CitySpire has a floor area of around 830,000 square feet (77,100 m2), and ten elevators rise the height of the building.[1] Before CitySpire was developed, the site was zoned to only allow a building of around 34 stories without any modifications.[26][27] Given the size of the lot, this would have provided up to 363,000 square feet (33,700 m2) of space.[27] Eichner obtained unused air rights above City Center, which only occupied a small amount of the maximum space allowed for its lot; this allowed a 60-story tower. On top of this, Eichner was allowed to increase the building's floor area ratio by 20 percent in exchange for renovating City Center.[27][28] This amounted to 128,000 square feet (11,900 m2) of extra space.[5] These bonuses allowed CitySpire to be more than twice as large as it ordinarily would have been.[27][29][30]