| Calpine Center | |
| Coordinates: | 29.7616°N -95.3643°W |
| Completion Date: | 2003 |
| Opening: | November 10, 2003 |
| Building Type: | Office |
| Roof: | 453feet |
| Floor Count: | 33 |
| Floor Area: | 791135ft2[1] |
The Calpine Center is a 453 ft (138m) tall postmodern skyscraper in Downtown Houston, Texas. The building has 33 floors of Class A office space.[2] [3] The building has the world headquarters of Calpine Corporation.[4] Hines and Prime Asset Management jointly developed the building. The Houston office of HOK designed the building, and Turner Construction acted as the general contractor.[3] It is connected to the downtown tunnel system. Mark Russell of Studley, a real estate firm, said that the Calpine Center is more efficient than many of the tall office buildings built in Houston in the early 1980s.[5]
Originally Calpine intended to lease 300000square feet of space. By February 2003 Calpine announced that it would sublease some of the space to other firms.[6] The Calpine Center was scheduled for completion at the end of 2003. In July 2003 the space was 82% booked for occupation. Calpine and Burlington Resources, another energy company, leased space in the building; each company agreed to lease 250000square feet of space. In addition Jones Day agreed to lease over 50000square feet.[2] The building opened on Monday November 10, 2003. Other tenants that had occupied the building by its opening included Cheniere Energy Inc. and Hines's southwest region development office.[3] In 2004 Avalon Advisors LP agreed to lease 9385square feet of space in the building, bringing its occupancy level to 86%.[7]