Jeddah Tower Status: World’s Tallest Building, Construction Pauses, and Engineering Challenges

Before NEOM, before The Line, before the parade of giga-projects that defines Vision 2030, there was Jeddah Tower. Conceived in the late 2000s and originally known as Kingdom Tower, this project to build the world’s first building exceeding 1,000 meters has become one of the longest-running sagas in the history of supertall construction. Repeatedly announced, repeatedly paused, mired in legal disputes and financial restructuring, Jeddah Tower stands as both a testament to human engineering ambition and a cautionary tale about the gap between announcement and achievement. As of early 2026, the partially completed structure rises from the coastal plain north of Jeddah—a concrete skeleton that has become one of the world’s most famous unfinished buildings. This is the full story of where things stand and what might come next.

Origins: The Race to 1,000 Meters

The story of Jeddah Tower begins in the global competition for supertall building supremacy that intensified in the 2000s. The completion of Taipei 101 in 2004 at 508 meters, followed by the Burj Khalifa in Dubai at 828 meters in 2010, demonstrated that buildings could be engineered to heights previously considered impossible. The psychological barrier of 1,000 meters—one full kilometer—became the next frontier.

Prince Al-Waleed bin Talal, through his Kingdom Holding Company, announced plans for what was then called Kingdom Tower in 2011. The building would be the centerpiece of Jeddah Economic City, a mixed-use development on the Red Sea coast north of Jeddah. The design was awarded to Adrian Smith + Gordon Gill Architecture, the firm whose principal, Adrian Smith, had designed the Burj Khalifa while at Skidmore, Owings & Merrill. The engineering was handled by Thornton Tomasetti, specialists in supertall building structures.

The design that emerged is a slender, tapering tower with a triangular floor plan that rises from a broad base to a narrow peak, featuring an observation deck and a dramatic notch near the top that serves both aesthetic and structural purposes. The building’s form is not merely sculptural—it is shaped by the aerodynamic requirements of a structure that must resist wind forces at a kilometer in height, where wind speeds and turbulence patterns differ significantly from those at conventional building heights.

The original specifications called for a total height of at least 1,008 meters—comfortably clearing the Burj Khalifa’s 828 meters to claim the title of world’s tallest building. The building would contain luxury hotel rooms, premium residences, office space, an observation deck at approximately 637 meters (which would itself be the world’s highest), and the signature sky terrace near the top.

Construction History: Starts and Stops

Construction on Jeddah Tower began with the foundation work in 2013, and the project’s early progress generated genuine excitement in the engineering and architectural communities. The foundation system—a massive piled raft of unprecedented depth and strength—was completed successfully, demonstrating that the geological conditions of the site could support the enormous loads.

Structural construction progressed steadily through the mid-2010s, with the concrete core and perimeter columns rising floor by floor. By 2017, the structure had reached approximately 252 meters—roughly the height of a conventional 60-story building and approximately one-quarter of the planned total height. The progress, while slower than the Burj Khalifa’s construction pace, was consistent with the complexity of the engineering.

Then construction stopped. The initial pause in 2017 coincided with the anti-corruption crackdown of November 2017, during which Prince Al-Waleed bin Talal was among the prominent Saudi businessmen detained at the Ritz-Carlton Riyadh. The detention of the project’s primary sponsor created immediate uncertainty about the project’s future, and construction activity ceased as financial arrangements were disrupted.

The subsequent years brought repeated announcements of construction resumption followed by continued inactivity. The Jeddah Economic Company, the development entity responsible for the tower and the surrounding economic city, underwent management changes and financial restructuring. Contractor disputes, particularly with the primary construction contractor, the Saudi Binladin Group, complicated the picture further. The Binladin Group itself was undergoing its own corporate restructuring during this period, adding an additional layer of complexity to the contractual relationships.

Legal disputes between the Jeddah Economic Company, contractors, and various stakeholders generated litigation that further delayed progress. Claims and counterclaims regarding payments, scope changes, and contractual obligations created a legal tangle that proved difficult to resolve while construction was paused.

The Structure Today: A Concrete Monument to Ambition

The partially completed Jeddah Tower structure stands at approximately 252 meters above ground level, with 63 floors of structural concrete in place. The core—the central concrete spine that provides the primary structural support and houses elevators, stairs, and services—is complete to this height, as are significant portions of the perimeter structure.

