| Buddon Wood (total), Leicestershire (with Rutland) | England: Mid | 124 | 411.3 | 36 | < 1988 |
| Glen Affric, East Inverness-shire | Scotland | 66 | 450.0 | 11 | < 2014 |
| Duncombe Park NNR, North-east Yorkshire | England: North | 93 | 394.6 | 42 | < 2000 |
| Powis Castle Park (total), Montgomeryshire | Wales | 170 | 372.9 | 70 | 1994 - 2003 |
| Great Ridge, South Wiltshire | England: South-West | 46 | 415.2 | 12 | 1980 - 2004 |
| Central Lincs. Limewoods, North Lincolnshire | England: Mid | 123 | 351.2 | 25 | < 1998 |
| Longleat, South Wiltshire | England: South-West | 46 | 280.4 | 11 | 1994 - 2004 |
| New Forest, South Hampshire | England: South | 324 | 782.7 | 200 | < 2000 |
| Sandall Beat, South-west Yorkshire | England: North | 64 | 264.1 | 5 | < 2000 |
| Ulverscroft, Leicestershire (with Rutland) | England: Mid | 47 | 197.9 | 10 | < 1998 |
| Abernethy Estate, East Inverness-shire | Scotland | 142 | 663.4 | 18 | < 1994 |
| Arundel Park, West Sussex | England: South | 130 | 475.4 | 53 | < 1999 |
| Esher Commons (total), Surrey | England: South | 234 | 498.3 | 84 | < 2002 |
| Dunham Park (total), Cheshire | England: Mid | 151 | 468.9 | 60 | < 1977 |
| Bentley Park Wood, Warwickshire | England: Mid | 62 | 264.5 | 12 | < 2000 |
| Newborough Forest, Anglesey | Wales | 21 | 209.5 | 0 | < 2010 |
| Windsor Forest, Berkshire | England: South | 363 | 801.7 | 254 | < 1998 |
| Forest of Bere, South Hampshire | England: South | 108 | 466.7 | 42 | < 1975 |
| Buddon Wood (post 1980), Leicestershire (with Rutland) | England: Mid | 79 | 308.9 | 14 | 1980 - 1988 |
| Studley Royal, Mid-west Yorkshire | England: North | 100 | 328.0 | 33 | 1901 - 2016 |
| Sutton Park (1996-2019), Warwickshire | England: Mid | 57 | 303.5 | 14 | 1996 - 2019 |
| Felbrigg Hall Estate (NT), East Norfolk | England: South | 135 | 376.3 | 45 | 1988 - 2018 |
| Attingham Park NT, Shropshire | England: Mid | 102 | 308.8 | 37 | 1985 - 2013 |
| Chirk Castle Park (NT), Denbighshire | Wales | 194 | 396.4 | 79 | 1993 - 2018 |
| Holmwood, Surrey | England: South | 47 | 287.2 | 7 | 2015 - 2022 |
| Clumber Park (NT), Nottinghamshire | England: Mid | 177 | 422.0 | 75 | 1990 - 2023 |
| High Park, Blenheim Palace, Oxfordshire | England: South | 261 | 620.3 | 158 | 1950 - 2021 |
| Burnham Beeches, Buckinghamshire | England: South | 263 | 599.6 | 154 | < 2022 |
| Burnham Beeches (inc. Dorneywood NT and Huntswood Farm), Buckinghamshire | England: South | 284 | 640.1 | 175 | < 2022 |
Saproxylic Quality Index