Welcome 25 4th ave, a meticulously maintained 2023-built Colonial offering 4 bedrooms, 3 bathrooms, and a 2-car garage on a beautifully landscaped .46-acre lot in one of Billerica's desirable neighborhoods, with direct access to a private forest. Thoughtfully upgraded by its original owners, this move-in ready home features gleaming hardwood floors, elegant marble-tiled bathrooms, granite countertops, stainless steel appliances, a spacious kitchen with a welcoming center island, and a formal dining room perfect for entertaining. The newly finished walk-up attic adds two versatile bonus rooms ideal for a home office, playroom, or guest space. The finished lower-level bonus room with wall-to-wall carpeting provides additional flexible living space for a media room, recreation area, or fitness room. Outside, enjoy the rear deck, patio, and beautifully maintained grounds. Three-zone heating and cooling complete this exceptional home that showcases true pride of ownership.