The work will be funded by £250,000 from Hounslow and Ealing councils and English Heritage.
The works will focus on roofing and weather tightness for the large and small mansions, and the North East and West lodges. It was agreed through the Joint Project Board, with English Heritage putting £149,000 towards the work, and Hounslow and Ealing councils jointly funding the remaining £101,000.
John Laing Integrated Services has been appointed to carry out the work, which is part of the longer-term project to restore Gunnersbury as a significant heritage and leisure asset for the local and wider community.
Michael Jordan, Hounslow’s director of environment, said: “I am very pleased that working together with Ealing and English Heritage, we have been able to agree a way forward to secure Gunnersbury for future generations.”
Keith Townsend, executive director of environment and customer services at Ealing Council, said “This is the first step in a 15-year programme of restoration of the buildings and grounds in Gunnersbury Park. The council’s £5million investment, along with other streams of funding, will make a lasting difference to the park and local heritage.”