| Powis Castle Park (total), Montgomeryshire | Wales | 170 | 380.0 | 71 | 1994 - 2003 |
| River Soar, Leicestershire (with Rutland) | England: Mid | 66 | 304.5 | 12 | < 1980 |
| Langley Park, Buckinghamshire | England: South | 152 | 649.3 | 111 | 1979 - 2008 |
| Richmond Park (total), Surrey | England: South | 253 | 628.5 | 158 | 1950 - 2006 |
| Moccas Park, Herefordshire | England: Mid | 239 | 566.5 | 139 | < 1998 |
| Stanford PTA, West Norfolk | England: South | 183 | 416.9 | 74 | 1980 - 2009 |
| Kedleston Park NT, Derbyshire | England: Mid | 143 | 378.3 | 58 | < 2014 |
| Windsor Forest, Berkshire | England: South | 363 | 765.8 | 255 | < 1998 |
| Kemerton Estate, Worcestershire | England: Mid | 170 | 437.1 | 75 | 1992 - 2014 |
| 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 |
| Ashtead Common NNR, Surrey | England: South | 282 | 633.7 | 162 | < 2023 |
| Bredon Hill, Worcestershire | England: Mid | 230 | 597.0 | 145 | 1970 - 2025 |
Saproxylic Quality Index