DUNDRUM'S urban farm and gardens are to close for 18 months with the loss of up to 30 jobs.
The public will be able to visit Airfield until October 31 when it will shut for a major enhancement and revamp, reopening the in spring of 2013.
John O'Toole, head of finance and projects, said: "Regrettably, due to the closure of Airfield for a full 18 months, it will be necessary to end the contracts of up to 30 members of staff.
"The redundancies will include full-time, part-time and contract employees."
A "small number" of staff would be kept beyond the closure date to help, but it would then be necessary to hand over the entire site to the contractor, he said.
The new look Airfield will include three acres of a new garden area, with undercover space for classes, a new kitchen garden, and a new cafe, shop and parking. There will be an improved and more visitor friendly farm centre with upgraded facilities for the animals and the former home of the Overend family will have a major refurbishment.