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43 West 21st Street is a five story condominium completed in 1910 in the Flatiron District, between Broadway and Sixth Avenue. Its most distinctive residence is a penthouse duplex arranged over two levels, with private south facing terraces and a skylit stair connecting the floors. The building has three residences and a recently renovated lobby and hallways.
The apartments are lofts with high ceilings, oversized windows, and a mix of exposed or whitewashed brick and wood flooring. Full floor layouts reach approximately 2,055 square feet, with north and south exposures, while the duplex introduces a different configuration with living areas below and bedrooms above. Wood burning fireplaces, central air conditioning, and in unit laundry recur among the residences, along with renovated kitchens and bathrooms.
Building amenities include a furnished, landscaped roof deck with views toward NoMad and Chelsea, as well as a virtual doorman. The building sits near Madison Square Park and the restaurants, bars, shops, and food market around the Flatiron and NoMad districts. The 28th Street stations serve the N, Q, R, W, 1, and 2 trains.
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