Whether your vision is to Move-in, Renovate, or Custom Build from the ground up, this water-view coastal property is for you! Currently home to a classic 1,569 sq. ft. coastal ranch built on an oversized .42-acre water-view parcel, the true value of this premier Residential District A property lies in its exceptional dimensions, rare zoning advantages, and all the possibilities that come with the largest water-view coastal lot in South Cove! Situated in Old Saybrook's most protected and prominent corridor, 18 Old South Cove Road provides the rare opportunity for you to embrace your dream of living by the water and realizing your vision of Moving-in, Renovating, or Custom Building a "Luxury Estate" where privacy and scenic integrity are guaranteed by zoning. As one of the largest parcels in the protective Gateway Zone, you are granted 15% building coverage. This translates to a massive potential footprint of approximately 2,744 sq. ft., allowing for a custom build that far exceeds the scale of neighboring homes. And by leveraging the 35-foot (2.5 story) scale-up potential, you have the incredible opportunity to capture dramatic, unencumbered panoramic sunrises and water views of South Cove. With Residence A designation, this lot represents the perfect 'Coastal Canvas' for a luxury home up to 4,000 sq. ft. featuring 3-car garage, sweeping verandas, and all the best in coastal living!