Sophisticated Colonial Retreat with Resort-Style Backyard. Just one mile from East Haddam Town Beach and moments from the Connecticut River, Goodspeed Opera House, and scenic trails, this exceptional 4-bedroom, 3.5-bath Dutch Colonial offers over 4,000 square feet of refined living space. A dramatic two-story foyer with custom millwork is flanked by a formal dining room and private office with fireplace. The home opens into a spacious great room with a fireplace and chef's kitchen, perfect for entertaining, along with a sun-filled sunroom featuring an additional fireplace. A mudroom with secondary staircase sits off the kitchen, leading to the immaculate three-car garage with epoxy floors and custom built-ins. Upstairs, the primary suite features a gas fireplace, private balcony, walk-in closet, and spa-like bath with soaking tub, dual vanities, radiant heated floors, and tiled radiant heated shower. Two generous bedrooms share a full bath, while a third large bedroom comes en-suite. The finished lower level includes a gym, workshop, game room with bar, and storage. Outside, enjoy a heated gunite pool with spa, stone patio, fire pit, and tiered perennial gardens. A detached outbuilding offers additional car and equipment storage or future pool house potential. An adjacent 1.11-acre approved building lot is included, great to keep for extra space or to build on. A rare lifestyle opportunity not to be missed!