The quality of the work completed has been assessed by independent engineers as meeting the demanding specifications of the design. The concrete work, the reinforcing steel installation, and the precision of the construction are all consistent with the standards required for a supertall building. There are no known structural issues with the completed work that would preclude continuation of construction.

However, the prolonged exposure of the unfinished structure to the elements raises concerns about condition. Reinforcing steel at unfinished levels, exposed to Jeddah’s humid, salt-laden coastal air for years, may have experienced corrosion that requires remediation before construction can resume. Concrete surfaces exposed to temperature cycling and weather may require assessment and potential repair. The mechanical and electrical systems that were partially installed before the stoppage require evaluation for condition and relevance to the current design.

The foundations, being protected below ground level, are expected to be in good condition. The piling and raft foundation system was designed for the full loads of the complete building and has been carrying only the partial loads of the incomplete structure, so structural capacity is not a concern.

Engineering Challenges at 1,000 Meters

The engineering challenges that Jeddah Tower must overcome to reach its target height are among the most demanding in the history of construction. While the engineering solutions have been developed in the design, their implementation at the actual construction site remains to be completed.

Wind engineering at 1,000 meters involves forces and phenomena that are qualitatively different from those at conventional building heights. At the kilometer mark, the building is fully exposed to the atmospheric boundary layer, where wind speeds are significantly higher and more variable than near ground level. The building’s response to wind—including both steady-state deflection and dynamic oscillation—must be managed through a combination of structural stiffness, aerodynamic form, and active or passive damping systems.

The aerodynamic design of Jeddah Tower has been extensively tested in wind tunnel studies, with the triangular cross-section and tapering form designed to minimize wind forces and prevent the formation of organized vortex shedding that can cause destructive oscillation. The design incorporates a series of setbacks and openings that disrupt wind flow and reduce the magnitude of the forces acting on the structure.

Concrete pumping to a height of 1,000 meters pushes the boundaries of what is technically achievable. The Burj Khalifa set records for concrete pumping at 600 meters, and Jeddah Tower would need to exceed this by a significant margin. The development of concrete mixes that remain workable during the extended pumping time required to reach extreme heights, and the pumping equipment capable of generating the pressures needed, represent technical challenges that have been addressed in the design but not yet tested in actual construction at the full height.

The elevator systems required for a building of this height present their own challenges. At 1,000 meters, the weight of the elevator cables in a conventional traction elevator becomes a limiting factor. Carbon fiber or other lightweight rope systems, sky lobbies with elevator transfers, and other innovations are required to provide efficient vertical transportation throughout the building’s full height.

The construction logistics of working at a kilometer above the ground involve challenges of material delivery, worker safety, and productivity that intensify with height. The time required for workers and materials to reach the upper floors increases as the building rises, reducing productive work time and increasing costs.

Financial Status and Ownership

The financial situation of Jeddah Tower is complex, involving multiple stakeholders with sometimes competing interests. The Jeddah Economic Company, which owns and is responsible for the tower and the surrounding development, has undergone changes in ownership structure and capitalization since the project’s initial conception.

Prince Al-Waleed bin Talal’s Kingdom Holding Company remains a significant stakeholder, but the financial arrangements have been restructured in the years since the 2017 pause. The involvement of other Saudi investors, government entities, and potentially the Public Investment Fund in the project’s recapitalization has been the subject of speculation but not definitive public disclosure.

The estimated cost to complete Jeddah Tower from its current state to full operational readiness is substantial. Construction costs, remobilization expenses, potential remediation of the existing structure, and the general escalation of construction costs since the original budget was established all contribute to a completion cost that likely exceeds the original total project budget.

Financing for the completion of the tower requires a credible financial plan that accounts for construction costs, interest during construction, and the revenue potential of the completed building. The commercial case—whether the hotel rooms, residences, and office space in a completed Jeddah Tower would generate sufficient revenue to justify the investment—depends on assumptions about market conditions, rental rates, and occupancy that are inherently uncertain.

The Broader Context: Jeddah Economic City

Jeddah Tower was conceived as the centerpiece of Jeddah Economic City, a broader mixed-use development that was planned to include residential, commercial, hospitality, and entertainment components surrounding the tower. The success of the tower is therefore linked to the success of the broader development.

