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The website for a 7-story, mid-block, residential condominium development at 123 West 15th Street in Chelsea maintains that it "offers a limited collection of residences representing an avant-garde take on postmodern expressionist design...where surfaces are active and right-angles are few."

The project, which is being developed by Terrapin Industries LLC, of which Colin and Pamela Rath are principals, is notable for its large rounded balconies and very large, rounded cantilevered element over the four-story residential building at 121 West 15th Street that has been incorporated into the development.

The roof of the penthouse has "dancing" chimneys.

The website proclaims that the project draws "on multiple inspirations - aeronautical, geological, planetary - playfulness with arcilinearity is the hallmark of 123," adding that "in a nod to New Orlean Franco-Spanish architecture, whirling ironwork adorns each home's private and extensive outdoor space."

The development also includes a turntable garage and geothermal heating.

The apartments have wood-burning fireplaces, many curved walls and private elevator entry.

A one-bedroom, one-bath unit with 1,027 square feet of interior space and 233 square feet of interior space. It is priced at $1,595,000.

A two-bedroom, two-and-a-half bath duplex has 2,054 square feet of interior space and 649 square feet of exterior space. It is priced at $2,995,000.

A three-bedroom, three-bath triplex apartment has 3,220 square feet of interior space and 1,987 square feet of interior space.

An article entlted "Not In My Front Yard" by Fred A. Bernstein in the June 17, 2007 edition of The New York Times quoted Robert Boddington, a neighbor, as described the project's bulbous penthouse as "an alien pod that landed on the roof."

The Raths live in an apartment with a two-story waterfall and an 18-inch deep "river" with 10 koi, according to the Times article, at 121 West 15th Street and demolished the adjoining property, which had about a dozen tenants, some of whom they bought out. The article said the Raths, who are expanding their apartment into the new construction, call the project "Valhalla." It also said the penthouse triplex is being marketed for $6,600,000.

According to plans on file with the Department of Buildings, Stanley Gendel is the architect.
Architecture Critic Carter Horsley Since 1997, Carter B. Horsley has been the editorial director of CityRealty. He began his journalistic career at The New York Times in 1961 where he spent 26 years as a reporter specializing in real estate & architectural news. In 1987, he became the architecture critic and real estate editor of The New York Post.