Output dropped 9.9% from August after seasonal and working-day adjustments, according to the Central Statistical Office.
The annual decline was identical in both unadjusted and working-day-adjusted data. Construction output for the first nine months of 2026 remained unchanged from the same period a year earlier.
By type of construction, building output increased 5.3% in September, while civil engineering output fell 22.2%.
A separate breakdown by companies’ principal activities showed output rising 21.4% in the building construction division and falling 29.7% in civil engineering. Specialized construction activities, which carry the largest weight in the industry, recorded a 9.9% decline.
Within the civil engineering division, road and railway construction fell 20.9%, utility construction dropped 28%, and other civil engineering projects declined 79.9%.
New Contracts Drop Sharply
The volume of new contracts signed in September fell 34.5% year-on-year. New building construction contracts decreased 22.7%, while civil engineering contracts dropped 43.6%.
Construction companies’ total contract stock at the end of September was 14% below its level a year earlier. Building construction orders increased 2.1%, but civil engineering orders fell 19.2%.
Producer Prices Rise 5.5%
Construction producer prices increased 5.5% year-on-year in the third quarter and were 0.9% higher than in the preceding quarter.
Specialized construction activities recorded the largest annual price increase, at 6.2%. Prices rose 5.4% in civil engineering and 4.4% in the building construction division.



