| Swanton Novers, West Norfolk | England: South | 95 | 337.9 | 32 | 1981 - 2010 |
| Bushy Park & Home Park, Middlesex | England: South | 255 | 620.4 | 142 | 1996 - 2013 |
| New Forest, South Hampshire | England: South | 324 | 771.6 | 201 | < 2000 |
| Silwood Park, Berkshire | England: South | 159 | 613.2 | 86 | 1998 - 1999 |
| Richmond Park (total), Surrey | England: South | 253 | 628.5 | 158 | 1950 - 2006 |
| Cowdray Park, West Sussex | England: South | 121 | 526.4 | 59 | 2011 |
| The Mens, West Sussex | England: South | 139 | 463.3 | 57 | < 2010 |
| Dinefwr Deer Park, Carmarthenshire | Wales | 156 | 385.3 | 57 | < 1999 |
| Windsor Forest, Berkshire | England: South | 363 | 765.8 | 255 | < 1998 |
| Richmond Park (1980-2006), Surrey | England: South | 205 | 535.1 | 111 | 1980 - 2006 |
| Croft Castle, Herefordshire | England: Mid | 121 | 404.1 | 52 | < 2012 |
| Shotover Hill, Oxfordshire | England: South | 155 | 441.3 | 72 | 1999 - 2017 |
| Hatfield Forest, North Essex | England: South | 245 | 568.6 | 139 | 1986 - 2018 |
| Haddon Hall, Derbyshire | England: Mid | 28 | 432.1 | 11 | 2018 |
| Ashridge Estate (NT), Hertfordshire | England: South | 234 | 555.6 | 111 | 1986 - 2020 |
| Tatton Park (2021), Cheshire | England: Mid | 102 | 432.4 | 46 | 2021 |
| Tatton Park (2011-21), Cheshire | England: Mid | 122 | 427.0 | 54 | 2011 - 2021 |
| Petworth Deer Park (NT), West Sussex | England: South | 195 | 500.5 | 85 | 1988 - 2020 |
| Chirk Castle Park (NT), Denbighshire | Wales | 194 | 404.6 | 80 | 1993 - 2018 |
| Combermere Park, Cheshire | England: Mid | 83 | 406.0 | 42 | 2022 |
| Panshanger Park (1990-2022), Hertfordshire | England: South | 156 | 530.8 | 93 | 1990 - 2022 |
| Sheringham Park (NT), East Norfolk | England: South | 88 | 326.1 | 25 | 1987 - 2022 |
| High Park, Blenheim Palace, Oxfordshire | England: South | 261 | 600.4 | 159 | 1950 - 2021 |
| Haywood Oaks Farm , Nottinghamshire | England: Mid | 39 | 397.4 | 19 | 2023 |
| Oxburgh Hall, West Norfolk | England: South | 96 | 447.9 | 36 | 2013 - 2022 |
| Ashtead Common NNR, Surrey | England: South | 282 | 633.7 | 162 | < 2023 |
| Burnham Beeches (inc. Dorneywood NT and Huntswood Farm), Buckinghamshire | England: South | 284 | 624.6 | 176 | < 2022 |
| Barnes Common, Surrey | England: South | 81 | 550.6 | 40 | 2020 - 2024 |
| 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 |
| Turnworth Common, Dorset | England: South-West | 120 | 475.0 | 63 | 2018 - 2023 |
| Dinton Pastures Country Park, Berkshire | England: South | 145 | 503.4 | 52 | 1992 - 2024 |
| Burnham Beeches (s.s.), Buckinghamshire | England: South | 263 | 592.0 | 155 | < 2022 |
| Diseworth Farmland, Leicestershire (with Rutland) | England: Mid | 43 | 407.0 | 14 | 2024 |
| Little Doward Woods, Herefordshire | England: Mid | 200 | 554.5 | 96 | 2024 |
Saproxylic Quality Index