The 26 hectare Grade I listed estate is maintained by a Chiswick House and Gardens Trust (CHGT) team, a garden estate manager, a kitchen gardener, gardener, assistant gardener and gardens ranger who work with more than 50 volunteers on the walled garden, formal gardens and conservation works. A head gardener and gardener from contractor Gavin Jones maintain all the lawns, hedges, sports facilities and collect litter.
CHGT garden estate manager Geraldine King said: "I am absolutely delighted that the hard work of the Trust team, Gavin Jones and our volunteers has been recognised through the awards we have received today. The results reflect the care, commitment and dedication that they have all given in maintaining and advancing this Grade I listed estate and I am very proud to be part of this team."
Kitchen gardener William Rallison and Gavin Jones employee Jaimie Cook both also received awards.
In June this year, Chiswick house and Gardens Trust picked up the Best Gardens Partnership award in the inaugural Horticulture Week Custodian Awards for their grounds maintenance partnership with Gavin Jones.
The Custodian Award recognised the strong relationship between the trust and Gavin Jones known as "The One Team".