The proposal for the community stadium for Boston United football club would also include 500 homes, shops, leisure and commercial development on land at Wyberton.
Members of Boston Borough Council’s planning committee approved the application by ten votes to two last night.
The officers’ report noted that the application was a departure from the town’s development plan.
However, the local plan is not up to date and therefore the council cannot consider the application against it, it said.
Planning officers judged that the club’s urgent need for a new stadium in order to continue to be a viable football club was a significant material consideration.
The council received a 556-signature petition in favour of the application, it noted.
The scheme has been helped by pre-application discussions, the report noted. "Although there remain substantial numbers of representations against the application there are larger numbers in support and that many early concerns have been addressed is an indication of the importance and advantages of pre- application engagement, both with this, other authorities and the community," the report states.
The scheme could now be called in by the secretary of state, it noted.
Boston United chairman David Newton said: "I am delighted that the planning committee overwhelmingly supported the application which I believe is not only significant for the future of our fantastic football club, but also for the town as a whole."