| Sherwood Forest, Nottinghamshire | England: Mid | 164 | 500.0 | 96 | 1960 - 2006 |
| Calke Abbey NT, Derbyshire | England: Mid | 165 | 427.3 | 81 | 1998 - 2004 |
| Duncombe Park NNR, North-east Yorkshire | England: North | 93 | 409.7 | 42 | < 2000 |
| Powis Castle Park (total), Montgomeryshire | Wales | 170 | 380.0 | 70 | 1994 - 2003 |
| Powis Castle Park (pre-1996), Montgomeryshire | Wales | 39 | 392.3 | 21 | < 1996 |
| Bradgate Park (total), Leicestershire (with Rutland) | England: Mid | 84 | 356.0 | 29 | < 1998 |
| Ashton Court, North Somerset | England: South-West | 79 | 297.5 | 23 | < 2002 |
| Grimsthorpe Park, South Lincolnshire | England: Mid | 147 | 467.3 | 84 | < 2014 |
| Bushy Park & Home Park, Middlesex | England: South | 255 | 623.5 | 148 | 1996 - 2013 |
| Hylands Park (Total), South Essex | England: South | 74 | 258.1 | 13 | 1967 - 2003 |
| Longdon Marsh, Worcestershire | England: Mid | 57 | 570.2 | 46 | 2000 - 2002 |
| Longleat, South Wiltshire | England: South-West | 46 | 295.7 | 11 | 1994 - 2004 |
| Hylands Park (2000-03), South Essex | England: South | 61 | 275.4 | 13 | 2000 - 2003 |
| Lullingstone Park, West Kent | England: South | 105 | 473.3 | 42 | < 1977 |
| New Forest, South Hampshire | England: South | 324 | 774.1 | 207 | < 2000 |
| Oakwood Pastures, Staffordshire | England: Mid | 69 | 310.1 | 19 | < 2002 |
| River Soar, Leicestershire (with Rutland) | England: Mid | 66 | 304.5 | 12 | < 1980 |
| Rotherfield Park, North Hampshire | England: South | 121 | 327.3 | 27 | 2002 |
| Scadbury Park, West Kent | England: South | 71 | 321.1 | 17 | < 1998 |
| Staverton Park, East Suffolk | England: South | 106 | 419.8 | 55 | < 1986 |
| River Stour Floodplain, Dorset | England: South-West | 49 | 257.1 | 7 | 2002 |
| Thursley Commons, Surrey | England: South | 128 | 371.9 | 34 | < 2002 |
| Langley Park, Buckinghamshire | England: South | 152 | 654.6 | 117 | 1979 - 2008 |
| Richmond Park (total), Surrey | England: South | 253 | 631.6 | 164 | 1950 - 2006 |
| Moccas Park, Herefordshire | England: Mid | 239 | 569.9 | 145 | < 1998 |
| Croome Park, Worcestershire | England: Mid | 110 | 560.0 | 62 | < 1999 |
| Parham Park, West Sussex | England: South | 81 | 519.8 | 49 | 1983 - 2012 |
| Cowdray Park, West Sussex | England: South | 121 | 533.1 | 65 | 2011 |
| Epping Forest, South Essex | England: South | 252 | 544.4 | 128 | < 1979 |
| Hampton Court Park, Middlesex | England: South | 87 | 498.9 | 48 | 2011 - 2013 |
| Bookham Common (total), Surrey | England: South | 208 | 464.9 | 84 | < 2001 |
| Icklingham Plains Area, West Suffolk | England: South | 75 | 448.0 | 38 | 1976 - 1997 |
| Esher Commons (total), Surrey | England: South | 234 | 496.6 | 91 | < 2002 |
| Dunham Park (total), Cheshire | England: Mid | 151 | 464.2 | 60 | < 1977 |
| Hatchlands Park, Surrey | England: South | 164 | 406.1 | 71 | < 2002 |
| Mersham Hatch Estate, East Kent | England: South | 115 | 415.7 | 39 | < 1998 |
| Stanford PTA, West Norfolk | England: South | 183 | 416.9 | 74 | 1980 - 2009 |
| Buxted Park, East Sussex | England: South | 134 | 400.7 | 43 | < 1999 |
