Mukaab in Riyadh: Saudi Arabia’s Vision 2030 cube project hits pause

A gigantic cube in the middle of Riyadh was meant to become Saudi Arabia’s next landmark - now that dream is losing momentum.

The futuristic Mukaab, an enormous cube of concrete, glass and high-tech systems, was intended to be the most eye-catching emblem of Saudi Arabia’s transformation. Insiders are now signalling a sharp change of pace: work on the record-breaking structure has been put on ice, and the vision is being pushed much further into the future.

What sits behind the Mukaab megaproject

Mukaab is not a conventional skyscraper; it is conceived more as a city built upwards. The plan is for a cube-shaped structure with an edge length of roughly 400 metres, positioned in the centre of the capital, Riyadh. Inside, an entire district is meant to fit - including homes, hotels, retail areas, entertainment venues, offices and landscaped green spaces.

The cube is designed as the focal point of “New Murabba”, a newly planned, futuristic central area. This new district, budgeted at around $50 billion, is intended to give Riyadh a second, hyper-modern heart - with a stadium, museum, university, cinemas and vast shopping zones.

Mukaab is so large that, in theory, around twenty Empire State Building towers could fit within its volume.

Over the long term, the cube could, under the plans published so far, accommodate up to 400,000 people. In global architectural terms, that would make it a record: no structure with such an immense cubic volume has yet been built.

Sudden stop: why Saudi Arabia is tapping the brakes

According to sources familiar with the scheme, the Saudi leadership has paused active construction for the time being. Publicly, the language used is “suspension” rather than cancellation. Preparatory work in Riyadh had already begun, and the huge foundation pit has reportedly been excavated.

Multiple accounts point to the same central reason: money. In recent years Saudi Arabia has channelled hundreds of billions of dollars into headline-grabbing visions - from new tourism regions to entirely masterplanned cities in the desert. It is now becoming clear that not every initiative can be delivered at the originally intended pace, all at once.

• Projects expected to generate returns more quickly are currently being prioritised,
• key components linked to Expo 2030,
• programmes tied to the 2034 FIFA World Cup,
• and major leisure and tourism destinations such as the complex near Qiddiya.

For Mukaab, this means the 2030 completion date is no longer seen as realistic. Based on the cited information, commissioning is now more likely to be targeted around 2040 - a major setback for a project that was meant to function as a showcase for “Vision 2030”.

Vision 2030: a kingdom searching for a post-oil future

The cube is only one part of a far broader agenda. With the “Vision 2030” strategy, Crown Prince Mohammed bin Salman is driving a sweeping overhaul of the country. The aim is to make the economy far less dependent on oil, create more jobs, and reshape Saudi Arabia into a global hub for tourism, finance, sport and entertainment.

Even now, a substantial share of Saudi economic output is tied to oil - about 40% of GDP is attributed to the “black gold”. Falling or volatile oil prices tighten the government’s financial room for manoeuvre. That pressure forces sharper prioritisation and prompts a fresh assessment of projects that carry enormous prestige but have uncertain direct economic returns.

Mukaab was intended to operate as an extreme statement: a high-tech cube as a tangible symbol of renewal, progress and modernisation. It is precisely this symbolic role that makes the pause all the more noteworthy.

Not only Mukaab: other mega-ideas are being scaled back as well

The cube is not the only initiative running into constraints. “The Line” - planned as a perfectly straight urban strip stretching hundreds of kilometres across the desert - is, according to available information, being significantly reduced in scale and progressed more slowly.

The concept was for a kind of inhabitable high-rise wall through the desert, more than 170 kilometres long, extremely dense and heavily digitalised. To many observers, the visuals felt closer to a bleak cyberpunk setting than to traditional urban planning. At present, much suggests that only a short segment would be built first - if it is built at all.

Project	Original idea	Current status
Mukaab	400-metre cube, vertical city, centrepiece of New Murabba	Construction suspended, completion broadly pushed towards 2040
New Murabba	New, futuristic inner-city district in Riyadh	Some sections ongoing; overall scope depends on Mukaab and budgets
The Line	170-kilometre linear city across the desert	Project heavily reduced; future unclear

Controversy over the shape: echoes of a sacred symbol

Mukaab draws debate not only because of its scale, but also because of how it looks. Within the country, criticism emerged early on because the monumental cube evokes the Kaaba - Islam’s central shrine at the Grand Mosque in Mecca.

Critics see the gigantic cube form as an uncomfortable resemblance to one of Islam’s holiest sites.

While the designers emphasise that Mukaab is an independent concept with a modern design approach, some believers still find the idea of building a leisure- and consumption-focused mega-cube unsettling if the association with the Kaaba is taken into account. In a country where religion and politics are closely intertwined, this symbolic layer carries significant weight.

Risks and opportunities of such a radical urban overhaul

From an urban-development perspective, Saudi Arabia’s projects are operating at the edge of what is feasible. Structures of this size, delivered through top-down planning, come with clear risks:

• heavy reliance on stable long-term revenues,
• high exposure to shifts in political direction,
• uncertainty over whether residents and tourists can be attracted sustainably,
• potential misallocation of resources if projects fail to perform as expected.

At the same time, the radical approach also creates opportunities. Saudi Arabia can trial new forms of urban living and leisure relatively quickly, without needing to preserve older building stock. If it succeeds in delivering truly functional, globally recognised flagship projects, the country could position itself as a hotspot for architecture, events, sport and entertainment - similar to what Dubai has demonstrated, only pushed even further towards the extreme.

What the Mukaab pause could mean for the future

The current construction pause reads like a reality check on the kingdom’s ambitions. The visions remain, but the numbers have to work: every billion spent on a symbolic building is a billion unavailable elsewhere. For the Saudi leadership, the question becomes how much spectacular architecture is needed to reach the underlying goal - a diverse, modern economy.

Particularly telling will be how far Mukaab is moved away from the original concept. Plausible routes include smaller dimensions, a modular build-out over decades, or a stronger focus on uses with more predictable economics such as hotels, conference centres and office space. Stricter environmental requirements could also come into play, given that mega-buildings in the desert consume vast amounts of energy for cooling and technical systems.

For international observers, the pause sends a notable message: even a state with immense financial power faces limits when it comes to gigantic prestige projects. For now, Mukaab remains a symbol - not of a completed future, but of the difficult path towards it. What the cube ultimately becomes will be decided less by glossy renderings than by the next rounds of budgeting in Riyadh.

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