The project is now due to finish next July and to cost about £400m, but it is possible that these figures may not be final. The client imposed a freeze on design variations in April in an attempt to avoid further delay. Building understands, however, that there were 300 variations in July alone, and that there are 36 architects on site working on drawings.
In his report last week, presiding officer George Reid confirmed that completion of the whole scheme had been pushed back to July.
Although Reid would not be drawn in on the implications of the delay, the final cost of the parliament is understood to be £390-400m.
He said: "You will appreciate that the quantity surveyor is unable to quote specific figures before it has the opportunity to examine the final programmes; indeed to do so could be commercially damaging." Reid added that he expected further cost details next month.
The report attributes the delay mainly to glazing problems in the lightwell area of the debating chamber
The report attributes the delay mainly to glazing problems in the lightwell area of the parliament's debating chamber. It adds that installing anti-blast windows had hit the programme. The report said: "Meeting the blast criteria is resulting in major problems for the fixing of windows. Bolt holes have had to be re-drilled, which is time-intensive, and this has required the removal of some cladding elements."
Reid also announced that he had agreed a fee cap with the five main consultants – construction manager Bovis Lend Lease, quantity surveyor Davis Langdon & Everest, architects EMBT and RMJM and structural engineer Arup. Reid said this would make an immediate saving of £4.6m.
A Bovis spokesperson said it had agreed a lump sum on its fees and staff costs although the terms of the deal are confidential.