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In recent decades, the Flatiron District has gradually shifted from primarily commercial and retail to a mixed-use residential area of high-priced real estate. While we cherish memories of the artistic Flatiron of yesteryear, characterized by artist lofts and unique design stores, change remains the only constant in New York City. However, the Ladies' Mile Historic District, established in 1989 and later expanded, has helped preserve much of the district's precious turn-of-the-century architecture.
As such, new construction in Flatiron is relatively rare, typically rising from the few vacant lots or replacing small or significantly altered existing buildings. The Landmarks Preservation Commission (LPC) approves new constructions' scale and exterior design, ensuring they either blend in with or enhance the immediate streetscape. One new development is the two-wing Louie, rising on a through-block site and comprising 16 West 18th Street (Louie XVIII) and 21 West 17th Street (Louie XVII), between Fifth and Sixth Avenues. Sales are underway at Louie XVIII.

In this article:

Louie XVII, 21 West 17th Street
Louie XVII, 21 West 17th Street Flatiron/Union Square
Louie XVIII, 16 West 18th Street
Louie XVIII, 16 West 18th Street Flatiron/Union Square
Flatiron sales data
Due to its central location, size, and quality of the units, and scarcity of new supply, prices are at the high end, with the first public availabilities starting at $2,700,000. All units are reached via private elevator access and feature floor-to-ceiling picture windows, private outdoor space, and beautiful oak floors throughout. Louie's kitchens feature Miele appliances, custom oak cabinetry, massive Virgil stone island, and brass and bronze fixtures. Luxurious primary bathrooms offer similar finishes, including imported marble slabs, oak vanities, and brass and bronze fixtures along with steam showers and deep soaking tubs.

Louie XVIII, #3 (Nest Seekers LLC)

Amenity sauna
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While there is more than enough to explore and enjoy in the surrounding area, in-house bells and whistles include a high-end fitness room, spa, sauna, cold plunge, and a lushly landscaped rooftop terrace with grills, lounge chairs, and endless city views. Louis is convenient to virtually every train line and many of the city's most acclaimed restaurants such as Eleven Madison Park and Union Square Cafe, to name but two. Other nearby attractions include Eataly, a new Chelsea Piers outpost, Madison Square Park, Union Square, and the High Line.
Exterior renderings of Louie Seventeen and Eighteen
In mid-2016, the LPC hesitantly approved the demolition of two pre-existing structures: a three-story office building from 1949 and a slightly altered two-story stable building. This two-wing condo project is being steered by Vinbaytel Development, and Morris Adjmi Architects and Li Saltzman Architects collaborated on the design of their replacement, creating two similar contextual facades that blend seamlessly with the district's imposing masonry architecture.

Louie XVII will rise 14 stories and have 13 units, while Louie XVIII is 10 stories tall with 8 units. Both wings will be clad in terra cotta, metal, and buff brick. There also will be robust horizontal metal spandrels, strong cornice lines, and oversized recessed windows in three and five groupings separated by horizontal slats. The two building wings will be connected via a common courtyard.
The two buildings demolished for Louie
16 West 18th Street (Louie Eighteen)
21 West 17th Street (Louie Seventeen)
Louie Eighteen at 16 West 18th Street as of late May 2024
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