| Duncombe Park NNR, North-east Yorkshire | England: North | 93 | 394.6 | 42 | < 2000 |
| Grimsthorpe Park, South Lincolnshire | England: Mid | 147 | 461.9 | 77 | < 2014 |
| Staverton Park, East Suffolk | England: South | 106 | 416.0 | 48 | < 1986 |
| Moccas Park, Herefordshire | England: Mid | 239 | 576.6 | 138 | < 1998 |
| Croome Park, Worcestershire | England: Mid | 110 | 564.5 | 62 | < 1999 |
| Epping Forest, South Essex | England: South | 252 | 560.3 | 128 | < 1979 |
| Box Hill, Surrey | England: South | 225 | 550.7 | 67 | < 1997 |
| Hainault Forest, South Essex | England: South | 94 | 403.2 | 41 | 1970 - 2007 |
| Windsor Forest, Berkshire | England: South | 363 | 801.7 | 254 | < 1998 |
| Croome Estate, Worcestershire | England: Mid | 175 | 616.6 | 109 | 1995 - 2016 |
| 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 |
| Ashtead Common NNR, Surrey | England: South | 282 | 635.1 | 161 | < 2023 |
Saproxylic Quality Index