A truly unique opportunity with exceptional flexibility, this landmark property offers multiple paths to ownership and value creation. Currently configured as two luxury residences, the property generates $414,000 in annual rental income, with Unit 1 leased at $18,000/month and Unit 2 leased at $16,500/month-making it an outstanding turnkey investment with proven cash flow. For end users, occupy one residence while generating substantial income from the other, create the ultimate multigenerational estate with separate yet connected living quarters, or restore the property to its original vision as one of Lincoln Park's most spectacular single-family homes. A Once-in-a-Generation David Adler Legacy Estate in the Heart of Lincoln Park. Beauty, prestige, and architectural pedigree converge in one of Chicago's most extraordinary residential offerings. Built in 1917 by legendary architect David Adler and designated a Chicago Landmark in 2016, this iconic Lincoln Park estate presents an exceedingly rare opportunity to own the entire Adler on the Park-an architectural masterpiece spanning over 16,000 square feet across four magnificent levels. Offered as both a remarkable single-family residence or an exceptional two-unit investment, the property seamlessly blends timeless historic grandeur with museum-quality restoration and uncompromising modern luxury. Behind its stately brick facade, a world of extraordinary craftsmanship unfolds. Original marble checkerboard floors, soaring coffered ceilings, restored millwork, hand-carved moldings, dramatic columns, intricate plaster detailing, and grand proportions evoke the elegance of Chicago's Gilded Age, while meticulous renovations have elevated every space for contemporary living. Private elevator access, multiple grand staircases, four wood-burning fireplaces, and five heated garage spaces provide a level of convenience rarely found in homes of this caliber. Designed for both intimate living and unforgettable entertaining, the residence offers an unrivaled collection of formal and informal gathering spaces. Elegant living rooms overlook Lincoln Park through oversized windows, while richly paneled libraries, dramatic family rooms, breathtaking rotundas, and multiple terraces create an effortless connection between architecture and landscape. A spectacular formal foyer introduces the home's historic character with its iconic black-and-white marble flooring and restored columns, setting the tone for interiors that feel equally suited for Architectural Digest and timeless family living. The two exceptional kitchens rival those found in the world's finest residences. Outfitted with custom cabinetry, Carrara marble, expansive islands, professional-grade Wolf, Miele, Thermador, and Sub-Zero appliances, integrated coffee stations, butler's pantries, and bespoke millwork, each was thoughtfully designed to accommodate both everyday living and grand-scale entertaining. Formal dining rooms, capable of hosting lavish gatherings, are framed by exquisite moldings, sparkling chandeliers, and picturesque park views. The home's nine bedrooms, six full baths, and three powder rooms provide remarkable flexibility for multigenerational living, guest accommodations, or private office suites. Luxurious primary retreats offer tranquil views over Lincoln Park and feature spa-inspired baths complete with soaking tubs, steam showers, dual vanities, and custom walk-in closets. Every bedroom reflects the same meticulous attention to detail found throughout the residence, where designer finishes, bespoke wall coverings, curated lighting, and restored architectural elements create an atmosphere of understated sophistication. Outdoor living is equally extraordinary. Multiple private terraces and rooftop retreats extend the home's living space into the skyline, offering sweeping views of Lincoln Park, the city, and the surrounding historic neighborhood.