The Middle East is reimagining what construction looks like, with Saudi Arabia home to a new class of developments: “Giga-projects”. From NEOM to the Red Sea Development, Diriyah Gate to the King Abdullah Financial District, these are not traditional buildings or isolated sites, they are entire cities with infrastructure spanning thousands of square kilometres, often built from the ground up.
Project durations stretching into 2030 and beyond. This may sound impressive, but with innovations comes complexity, and with complexity comes one unavoidable question:
How do you manage costs at this scale, when everything, from scope to materials to timelines, are evolving in real time?
At TPM Williams (TPMW), we have been at the forefront of several large scale projects, including NEOM and the Red Sea which has shaped the way we design and implement systems that complement the project’s scale and complexity.
Cost consultants in this environment play a far more dynamic role with the need to be strategic partners embedded from the start, driving clarity, risk mitigation, and financial control across the full project lifecycle.
Integrating Technology at the Core of Cost Management
When a project is smart, digital, and data led the cost consultancy must evolve as well. Traditional methods still serve as a foundation for knowledge, but tools like Building Information Modeling (BIM) are now indispensable. BIM can link design elements to a cost item, ensuring that real time design changes are reflected in budget forecasts.
• Clash detection becomes cost prediction.
• Design iterations become financial simulations.
Compliment this with AI, where historical project data and market trends can be fed in to predict potential cost overruns, especially useful in multi-phase developments where scope creeps are common. This allows us to proactively flag risk zones and model the financial impacts of design choices before they materialize on site.
How New Construction Approaches Impact Budgeting
Giga projects are adopting cutting edge construction methods, and these innovations are rewriting the rules of cost planning. One of the most significant shifts we are seeing is Modular and off-site construction.
In contrast to traditional construction, which assumes sequential site builds, modular construction involves fabricating major components like walls, bathrooms, facades, and even rooms that are manufactured in a factory. These are then assembled on site like Lego blocks with speed and precision.
This shift affects everything from procurement to payment schedules.
1. Upfront Cost vs. Lifecycle Value
Although modular methods may seem more expensive at the outset due to factory setup, transport logistics, and early material procurement, they often reduce overall project cost by accelerating construction timelines, minimizing errors, and reducing material wastage
2. Speed driven budgeting
Speed is a critical factor when it comes to such projects. With modular systems, site works and off-site fabrication can parallelly progress which accelerates the delivery but also shifts the financial planning. The project’s cash flow would be front loaded, and the procurement timelines would be recalibrated with fewer late-stage variations due to the precision of factory production.
3. Change in Procurement Models
Rather than sourcing raw materials, developers have the choice to procure fully integrated systems like electrical pods, prebuilt kitchens, or entire mechanical rooms. This places a major focus on the factory’s quality control and the vendor’s stability.
Managing Risk Across Horizons
The one thing that is guaranteed in a giga project is change. With timelines stretching 10 to 20 years, cost planning must account for a range of uncertainties including Inflation, currency fluctuations, supply chain disruptions and geopolitical pressures.
In Summary
These projects go far beyond conventional construction. They represent long term infrastructure and urban planning efforts with economic and social impacts. For cost consultants, this means the stakes are higher, the scope is broader, and the responsibility is far greater.