| Forest of Dean, West Gloucestershire | England: Mid | 89 | 428.1 | 30 | 1965 - 1998 |
| Powis Castle Park (total), Montgomeryshire | Wales | 170 | 372.9 | 70 | 1994 - 2003 |
| Monks Wood NNR, Huntingdonshire | England: Mid | 157 | 414.0 | 48 | < 1973 |
| New Forest, South Hampshire | England: South | 324 | 782.7 | 200 | < 2000 |
| Oyster Wood, Surrey | England: South | 117 | 395.7 | 24 | < 1993 |
| Savernake Forest, South Wiltshire | England: South-West | 111 | 435.1 | 50 | < 2004 |
| Esher Commons (total), Surrey | England: South | 234 | 498.3 | 84 | < 2002 |
| Box Hill, Surrey | England: South | 225 | 550.7 | 67 | < 1997 |
| Hatchlands Park, Surrey | England: South | 164 | 407.3 | 64 | < 2002 |
| Chiddingfold Woods, Surrey | England: South | 164 | 371.3 | 37 | < 2003 |
| Drayton Copse, Oxfordshire | England: South | 76 | 339.5 | 19 | < 1999 |
| Hutchin's Copse, Oxfordshire | England: South | 78 | 334.6 | 16 | < 1999 |
| Cwm Clydach NNR, Breconshire | Wales | 24 | 279.2 | 9 | 1990 - 2002 |
| Grange Farm, Chigwell, South Essex | England: South | 29 | 458.6 | 16 | < 1999 |
| Windsor Forest, Berkshire | England: South | 363 | 801.7 | 254 | < 1998 |
| Gibside, County Durham | England: North | 83 | 397.6 | 13 | < 1992 |
| Chirk Castle Park (NT), Denbighshire | Wales | 194 | 396.4 | 79 | 1993 - 2018 |
| Ashtead Common NNR, Surrey | England: South | 282 | 635.1 | 161 | < 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 |
Saproxylic Quality Index