GLASGOW City Council chiefs will write to four bidders next week asking them to work up more financial details on a scheme to revamp a housing estate.
Officials from the housing department will ask Persimmon, Wimpey, Bellway and local outfit Muir Homes for more detailed prices on each of their bids.
A project source said the council was finding it difficult to compare the schemes financially because the firms had submitted very different proposals for the regeneration of the run-down Garthamlock estate.
He admitted: 'The financial aspects of the various projects are proving to be very difficult to assess. The council has not been prescriptive in its approach and this has obviously made bids harder to evaluate.'
Second stage tender documents were returned at the end of July and a preferred bidder will be selected in November. Site work is due to start early next year.
The five-year project is for the design, build, finance and operation of a 25-30 ha housing development with 800 owner-occupied homes and another 150 units set aside for social housing. It will also include retail and leisure units, community facilities and a health care centre.
The council has asked firms to work in innovative architecture.
Persimmon and Muir have both teamed up with housing associations - Homes in Scotland and Cube Housing respectively. Bellway is also working in conjunction with Thenew Housing Association. Wimpey has brought on board developer Cruden Estates.