Stirrup Key is one of Marathon's most established gated communities offering residents a private community boat ramp with immediate open water access, and this is a rare opportunity to own a newly completed custom-built modern pool home by the highly respected local builders, Design Center. Unlike many areas of the Florida Keys, Stirrup Key is a true residential community with no weekly vacation rentals, creating a more private and consistent neighborhood environment without constant turnover or short-term rental traffic. This stunning 3-story residence offers 5 bedrooms, 5 full baths and 3,467 sqft of living space with multiple rear balconies overlooking the water views and surrounding tropical setting. Designed with both luxury and durability in mind, exterior highlights include a long modern paver driveway leading to the enclosed garage plus covered carport for additional parking, EV charging station pre-wire, concrete block construction, poured solid columns, metal roof, spray foam insulation, hurricane impact windows and doors throughout and pre-wiring for a future home generator. The thoughtfully designed floorplan allows convenient ground-level entry adjacent to the garage. The custom kitchen features solid wood soft-close cabinetry with 42' uppers, cabinet crown, LED under-cabinet lighting, quartz counters, upgraded plumbing fixtures, modern backsplash and GE Profile appliances. Each bath offers custom tile floors, designer tiled showers with frameless glass and upgraded mirrors, lighting and fixtures. Additional interior features include 10ft ceilings, 8ft solid core doors with modern hardware, LED recessed lighting throughout, 5' baseboards, zero-maintenance luxury vinyl plank flooring throughout and expansive closets in all bedrooms. The backyard was designed for entertaining with a custom heated concrete pool featuring a pebble finish, sunshelf, color-changing LED lighting and a travertine paver deck. There is ample room to park a boat trailer or RV.