The DETR’s estimate for construction orders for March and April supports the controversial revision to the department’s statistics for orders between November 1988 and February 1999.

The provisional estimate shows that new orders between February and April of this year were 3% higher than the recalculated figures for the period November 1998 to January 1999.

The government’s statistics for the last quarter originally reported a dramatic 26% collapse in orders between December 1998 and February 1999 compared with the previous quarter.

The recalculated figures show that orders in the fourth quarter of 1998 were only 5% down on the third quarter and up 11% on the same period the previous year.

It is understood that a new computer system was to blame for the incorrect figures, which prompted widespread fears that construction was sliding into a deep recession.

Construction minister Nick Raynsford ordered an immediate investigation into the figures after industry complaints.