July 2016 construction shots of Jeddah Tower in Jeddah, Saudi Arabia. Courtesy Jeddah Economic Company.



We are providing structural design services for Jeddah Tower, which will become the world’s tallest building at more than 1,000 meters, and will be the first man-made structure to reach 1 kilometer in height. It forms a mixed-use centerpiece of Kingdom City, a 23-million-square-meter urban development.

A High Performance Structural System

Jeddah Tower’s structural system is based on stringent performance criteria for supertall structures, utilizing both international performance standards and regional building codes. Key challenges of the project include establishing wind loads appropriate for the location and building height, producing a building form that minimizes wind loading while optimizing the structural system, design of the slender spire elements, and design of a foundation system that supports the heavy loads and mitigates differential settlement.

A Mixed-Use Giant

Jeddah Tower, at 530,000 square meters, will house an opulent hotel, luxury condominiums, serviced apartments, office space and an observation deck. A high-performance exterior wall system will minimize energy consumption by reducing thermal loads. Each of the tower’s three sides will feature a series of notches that create pockets of shadow shielding areas of the building from the sun and providing outdoor terraces with stunning views of Jeddah and the Red Sea.

Construction Progress Update, 7/01/2016
• Walls at 170m in height
• Central Core Walls – Level 42
• Central Core Slabs – Level 34
• Wing Walls – Level 30
• Wing Slabs – Level 23

Jeddah Tower, Kingdom Tower
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Specialized Expertise

Tall & Supertall

For decades, our engineers have been pioneers in systems for tall and supertall buildings. From the development of the stressed-tube skin system in the 1980s to our unique design for Saudi Arabia’s Kingdom Tower – slated to be the world’s tallest building when it’s completed – we have explored new ways to improve upon tall building design and construction.

In recent years, towers have become taller and more visually exciting, creating new structural challenges. Our knowledge and experience, augmented by leading-edge analytical and design tools, are invaluable in providing designs that are safe, comfortable, economical, sustainable and constructable.

With a portfolio that includes three previous “world’s tallest” buildings and more than 100 other high-rises, Thornton Tomasetti has unparalleled experience in tall and supertall building design around the world.