The construction industry is no stranger to external pressures, but global geopolitical events can often have a significant impact on local development projects. The ongoing tensions involving Iran are a prime example of how events thousands of miles away can influence construction costs, procurement strategies and project viability here in the UK.

Whilst it is impossible to predict how the situation will develop, developers, landowners and contractors should be aware of the potential consequences and take steps to protect their projects against further cost inflation.

Why Does the Iran Conflict Matter?

The Middle East remains one of the world’s most important energy-producing regions. Any disruption to oil production, transportation routes or shipping infrastructure can have a direct impact on global energy prices.

Of particular concern is the Strait of Hormuz, a critical shipping route through which a significant proportion of the world’s oil and gas supplies pass. Any restrictions, delays or increased security concerns can quickly lead to higher fuel prices and increased transportation costs across global supply chains.

Although construction projects in the UK may seem far removed from these events, the reality is that modern construction relies heavily on international manufacturing, transportation and energy-intensive production processes.

The Impact on Construction Costs

Fuel is embedded in almost every aspect of the construction industry.

Higher oil and energy prices can increase the cost of:

  • Operating plant and machinery
  • Delivering materials to site
  • Manufacturing construction products
  • Haulage and logistics
  • Importing goods from overseas suppliers

Many commonly used construction materials require significant amounts of energy during manufacture. As energy prices increase, manufacturers often have little choice but to pass these costs through the supply chain.

Products most likely to be affected include:

  • Structural steel
  • Reinforcement steel
  • Cement and concrete products
  • Aluminium
  • Roofing materials
  • PVC products
  • Construction chemicals
  • Insulation products

For developers, even relatively small increases across multiple material categories can have a noticeable impact on overall project costs.

PIR Insulation – A Real-Time Example

One product causing particular concern within the UK construction industry is PIR insulation.

At Bayview Projects, we are currently seeing monthly price increases of approximately 10% on certain PIR insulation products, alongside restrictions on supply into builders’ merchants.

This combination of rising costs and reduced availability is creating challenges for developers and contractors attempting to maintain programme certainty and budget control. Where products are difficult to source, projects can face delays whilst alternative solutions are assessed and approved.

As a result, project teams are increasingly reviewing alternative insulation solutions where appropriate.

Products such as Hybris Actis are becoming part of the conversation; however, developers should be aware that achieving equivalent U-values may require increased build-up depths or adjustments to wall, floor or roof constructions. Any alternative specification should therefore be assessed on a project-specific basis to ensure compliance with Building Regulations, space requirements, cost objectives and construction practicality.

The key consideration is not simply the material cost but the overall impact on the building design, programme and long-term performance.

In our experience, rising material costs rarely present a simple one-for-one substitution. Alternative products can affect wall thicknesses, floor areas, structural details, labour requirements and programme durations. Developers who assess these impacts early are best placed to protect both project viability and build quality.

Supply Chain Uncertainty Remains a Risk

The construction sector has spent the last few years recovering from significant supply chain disruption caused by the pandemic, labour shortages and international shipping challenges.

Any escalation in Middle Eastern tensions has the potential to place additional strain on already fragile supply chains.

This can result in:

  • Longer lead times
  • Increased freight costs
  • Reduced product availability
  • Increased contractor risk pricing
  • Programme delays

Whilst not every project will be affected equally, schemes with tight procurement programmes or specialist material requirements may be particularly exposed.

What Should Developers Be Doing Now?

Rather than reacting when prices increase, developers should be taking proactive steps now.

We recommend:

Review Cost Plans Regularly

Budgets prepared six or twelve months ago may no longer reflect current market conditions. Regular cost reviews can identify emerging risks before they impact project viability.

Build Appropriate Contingencies

Inflation allowances and contingency sums should reflect current market uncertainty rather than relying solely on historic trends.

Procure Key Materials Early

Where possible, early procurement can help secure pricing and reduce the risk of programme delays.

Consider Alternative Specifications

Alternative materials may offer cost or procurement benefits, but these should always be assessed in the context of the overall building performance and design.

Engage With the Supply Chain

Maintaining strong relationships with suppliers and contractors can provide valuable insight into emerging market trends before they become widespread issues.

Looking Ahead

The UK construction industry has shown remarkable resilience through periods of uncertainty, and there is no indication that development activity will stop. However, developers who understand market risks and respond proactively are likely to be in a stronger position than those who simply react to rising costs.

The Iran conflict serves as another reminder that global events can have very real consequences for local construction projects. Effective planning, robust budgeting and informed procurement decisions are becoming increasingly important in protecting project viability.

At Bayview Projects, we continue to monitor market conditions and support developers, landowners and investors with cost planning, procurement advice and development appraisals to help projects remain commercially viable in an increasingly complex market.

If you would like an independent review of your development budget or procurement strategy, please contact Bayview Projects to discuss how we can help.