The barns and farmhouse on a four-hectare space off Sywell Road, near Moulton, could be made part of an ambitious retirement complex for the elderly, and people in need of specialist care.
The plan by Vanderbilt Strategy Ltd could include a 70-bed care home as well as up to 109 houses, sheltered houses and retirement apartments. Up to 50 jobs could be created if it is given the go-ahead.
Vanderbilt Strategy hopes to redevelop some of the existing barns and the farmhouse into homes while keeping the 17th-Century Pytchley Gates as the entrance to the site.
Although the plan falls under Daventry District Council's jurisdiction it has been put to Northampton Borough councillors for consultation.
The masterplan was put to Daventry District Council on January 31.