The main points:

Total construction output is estimated to have fallen by 2.1% in Quarter 4 (Oct to Dec 2025) compared with Quarter 3 (July to Sept 2025); new work and repair and maintenance both fell by 2.6% and 1.5%, respectively.
At the sector level, seven out of the nine sectors fell in Quarter 4 2025; the main negative contributor to the decrease was private new housing, which fell by 3.6%.
Monthly construction output is estimated to have fallen by 0.5% in December 2025, this follows an upwardly revised decrease of 0.8% in November 2025 and a downwardly revised decrease of 1.6% in October 2025.
The decrease in monthly output in December 2025 came solely from a decrease of 2.5% in repair and maintenance, as new work grew by 1.0%.
Annual construction output increased by 1.8% in 2025 compared with 2024; this is the fifth consecutive year of annual growth.
The annual rate of construction output price growth was 2.7% in the 12 months to December 2025.
Total construction new orders fell by 3.8% (£469 million) in Quarter 4 2025 compared with Quarter 3 2025; this quarterly decrease came mainly from private commercial new work and private industrial new work.

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ONS Construction Output in Great Britain: Increases by 1.8% Y-o-Y in 2025