Analysis Cites Sector Pressures From Iran War as Project Starts Nosedive

Why It Matters

The slowdown signals tighter financing and higher material costs for builders, potentially delaying delivery of critical infrastructure and housing projects. Investors and contractors must adjust strategies as geopolitical tensions continue to shape market dynamics.

Key Takeaways

• Project starts fell 20% YoY in Q1 2026
• Main contract awards rose 30% QoQ despite start decline
• Office starts jumped 75% YoY, driven by data‑centre projects
• Planning approvals halved YoY, indicating funding constraints
• Iran conflict fuels inflation, raising construction costs industry‑wide

Pulse Analysis

The latest Glenigan data paints a stark picture for the UK construction market, where geopolitical turbulence from the Iran war is amplifying existing macroeconomic headwinds. Higher oil prices are feeding through the supply chain, inflating energy, material and transport costs at a time when inflation remains stubbornly high. Coupled with a fading prospect of interest‑rate cuts, developers are adopting a more defensive stance, postponing new projects until economic stability returns. This environment is eroding confidence across the sector, from contractors to product manufacturers, and is reflected in the 20% year‑on‑year decline in project starts.

Nevertheless, the sector is not uniformly bleak. Office construction defied the downturn, surging 75% YoY, largely propelled by data‑centre builds that remain essential for digital infrastructure. Housing contracts also showed resilience, with a 41% increase in main contract awards, driven by social‑sector projects. Conversely, civil engineering saw an 11% rise in awards but a sharp 81% drop in planning approvals, underscoring a disconnect between pipeline ambition and funding certainty. Detailed planning approvals halved compared with 2025, highlighting tighter capital availability and heightened risk aversion among investors.

Looking ahead, the construction industry must navigate a complex mix of inflationary pressure, skills shortages and regulatory burdens. Firms that can lock in long‑term supply contracts, diversify into resilient subsectors like data‑centres, and leverage public‑sector housing initiatives may mitigate some of the downside. However, without a de‑escalation of the Iran conflict or a shift in monetary policy, cost escalations and cautious financing are likely to persist, keeping the sector in a prolonged state of uncertainty.