Modern and minimalist, warm and inviting, your brand new construction RARE and massive 3500 square foot Penthouse duplex up home offers 4 beds, 3.1 baths, and multiple bright, expansive living spaces + 1600 additional square feet of private outdoor roof deck space. A delicate and intentional balance of everyday living and entertaining inside this all-masonry corner structure, higlighted by the South and West facing floor to ceiling windows and doors, seamlessly blends day into evening. Interior features include soaring 9.5-foot ceilings, exquisite chef's kitchen with an oversized island and custom two-toned, flat panel cabinetry, two built-in fireplaces adorned by custom tile and textured surrounds, radiant heated floors and an impressive spa-like primary bathroom featuring a deluxe steam shower with separate 67" soaking tub, dual vanities, towel warmer, sealed off water closet, and 8-foot solid core doors. Complimented by an exclusive selection of porcelain & ceramic tile, quartz countertops with full height backsplash and waterfall edges, Grohe & Hansgrohe fixtures, 6.5" wide plank engineered hardwood floors, Thermador & Bosch appliances, pot filler, and high end light fixtures and hardware. Generous sized family room recreation space upstairs plus storage galore truly make this feel like a single family home. Discover unique and thoughtful design choices not often seen in spec homes: Rare and elegant recessed baseboards, invisible frame interior doors, and jumbo outfitted walk-in primary closets plumbed for an additional washer & dryer. Boutique builder Property People has taken meticulous measures to minimize sound from nearby train, including the installation of European-made, triple pane commercial grade windows and doors, manufactured with the newest technology in energy efficiency, expanding closed cell foam insulation, triple layer drywall with blown-in insulation and sound channel in the ceilings for zero vibration and noise between floors, and sound-deadening underlayments throughout. Succumb to the convenient, covered balcony with stained concrete floors for easy morning reads, reflection, and sips of your favorite tea or coffee. Or retreat to your rooftop oasis--which features gas, water, and electric--and spans almost the entire building. Savor every season with the fully enclosed custom wet bar, ample cabinetry, built-in beverage fridge, tile backsplash and floating shelves, made even better by an exterior integrated Coyote gas grill, timeless James Hardie cladding, and durable tile paver flooring. Includes one secure parking spot in the garage equipped for electric vehicle charging. Additional easy monthly permitted parking available right across Nelson St. at the Masonic Advocate Hospital's new garage. Walk to CTA Brown & Purple lines.