| Calke Abbey NT, Derbyshire | England: Mid | 165 | 422.4 | 74 | 1998 - 2004 |
| Cobham & Ashenbank Woods, West Kent | England: South | 105 | 369.5 | 33 | < 1998 |
| Powis Castle Park (total), Montgomeryshire | Wales | 170 | 380.0 | 70 | 1994 - 2003 |
| Grovely Wood, South Wiltshire | England: South-West | 107 | 390.7 | 27 | 1980 - 2004 |
| Allt-yr-esgair, Breconshire | Wales | 57 | 335.1 | 15 | < 2000 |
| Ashton Court, North Somerset | England: South-West | 79 | 297.5 | 23 | < 2002 |
| Bedwyn Brail, South Wiltshire | England: South-West | 39 | 228.2 | 3 | 2000 - 2004 |
| Grimsthorpe Park, South Lincolnshire | England: Mid | 147 | 461.9 | 77 | < 2014 |
| Bushy Park & Home Park, Middlesex | England: South | 255 | 620.4 | 141 | 1996 - 2013 |
| Lea & Pagets Wood, Herefordshire | England: Mid | 55 | 334.5 | 3 | 2003 |
| Central Lincs. Limewoods, North Lincolnshire | England: Mid | 123 | 343.9 | 25 | < 1998 |
| Longleat, South Wiltshire | England: South-West | 46 | 295.7 | 11 | 1994 - 2004 |
| Lullingstone Park, West Kent | England: South | 105 | 473.3 | 42 | < 1977 |
| New Forest, South Hampshire | England: South | 324 | 771.6 | 200 | < 2000 |
| Park Farm & Priory Woods, Staffordshire | England: Mid | 49 | 228.6 | 6 | < 2002 |
| River Soar, Leicestershire (with Rutland) | England: Mid | 66 | 304.5 | 12 | < 1980 |
| Sandall Beat, South-west Yorkshire | England: North | 64 | 271.9 | 5 | < 2000 |
| Shortwood & Standish Wood (National Trust), Worcestershire | England: Mid | 46 | 289.1 | 12 | 1985 - 2002 |
| Snelsmore Common, Berkshire | England: South | 71 | 215.5 | 9 | 2003 |
| Staverton Park, East Suffolk | England: South | 106 | 412.3 | 48 | < 1986 |
| Dunham Massey Park (Greater), Cheshire | England: Mid | 84 | 307.1 | 27 | < 1992 |
| Cirencester Park, East Gloucestershire | England: Mid | 76 | 327.6 | 24 | < 1999 |
| Moccas Park, Herefordshire | England: Mid | 239 | 566.5 | 138 | < 1998 |
| Cowdray Park, West Sussex | England: South | 121 | 526.4 | 58 | 2011 |
| Epping Forest, South Essex | England: South | 252 | 544.4 | 128 | < 1979 |
| Shrubland Estate, East Suffolk | England: South | 91 | 498.9 | 38 | 1975 - 2005 |
| Arundel Park, West Sussex | England: South | 130 | 458.5 | 53 | < 1999 |
| Esher Commons (total), Surrey | England: South | 234 | 493.2 | 84 | < 2002 |
| Box Hill, Surrey | England: South | 225 | 552.0 | 67 | < 1997 |
| Dunham Park (total), Cheshire | England: Mid | 151 | 464.2 | 60 | < 1977 |
| Ebernoe Common, West Sussex | England: South | 141 | 497.9 | 53 | < 2011 |
| Hatchlands Park, Surrey | England: South | 164 | 401.2 | 64 | < 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 |
| Hainault Forest, South Essex | England: South | 94 | 409.6 | 41 | 1970 - 2007 |
| Buxted Park, East Sussex | England: South | 134 | 400.7 | 43 | < 1999 |
| Cobham Park, West Kent | England: South | 88 | 376.1 | 29 | < 1998 |
| Kedleston Park NT, Derbyshire | England: Mid | 143 | 378.3 | 58 | < 2014 |
| Drayton Copse, Oxfordshire | England: South | 76 | 347.4 | 19 | < 1999 |
| Bedford Purlieus Wood NNR, Huntingdonshire | England: Mid | 68 | 411.8 | 14 | 1970 - 1995 |
| Dinefwr Deer Park, Carmarthenshire | