Saudi Arabia is in the middle of the most concentrated infrastructure investment program any single country has undertaken. Under Vision 2030, the Kingdom has launched more than a dozen giga projects — developments with budgets measured in tens or hundreds of billions of dollars — aimed at diversifying the Saudi economy away from oil dependence and positioning the country as a global destination for tourism, technology, entertainment, and finance.

This guide catalogs every major Saudi giga project as of early 2026, with current costs, timelines, developers, and construction status.

Total Investment Overview

Before diving into individual projects, here is the aggregate picture:

These figures make Saudi Arabia’s construction pipeline the largest in the world by a significant margin, exceeding the combined infrastructure spending of most G7 nations.

1. NEOM

NEOM is the umbrella megaproject encompassing an entire economic zone roughly the size of Belgium. It includes its own legal and regulatory framework, designed to operate semi-independently from the rest of Saudi Arabia. NEOM contains several distinct sub-projects, each a giga project in its own right.

The Line

The centerpiece of NEOM. The Line is a 170-kilometer linear city consisting of two parallel mirrored structures, each 500 meters tall and 200 meters apart. Designed for 9 million residents with zero cars, it relies on high-speed rail and vertical transit. As of 2026, construction is focused on an initial 2.4-kilometer segment with 50,000+ workers on site. The cost for The Line alone is estimated at $200 billion or more.

Status: Foundation work on Phase 1 underway. Internal timeline revisions have scaled back the 2030 population target from 1.5 million to approximately 300,000.

Trojena

NEOM’s mountain tourism destination, located at elevations between 1,500 and 2,600 meters in the Sarawat Mountains. Trojena is designed as a year-round outdoor sports and adventure destination, and was selected to host the 2029 Asian Winter Games — marking the first time the event will be held in the Middle East.

Trojena plans to use artificial snow generation and an outdoor ski slope integrated into the natural mountain terrain. Year-round activities include hiking, mountain biking, and water sports on a man-made freshwater lake.

Oxagon

NEOM’s industrial and innovation hub, structured as an octagonal floating platform on the Red Sea — the world’s largest floating structure if completed. Oxagon is designed to house advanced manufacturing, a port, and a logistics zone powered by 100% renewable energy.

Oxagon aims to become a hub for green hydrogen production, leveraging Saudi Arabia’s solar resources and NEOM’s proximity to international shipping lanes.

Sindalah

NEOM’s luxury island resort in the Red Sea, and the first NEOM sub-project to approach completion. Sindalah is a small-scale, high-end hospitality destination designed to attract ultra-luxury tourism.

Sindalah serves as a proof of concept for NEOM’s ability to deliver finished product, even as the larger sub-projects operate on decade-long timelines.

2. Red Sea Global

Red Sea Global encompasses two major resort destinations: The Red Sea (luxury eco-tourism) and Amaala (ultra-luxury wellness and arts). Phase 1 of The Red Sea destination opened in 2023 with multiple hotel properties operational, making it one of the first Vision 2030 giga projects to deliver a functioning product.

The development includes 50 resort hotels across 22 islands and 6 inland sites at full build-out, targeting 1 million visitors annually. Red Sea Global has positioned itself as a regenerative tourism project, pledging a 30% net conservation benefit to the local ecosystem.

Status: Phase 1 operational with several luxury hotel brands open. Phase 2 construction continues across additional islands and inland sites.

3. Qiddiya

Qiddiya is Saudi Arabia’s entertainment, sports, and cultural mega-destination — essentially, the Kingdom’s answer to the question of where Saudis and tourists go for leisure. The development includes a Six Flags theme park (the first in the Middle East), motorsport facilities including a Formula 1-grade circuit, a water park, performing arts venues, an 18-hole golf course, and a speed park featuring the world’s fastest roller coaster.

Qiddiya also includes residential neighborhoods, hospitality zones, and a dedicated arts district. It is positioned as the cultural and entertainment capital of Saudi Arabia.

Status: Major earthworks complete. Theme park and motorsport facility construction advancing. Several anchor attractions are in structural completion phase.

4. Diriyah Gate

Diriyah Gate transforms the historic birthplace of the Saudi state into a heritage-driven tourism, hospitality, and cultural destination. The development surrounds the UNESCO World Heritage Site of At-Turaif and is built in traditional Najdi architectural style using local materials.

The project includes 38 hotels, 300+ retail outlets, 100+ dining venues, museums, a performing arts theater, and residential neighborhoods. Bujairi Terrace — the dining and retail promenade overlooking At-Turaif — opened in 2022 and has become one of Riyadh’s most popular destinations.

Status: Bujairi Terrace operational. Hotel and residential zone construction progressing. Museum and cultural facility development underway.

5. King Salman Park

King Salman Park will be one of the world’s largest urban parks — four times larger than Central Park in New York. Built on the site of Riyadh’s former airport, it includes a Royal Arts Complex, an opera house, museums, cinemas, sports facilities, water features, residential units, hotels, and over 7.5 million square meters of green space.

The park is intended to address Riyadh’s chronic shortage of public green space and serve as a cultural anchor for the capital.

Status: Core landscaping and infrastructure work progressing. Residential and hospitality construction underway.

6. Jeddah Tower (Kingdom Tower)

If completed, Jeddah Tower will be the world’s first building to exceed 1 kilometer in height, surpassing the Burj Khalifa (828 meters). The project stalled in 2017–2018 amid the arrest of its primary backer, Prince Alwaleed bin Talal, during the Ritz-Carlton corruption crackdown. Construction resumed in 2023, but the tower remains at approximately one-third of its planned height.

The tower anchors the larger Jeddah Economic City development, a mixed-use district planned around the supertall structure.

Status: Construction has resumed. Structural work progressing but completion timeline remains uncertain, with optimistic estimates placing it in the early 2030s.

7. ROSHN

ROSHN is Saudi Arabia’s national community developer, building entire integrated neighborhoods with homes, schools, parks, mosques, and retail. Unlike the headline-grabbing tourism and entertainment projects, ROSHN addresses a fundamental domestic need: housing for Saudi citizens. The company has launched communities in Riyadh (SEDRA), Jeddah (ALAROUS), and the Eastern Province (ALFULWA).

Status: SEDRA Phase 1 delivered and occupied. Multiple additional phases under construction across three regions. One of the most operationally advanced giga projects.

8. King Abdullah Financial District (KAFD)

KAFD is Riyadh’s purpose-built financial hub, designed to rival Dubai’s DIFC and Doha’s QFC. The district includes 59 towers, a conference center, luxury hotels, residential towers, and a monorail system. After years of delays (the project was first announced in 2006), KAFD reached operational status with major tenants including the Saudi Central Bank (SAMA), PIF, and multiple international banks.

Status: Operational and occupied. Remaining retail and hospitality components being finalized.

9. New Murabba (The Mukaab)

New Murabba is anchored by The Mukaab — a massive cubic structure measuring 400 meters on each side (400m tall, 400m wide, 400m deep). The Mukaab will be large enough to house 20 Empire State Buildings by volume and will contain a spiraling immersive experience, hospitality venues, retail, and cultural spaces within its interior.

The broader New Murabba district includes over 100,000 residential units, 9,000+ hotel rooms, 1.4 million square meters of retail space, and 620,000 square meters of office space. The development is positioned as a new downtown for Riyadh.

Status: Master plan published. Site preparation and early construction underway. The Mukaab’s structural engineering is in detailed design phase.

10. Sports Boulevard

Sports Boulevard is a 135-kilometer linear park and active transportation corridor running through Riyadh, connecting the city’s major districts via cycling paths, jogging trails, equestrian tracks, and sports facilities. The boulevard passes through Wadi Hanifah and is designed to transform Riyadh from a car-centric city into one with a continuous active mobility spine.

Status: Multiple segments under construction. Landscaping and trail infrastructure progressing.

Total Investment Summary Table

Frequently Asked Questions

How many giga projects does Saudi Arabia have?

Saudi Arabia has more than 12 major giga projects under Vision 2030, with NEOM alone containing at least 4 distinct sub-projects (The Line, Trojena, Oxagon, Sindalah). The total number continues to grow as the PIF launches new development entities.

Which Saudi giga project is closest to completion?

As of 2026, Red Sea Global’s Phase 1 is operational with hotels open to guests, KAFD is occupied by major financial tenants, and ROSHN has delivered thousands of residential units. Sindalah, NEOM’s luxury island, is also approaching completion. These represent the most advanced projects in terms of delivering a functioning product.

How is Saudi Arabia funding all these giga projects?

The primary funding source is the Public Investment Fund (PIF), Saudi Arabia’s sovereign wealth fund with approximately $930 billion in assets under management. PIF both directly funds projects and establishes subsidiary companies to manage each development. Additional funding comes from international debt markets, private investment partnerships, and, for some projects, direct government budget allocation.

Can Saudi Arabia afford to complete all its giga projects?

This is the central question. At $1.1–1.3 trillion in aggregate estimated costs, the giga projects represent a commitment that exceeds PIF’s entire current asset base. Completion depends on sustained oil revenue, successful international fundraising, phased construction that spreads costs over decades, and — critically — the willingness to scale back or delay projects if funding tightens. Reports have already indicated timeline and scope revisions for The Line.

What is the biggest Saudi giga project?

By cost and scale, NEOM is the largest at $500 billion+, encompassing a 26,500 km² zone with multiple sub-projects. By single-asset investment, The Line at $200 billion+ is the most expensive individual structure ever attempted. By residential volume, ROSHN’s 300,000+ planned housing units make it the largest by unit count.

Key Takeaways

• Saudi Arabia has over 12 giga projects under Vision 2030 with a combined estimated investment of $1.1–1.3 trillion, the largest construction pipeline of any single country.
• NEOM ($500B+) is the umbrella megaproject, with The Line ($200B+), Trojena, Oxagon, and Sindalah as its primary sub-projects.
• Several projects have reached operational status: Red Sea Global Phase 1 is open, KAFD is occupied, and ROSHN has delivered thousands of homes — demonstrating that execution is happening, even if the headline projects grab more attention.
• Funding flows primarily through the Public Investment Fund (PIF), but the aggregate cost exceeds PIF’s current assets, making phased delivery and external financing essential.
• Timeline revisions are underway across multiple projects, most notably The Line, reflecting the gap between initial ambition and construction reality.
• The less publicized projects — ROSHN (housing), KAFD (finance), Sports Boulevard (urban mobility) — may ultimately have more direct impact on Saudi daily life than the tourism megaprojects.
• Qiddiya, Diriyah Gate, and King Salman Park are positioned to transform Riyadh into a cultural and entertainment destination by the late 2020s.

Explore individual project deep-dives: What Is NEOM?, The Line Saudi Arabia, Vision 2030 Explained, and the Saudi Arabia Economy Guide.