| Calke Abbey NT, Derbyshire | England: Mid | 165 | 417.6 | 74 | 1998 - 2004 |
| Buddon Wood (total), Leicestershire (with Rutland) | England: Mid | 124 | 411.3 | 36 | < 1988 |
| Forest of Dean, West Gloucestershire | England: Mid | 89 | 428.1 | 30 | 1965 - 1998 |
| Bradgate Park (total), Leicestershire (with Rutland) | England: Mid | 84 | 356.0 | 29 | < 1998 |
| Lullingstone Park, West Kent | England: South | 105 | 464.8 | 42 | < 1977 |
| Monks Wood NNR, Huntingdonshire | England: Mid | 157 | 414.0 | 48 | < 1973 |
| New Forest, South Hampshire | England: South | 324 | 782.7 | 200 | < 2000 |
| Nupend Wood, Herefordshire | England: Mid | 46 | 397.8 | 18 | 2002 - 2003 |
| Sandall Beat, South-west Yorkshire | England: North | 64 | 264.1 | 5 | < 2000 |
| Woolmer Forest, North Hampshire | England: South | 97 | 305.2 | 16 | 1950 - 2003 |
| Rug, Merionethshire | Wales | 47 | 240.4 | 8 | < 1994 |
| Langley Park, Buckinghamshire | England: South | 152 | 686.2 | 110 | 1979 - 2008 |
| Richmond Park (total), Surrey | England: South | 253 | 644.3 | 157 | 1950 - 2006 |
| Moccas Park, Herefordshire | England: Mid | 239 | 576.6 | 138 | < 1998 |
| Epping Forest, South Essex | England: South | 252 | 560.3 | 128 | < 1979 |
| Abernethy Estate, East Inverness-shire | Scotland | 142 | 663.4 | 18 | < 1994 |
| Cliveden NT, Buckinghamshire | England: South | 71 | 501.4 | 33 | 2008 |
| Bookham Common (total), Surrey | England: South | 208 | 475.5 | 84 | < 2001 |
| Black Wood of Rannoch, Mid Perthshire | Scotland | 74 | 571.6 | 8 | < 1990 |
| Ebernoe Common, West Sussex | England: South | 141 | 507.1 | 53 | < 2011 |
| Bookham Common (post-1980), Surrey | England: South | 176 | 441.5 | 61 | 1980 - 2001 |
| Buxted Park, East Sussex | England: South | 134 | 394.0 | 43 | < 1999 |
| Highgate Wood, Middlesex | England: South | 107 | 404.7 | 36 | < 2002 |
| Bedford Purlieus Wood NNR, Huntingdonshire | England: Mid | 68 | 376.5 | 14 | 1970 - 1995 |
| Dinefwr Deer Park, Carmarthenshire | Wales | 156 | 362.8 | 57 | < 1999 |
| Old Cilgwyn, Cardiganshire | Wales | 64 | 259.4 | 13 | < 1998 |
| Lockhaugh Bank Wood, South Northumberland | England: North | 46 | 243.5 | 7 | < 1993 |
| Newborough Forest, Anglesey | Wales | 21 | 209.5 | 0 | < 2010 |
| Windsor Forest, Berkshire | England: South | 363 | 801.7 | 254 | < 1998 |
| Richmond Park (1980-2006), Surrey | England: South | 205 | 539.0 | 110 | 1980 - 2006 |
| Hatfield Forest, North Essex | England: South | 245 | 591.4 | 138 | 1986 - 2018 |
| Castle Drogo (NT), South Devon | England: South-West | 79 | 392.4 | 35 | 1996 - 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 |
| East Chatteris, Cambridgeshire | England: South | 63 | 319.0 | 16 | 2015 |
| Wye Valley Woods SAC, Monmouthshire | Wales | 132 | 456.1 | 49 | 1994 - 2018 |
| Little Doward Wood, West Gloucestershire | England: Mid | 80 | 408.8 | 36 | 2004 - 2021 |
| 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 |
| Bredon Hill, Worcestershire | England: Mid | 218 | 633.9 | 140 | 1970 - 2021 |
| Horner Woods NNR, South Somerset | England: South-West | 88 | 298.9 | 27 | 1998 - 2015 |
| Weald Country Park (total), South Essex | England: South | 128 | 503.1 | 63 | < 2010 |
| Wimpole Hall Estate (NT), Cambridgeshire | England: South | 203 | 525.6 | 90 | 1986 - 2023 |
| Wicken Fen (NT), Cambridgeshire | England: South | 152 | 451.3 | 59 | 1980 - 2023 |
Saproxylic Quality Index