WSP USA has been contributing to the development of Kuala Lumpur City Center (KLCC) since the early 90s, when we provided MEP engineering for the site’s signature Petronas Towers, twin 88-story towers that were the tallest in the world from 1998 until 2004. Today, we are providing services for three new buildings on the site.



  • Kuala Lumpur, Malaysia


  • Commercial and Mixed Use
  • Property and Buildings
  • (View all)


Project Status

  • Completed, 1998 (Petronas Towers)


Petronas Towers

Phase I of the KLCC development included the Petronas Towers, which were built above a podium that contained a performing arts center, retail, an art and science museum, and a parking garage, as well as design of a central plant that serves the entire site.

WSP USA provided mechanical, electrical and plumbing (MEP) engineering for this first phase. The 30,000-ton central plant we designed features 12MW of cogeneration capacity using gas turbines to generate electric power, recovery boilers to efficiently produce high pressure steam and electric, and steam-driven chillers for site cooling requirements. The chillers use environmentally acceptable refrigerants to minimize potential hazards. The plant was later expanded to 60,000 tons to meet phase II and III requirements, and was configured to enable 100,000 ton hours of ice thermal storage in future phases.

Our engineers also designed site distribution for chilled water, electric power (including transformation), natural gas and telecommunications. The systems were designed with built-in redundancies, parallel and looped pathways to maximize utility service reliability.

The performing arts center in the podium features 1,000 seats, expandable to 2000. WSP’s MEP design included a constant volume system, energy recovery and humidity control to handle the local tropical climate. Under-stage storage areas contain humidity control and air conditioning. The atrium contains active solar temperature control and smoke exhaust systems. Movable partitions and ceilings are located within the facility for acoustical reverberation control. The performing arts center also has redundant electrical power and air conditioning.  

Lot C

Our work on the site continues today, with the 60-story residential building located on Lot C of the KLCC development site. The building's MEP systems comply with international standards, local codes and practices, and the master plan of the KLCC campus.

Energy saving and filtration systems will reduce energy costs and improve indoor air quality of the facility. The building’s glass and orientation will be optimized to meet the programmatic requirements of the project.

Lot 185 and 167

Our team is also currently providing mechanical, electrical, technology and acoustics services for two new towers. A new hotel tower located on lot 185 will reach 1,000 feet tall, with 56 stories located over a six-story retail podium. A new adjacent office tower located on Lot 167 will be 77 stories comprising office and retail space, with a retail podium connecting to that of Lot 185.