Cope Linder designed the Waldorf-Astoria planned for Phila.

As Inquirer staff writer Suzette Parmley reported in this morning's Business section, more luxury condominium units and hotel rooms are planned for Center City.

The Waldorf-Astoria Hotel & Residences Philadelphia is the name of the 58-story tower being developed by Ardmore's Mariner Commercial Properties Inc., local cable fortune heir Brook J. Lenfest and Dallas' Gatehouse Capital Corp. It would be Center City's sixth-tallest building.

The architect of the 670-foot tall structure is Cope Linder Architects, the firm that has been working on the plans for the SugarHouse Casino on the riverfront. Lead architect is David Ertz, who also designed the condo tower at 1706 Rittenhouse Square St.

The Boston firm of Frank Nicholson Inc. is handing the interior design of the175-room hotel.

You can take your time booking a room. It won't open until 2012.