The main points:

Total construction output is estimated to have fallen by 1.1% in the three months to November 2025; this is the largest fall since March 2023 (1.4% fall).
Over the three-month period, both new work and repair and maintenance fell by 1.0% and 1.1%, respectively.
At the sector level, four out of the nine sectors fell in the three months to November 2025; the main negative contributor to the decrease was private housing repair and maintenance, which fell by 3.7%.
Monthly construction output is estimated to have fallen by 1.3% in November 2025; this follows a downwardly revised decrease of 1.2% in October 2025 and a 0.3% increase in September 2025.
The decrease in monthly output in November 2025 came from decreases in both new work and repair and maintenance, which fell by 1.9% and 0.4%, respectively.
Anecdotal evidence suggests that delays in work and customer spending were affected by economic uncertainty ahead of the autumn budget announcement.

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ONS Construction Output in Great Britain: Falls Again in November 2025