Renderings of the two condominiuim apartment towers that Extell Development Company has begun constructing facing one another on Broadway between 99th and 100th Streets indicate that they are very dissimilar.
The projects are known as Ariel East and Ariel West. Extell names it projects after stars.
Ariel East is a 37-story, 64-unit tower at 2628 Broadway designed by Cetra/Ruddy Incorporated and it features 7 setbacks facing Broadway and many corner windows.
Ariel West is a 31-story, 73-unit tower at 245 West 99th Street and 2633 Broadway designed by Cook & Fox and it has few setbacks and its slab from recalls that of 30 Rockefeller Plaza. It is a mid-block site that was formerly occupied by a Gristede's store that collapsed during demolition injuring several pedestrians.
The two towers will significantly alter the northern skyline of the Upper West Side that heretofore has been dominated by the Riverside Church at 120th Street and Riverside Drive, the Master Apartments on Riverside Drive at 103rd Street and the Columbia Apartments at 275 West 96th Street.
Extell is also developing the Orion at 350 West 42nd Street and the former Stanhope Hotel at 985 Fifth Avenue and Altair 18 and Altair 20, condo conversions in Chelsea at 32 West 18th Street and 15 West 20th Street, respectively. Gary Barnett, a principal of Extell, was a principal in the recent purchase of a large property at the southern end of Riverside South, the huge development by Donald Trump.
The projects are known as Ariel East and Ariel West. Extell names it projects after stars.
Ariel East is a 37-story, 64-unit tower at 2628 Broadway designed by Cetra/Ruddy Incorporated and it features 7 setbacks facing Broadway and many corner windows.
Ariel West is a 31-story, 73-unit tower at 245 West 99th Street and 2633 Broadway designed by Cook & Fox and it has few setbacks and its slab from recalls that of 30 Rockefeller Plaza. It is a mid-block site that was formerly occupied by a Gristede's store that collapsed during demolition injuring several pedestrians.
The two towers will significantly alter the northern skyline of the Upper West Side that heretofore has been dominated by the Riverside Church at 120th Street and Riverside Drive, the Master Apartments on Riverside Drive at 103rd Street and the Columbia Apartments at 275 West 96th Street.
Extell is also developing the Orion at 350 West 42nd Street and the former Stanhope Hotel at 985 Fifth Avenue and Altair 18 and Altair 20, condo conversions in Chelsea at 32 West 18th Street and 15 West 20th Street, respectively. Gary Barnett, a principal of Extell, was a principal in the recent purchase of a large property at the southern end of Riverside South, the huge development by Donald Trump.
Related Articles
Future New York
Views, Light, and Value: A Q&A with Kayla Lee on what today’s NYC buyers really want
Friday, July 24, 2026
Get To Know
Steals & Deals from $345K: Listings with "Motivated Sellers" or "Priced to Sell"
Friday, July 17, 2026
Get To Know
What the pied-à-terre tax could mean for Manhattan prices + NYC penthouse listings from $499K
Friday, June 12, 2026
Future New York
Above the Crowd: NYC apartments with skyline views as observation deck boom reaches new heights
Wednesday, June 10, 2026
Future New York
NYC's top 10 limestone buildings that exemplify architectural excellence + New developments continuing the tradition
Friday, June 5, 2026
Future New York
As Brooklyn condo prices rise, see 15 new and upcoming developments across the borough
Saturday, August 8, 2026
Great Listings
NYC apartments with leafy views as city sets 30% tree canopy goal
Saturday, August 8, 2026
Future New York
Top 10 Battery Park City buildings as waterfront resiliency efforts move ahead
Friday, August 7, 2026
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.
6sqft delivers the latest on real estate, architecture, and design, straight from New York City.
