| Sherwood Forest, Nottinghamshire | England: Mid | 164 | 493.9 | 96 | 1960 - 2006 |
| Calke Abbey NT, Derbyshire | England: Mid | 165 | 417.6 | 74 | 1998 - 2004 |
| Forest of Dean, West Gloucestershire | England: Mid | 89 | 428.1 | 30 | 1965 - 1998 |
| 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 |
| Bradgate Park (post 1980), Leicestershire (with Rutland) | England: Mid | 55 | 383.6 | 22 | 1981 - 1998 |
| Grovely Wood, South Wiltshire | England: South-West | 107 | 382.2 | 27 | 1980 - 2004 |
| Bradgate Park (total), Leicestershire (with Rutland) | England: Mid | 84 | 356.0 | 29 | < 1998 |
| Ashton Court, North Somerset | England: South-West | 79 | 283.5 | 23 | < 2002 |
| Croxton Park, Leicestershire (with Rutland) | England: Mid | 51 | 278.4 | 18 | < 1988 |
| Grimsthorpe Park, South Lincolnshire | England: Mid | 147 | 461.9 | 77 | < 2014 |
| Bushy Park & Home Park, Middlesex | England: South | 255 | 629.0 | 141 | 1996 - 2013 |
| Hylands Park (Total), South Essex | England: South | 74 | 254.1 | 13 | 1967 - 2003 |
| Lea & Pagets Wood, Herefordshire | England: Mid | 55 | 307.3 | 3 | 2003 |
| Central Lincs. Limewoods, North Lincolnshire | England: Mid | 123 | 351.2 | 25 | < 1998 |
| Longdon Marsh, Worcestershire | England: Mid | 57 | 578.9 | 39 | 2000 - 2002 |
| Lullingstone Park, West Kent | England: South | 105 | 464.8 | 42 | < 1977 |
| Monkfield Wood, Cambridgeshire | England: South | 27 | 244.4 | 3 | < 1998 |
| New Forest, South Hampshire | England: South | 324 | 782.7 | 200 | < 2000 |
| Norton Priory, West Sussex | England: South | 54 | 216.7 | 4 | 2003 |
| Oyster Wood, Surrey | England: South | 117 | 395.7 | 24 | < 1993 |
| Pipers Hill, Worcestershire | England: Mid | 43 | 441.9 | 20 | < 2003 |
| The Oaks, Kingston Lacy, Dorset | England: South-West | 72 | 262.5 | 12 | 2000 - 2001 |
| Sidmouth Wood (Richmond Park), Surrey | England: South | 56 | 328.6 | 17 | < 2006 |
| River Soar, Leicestershire (with Rutland) | England: Mid | 66 | 295.5 | 12 | < 1980 |
| Rotherfield Park, North Hampshire | England: South | 121 | 315.7 | 27 | 2002 |
| Silwood Park, Berkshire | England: South | 159 | 605.0 | 86 | 1998 - 1999 |
| Site A, Evesham, Worcestershire | England: Mid | 73 | 502.7 | 40 | < 1996 |
| Snelsmore Common, Berkshire | England: South | 71 | 216.9 | 9 | 2003 |
| Staverton Park, East Suffolk | England: South | 106 | 416.0 | 48 | < 1986 |
| Thorne Moors, South-west Yorkshire | England: North | 86 | 264.0 | 16 | < 1985 |
| Thursley Commons, Surrey | England: South | 128 | 371.1 | 34 | < 2002 |
| Cirencester Park, East Gloucestershire | England: Mid | 76 | 314.5 | 24 | < 1999 |
| Rug, Merionethshire | Wales | 47 | 240.4 | 8 | < 1994 |
| Richmond Park (total), Surrey | England: South | 253 | 644.3 | 157 | 1950 - 2006 |
| Moccas Park, Herefordshire | England: Mid | 239 | 576.6 | 138 | < 1998 |
| Croome Park, Worcestershire | England: Mid | 110 | 564.5 | 62 | < 1999 |
