EXQUISITE home in desirable cul de sac neighborhood with spectacular addition and chic designer touches throughout! Open layout ~ incredible sunken Family Room addition features rich coffered ceiling, beautiful custom fireplace & mantel, unique custom lighting and a wall of glass overlooking private patio & back yard. Gorgeous expanded chef's kitchen with custom island, charming window seat, granite, stainless appliances, spacious dining area and pantry for expresso bar & 2nd frig. Elegant expanded Master Retreat w/ fabulous dressing room, cathedral ceiling, hardwood flooring, built-ins, private balcony & luxurious designer bath! Formal Dining room, Living room, 1st floor office and finished basement (additional 512 sq ft of living space not included in the 3440 listed). This magnificent home offers sophisticated architectural detail and upgrades for the most discerning buyer! Top Southborough Schools & less than 1/4 mile to the commuter rail!