UK construction activity tumbles as Iran war pushes up costs, RICS survey shows
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UK construction activity tumbles as Iran war pushes up costs, RICS survey shows

Published by Global Banking & Finance Review

Posted on May 6, 2026

2 min read

· Last updated: May 6, 2026

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UK Construction Falls Sharply Amid Rising Costs from Iran War, RICS Finds

RICS Survey Reveals Impact on UK Construction Sector

Sharp Decline in Construction Activity

LONDON, May 7 (Reuters) - Activity in Britain's construction sector shrank at the strongest pace in almost six years in the three months to March, according to a survey on Thursday that also showed the war in Iran had increased firms' costs.

The Royal Institution of Chartered Surveyors said the industry's net workloads balance dropped to -12% in the first quarter, down from -6% in the previous quarter. Thursday's reading was the weakest since the three months to June 2020 when it dropped to -36 as building sites were closed due to the COVID-19 lockdown.

Expert Commentary on Industry Challenges

"The impact of the war in the Middle East is clearly visible in the Q1 RICS Construction Monitor. Rising material costs, a tougher credit environment and increased pressure on margins are already leading some developers to slow construction activity," RICS Chief Economist Simon Rubinsohn said.

Key Findings from the RICS Survey

The survey also showed:

Factors Affecting Sentiment and Margins

• War in Iran as well as concerns about oil prices and material costs weighed on sentiment

• Business' profit margin expectations dropped sharply to -27, weakest since Q4 2022

Rising Costs and Future Expectations

• Construction costs expected to rise by 6.6% over the next 12 months, materials costs projected to jump by 7.5%

• Companies in the private sector are scaling back plans for the coming year

• Expectations for house-building are now flat as firms worry about impact of planning changes

Employment and Infrastructure Outlook

• A net balance of +8 firms expect to increase hiring compared to +14 in the previous quarter

• Infrastructure only bright spot, although momentum is fading

• The quarterly survey was based on responses from 938 firms

(Reporting by Suban Abdulla; editing by David Milliken)

Key Takeaways

  • RICS workloads balance plunged to –12% in Q1 2026 from –6% in Q4 2025, the weakest reading since Q2 2020 when lockdowns shuttered sites (specificationonline.co.uk).
  • Pressure from the Iran war and supply‑chain disruptions pushed material costs up (forecast at +7.5%) and overall construction costs to rise by 6.6% over the coming year (ww3.rics.org).
  • Profit margins collapsed to –27%, the weakest since Q4 2022, as developers scaled back private sector activity, though infrastructure remains a relative bright spot (specificationonline.co.uk).

References

Frequently Asked Questions

What caused the drop in UK construction activity in early 2024?
The drop was mainly due to rising material costs, the war in Iran, and a tougher credit environment, as reported by the RICS survey.
How much did construction workloads decline according to the RICS survey?
The RICS survey showed net workloads balance dropped to -12% in Q1 2024, down from -6% in the previous quarter.
How has the war in Iran impacted the UK construction sector?
The war in Iran raised material and oil costs, increasing pressure on profit margins and leading some developers to slow activity.
What are the profit margin expectations for UK construction firms?
Profit margin expectations dropped sharply to -27, the weakest since Q4 2022, according to the RICS survey.
Are there any positive trends in the UK construction sector?
Infrastructure remains a bright spot, though overall momentum is fading, as per the RICS report.

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