| Allt-yr-esgair, Breconshire | Wales | 57 | 335.1 | 16 | < 2000 |
| Grimsthorpe Park, South Lincolnshire | England: Mid | 147 | 461.9 | 78 | < 2014 |
| Monks Wood NNR, Huntingdonshire | England: Mid | 157 | 415.9 | 48 | < 1973 |
| Box Hill, Surrey | England: South | 225 | 552.0 | 68 | < 1997 |
| Dinefwr Deer Park, Carmarthenshire | Wales | 156 | 385.3 | 57 | < 1999 |
| Milton-Lockhart Estate, Lanarkshire | Scotland | 55 | 356.4 | 12 | < 2009 |
| Carn Gafallt, Breconshire | Wales | 84 | 352.4 | 23 | < 2015 |
| Chirk Castle Park (NT), Denbighshire | Wales | 194 | 404.6 | 80 | 1993 - 2018 |
| Thorndon Park SSSI, South Essex | England: South | 66 | 553.0 | 48 | 2023 |
| Ashtead Common NNR, Surrey | England: South | 282 | 633.7 | 162 | < 2023 |
| Shorne Woods CP, West Kent | England: South | 36 | 386.1 | 11 | 2024 |
| Little Doward Woods, Herefordshire | England: Mid | 200 | 554.5 | 96 | 2024 |
Saproxylic Quality Index