| Richmond Park (total), Surrey | England: South | 253 | 628.5 | 158 | 1950 - 2006 |
| Icklingham Plains Area, West Suffolk | England: South | 75 | 437.3 | 31 | 1976 - 1997 |
| The Mens, West Sussex | England: South | 139 | 463.3 | 57 | < 2010 |
| Highgate Wood, Middlesex | England: South | 107 | 408.4 | 36 | < 2002 |
| Ashridge Estate (NT), Hertfordshire | England: South | 234 | 555.6 | 111 | 1986 - 2020 |
| Ickworth Park NT, West Suffolk | England: South | 176 | 497.7 | 74 | 1986 - 2022 |
| Abney Park Cemetery, Middlesex | England: South | 86 | 489.5 | 29 | 2006 - 2024 |
| Wimpole Hall Estate (NT), Cambridgeshire | England: South | 203 | 498.0 | 91 | 1986 - 2023 |
| Dinton Pastures Country Park, Berkshire | England: South | 145 | 503.4 | 52 | 1992 - 2024 |
Saproxylic Quality Index