| Sherwood Forest, Nottinghamshire | England: Mid | 164 | 493.9 | 96 | 1960 - 2006 |
| Calke Abbey NT, Derbyshire | England: Mid | 165 | 417.6 | 74 | 1998 - 2004 |
| Glen Affric, East Inverness-shire | Scotland | 66 | 450.0 | 11 | < 2014 |
| Swanton Novers, West Norfolk | England: South | 95 | 335.8 | 32 | 1981 - 2010 |
| Powis Castle Park (total), Montgomeryshire | Wales | 170 | 372.9 | 70 | 1994 - 2003 |
| Bushy Park & Home Park, Middlesex | England: South | 255 | 629.0 | 141 | 1996 - 2013 |
| Central Lincs. Limewoods, North Lincolnshire | England: Mid | 123 | 351.2 | 25 | < 1998 |
| New Forest, South Hampshire | England: South | 324 | 782.7 | 200 | < 2000 |
| Nupend Wood, Herefordshire | England: Mid | 46 | 397.8 | 18 | 2002 - 2003 |
| Sidmouth Wood (Richmond Park), Surrey | England: South | 56 | 328.6 | 17 | < 2006 |
| Silwood Park, Berkshire | England: South | 159 | 605.0 | 86 | 1998 - 1999 |
| Langley Park, Buckinghamshire | England: South | 152 | 686.2 | 110 | 1979 - 2008 |
| Richmond Park (total), Surrey | England: South | 253 | 644.3 | 157 | 1950 - 2006 |
| Croome Park, Worcestershire | England: Mid | 110 | 564.5 | 62 | < 1999 |
| Cowdray Park, West Sussex | England: South | 121 | 543.0 | 58 | 2011 |
| 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 |
| Icklingham Plains Area, West Suffolk | England: South | 75 | 469.3 | 31 | 1976 - 1997 |
| Esher Commons (total), Surrey | England: South | 234 | 498.3 | 84 | < 2002 |
| Bookham Common (post-1980), Surrey | England: South | 176 | 441.5 | 61 | 1980 - 2001 |
| Mersham Hatch Estate, East Kent | England: South | 115 | 421.7 | 39 | < 1998 |
| Stanford PTA, West Norfolk | England: South | 183 | 414.8 | 74 | 1980 - 2009 |
| Denham Marsh Wood, Buckinghamshire | England: South | 47 | 404.3 | 16 | 2008 |
| Hainault Forest, South Essex | England: South | 94 | 403.2 | 41 | 1970 - 2007 |
| Kedleston Park NT, Derbyshire | England: Mid | 143 | 372.7 | 58 | < 2014 |
| Hardwick Park (NT), Derbyshire | England: Mid | 115 | 336.5 | 37 | 1984 - 2004 |
| Llanover Park, Monmouthshire | Wales | 118 | 330.5 | 37 | < 1996 |
| Cwm Clydach NNR, Breconshire | Wales | 24 | 279.2 | 9 | 1990 - 2002 |
| Windsor Forest, Berkshire | England: South | 363 | 801.7 | 254 | < 1998 |
| Bothwell Castle, Lanarkshire | Scotland | 38 | 342.1 | 13 | < 2011 |
| Dulverton Woods, South Somerset | England: South-West | 51 | 286.3 | 12 | < 2002 |
| Eastnor Park, Herefordshire | England: Mid | 93 | 412.9 | 46 | < 2010 |
| Richmond Park (1980-2006), Surrey | England: South | 205 | 539.0 | 110 | 1980 - 2006 |
| Cobham Woods NT, West Kent | England: South | 70 | 380.0 | 30 | 2014 |
| Bothwell Castle (update), Ayrshire | Scotland | 35 | 320.0 | 13 | 1960 - 2016 |
| Hanbury Park, Worcestershire | England: Mid | 38 | 436.8 | 13 | 2008 - 2016 |
| Hanbury Park, Worcestershire | England: Mid | 58 | 501.7 | 26 | 1998 - 2016 |
| Croft Castle, Herefordshire | England: Mid | 121 | 399.2 | 52 | < 2012 |
| Croome Estate, Worcestershire | England: Mid | 175 | 616.6 | 109 | 1995 - 2016 |
| Shotover Hill, Oxfordshire | England: South | 155 | 434.8 | 71 | 1999 - 2017 |
| Lanhydrock Estate (NT), East Cornwall | England: South-West | 65 | 315.4 | 23 | < 2008 |
| 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 |
| Sherrardspark Wood SSSI, Hertfordshire | England: South | 89 | 368.5 | 36 | 2008 - 2020 |
| Blickling Park (NT), East Norfolk | England: South | 117 | 378.6 | 43 | 1982 - 2019 |
| Ashridge Estate (NT), Hertfordshire | England: South | 234 | 543.6 | 110 | 1986 - 2020 |
| Nettlecombe Park, South Somerset | England: South-West | 129 | 334.9 | 57 | 1988 - 2019 |
| Millichope Park, Shropshire | England: Mid | 103 | 394.2 | 52 | 2020 - 2021 |
| Tugford Wood Pasture, Shropshire | England: Mid | 65 | 373.8 | 26 | 2021 |
| Dunham Massey Park (2021), Cheshire | England: Mid | 89 | 360.7 | 45 | 2021 |
| Tatton Park (2021), Cheshire | England: Mid | 102 | 424.5 | 45 | 2021 |
| Tatton Park (2011-21), Cheshire | England: Mid | 122 | 425.4 | 53 | 2011 - 2021 |
| Petworth Deer Park (NT), West Sussex | England: South | 195 | 515.9 | 85 | 1988 - 2020 |
| Chirk Castle Park (NT), Denbighshire | Wales | 194 | 396.4 | 79 | 1993 - 2018 |
| Styal Woods and Country Park, Cheshire | England: Mid | 55 | 292.7 | 20 | 1985 - 2021 |
| Little Doward Wood, West Gloucestershire | England: Mid | 80 | 408.8 | 36 | 2004 - 2021 |
| Combermere Park, Cheshire | England: Mid | 83 | 383.1 | 42 | 2022 |
| Ickworth Park NT, West Suffolk | England: South | 176 | 506.8 | 74 | 1986 - 2022 |
| Sheringham Park (NT), East Norfolk | England: South | 88 | 309.1 | 25 | 1987 - 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 |
| Clumber Park 2023, Nottinghamshire | England: Mid | 124 | 462.1 | 66 | 2023 |
| Oxburgh Hall, West Norfolk | England: South | 96 | 459.4 | 36 | 2013 - 2022 |
| Stowe (NT, School and Golf Course), Buckinghamshire | England: South | 142 | 526.8 | 69 | < 2023 |
| Thorndon Park SSSI, South Essex | England: South | 66 | 580.3 | 47 | 2023 |
| Ashtead Common NNR, Surrey | England: South | 282 | 635.1 | 161 | < 2023 |
| 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 |
| Barnes Common, Surrey | England: South | 81 | 574.1 | 40 | 2020 - 2024 |
| Oxburgh Hall (NT), West Norfolk | England: South | 63 | 436.5 | 20 | 2006 - 2018 |
| 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 |
| Turnworth Common, Dorset | England: South-West | 120 | 479.2 | 62 | 2018 - 2023 |
| Dinton Pastures Country Park, Berkshire | England: South | 145 | 488.3 | 52 | 1992 - 2024 |
Saproxylic Quality Index