Osterley Park and House, London (Accredited Museum)
Erddig, Wrexham (Accredited Museum)
Knightshayes Court, Devon (Accredited Museum)
Killerton, Devon (Accredited Museum)
Sissinghurst Castle Garden, Kent (Accredited Museum)
Bateman's, East Sussex (Accredited Museum)
Greenway, Devon (Accredited Museum)
Mount Stewart, County Down (Accredited Museum)
Lanhydrock, Cornwall (Accredited Museum)
Gibside, Tyne and Wear
Wallington, Northumberland (Accredited Museum)
Bradley Manor, Devon
Arlington Court, Devon (Accredited Museum)
Hinton Ampner, Hampshire (Accredited Museum)
Castle Drogo, Devon (Accredited Museum)
Dorneywood House and Gardens, Buckinghamshire
Kingston Lacy Estate, Dorset (Accredited Museum)
Belton House, Lincolnshire (Accredited Museum)
Castle Ward, County Down (Accredited Museum)
J. Seymour Lindsay
Owletts, Kent
Cragside, Northumberland (Accredited Museum)
Scotney Castle, Kent (Accredited Museum)
Shugborough Estate, Staffordshire
Wimpole, Cambridgeshire (Accredited Museum)
