| Bushy Park & Home Park, Middlesex | England: South | 255 | 629.0 | 141 | 1996 - 2013 |
| Silwood Park, Berkshire | England: South | 159 | 605.0 | 86 | 1998 - 1999 |
| Windsor Forest, Berkshire | England: South | 363 | 801.7 | 254 | < 1998 |
| Hatfield Forest, North Essex | England: South | 245 | 591.4 | 138 | 1986 - 2018 |
| High Park, Blenheim Palace, Oxfordshire | England: South | 261 | 620.3 | 158 | 1950 - 2021 |
| Sydenham Hill & Dulwich Woods, Surrey | England: South | 92 | 406.5 | 30 | 1997 - 2023 |
| Burnham Beeches, Buckinghamshire | England: South | 263 | 599.6 | 154 | < 2022 |
| Burnham Beeches (inc. Dorneywood NT and Huntswood Farm), Buckinghamshire | England: South | 284 | 640.1 | 175 | < 2022 |
| Barnes Common, Surrey | England: South | 81 | 574.1 | 40 | 2020 - 2024 |
Saproxylic Quality Index