Business optimism remained positive, though confidence cooled from July's five-month high
UK housebuilding activity fell at its sharpest rate of the current downturn in August, a development that could squeeze property supply and dampen mortgage lending volumes in the months ahead.
The seasonally adjusted S&P Global UK Construction PMI registered 44.3 in August, down from 44.7 in July. The reading has now remained below the 50.0 no-change threshold for twenty consecutive months.
Housing was the only one of three monitored sub-sectors where the pace of contraction quickened compared with July. The residential activity index came in at 37.6, its weakest level of the three segments tracked.
August's renewed slide follows a brief period of relative calm in July, when the headline index climbed to 44.7 from 38.4 in June, its strongest reading since March, following a six-year low of 38.2 the previous month.
All three sub-sectors had recorded slower rates of decline that month, with commercial work proving most resilient at 46.8 and housing contracting at its mildest pace since October 2025. The reversal in August suggests that stabilisation had not yet taken hold across the sector.
Commercial and civil engineering fare comparatively better
Commercial construction activity registered 47.8 in August, its slowest rate of decline since January. Civil engineering activity stood at 40.5, the smallest month-on-month decrease recorded since March.
Total new order intakes fell again during the month, though the rate of contraction was described as modest and the weakest since September 2025.
Survey respondents pointed to heightened risk aversion tied to the conflict in the Middle East and delayed client decision-making, while some firms cited improvements in infrastructure-related work.
The housing sector's difficulties in August continue a pattern stretching back several months. In June, construction firms cut jobs for the eighteenth consecutive month, with residential activity registering 35.6, its steepest monthly decline of 2026 at the time.
That downturn unfolded against Prime Minister Andy Burnham's stated plans for what he has called the biggest council house building programme since the post-war period, part of Labour's manifesto commitment to deliver 1.5 million homes in England by the end of the decade — a target that has faced criticism from industry bodies and opposition politicians over its feasibility.
Labour market shifts as firms turn to subcontractors
Employment across the construction sector declined again in August, attributed to a shortage of new business replacing completed projects alongside continued cost pressures. The pace of job losses was described as modest, the smallest since February.
Subcontractor usage rose for the first time in almost two years during the same period. This shift in workforce composition arrives alongside the wider slowdown in residential output.
Purchasing activity fell sharply in August, at a faster pace than the previous survey period. Softer demand eased some pressure on supply chains, though delivery times were largely unchanged, and several respondents referenced longer international shipping times.
Input prices rose again in August, driven by higher fuel costs, transport bills and raw material prices. The overall pace of input cost inflation nonetheless eased to its lowest level in six months, while rates charged by subcontractors increased at their slowest pace since March.
The implications for mortgage supply extend beyond the monthly PMI figures. New build completions in England fell to 202,800 homes in 2025, the lowest level since 2015 and 18% below 2019, leaving output nearly 100,000 homes short of the annual total required to meet government targets.
Housebuilders incurred an estimated £264.5 million in additional financing costs last year compared with a decade earlier.
Separately, lenders including Nationwide and Santander have already moved to adjust their new build lending criteria, with Nationwide raising its maximum LTV on new build houses to 95%.
ONS figures from late 2025 pointed to similar strain, with total construction output falling 0.3% in the three months to October and new work edging up just 0.1% over the same period.
Neil Leitch, managing director of Development Finance at Hampshire Trust Bank, warned at the time that "without stability and a functioning planning system the risk is that 2026 becomes another year where output falls well short of what the country needs," adding that a shortage of planning capacity risked widening the gap between permissions granted and schemes actually starting on site.
Tim Moore, economics director at S&P Global Market Intelligence, said construction firms "experienced another solid reduction in output volumes, with a faster downturn in house building the main reason for a weaker overall performance during August."
Moore added that subdued demand conditions, low client confidence and concerns tied to the Middle East conflict continued to weigh on workloads. He noted that total new business fell at its slowest pace in eleven months, with support from transport infrastructure work and activity in data centre and energy-related projects.
Business optimism among construction firms remained positive on balance, though sentiment cooled from July's five-month high. Around 38% of the survey panel anticipate an expansion of output over the coming year, while 20% forecast a downturn.
That divide echoes findings from Barclays' Business Prosperity Index earlier in the year, which found 83% of businesses linked to housebuilding and its supply chains remained optimistic about the following twelve months despite affordability constraints, regulatory demands and a cautious funding environment.
The research pointed to firmer activity at the start of the development pipeline, steady demand for new-build homes, and rising investment intentions.
Respondents to the August survey cited subdued client confidence, uncertain domestic economic prospects and concerns tied to the Middle East conflict as factors weighing on sentiment. Some firms noted hopes of a turnaround in tender opportunities, particularly for commercial work. Moore also noted that elevated borrowing costs were among the factors holding back confidence.
