About 800 houses will have to be built each year to reach a target of 16,800 by 2029, the first public meeting to discuss the Calderdale Local Plan was told.
About 2,500 homes have already been built and planning permission exists for another 2,483.
The meeting at Brighouse High School was attended by nearly 20 residents who quizzed council planning officiers about future proposals for the area.
Phil Ratcliffe, development strategy officer, said the council had to produce a plan to avoid the risk of uncontrolled development.
“We want to be able to plan the infrastructure and support that would go alongside that development,” he said.
The aim is to publish the plan next November with a draft in place by March showing potential housing and employment sites, and open spaces and setting out policies for determining applications.
Out of the 10,941 new homes, 2,100 need to be built in Brighouse.
The next public meeting to discuss the Calderale Plan will be held on Wednesday, November 7, at the Wainwright Hall, Elland; on November 20 at Todmorden Town Hall, on November 22 at Calder High School, Mytholmroyd, on November 26 at Halifax Central Library, on November 29 at Ripponden Primary School and on December 4 at Hebden Bridge Town Hall.
Most drop-in sessions begin at 4.30pm and the meetings at 6.45pm.
Further details are available on 01422 392317 and for specific documents go to http://calderdale.objective.co.uk/portal/planning_services/