The building had been approved to a height of about 800 feet (240 m).[71][lower-alpha 2] Though the City Center Tower was to be New York City's tallest residential tower upon its construction, Eichner cited a study that "proved" the top of the tower would not cast shadows on the street.[75] He described the tower as a "quintessential New York skyscraper", compared to the "undistinguished" glass-clad office buildings on Madison and Park Avenues.[76] Eichner received $157.5 million in construction financing.[4][77] Both Eichner and his lawyer Howard Horenstein donated several thousand dollars to Mayor Ed Koch, who had voted in favor of the tower.[78] The donations were investigated in an ethics probe in 1987.[79]