Supporters of a campaign to save Hadleigh’s Cox’s Park held a picnic on the open space on Saturday to gather support against plans to develop the site for luxury homes.
Earlier this year, the group organised a petition which was signed by more than 1,000 people to save the park, owned by Babergh District Council.
Campaigners say they are not against the council’s plans to develop East House, a former community centre which has been empty for several years.
But they say the land at the back of it should be kept for public open space as it has been walked on by the public for many years.
After withdrawing its original plans, the district council said it was “actively working on a revised application, with particular emphasis on open space provision”.
Picnic organiser Angela Wiltshire, from Castle Road, said: “We have found people to be unanimously supportive of the campaign, and against the park being developed as the council has proposed.
“It is our understanding that the council’s priorities should include maximising social and recreational opportunities.
“People understand that this land was given to the town for recreational use and won’t give up without a fight.”