen and living room. Upstairs, find 3 generous bedrooms and a full bath with bidet, including a door connecting to the main bedroom. The lower level offers 2 finished rooms. Lots of storage throughout this entire home. This self-managed 2-unit building boasts no condo fee, with shared master insurance and individual flood insurance. Hot water tank replaced in 2021. Great location with nearby highway, just a stone's throw over the Assabet River to one of the Hudson hot spots at “The Landing at Hudson Mills” and more.