Calls have been made to hold a referendum on proposals to make Wisbech a garden town.
Fenland District Council is hoping to ease the housing pressure around Cambridge while regenerating Wisbech and helping to bring about transport improvements under the new proposal.
Between 8,000 and 10,000 homes could be built to the western and eastern edges of the town, along with the introduction of a Local Enterprise Zone.
But Wisbech town councillor Steve Tierney has called for a referendum to be held on the proposal.
Speaking at the latest town council meeting Cllr Tierney said: “We are elected representatives, but sometimes a change is too big. An additional 20,000 people changes the face of the town and, in this instance, I would like to ask the people of the town what they think.”
The district council’s corporate director Gary Garford outlined the proposal to members and said it was a “game changer” for the town.
Cllr Sam Hoy questioned whether the plan would help local people, who are already struggling to get on the housing ladder.
The application has been included within the power devolution deal for the east of England.