Historic Parks & Gardens
Historic parks and gardens are identified by Historic England and are listed in a national register. The designation is non-statutory.
Sites are graded using the same symbols as for listed buildings (i.e. Grade I sites of exceptional historic interest; Grade II sites of special historic interest; Grade II* sites of great historic interest). These gradings are independent of the grading of any listed buildings which falls within their boundaries. The grading reflects the importance of the garden or park concerned, in comparisons with other gardens or parks in England as a whole.
List of Registered Historic Parks and Gardens
| Name and Grade | When Designated |
| Amport Park (Grade II) | 1984 |
| Awbridge Danes (Grade II) | 1993 |
| Broadlands, Romsey (Grade II*) | 1984 |
| Embley Park (Grade II) | 1984 |
| Houghton Lodge (Grade II*) | 1984 |
| Marsh Court, Stockbridge (Grade II*) | 1984 |
| Mottisfont Abbey (Grade II) | 1984 |
| Sir Harold Hillier Gardens and Arboretum, Ampfield (Grade II) | 1997 |