Plans for 1,560 homes east of Watermead have been unanimously rejected by a council committee.
Hallam Land had wanted to build on the greenfield site, but opponents warned the development would swamp Watermead and Bierton and cause traffic chaos.
A report by the council planning officer in charge of the case published last week slammed the plan, saying the proposal would damage the environment, be a flood risk, fail to provide employment and was out of keeping with the council’s own long-term plan for development in the Vale.
Case officer Claire Harrison recommended councillors refuse planning permission and this afternoon (Wednesday) members of Aylesbury Vale District Council’s strategic development control committee supported that recommendation.
It is not known at this stage if Hallam Land will appeal the decision.
Parish council chairman Sue Severn said they were delighted with the decision and ‘cautiously optimistic’ about the possibility of an appeal.
She said: “We will be looking out for an appeal and will vigorously defend our position.
“We are delighted with the support that we have had for our position from the community.
“It just proves that there is strength in numbers and that if a community pulls together it’s possible to achieve your goal.”