Set on a quiet tree-lined street - just steps from Lake Michigan and the Magnificent Mile - this 3,800-square-foot, half-floor residence is located within a landmark 1920s co-op. This rare fourth-floor apartment enjoys treetop views, abundant natural light, generous wall space for art, and a gracious, well-proportioned floor plan seldom replicated today. Original architectural detailing is thoughtfully complemented by modern updates. A welcoming receiving hall introduces interiors defined by high ceilings, architectural moldings, hardwood floors, and stunningly scaled rooms suited to both formal entertaining and comfortable daily living. The living room, centered on a wood-burning fireplace, is framed by three windows offering treetop views and south facing light. An adjacent, discreet "secret" storage room provides additional functionality. The dining room overlooks the landscaped courtyard and garden below, creating a refined and tranquil backdrop for gatherings large or small. The DeGiulio-designed kitchen is appointed with: *Sub-Zero refrigerator and freezer *Six-burner gas range with grill and dual ovens *Two dishwashers *Warming drawer *Wine storage *Butler's pantry *Separate walk-in food pantry *Cove lighting and display shelving. Off the kitchen, three small rooms have been combined into a substantial space; ideal as a private office suite, guest quarters, children's playroom, media room; and/or fitness area. Side-by-side LG full sized washer/dryer area and a powder room are nearby. A handsome library, formerly the 4th bedroom, with built-in desk, bookshelves, storage, walk-in closet, and en-suite bathroom serves as a quiet and distinguished retreat. As you enter the bedroom foyer, to the south, the primary suite is bathed in light with generous multiple closets and an updated en-suite bath. To the north, two spacious bedrooms share an updated bath and walk-in closets. Unique to this building is a beautifully landscaped courtyard and garden-complete with dining tables, playground, dog run, and a grilling station-offering an inviting outdoor setting for entertaining or quiet enjoyment. This is a residence that preserves the grace of its era while offering the comfort and livability that define an exceptional home.