Blenheim Palace will double its charity work as part of a £40m regeneration programme, its CEO has promised.
Dominic Hare said the World Heritage Site in Oxfordshire would increase its contribution to the local economy and be the “economic lifeblood of the area”.
Plans to build 300 homes on fields owned by the palace have already been approved, despite local opposition.
The 18th Century estate is the birthplace of Sir Winston Churchill.
Mr Hare said: “We believe there is no possible vision for a future successful and flourishing Blenheim which does not depend on a flourishing and successful set of communities around it – and the same is true in reverse.”
He added that the aim was to “act boldly, with a considered and long-term view of prosperity – for Blenheim and for the communities we support and who support us”.