RARE ST. CLAIR RIVER WATERFRONT BUILDING OPPORTUNITY! Construct a luxury residence or duplex (zoned R3) utilizing an existing engineered foundation that previously supported a 3,048-square-foot custom home. The former residence featured four bedrooms, five baths & panoramic St. Clair River views. Existing city water and sewer connections remain available, creating the potential for substantial savings in both construction time & foundation costs, subject to purchaser verification & municipal approvals. Seller has an engineered plan & site review to share with you! Whether you envision a timeless historic-inspired residence or a custom luxury waterfront retreat, this is an incredible opportunity to own one of the area's few remaining buildable riverfront parcels. Enjoy stunning sunrises, world-class ship watching & the charm of Port Huron's historic riverfront district--all just minutes from downtown dining, marinas, parks, and the Blue Water Bridge. MORE PHOTOS TO COME!