Britain’s construction industry contracted sharply in October 2026, with residential building activity suffering its steepest decline of the year, according to S&P Global’s latest UK Construction Purchasing Managers’ Index (PMI). Published on 5 November, the survey showed the headline index falling from 46.1 in September to 43.6 in October, its weakest reading since June.
Housebuilding leads the downturn
The residential construction index fell to 35.1, its lowest level since December 2025 and the sharpest decline recorded so far in 2026. Survey respondents cited weak consumer confidence, rising borrowing costs and economic uncertainty. A PMI reading below 50 indicates a decline in activity compared with the previous month; it is not a count of houses built.
Construction contracts for 22 consecutive months
The headline PMI remained below the 50-point threshold for the 22nd consecutive month. Reuters reported that October’s result was weaker than every forecast in its poll of economists, whose median prediction had been for an unchanged reading of 46.1. Commercial construction registered 46.3, while civil engineering recorded 45.9. Both contracted, although civil engineering experienced its slowest rate of decline since May 2025.
New orders fall and costs rise
New work received by construction firms fell at the fastest pace since June. Input-price inflation accelerated to a four-month high as businesses reported increased energy and fuel costs and more expensive materials. Some 48% of survey respondents reported higher input costs in October, compared with 25% in September. Supplier delivery times also lengthened.
Infrastructure provides limited support
Some respondents reported demand for data-centre, energy-network and utilities projects. Those areas helped cushion civil engineering activity but did not reverse the wider downturn. Only 34% of firms expected their output to increase over the next 12 months, compared with 27% expecting a decline, leaving the net balance of optimism at its weakest since May.
Questions for housing policy
The survey adds to concerns about the outlook for housing delivery and the commercial viability of new developments. RSM UK said developers faced rising build costs, weak demand and uncertainty over the timing of housing support measures. These are industry assessments, not proof that any single Government policy caused the contraction. The PMI tracks reported changes in activity among surveyed firms and cannot, by itself, establish how many homes were started or completed.
What happens next?
Further monthly PMI releases and official housing statistics will help establish whether the weakness persists into 2027. The latest survey points to a difficult near-term environment for housebuilders even as some infrastructure projects continue to attract work.