Tribeach Holdings is planning a 46-story residential condominium tower on the northwest corner of Eighth Avenue and 46th Street.

The proposed building will have about 250 apartments and has been designed by Fegan/Berg/Architects P.C., of which William F. J. Fegan and Christopher E. Berg are principals. Mr. Fegan is also a principal of Tribeach Holdings, whose other Manhattan developments include 160 Wooster Street, 129 Lafayette Street, 61 North Moore Street, and 25 Bond Street.

The address of the planned building is 301-7 West 46th Street and 733-763 Eighth Avenue.

The building's tower is set back on the south and east on a base that extends most of the way from 46th to 47th Street. The design of the base is distinguished by vertical notches and the first floor of the tower is indented slight to give the appearance of floating. The tower itself has a facade mostly composed of punched windows with three panes. The tower has only two setbacks at the top two floors.

Apartments will range in size from 660-square-foot one-bedroom units to 1,300-square-foot, two-bedroom apartments to penthouses with about 5,000-square feet. Ceiling heights are 10 feet.

The building will have a 5,400-square-foot health club and about 20,000-square feet of commercial space on the first and second floors. It will also have an "annex townhouse building that complements the historic Restaurant Row" between Eighth and Ninth Avenues that will contain 3,060 square feet of restaurant space on the ground floor, a 1,800-square feet catering hall on the second floor and 2,800-square feet of preparation area in the cellar.

The new tower is directly across Eighth Avenue from another major planned residential condominium tower on the former site of McHale's restaurant on the northeast corner at 46th Street.

Calls to TriBeach and Fegan/Berg by CityRealty.Com today were not returned.