Ariel West is one of two tall residential condominium towers erected in 2007 by the Extell Development Company across from one another on Broadway between 99th and 100th Streets.

It is a 31-story tower with 73 apartments at 2633 Broadway and it was designed by Cook & Fox. It has a few setbacks and a slab form. It is a mid-block site that was formerly occupied by a Gristede s store that collapsed during demolition injuring several pedestrians.

It is across Broadway from Ariel East, which is 37 stories and has 64 apartments and was designed by Cetra/Ruddy. It has 7 setbacks facing Broadway and is distinguished by its reflective-glass façade with red "piping" accents.

Extell names many of its projects after stars.

The two towers, which were completed in 2007, have significantly altered 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.

The two Extell towers created considerable controversy and led to a rezoning of 51 blocks between 96th and 110th Streets where building heights were limited to 145 feet on Broadway and the transfer of air rights from side-streets was forbidden.

A March 5, 2006 article by William Newman in The New York Times said that Extell bought 19,148 square feet of development rights for Ariel West in April, 2006 from the owners of four townhouses on 99th Street...