Plans for the Waldorf Astoria Residences St. Petersburg, a 49-story tower set to become the city’s tallest building, have been significantly revised. The mixed-use luxury condominium tower, to be located at 150 2nd Avenue South in downtown St. Petersburg, has undergone a dramatic redesign, now featuring new architectural plans by Miami-based CUBE 3. Initially designed by New York-based SLCE Architects, the changes represent a shift in the project’s vision, with CUBE 3 stepping in to reshape the iconic structure. The project is a joint venture between Miami’s Property Markets Group and the City Center office building owners, including Feldman Equities, City Office REIT, and Tower Realty Partners.