Bristol’s charging schedule includes plans to charge developers of residential schemes up to £70 per square metre for floorspace, while retail schemes would face a charge of £120 per square metre.
But it says that commercial developments in use classes B1, B2 and B8 would not be subject to a CIL charge.
The document said: "Office schemes outside the city centre are currently unviable with any level of CIL applied.
"Within the city centre, a maximum rate of up to £40 per square metre could be applied, however, this would leave very little leeway to account for site-specific variations or reductions in rent levels.
"As the vast majority of office development in Bristol is planned to be in the city centre, setting any rate of CIL could put the development of the area at risk."
The consultation on Bristol City Council’s preliminary draft charging schedule runs until 20 January 2011.
The preliminary draft charging schedule can be viewed here.