Judith Gillespie, the SPTC's development manager, said schools would suffer as a result of what was simply an accounting exercise to reduce the public sector borrowing requirement.
Ms Gillespie said: 'I do not think anyone is convinced about it being cheaper. This is very much a matter of it being done by mirrors and removing capital spending on schools to ensure that the government can keep within its PSBR targets.'
She added that private ownership could see the end of low-cost community facilities in favour of commercially-run night classes.
'Cleaning in Edinburgh schools became so bad recently that some schools were threatening to shut down because they were health hazards,' she said.