| Chiddingfold Woods, Surrey | England: South | 164 | 371.3 | 37 | < 2003 |
| Kedleston Park NT, Derbyshire | England: Mid | 143 | 383.9 | 65 | < 2014 |
| Hardwick Park (NT), Derbyshire | England: Mid | 115 | 350.4 | 37 | 1984 - 2004 |
| Ash Ranges, Surrey | England: South | 121 | 330.6 | 25 | 1997 - 2003 |
| Clytha Park, Monmouthshire | Wales | 48 | 308.3 | 16 | 1997 - 2002 |
| Llanover Park, Monmouthshire | Wales | 118 | 342.4 | 37 | < 1996 |
| Blean Woods Complex, East Kent | England: South | 50 | 294.0 | 14 | < 1999 |
| Cadzow & Hamilton High Parks, Lanarkshire | Scotland | 44 | 365.9 | 18 | < 2010 |
| Erddig, Denbighshire | Wales | 67 | 297.0 | 14 | < 1999 |
| Stansted Woodlands & Veteran Trees, North Essex | England: South | 43 | 295.3 | 6 | < 2014 |
| Piercefield Park, Monmouthshire | Wales | 43 | 288.4 | 12 | < 1999 |
| Brocton Coppice, Staffordshire | England: Mid | 88 | 317.0 | 35 | < 2000 |
| Llanerchydol Hall, Montgomeryshire | Wales | 17 | 205.9 | 2 | 1994 |
| Penrice Castle, Glamorganshire | Wales | 19 | 236.8 | 3 | 1994 |
| Coed Cae-bach, Glamorganshire | Wales | 18 | 288.9 | 6 | < 1994 |
| Hayling Way, River Cam, Cambridgeshire | England: South | 36 | 408.3 | 12 | < 1997 |
| Wyelands, Monmouthshire | Wales | 28 | 378.6 | 15 | 1994 - 1999 |
| Glasbury, River Wye, Radnorshire | Wales | 25 | 336.0 | 8 | < 1999 |
| Windsor Forest, Berkshire | England: South | 363 | 768.0 | 261 | < 1998 |
| Denny Wood, South Hampshire | England: South | 27 | 340.7 | 9 | 2002 |
| Esher Commons (post 1980), Surrey | England: South | 172 | 370.9 | 54 | 1980 - 2002 |
| Donington Park (total), Leicestershire (with Rutland) | England: Mid | 122 | 441.8 | 53 | 1971 - 2014 |
| Donington Park SSSI (2014), Leicestershire (with Rutland) | England: Mid | 40 | 377.5 | 15 | 2014 |
| Richmond Park (1980-2006), Surrey | England: South | 205 | 539.0 | 117 | 1980 - 2006 |
| Trent Valley , Nottinghamshire | England: Mid | 101 | 332.7 | 26 | 1997 - 2015 |
| Cobham Woods NT, West Kent | England: South | 70 | 380.0 | 37 | 2014 |
| Brockworth Great Park, East Gloucestershire | England: Mid | 36 | 461.1 | 22 | 2000 |
| Burley-on-the-Hill Estate, Leicestershire (with Rutland) | England: Mid | 90 | 303.3 | 19 | 1988 - 2016 |
| Studley Royal, Mid-west Yorkshire | England: North | 100 | 342.0 | 33 | 1901 - 2016 |
| Hanbury Park, Worcestershire | England: Mid | 38 | 436.8 | 13 | 2008 - 2016 |
| Hanbury Park, Worcestershire | England: Mid | 58 | 501.7 | 26 | 1998 - 2016 |
| Berrington Hall, Herefordshire | England: Mid | 49 | 391.8 | 13 | 1984 - 2011 |
| Croft Castle, Herefordshire | England: Mid | 121 | 410.7 | 59 | < 2012 |
| Croome Estate, Worcestershire | England: Mid | 175 | 601.7 | 116 | 1995 - 2016 |
| Shotover Hill, Oxfordshire | England: South | 155 | 441.3 | 71 | 1999 - 2017 |
| Brockhampton Estate (NT), Herefordshire | England: Mid | 62 | 488.7 | 29 | 1984 - 2016 |
| Haughmond Hill, Shropshire | England: Mid | 55 | 265.5 | 12 | 2009 - 2017 |
| Lanhydrock Estate (NT), East Cornwall | England: South-West | 65 | 327.7 | 23 | < 2008 |
