| Number 2 | Castle Howard | The Council of the County Borough of Kingston-upon-Hull |
| Moorland House | The Council of the County Borough of Bradford |
| Moorside | The Council of the County Borough of Sheffield |
| Shadwell | The Council of the County Borough of Leeds |
| Stockton Hall | The Council of the County Borough of York |
| Thorparch Grange | The Council of the County Borough of Leeds |
| Number 3 | Blackburn House | The Council of the County Borough of Blackburn |
| Greystone Heath | The Council of the County Borough of Liverpool |
| Meadowcroft | The County Council of Lancashire |
| Mobberley | The Council of the County Borough of Manchester |
| Number 4 | Shawbury | The Council of the County Borough of Birmingham |
| Werrington | The County Council of Staffordshire |
| Number 5 | Desford | The Council of the County Borough of Leicester |
| Risley Hall | The County Council of Nottinghamshire |
| Skegby Hall | The County Council of Nottinghamshire |
| Number 6 | Chafford | The County Council of Essex |
| Kneesworth House | The County Council of Cambridgeshire and Isle of Ely |
| Number 7 | Danesbury | The County Council of Hertfordshire |
| Pishiobury | The County Council of Hertfordshire |
| Number 8 | St. Christopher's | The Council of the London Borough of Hillingdon |
| Number 9 | Banstead Hall | The County Council of Surrey |
| Hays Bridge | The County Council of Surrey |
| Mayford | The County Council of Surrey |
| Mile Oak | The County Council of East Sussex |
| North Downs | The County Council of Kent |
| Shermanbury Grange | The County Council of West Sussex |
| Walsh Manor | The County Council of East Sussex |
| Number 10 | Winton House | The County Council of Hampshire |
| Number 11 | The Crescent | The Council of the County Borough of Bristol |
| Jordan's Brook House | The County Council of Gloucestershire |
| Number 12 | Bryn-y-Don | A Joint Committee of the Council of the County Borough of Cardiff and the County Council of Glamorgan |
| Glamorgan Farm | The County Council of Glamorgan |
| Ty Mawr | The County Council of Breconshire |