Take a 3D Tour OR Enjoy a Video Walkthrough 24/7! Welcome to 10 Osprey Ln on Masons Island in Mystic, one of southeastern Connecticut's most desirable private coastal communities. Set on a low-traffic cul-de-sac, this 4 BR, 2.5 Bath Coastal Colonial offers 2,190 SF plus an enclosed 3-season room, 2-car garage, full unfinished basement & attic storage. The home sits above the flood zone, so no flood insurance is required. Masons Island offers private roads, scenic walking trails, water access, a seasonally staffed gatehouse, community activities, possible seasonal mooring/dock opportunities & optional Yacht Club membership with tennis, pickleball, swimming, bocce, clubhouse, playground & private beach access. Major improvements include propane-fired Hydro-Air HVAC w/ central A/C, replacing the original electric heat, plus an owned solar system. Outdoor features include a bluestone rear patio, brick front patio, outdoor shower & fenced garden area. The functional layout offers an ideal canvas for a custom Kitchen tailored to your style, while the setting delivers the coastal lifestyle Buyers seek near Mystic, Stonington Borough, marinas, dining, shopping & the Connecticut shoreline. Book your private showing today!"