Major Setback for Saudi Arabia's £36bn 'World's Largest Building' Project
A significant development has emerged regarding one of the most ambitious architectural projects ever conceived – Saudi Arabia's Mukaab cube in Riyadh, which was tipped to become the world's largest building. This colossal structure, so immense it could reportedly accommodate 20 Empire State Buildings within its walls, now faces an uncertain future as the kingdom's sovereign wealth fund reassesses its property ventures.
The Vision of a Revolutionary Skyscraper
The Mukaab project was envisioned as a futuristic new form of skyscraper, a vast cube intended to loom over the New Murabba district in the Saudi Arabian capital. The ambitious design called for a structure measuring 400 metres in both height and width, boasting a staggering two million square metres of floor space. This revolutionary take on urban architecture was planned as the centrepiece of a lavish new district designed to accommodate 400,000 residents.
The sheer scale of the Mukaab cube was such that it could reportedly contain the equivalent of 20 Empire State Buildings – New York's iconic 381m tower. In terms of construction, the project was said to require massive excavations for the structure's foundations and was due to contain a 300-metre tower alongside commercial and hotel complexes.
Strategic Reassessment and Funding Concerns
According to reports from Reuters, Saudi Arabia's $925bn (£674bn) sovereign wealth fund is believed to be scaling back its property ventures and seeking to deploy its resources more strategically. This strategic shift could significantly affect the country's Saudi Vision 2030 programme, of which the Mukaab project was a prominent component.
Faisal al-Ibrahim, the kingdom's economy minister, stated: "We are completely transparent. We will not hesitate to say that we have had to modify, postpone or redefine this or that project." However, he notably did not reveal which developments would remain and which would be scrapped.
Broader Context of Saudi Megaprojects
This wouldn't mark the first ambitious urban development contemplated by the kingdom to face challenges. The Line – a groundbreaking linear city that Crown Prince Mohammed bin Salman promised would feature "no roads and zero carbon emissions" – represents another incredibly ambitious development scheme that remains unfinished. These megaprojects appear to be stuck in limbo as officials reassess both funding and feasibility.
The Saudi authorities are understood to be redirecting focus towards sectors including:
- Cryptocurrencies
- Mining operations
- Artificial intelligence (AI)
This represents a shift from their previous concentration on the luxury tourism sector that underpinned many of these architectural ambitions.
Project Delays and Industry Perspectives
For the time being, the ultimate completion date for New Murabba, the £36bn district destined to accommodate the Mukaab, has been pushed back to 2040 according to reports. Speaking at a conference in Riyadh in December last year, Michael Dyke, the CEO of real estate firm New Murabba, acknowledged the challenges: "When you enter Mukaab, you enter another world. Trying to create something that doesn't yet exist is a real challenge."
Saudi Arabia has reportedly conceded that, although not all real estate projects have been halted, they will all have to undergo comprehensive review. The Mukaab project now joins a growing list of architectural ambitions whose futures hang in the balance as the kingdom recalibrates its economic strategy and investment priorities.



