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Saudi’s $50B downtown megaproject seeks partners

Updated Oct 27, 2025, 7:33am EDT
GulfMiddle East
Rendering of The Mukaab building with spiral tower inside.
Courtesy of New Murabba
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New Murabba, the $50 billion development backed by Saudi Arabia’s sovereign wealth fund, has broken ground and is seeking partners to build what it calls the “world’s largest modern downtown,” CEO Michael Dyke said at the Fortune Global Forum in Riyadh.

Launched in 2023, the 14-square-kilometer northwestern district of the capital will rival the combined size of the downtowns of Manhattan, Paris, and London. At its center will be The Mukaab: a cube-shaped structure “unlike anything on the planet,” Dyke said. Inside, a spiraling tower sits beneath a vast dome that will house hotels, retail, and an immersive “digital world” 23 times larger than Las Vegas’ MSG Sphere.

The goal, Dyke said, is to turn the Riyadh district into a futuristic model of urban living, with homes, offices, services, and parks all within a short walk, known as the 15-minute city.

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The project’s progress — Dyke said 70% of zoning has been completed and infrastructure work is underway — contrasts with budget tightening of other Public Investment Fund-backed developments, most notably NEOM. Murabba aims to set a “new global standard” for integrating technology, sustainability, and culture, he said.

The scale of the project is fantastical, but still within the confines of existing construction technology and built in the region’s biggest city that has an urgent need for more housing and offices. “We’re open for partnerships,” Dyke said, calling on global tech and real estate investors to join as Saudi looks to diversify its economy beyond oil and draw global talent.

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