Revenue for the UK construction operations of the French conglomerate was £935m in 2015, down from £1,017m in 2014.
The pre-tax loss for the year was £69.4m, compared to a loss of £216.9m in 2014.
Turnover in civil engineering decreased from £304m in 2014 to £270m in 2015.
In the building division, turnover fell from £480m to £404m. Chairman Bruno Dupety said that this was deliberate, with fewer contract opportunities pursued.
Conversely, turnover in facilities management was up, from £214m in 2014 to £239m in 2015. This was mainly due to the acquisition in January 2015 of Faceo FM UK and Powertest.
The building division’s order book stood at £385m at the start of 2016; for civil engineering it was £401m; and for facilities management it was £317m.