Direct Waterfront Building Lot in Masons Island Private Association. Rare opportunity to purchase the only direct waterfront building lot currently available on The Island. Located within the Masons Island Private Association at the coveted southern end of the island, this .55 acre approved parcel offers approximately 250 feet of direct waterfront on Mystic River / Mystic Harbor, positioned at the entrance to the river with sweeping water views and a premier coastal setting. The property is fully approved and ready for development, including approved house plans for a 2,963 sq ft, three-bedroom residence, approved dock plans for a 33′ Fixed Pier, 19′ Gangway and 16′ Float and, 305 feet of approved seawall/retaining wall plans. Water depth is approximately 3′ at Mean Low Tide (MLT). An A-2 survey, architectural renderings, approvals, and prior perc test results are available for review-significantly reducing permitting timelines and offering a clear path to build. Surrounded by an enclave of fine homes, this magical island setting provides exceptional privacy, natural beauty, and close proximity to Mystic’s renowned dining, shopping, marinas, and cultural attractions. Optional membership to the MI Yacht Club may be available; initiation and acceptance are not guaranteed. A truly exceptional and irreplaceable waterfront offering-build new in one of southeastern Connecticut’s most exclusive and tightly held coastal communities, where opportunities like this are seldom available.