Chelsea | New York

The Twenty1

Developed by The Amirian Group, The Twenty1 is a 12-story luxury condominium development in New York’s vibrant Chelsea neighborhood. Located at 117 West 21st Street, the newly constructed building is comprised of nine boutique residences.

The interiors, designed by GRADE New York, are elegant and modern, with open floor plans, premium fixtures, and high-end materials. The stonework flows effortlessly throughout the space in a stylish, neutral color palette. Taj Mahal Brazilian quartzite was used for the kitchen and pantry countertops in a sleek, high-honed finish. The master bathrooms are elegant and bold with vein-cut Silver travertine walls paired with Shadow marble flooring and vanity tops. A Turkish beige marble was used in the secondary bathrooms, while the powder rooms feature an exotic Silver onyx. Classic Stone is also supplying limestone and marble for the lobby, corridors, and entryways.

The logistics of the stone supply process was complicated, with eight different stones sourced from four different countries. In addition to stone sampling, sourcing, and delivery, our team is also providing installation services for the kitchen and pantry countertops.

The model unit was unveiled in the fall of 2017, while the remaining residences and common areas are in the final phases of construction.

Photos provided by famous New York real estate broker, Ryan Serhant.

Square Feet

Interior Stone


The Amirian Group


Designer: GRADE New York

Contractor: Wonder Works Construction


Taj Mahal Quartzite
Silver Travertine
Silver Onyx
Shadow Marble
Light Burdur Beige Marble
Aero Cream Limestone
Belgian Grey Porcelain
White Wood Marble


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Classic Stone has redefined stone supply to offer an unparalleled experience for customers with vision-specific needs of every size and location. Our RPSS Advantage Model and quarry-to-project service approach were developed with you in mind, and our stone experts are ready to guide you every step of the way through the process. Take the first step today- get in touch.

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