The document proposes charges of between £0 and £60 per square metre of residential space and £30 to £100 per square metre of retail space.
Exemptions from the proposed charges include any new build of less than 100 square metres of internal floor space, a new building built for and occupied by a charitable organisation, social housing and change of use.
Ted Fry, cabinet member for planning, strategic housing and economic development, said: "Our officers have been talking to developers and one described this levy as the most significant thing the council will do this year.
"We have taken strong account of development viability and have tried to keep the charges as low as possible."
A consultation on the preliminary draft charging schedule runs until 13 December.