Experience rarefied luxury living in this spectacular half-floor penthouse atop the world-renowned Park Hyatt. Encompassing over 4,000 SQFT and framed by dramatic 12-foot ceilings, this custom-designed residence by celebrated architect Scott Himmel offers unobstructed panoramic views of Lake Michigan, the city skyline, and beyond-a true showcase of Chicago from every angle. Oversized windows span the full east, west and north, immersing the home in natural light and capturing postcard-worthy vistas from every room. Unfilled slabs of matched Roman travertine flooring and walls can be found throughout the home. Measuring over 900 square feet and offering expansive east-facing views of the lake, the oversized living room is an ideal setting for entertaining guests, showcasing your art collection, and enjoying serene sunrises each morning. The generous scale of the space allows for flexible furniture arrangements, creating distinct zones for lounging, while oversized windows flood the room with natural light, enhancing both the atmosphere and the panoramic views. This impressive room features book-matched rift cut white oak, wenge, English Sycamore and quarter sawn sapele millwork by Highland Park Millwork and custom V'SOSKE wool and silk carpet. The elegant formal dining room sits on the northeast corner with stunning views and features a hidden wine cellar with dual Sub-Zero wine refrigerators, seamlessly integrated behind bespoke millwork walls with handstitched leather complete with baseball stitching. Ideally situated between living and dining spaces, the Boffi-designed kitchen is both a work of art and a professional workspace, featuring marble counters, Terrazzo floors, custom storage, Miele, Gaggenau, and Sub-Zero appliances, two sinks, two dishwashers, an oversized island with stainless steel counters, and a wraparound breakfast bar. Step out onto your private balcony with gas and water, perfect for al fresco dining, an urban garden, or simply enjoying a glass of wine. A spacious family room with suede covered walls offers a relaxed retreat with a built-in wet bar, custom Parenti & Raffaelli millwork, and a thoughtfully tucked-away office nook. This space could easily serve as a third bedroom if desired. A Boffi-outfitted laundry room with stainless counters and two Miele washing machines and powder room complete the public wing of the residence. The primary suite is its own private sanctuary with sunset-facing city views, Sam Kasten Hand Weavers horsehair upholstered walls, plus Vellum wall behind bed, custom V'SOSKE wool and silk rugs, and a dramatic dressing room with custom cabinetry. The spa-like en suite bath clad in polished slabs of Verde marble a steam shower, custom stainless steel and marble tub, radiant heated marble floors, dual vanities with custom marble sinks, a separate water closet with Duravit toilet, Dornbracht faucets, and Nanz hardware. The second bedroom is equally refined with its own en suite bath featuring a floating glass sink and sleek finishes. Fully integrated with a Crestron Home Automation System, this penthouse allows for effortless control of lighting, climate, and automated drapery. Every inch of this home has been curated with the finest materials and finishes. Residents enjoy the exclusive services and amenities of the Park Hyatt Hotel, including 24-hour concierge and security, a state-of-the-art fitness center, indoor pool and spa, in-room dining, and access to the celebrated NoMi restaurant. Two assigned garage parking spaces in the attached private garage are included in the offering. This is penthouse living at its finest, combining sophisticated design, world-class service, and one of the most commanding views in all of Chicago.