The research by the AJ's sister website www.qsweek.comclaims that under two thirds of QSs think architects will fail to design to Part L within realistic cost restraints.
One sceptical respondent said architects had a history of 'busting budgets' and Part L revisions would only exacerbate the problem.
'Eventually they will be able to but only as more information becomes available,' she told QS Week. 'It's now even more crucial for project managers to control architects until they fully comprehend the implications of Part L.'
Another survey respondent said, 'Part L is adding approximately five per cent to budgets. With effort architects might be able to work within specified costings but it will take time.'
Some 56 per cent of those surveyed thought prices would rise on average between 5 and 9 per cent, but 10 per cent envisaged rises of more than 10 per cent.