2410 HARBOURSIDE DRIVE 151 Under contract-accepting backup offers. This corner 3 BR / 3½ BA + Family Room Penthouse in Marina Bay on Longboat Key offers 3, 825 sq. ft. of comfortable living with exceptional views of Sarasota Bay and tropical landscaping. A private elevator opens to a bright, open floor plan with tray ceilings, neutral finishes, and walls of glass that bring the outdoors in. The spacious living room extends to a wrap-around terrace, ideal for dining or relaxing. The formal dining area with wet bar connects to the updated kitchen, featuring custom cabinetry, stone counters, stainless appliances, a center island, and breakfast nook. The split-bedroom layout provides privacy, with a primary suite that includes bay views, terrace access, a custom walk-in closet, and a bath with dual vanities, soaking tub, and glass shower. Two guest suites each have their own baths and generous closets. Marina Bay has new roofs and includes 2 under building parking spaces. Marina Bay offers tennis and pickleball courts, heated pool & spa, on-site management, and 24-hour security. Ownership also includes deeded access to the Bay Isles Beach Club. For those seeking more, optional membership to the Longboat Key Club provides access to championship golf, a world-class marina, tennis, spa, dining, and social amenities.