This is a very rare opportunity! Set on one of the city's most fashionable streets, this is the northmost home on Astor. Its unique position on the block with oversized windows overlooking the Cardinal's mansion and Lincoln Park ensures the home is flooded with natural light. This one-of-a-kind mid-century modern home was designed by Chicago architect I. W. Colburn. It was later gut renovated with an Art Deco-themed interior by two prestigious Chicago firms: Marvin Herman & Associates and Suzanne Lovell Inc. Today, this home offers approximately 6,500 sqft of sophisticated living space, fabulous private outdoor space, and garage parking for two cars. The interior finishes are of exceptional quality; they include stained custom hardware, millwork, and cabinetry, hand-cast plaster moldings, a curved staircase with artisan fabricated bronze and steel balusters, three distinctive gas fireplaces, inlaid rift-sawn white oak, limestone and marble floors, custom paint by Donald Kaufman, vellum wall coverings, and much more. An elegant foyer with a walk-in coat closet, climate-controlled wine closet, and guest bath with a hand-carved marble sink welcomes you into the home. Up one flight, the main level includes a living room with a wet bar and built-in Miele coffee maker, a separate dining room, a spectacular, highly upgraded kitchen with a built-in banquet, a den/office with a white alabaster fireplace, and an adjacent roof deck. A jewel in the home, the large north-facing terrace is accessible from the living and dining rooms. The upper level includes a luxurious primary suite with a spa bath that includes a tub carved from a single piece of Noir St. Laurent marble and P.E. Gueren hardware. A 2nd en suite bedroom and a family room/3rd bedroom, with another full bath, are on this level. Curved rear stairs lead down to a separate street-level suite ideal as a home office or guest/in-law suite. This suite also has an entrance off the historic Wooden Alley, allowing guests to visit without entering the main residence. Features include knotty pine paneling, a kitchenette, ample closets, an en suite full bath, and French doors that open to a Koi pond. The home's landscaping was designed by award-winning Scott Byron & Co. Mechanical features include four zoned heating and central air conditioning, central humidification, dual water heaters, a security system, and smart home functionality. This home could not be reproduced for anywhere near our asking price. Ideally located by the park, lakefront, and downtown, this exceptional Gold Coast home is for the buyer who wants the very best!