| Swanton Novers, West Norfolk | England: South | 95 | 337.9 | 32 | 1981 - 2010 |
| Grimsthorpe Park, South Lincolnshire | England: Mid | 147 | 461.9 | 77 | < 2014 |
| Bushy Park & Home Park, Middlesex | England: South | 255 | 620.4 | 141 | 1996 - 2013 |
| New Forest, South Hampshire | England: South | 324 | 771.6 | 200 | < 2000 |
| Oyster Wood, Surrey | England: South | 117 | 401.7 | 24 | < 1993 |
| Langley Park, Buckinghamshire | England: South | 152 | 649.3 | 110 | 1979 - 2008 |
| Richmond Park (total), Surrey | England: South | 253 | 628.5 | 157 | 1950 - 2006 |
| Parham Park, West Sussex | England: South | 81 | 509.9 | 42 | 1983 - 2012 |
| Box Hill, Surrey | England: South | 225 | 552.0 | 67 | < 1997 |
| Dunham Park (total), Cheshire | England: Mid | 151 | 464.2 | 60 | < 1977 |
| Black Wood of Rannoch, Mid Perthshire | Scotland | 74 | 563.5 | 8 | < 1990 |
| Ebernoe Common, West Sussex | England: South | 141 | 497.9 | 53 | < 2011 |
| The Mens, West Sussex | England: South | 139 | 463.3 | 56 | < 2010 |
| Buxted Park, East Sussex | England: South | 134 | 400.7 | 43 | < 1999 |
| Highgate Wood, Middlesex | England: South | 107 | 408.4 | 36 | < 2002 |
| St Fagans, Glamorganshire | Wales | 58 | 382.8 | 15 | 1997 - 1999 |
| Coed Cae-bach, Glamorganshire | Wales | 18 | 288.9 | 6 | < 1994 |
| Windsor Forest, Berkshire | England: South | 363 | 765.8 | 254 | < 1998 |
| Forest of Bere, South Hampshire | England: South | 108 | 468.5 | 42 | < 1975 |
| Dulverton Woods, South Somerset | England: South-West | 51 | 294.1 | 12 | < 2002 |
| Kingston Lacy Park, Dorset | England: South-West | 64 | 417.2 | 26 | 2004 |
| Richmond Park (1980-2006), Surrey | England: South | 205 | 535.1 | 110 | 1980 - 2006 |
| Hatfield Forest, North Essex | England: South | 245 | 568.6 | 138 | 1986 - 2018 |
| Ashridge Estate (NT), Hertfordshire | England: South | 234 | 555.6 | 110 | 1986 - 2020 |
| Nettlecombe Park, South Somerset | England: South-West | 129 | 355.0 | 57 | 1988 - 2019 |
| Petworth Deer Park (NT), West Sussex | England: South | 195 | 500.5 | 85 | 1988 - 2020 |
| High Park, Blenheim Palace, Oxfordshire | England: South | 261 | 600.4 | 158 | 1950 - 2021 |
| Oxburgh Hall, West Norfolk | England: South | 96 | 447.9 | 36 | 2013 - 2022 |
| Thorndon Park SSSI, South Essex | England: South | 66 | 553.0 | 47 | 2023 |
| Ashtead Common NNR, Surrey | England: South | 282 | 633.7 | 161 | < 2023 |
| Weald Country Park (2010), South Essex | England: South | 44 | 579.5 | 31 | 2010 |
| Weald Country Park (total), South Essex | England: South | 128 | 495.3 | 63 | < 2010 |
| Dinton Pastures Country Park, Berkshire | England: South | 145 | 503.4 | 52 | 1992 - 2024 |
Saproxylic Quality Index