The building was constructed in the style of . In the twilight of the Old Republic, the building, while not as tall or grand as 500 Republica, was Galactic City's most desired address outside the Senate District. At the time of his death in 32 BBY, Hath Monchar owned a suite on its 500th floor. Darth Sidious killed his master, Darth Plagueis, in the Kaldani Spires penthouse.
- The Complete Star Wars Encyclopedia