417A 17TH Street Unmatched luxury awaits in this brand new four-story townhome, situated on a peaceful tree-lined street in the heart of South Slope. Beautifully designed with exceptional attention to detail and top-tier finishes throughout, this one-of-a-kind residence offers 3 bedrooms, 4 full bathrooms, and 1 powder room. The main level features an expansive open-concept living, dining, and kitchen space bathed in natural light from oversized Anderson windows. The chef's kitchen is anchored by an oversized island with honed Vanilla Quartzite countertops, custom cabinetry, and a premium appliance package including Wolf, Sub-Zero, and Bosch appliances. Sliding glass doors open to a private fenced backyard with porcelain pavers and a built-in planter box, creating seamless indoor-outdoor living. A sophisticated powder room features limewash walls and a custom carved floating quartzite vanity with an integrated sink and Crosswater London fixtures. The second floor offers two generously sized bedrooms, each with custom built-in closets and desks, and its own full bathroom, both finished with custom vanities and Crosswater London plumbing fixtures. The entire third floor is dedicated to a serene primary suite featuring a fully built-out closet, custom storage, and a spa-like bathroom with Phylrich fixtures and a spacious rain shower. On the same floor, the roof deck offers privacy and the perfect space to unwind. The fully finished lower level features a separate entrance, two oversized storage closets, a full bathroom, and a full-size washer and dryer. Exceptionally versatile, this space is perfectly suited for a home gym, office, media room, playroom, guest suite, or an additional living area. Additional highlights include radiant heated floors on every level, wide-plank white oak flooring, nearly 9-foot ceilings throughout, a dramatic staircase with floating oak treads and low-iron glass railings, integrated interior and exterior speakers, internet access points on every floor, and a comprehensive smart security system including cameras, alarm system, and Akuvox intercom with smartphone connectivity. Perfectly positioned moments from the F/G trains, Prospect Park, Greenwood Cemetery, and the vibrant shops, restaurants, and cafes along 7th Avenue, this exceptional South Slope townhouse offers a rare combination of luxury, privacy, and convenience.