A Once in a Lifetime Offering! Introducing Penthouse #401 at Halcyon Siesta Keyan extraordinary coastal sanctuary where architectural brilliance meets unparalleled exclusivity. This is not just a residence; its a legacy. Set atop a boutique, six unit Gulf front building, Penthouse #401 is the first and only unit ever to be offered for salea true rarity as timeless and coveted as the quartz crystal sands of Siesta Key Beach, just beyond your expansive floor to ceiling windows. Enter through a private elevator into your own foyer and be instantly captivated by panoramic views of the Gulf of Mexico. Encompassing 3,525 square feet, this residence was masterfully designed to blend modern sophistication with relaxed coastal luxury. At the heart of the home lies a chefs kitchen that redefines gourmet living: top of the line Wolf appliances, double ovens, dual sinks, an oversized island, built in wine fridge, walk in pantry, coffee bar, and bespoke cabinetrycrafted for both grand entertaining and effortless everyday living. The open concept layout flows gracefully through dining and living spaces, enhanced by polished terrazzo flooring and Lutron controlled lighting and shades that adjust with the touch of a button. Wake up to shimmering Gulf views in the tranquil primary suite, a true retreat offering a spa like en suite with radiant heated floors, dual vanities, a sculptural soaking tub, and an oversized glass enclosed shower. Step outside to a spectacular 674 sq. ft. wraparound balconyideal for morning espresso, sunset cocktails, or simply soaking in Siesta Keys year round beauty. Three additional guest suites provide private en suite baths and generous closet space, while a full laundry room, powder bath, and abundant storage complete the homes thoughtful layout. A private two car garage ensures convenience and securityan invaluable feature in this exclusive enclave. Life at Halcyon is curated for ease and elegance, with upscale amenities including on site maintenance, a historic clubhouse, beachfront pool, grilling station, fire pit, and private beach access. Just minutes from Siesta Key Village and Sarasotas cultural and culinary delights, this location offers the perfect blend of privacy and accessibility. Penthouse #401 is more than a luxury residenceits a one of one opportunity to own a piece of Gulf front history on Floridas most treasured beach.