| Parham Park, West Sussex | England: South | 81 | 523.5 | 42 | 1983 - 2012 |
| Epping Forest, South Essex | England: South | 252 | 560.3 | 128 | < 1979 |
| Shrubland Estate, East Suffolk | England: South | 91 | 512.1 | 38 | 1975 - 2005 |
| Arundel Park, West Sussex | England: South | 130 | 475.4 | 53 | < 1999 |
| Bookham Common (total), Surrey | England: South | 208 | 475.5 | 84 | < 2001 |
| Esher Commons (total), Surrey | England: South | 234 | 498.3 | 84 | < 2002 |
| Box Hill, Surrey | England: South | 225 | 550.7 | 67 | < 1997 |
| Hatchlands Park, Surrey | England: South | 164 | 407.3 | 64 | < 2002 |
| Bookham Common (post-1980), Surrey | England: South | 176 | 441.5 | 61 | 1980 - 2001 |
| Stanford PTA, West Norfolk | England: South | 183 | 414.8 | 74 | 1980 - 2009 |
| Cambourne Woods, Cambridgeshire | England: South | 39 | 392.3 | 10 | < 1998 |
| Denham Marsh Wood, Buckinghamshire | England: South | 47 | 404.3 | 16 | 2008 |
| Buxted Park, East Sussex | England: South | 134 | 394.0 | 43 | < 1999 |
| Chiddingfold Woods, Surrey | England: South | 164 | 371.3 | 37 | < 2003 |
| Highgate Wood, Middlesex | England: South | 107 | 404.7 | 36 | < 2002 |
| Kedleston Park NT, Derbyshire | England: Mid | 143 | 372.7 | 58 | < 2014 |
| Drayton Copse, Oxfordshire | England: South | 76 | 339.5 | 19 | < 1999 |
| Dinefwr Deer Park, Carmarthenshire | Wales | 156 | 362.8 | 57 | < 1999 |
| Hutchin's Copse, Oxfordshire | England: South | 78 | 334.6 | 16 | < 1999 |
| Hardwick Park (NT), Derbyshire | England: Mid | 115 | 336.5 | 37 | 1984 - 2004 |
| Bramshott Chase, Surrey | England: South | 138 | 329.0 | 34 | 1998 - 2003 |
| Ash Ranges, Surrey | England: South | 121 | 331.4 | 25 | 1997 - 2003 |
| Kennet Floodplain, Berkshire | England: South | 124 | 353.2 | 20 | 2003 |
| Llanover Park, Monmouthshire | Wales | 118 | 330.5 | 37 | < 1996 |
| Cadzow & Hamilton High Parks, Lanarkshire | Scotland | 44 | 352.3 | 18 | < 2010 |
| Milton-Lockhart Estate, Lanarkshire | Scotland | 55 | 336.4 | 12 | < 2009 |
| Brilley Green Dingle, Herefordshire | England: Mid | 61 | 291.8 | 9 | < 2014 |
| Parc Pont-faen, Cardiganshire | Wales | 45 | 253.3 | 10 | < 2002 |
| Gregynog, Montgomeryshire | Wales | 69 | 233.3 | 10 | < 1996 |
| Glen Tanar, South Aberdeenshire | Scotland | 34 | 605.9 | 4 | < 1991 |
| Hafod Estate, Cardiganshire | Wales | 25 | 260.0 | 3 | < 1998 |
| Coed Mynachlog-fawr, Cardiganshire | Wales | 29 | 251.7 | 3 | < 1994 |
| Ashtead Common (Underground), Surrey | England: South | 28 | 675.0 | 18 | < 2014 |
| Cwm Merddog, Monmouthshire | Wales | 33 | 269.7 | 10 | 2002 - 2008 |
| Windsor Forest, Berkshire | England: South | 363 | 801.7 | 254 | < 1998 |
| Gibside, County Durham | England: North | 83 | 397.6 | 13 | < 1992 |
| Bothwell Castle, Lanarkshire | Scotland | 38 | 342.1 | 13 | < 2011 |
| Harewood Forest, North Hampshire | England: South | 64 | 290.6 | 20 | < 1975 |
| Esher Commons (post 1980), Surrey | England: South | 172 | 366.3 | 47 | 1980 - 2002 |