| Hatfield Forest, North Essex | England: South | 245 | 571.8 | 145 | 1986 - 2018 |
| Beningbrough Parkland, North-east Yorkshire | England: North | 68 | 311.8 | 15 | 1987 - 2019 |
| Felbrigg Hall Estate (NT), East Norfolk | England: South | 135 | 382.2 | 45 | 1988 - 2018 |
| Attingham Park NT, Shropshire | England: Mid | 102 | 312.7 | 37 | 1985 - 2013 |
| Sherrardspark Wood SSSI, Hertfordshire | England: South | 89 | 371.9 | 36 | 2008 - 2020 |
| Blickling Park (NT), East Norfolk | England: South | 117 | 376.9 | 43 | 1982 - 2019 |
| Flatford Mill and Dedham Vale (NT), East Suffolk | England: South | 74 | 437.8 | 19 | 1995 - 2020 |
| Ashridge Estate (NT), Hertfordshire | England: South | 234 | 555.6 | 110 | 1986 - 2020 |
| Nettlecombe Park, South Somerset | England: South-West | 129 | 355.0 | 57 | 1988 - 2019 |
| Millichope Park, Shropshire | England: Mid | 103 | 413.6 | 52 | 2020 - 2021 |
| East Chatteris, Cambridgeshire | England: South | 63 | 314.3 | 16 | 2015 |
| Tatton Park (2021), Cheshire | England: Mid | 102 | 432.4 | 45 | 2021 |
| Tatton Park (2011-21), Cheshire | England: Mid | 122 | 427.0 | 53 | 2011 - 2021 |
| Petworth Deer Park (NT), West Sussex | England: South | 195 | 504.6 | 92 | 1988 - 2020 |
| Chirk Castle Park (NT), Denbighshire | Wales | 194 | 404.6 | 79 | 1993 - 2018 |
| Wye Valley Woods SAC, Monmouthshire | Wales | 132 | 448.5 | 49 | 1994 - 2018 |
| Combermere Park, Cheshire | England: Mid | 83 | 406.0 | 42 | 2022 |
| Ickworth Park NT, West Suffolk | England: South | 176 | 502.3 | 81 | 1986 - 2022 |
| Panshanger Park (1990-2022), Hertfordshire | England: South | 156 | 535.9 | 99 | 1990 - 2022 |
| Clumber Park (NT), Nottinghamshire | England: Mid | 177 | 422.0 | 75 | 1990 - 2023 |
| High Park, Blenheim Palace, Oxfordshire | England: South | 261 | 603.4 | 165 | 1950 - 2021 |
| Clumber Park 2023, Nottinghamshire | England: Mid | 124 | 462.1 | 66 | 2023 |
| Haywood Oaks Farm , Nottinghamshire | England: Mid | 39 | 417.9 | 26 | 2023 |
| Oxburgh Hall, West Norfolk | England: South | 96 | 456.3 | 43 | 2013 - 2022 |
| Stowe (NT, School and Golf Course), Buckinghamshire | England: South | 142 | 516.9 | 76 | < 2023 |
| Ashtead Common NNR, Surrey | England: South | 282 | 636.5 | 168 | < 2023 |
| Burnham Beeches, Buckinghamshire | England: South | 263 | 595.1 | 161 | < 2022 |
| Burnham Beeches (inc. Dorneywood NT and Huntswood Farm), Buckinghamshire | England: South | 284 | 627.5 | 182 | < 2022 |
| Bredon Hill, Worcestershire | England: Mid | 218 | 617.4 | 147 | 1970 - 2021 |
| Oxburgh Hall (NT), West Norfolk | England: South | 63 | 422.2 | 27 | 2006 - 2018 |
| Weald Country Park (total), South Essex | England: South | 128 | 501.6 | 70 | < 2010 |
| Wimpole Hall Estate (NT), Cambridgeshire | England: South | 203 | 502.0 | 97 | 1986 - 2023 |
| Wicken Fen (NT), Cambridgeshire | England: South | 152 | 447.4 | 59 | 1980 - 2023 |
| Danbury Common (NT) & Danbury Park, South Essex | England: South | 120 | 417.5 | 40 | 1976 - 2019 |
| Dinton Pastures Country Park, Berkshire | England: South | 145 | 503.4 | 52 | 1992 - 2024 |
Saproxylic Quality Index