| Savernake Forest, South Wiltshire | England: South-West | 111 | 436.9 | 50 | < 2004 |
| Thorne Moors, South-west Yorkshire | England: North | 86 | 269.8 | 16 | < 1985 |
| Moccas Park, Herefordshire | England: Mid | 239 | 566.5 | 139 | < 1998 |
| Old Cilgwyn, Cardiganshire | Wales | 64 | 265.6 | 13 | < 1998 |
| Coedmore NNR, Cardiganshire | Wales | 28 | 242.9 | 6 | < 1998 |
| Chirk Castle Park (NT), Denbighshire | Wales | 194 | 404.6 | 80 | 1993 - 2018 |
| High Park, Blenheim Palace, Oxfordshire | England: South | 261 | 600.4 | 159 | 1950 - 2021 |
| Burnham Beeches (inc. Dorneywood NT and Huntswood Farm), Buckinghamshire | England: South | 284 | 624.6 | 176 | < 2022 |
| Bredon Hill, Worcestershire | England: Mid | 218 | 613.8 | 141 | 1970 - 2021 |
| Burnham Beeches (s.s.), Buckinghamshire | England: South | 263 | 592.0 | 155 | < 2022 |
Saproxylic Quality Index