| Duncombe Park NNR, North-east Yorkshire | England: North | 93 | 409.7 | 42 | < 2000 |
| Powis Castle Park (total), Montgomeryshire | Wales | 170 | 380.0 | 71 | 1994 - 2003 |
| Moccas Park, Herefordshire | England: Mid | 239 | 566.5 | 139 | < 1998 |
| Abernethy Estate, East Inverness-shire | Scotland | 142 | 678.2 | 18 | < 1994 |
| Dinefwr Deer Park, Carmarthenshire | Wales | 156 | 385.3 | 57 | < 1999 |
| Hardwick Park (NT), Derbyshire | England: Mid | 115 | 350.4 | 37 | 1984 - 2004 |
| Llanover Park, Monmouthshire | Wales | 118 | 342.4 | 37 | < 1996 |
| Cadzow & Hamilton High Parks, Lanarkshire | Scotland | 44 | 365.9 | 18 | < 2010 |
| Parc Nanteos, Cardiganshire | Wales | 45 | 244.4 | 7 | < 1999 |
| Hafod Estate, Cardiganshire | Wales | 25 | 268.0 | 3 | < 1998 |
| Coed Mynachlog-fawr, Cardiganshire | Wales | 29 | 258.6 | 3 | < 1994 |
| Bothwell Castle, Lanarkshire | Scotland | 38 | 355.3 | 13 | < 2011 |
| Auchinleck Estate, Ayrshire | Scotland | 39 | 284.6 | 9 | 2013 - 2016 |
| Bothwell Castle (update), Ayrshire | Scotland | 35 | 334.3 | 13 | 1960 - 2016 |
| Lyme Park (NT), Cheshire | England: Mid | 56 | 230.4 | 5 | 1996 - 2019 |
| Ashridge Estate (NT), Hertfordshire | England: South | 234 | 555.6 | 111 | 1986 - 2020 |
| Millichope Park, Shropshire | England: Mid | 103 | 413.6 | 52 | 2020 - 2021 |
| Robinson Place Farm, Westmorland (with Furness) | England: North | 26 | 253.8 | 7 | 2021 |
| Tatton Park (2021), Cheshire | England: Mid | 102 | 432.4 | 46 | 2021 |
| Tatton Park (2011-21), Cheshire | England: Mid | 122 | 427.0 | 54 | 2011 - 2021 |
| Chirk Castle Park (NT), Denbighshire | Wales | 194 | 404.6 | 80 | 1993 - 2018 |
| Wye Valley Woods SAC, Monmouthshire | Wales | 132 | 448.5 | 50 | 1994 - 2018 |
| Robinson Place Farm, Westmorland (with Furness) | England: North | 53 | 224.5 | 9 | 2021 - 2022 |
| Ayr Gorge, Ayrshire | Scotland | 57 | 319.3 | 12 | 1960 - 2020 |
| Little Doward Woods, Herefordshire | England: Mid | 200 | 554.5 | 96 | 2024 |
Saproxylic Quality Index