Jeddah Economic City’s progress has been mixed. Some components of the broader development have advanced, including road infrastructure, utilities, and initial building development. However, the stalling of the tower—which was intended to be the catalyst and anchor for the entire development—has affected investor confidence and the pace of development in the surrounding area.

The relationship between the tower and the broader development creates a chicken-and-egg dynamic. The tower needs the surrounding development to provide the urban context, services, and demand base that make it viable. The surrounding development needs the tower to provide the landmark identity, prestige, and anchor tenancy that drive demand for the area. The simultaneous stalling of both creates a challenge that requires a comprehensive restart rather than incremental progress.

The Jeddah context has also evolved since the tower was conceived. The city’s development dynamics, infrastructure investments, and competitive position within Saudi Arabia’s urban hierarchy have all changed. The rise of Riyadh as the primary focus of Saudi investment and headquarters relocation, combined with the proliferation of major developments in the capital, has shifted some of the commercial momentum that Jeddah Tower was designed to capture.

Prospects for Resumption

The question of whether and when construction on Jeddah Tower will resume is one of the most frequently asked questions in the global construction industry. Several factors influence the answer.

On the positive side, the structural engineering of the building is sound. The design has been peer-reviewed and validated by some of the world’s leading engineering firms. The foundations are in place and capable of supporting the complete structure. The portion of the structure that has been built appears to be in acceptable condition, pending detailed assessment. And the symbolic value of completing the world’s tallest building remains compelling for Saudi Arabia, particularly in the context of Vision 2030’s emphasis on ambitious achievements.

On the challenging side, the financial requirements are substantial. The legal and contractual complications need to be fully resolved. The market conditions for ultra-premium hotel, residential, and office space in Jeddah need to support the commercial case. And the Saudi development portfolio now includes competing priorities that may command attention and resources ahead of Jeddah Tower.

The most likely scenario appears to be a restructured project with modified scope, potentially incorporating revised specifications for certain components while maintaining the fundamental goal of the world’s tallest building. Whether the tower reaches the full 1,008-meter height or is completed at a somewhat reduced but still record-breaking height is one of the questions that restructuring may address.

The involvement of PIF or other government entities in the project’s recapitalization could provide the financial firepower needed to complete construction, but would also introduce new governance dynamics and potentially revised priorities. Government involvement could accelerate the project by providing capital certainty but might also redirect the project’s commercial strategy to align with broader national objectives.

Legacy and Lessons

Regardless of its ultimate completion, Jeddah Tower has already contributed to the advancement of supertall building engineering. The design solutions developed for wind engineering, structural systems, concrete technology, and elevator systems at the 1,000-meter scale represent valuable intellectual capital that will inform future supertall projects worldwide.

The project’s troubled history also provides lessons about the risks of mega-project development. The reliance on a single sponsor whose personal circumstances could disrupt the project, the complexity of contractual arrangements involving multiple parties with different incentives, and the vulnerability of a long-duration construction project to changes in economic conditions and strategic priorities are all lessons that have been absorbed by the global development community.

For Saudi Arabia, Jeddah Tower represents unfinished business—a highly visible reminder that not all ambitious projects reach completion. In a kingdom that now announces new giga-projects with regularity, Jeddah Tower stands as an implicit question: will these new projects share the tower’s fate?

Conclusion

Jeddah Tower exists in a liminal state—neither complete nor abandoned, neither progressing nor definitively dead. Its 252-meter concrete skeleton, rising from the coastal plain north of Jeddah, is visible to arriving airline passengers and passing drivers, a daily reminder of both the ambition that conceived it and the complications that have prevented its completion.

The engineering challenge of building a 1,000-meter building has been substantially solved in the design. The structural, aerodynamic, material, and construction solutions exist. What remains unsolved is the financial, legal, and organizational challenge of marshaling the resources, resolving the disputes, and maintaining the commitment needed to translate the design into a completed building.

If Jeddah Tower is completed, it will be one of the most remarkable engineering achievements in human history—a structure that redefines the vertical limits of the built environment. If it is not completed, it will serve as one of the most prominent monuments to the gap between ambition and execution, a reinforcement of the sobering reality that not all bold visions survive contact with the complex realities of the world.

The next chapter of Jeddah Tower’s story has yet to be written. But whatever that chapter contains, the project has already secured its place in the history of architecture and engineering—as either the triumph that changed the skyline forever or the cautionary tale that reminded the world that even the wealthiest kingdoms cannot simply will their ambitions into existence.