Old Lyme, Connecticut Marinas for Sale

Old Lyme occupies the eastern bank at the mouth of the Connecticut River where it meets Long Island Sound, a position that gives marina operators dual access to protected river cruising and open-water passages toward Block Island, Montauk, and Long Island's North Fork. In early 2026, DiMillo's Yacht Sales acquired the former Old Lyme Marina, adding a travel lift, heated indoor and outdoor storage, and deep-water dockage for vessels up to 60 feet — marking the company's eighth location and underscoring institutional interest in the lower Connecticut River corridor. River Landing Marina offers 50-plus floating dock slips on the Four Mile River, while Black Hall Marina serves the angler and paddlesport segment. The Connecticut River estuary is designated a "Wetland of International Significance" under the Ramsar Treaty, which constrains new waterfront development and protects existing marina entitlements.

Old Lyme, Connecticut currently has 1 marina listing tracked by Marina Deal Flow. 1 has a publicly listed asking price.

The listed marina in Old Lyme has an asking price of $2.3M.

The Old Lyme marina market offers approximately 94 total slips across 1 property.

Our database includes 4 recent marina transactions in Connecticut, providing comparable sales data for buyers evaluating the Old Lyme market.

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For more context, read our guides on how to value a marina, price per slip benchmarks, and our first-time buyer's guide.