Construction activity at the Expo 2030 Riyadh site is accelerating, with Expo Riyadh 2030 Company (ERC) moving to award its first major vertical contracts and advancing infrastructure works across a programme that will eventually require between 50,000 and 70,000 workers at peak.

Saudi Arabia’s first World Expo runs from 1 October 2030 to 31 March 2031. Riyadh was awarded the hosting rights in November 2023, winning the vote in the first round, and the event is projected to attract more than 40 million visits over its six months. Beyond the event itself, the project carries significant economic weight: ERC, wholly owned by the Public Investment Fund (PIF), expects the construction phase and legacy development to contribute around $64bn to Saudi GDP and generate approximately 171,000 direct and indirect jobs, with the live event contributing a further $5.6bn.

The masterplan covers 6 million square metres to the north of Riyadh, adjacent to the future King Salman International airport. After the event closes, ERC plans to transform the site into a global village combining retail, food and beverage and an international residential community – meaning every asset being built now is being designed with its post-Expo purpose in mind.

Infrastructure works under way

The earliest works on site – bulk earthworks including cut, fill and levelling – have been completed by local contractor Binyah, with millions of cubic metres of material moved to bring the site to design level.

The programme has now moved into utility infrastructure, which has been split into two packages. Nesma is constructing the primary utility networks – the main corridor running around the site carrying high-voltage power lines, water mains, sewerage and communications – while Al-Yamama is delivering the secondary networks that bring services into the central event area, with construction expected to commence this month.

Power has been a priority. ERC has worked with the Saudi electricity sector since 2025 to develop the site’s demand profile, and an agreement for permanent supply has been signed. Design and procurement of the main substation and primary power infrastructure are under way, with a contract award expected within weeks and full permanent power – at a capacity of 400MW – targeted approximately 18 months ahead of the event.

An initial 25MW supply to power site operations and support testing and commissioning is already installed and ready to be energised.

On water, ERC is finalising an agreement with the Royal Commission for Riyadh City (RCRC), the Saudi Water Authority and the National Water Company, with an announcement expected in Q3 and construction targeted to start in 2027.

Transport and connectivity

With more than 42 million visits anticipated over the six-month event, transport connectivity is treated as central to the project’s success. ERC is working with RCRC on a mobility plan that covers several modes. Two road enhancement projects around the airport and along King Salman Road are expected to be announced shortly, increasing capacity on the main arteries approaching the site.

A dedicated Expo metro station on Riyadh Metro Line 4 – which connects the airport to the city centre – will be built within the site boundary, forming the first stop from the airport towards Riyadh, and providing a direct link for international arrivals.

A park-and-ride programme using dedicated bus lanes will serve domestic visitors parking at locations across the city.

A hotel within the fenced Expo site is also nearing contract, with a design agreement close to signature. ERC says the intention is to give guests staying on site “the full experience from early morning when the gates open until late at night when the gates close” – an offer it expects will prove particularly popular with international visitors.

Pavilions and vertical assets

The Expo's masterplan is organised around five districts, each echoing one of the event’s sub-themes under its overarching theme of Foresight for Tomorrow: planet, people, technology, collaboration and culture. ERC is responsible for delivering a signature pavilion in each district, plus an iconic structure in the Global Collaboration district and a convention centre intended to serve both the event and Riyadh’s long-term conference market.

The Kingdom of Saudi Arabia (KSA) Pavilion, one of the centrepieces of the event, is also under ERC’s delivery responsibility. Design work is progressing across all these assets with engineering firms taking concepts through to schematic and detailed design.

For international participating countries, this edition of the Expo marks a significant departure from previous editions. Rather than grouping lower-income countries into shared halls, all participants will have their own national pavilion.

“In this edition, we are following the ‘one nation, one pavilion’ model, whereby each country has its own pavilion, and we have a dedicated budget to help up to 100 eligible countries deliver those pavilions,” says Murad Al-Sayed, ERC’s chief delivery officer.

Contracting strategy

The contracting approach for vertical assets is being calibrated to the complexity of each building. Less complex assets will be procured on a design-and-build basis.

For the most complex – the KSA Pavilion and the iconic structure – ERC is using a two-stage model, separating enabling works and substructure from the main contract. This allows construction to begin on site while the main package is finalised and brings contractors into the design process earlier.

“We are adopting different contracting strategies depending on the asset – its size, complexity and anticipated construction duration,” Al-Sayed says.

For the KSA Pavilion, enabling and substructure works are already in the market, with an award targeted in Q3, allowing construction to start before the main contract – for which nine tier-one contractors, local and international, have been invited to bid – is awarded towards the end of the year. Packages for the remaining signature pavilions are expected to follow later this year and into 2027.

On commercial terms, ERC is favouring lump-sum contracts where design maturity allows, with provisional sum or remeasurement provisions used where elements remain in development. A final public realm package, covering site-wide finishing works, remains under design and is expected to be tendered in 2026, sequenced deliberately to be installed last and once only ahead of the event.

Bidding appetite from the market has been strong. ERC says all tenders issued to date have attracted healthy numbers of qualified bids, reflecting a contracting market that has eased over the past 18 months as several gigaprojects elsewhere in the kingdom have reached completion or had their timelines revised.

Programme and supply chain

ERC is targeting completion of major construction by the end of 2029, leaving six to nine months for finishing, snagging and operational testing. To ease the build programme for international participants, ERC is making plots available up to 36 months before the event – around nine to 12 months longer than the industry norm – giving countries more schedule float to complete their pavilions.