| Donington Park (total), Leicestershire (with Rutland) | England: Mid | 122 | 438.5 | 53 | 1971 - 2014 |
| Donington Park SSSI (2014), Leicestershire (with Rutland) | England: Mid | 40 | 385.0 | 15 | 2014 |
| Richmond Park (1980-2006), Surrey | England: South | 205 | 539.0 | 110 | 1980 - 2006 |
| Cwm Llyfnant, Cardiganshire | Wales | 44 | 288.6 | 4 | < 2015 |
| Carn Gafallt, Breconshire | Wales | 84 | 350.0 | 23 | < 2015 |
| Kemerton Estate, Worcestershire | England: Mid | 170 | 435.3 | 74 | 1992 - 2014 |
| Auchinleck Estate, Ayrshire | Scotland | 39 | 279.5 | 9 | 2013 - 2016 |
| Bothwell Castle (update), Ayrshire | Scotland | 35 | 320.0 | 13 | 1960 - 2016 |
| Plyde Loch (revised), Ayrshire | Scotland | 25 | 240.0 | 4 | 2012 - 2016 |
| Burley Wood, Leicestershire (with Rutland) | England: Mid | 72 | 269.4 | 12 | < 1988 |
| Burley-on-the-Hill Estate, Leicestershire (with Rutland) | England: Mid | 90 | 302.2 | 19 | 1988 - 2016 |
| Studley Royal, Mid-west Yorkshire | England: North | 100 | 328.0 | 33 | 1901 - 2016 |
| Croome Estate, Worcestershire | England: Mid | 175 | 616.6 | 109 | 1995 - 2016 |
| Shotover Hill, Oxfordshire | England: South | 155 | 434.8 | 71 | 1999 - 2017 |
| Dartington Hall Estate, South Devon | England: South-West | 89 | 351.7 | 14 | 2010 - 2017 |
| Hatfield Forest, North Essex | England: South | 245 | 591.4 | 138 | 1986 - 2018 |
| Haddon Hall, Derbyshire | England: Mid | 28 | 403.6 | 10 | 2018 |
| Thorneythwaite, Cumberland | England: North | 50 | 358.0 | 6 | 2017 |
| Felbrigg Hall Estate (NT), East Norfolk | England: South | 135 | 376.3 | 45 | 1988 - 2018 |
| Ashridge Estate (NT), Hertfordshire | England: South | 234 | 543.6 | 110 | 1986 - 2020 |
| Millichope Park, Shropshire | England: Mid | 103 | 394.2 | 52 | 2020 - 2021 |
| Auchinleck Estate, Ayrshire | Scotland | 41 | 278.0 | 9 | 2000 - 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 |
| Robinson Place Farm, Westmorland (with Furness) | England: North | 53 | 220.8 | 9 | 2021 - 2022 |
| Ickworth Park NT, West Suffolk | England: South | 176 | 506.8 | 74 | 1986 - 2022 |
| Ham Lands, Surrey | England: South | 67 | 409.0 | 16 | 2010 - 2023 |
| High Park, Blenheim Palace, Oxfordshire | England: South | 261 | 620.3 | 158 | 1950 - 2021 |
| Studley Park, Mid-west Yorkshire | England: North | 43 | 376.7 | 19 | 2017 - 2023 |
| Stowe (NT, School and Golf Course), Buckinghamshire | England: South | 142 | 526.8 | 69 | < 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 |
| Rutland Water Nature Reserve, Leicestershire (with Rutland) | England: Mid | 68 | 244.1 | 8 | 2021 - 2022 |
| 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 |
| Dinton Pastures Country Park, Berkshire | England: South | 143 | 488.1 | 52 | 1992 - 2023 |
| Turnworth Common, Dorset | England: South-West | 120 | 479.2 | 62 | 2018 - 2023 |
| Danbury Common (NT) & Danbury Park, South Essex | England: South | 120 | 431.7 | 40 | 1976 - 2019 |
Saproxylic Quality Index