Tucked away on over 1.8 serene acres along the Charles River, this custom oversized Colonial is a private retreat offering rare flexibility, luxury, and efficiency. Ideal for multigenerational living, it features six-bedroom septic capacity, a potential lower-level in-law suite, and upstairs caretaker’s quarters/secondary suite. A chef’s kitchen anchors the main level with granite counters, stainless steel appliances and an commercial grade Viking hood vent. The first-floor primary suite and vaulted family room impress with grand scale, warmth, and custom detail. Built with 6" sidewall construction, soundproofed walls, elegant trim, and a whole-house generator, every detail reflects thoughtful craftsmanship. Enjoy fresh air circulation, two zones of geothermal heating/cooling, and a new high-efficiency heat pump with propane backup. Located just minutes from I-495, shops, and dining—this one-of-a-kind property offers refined living with unmatched privacy and convenience.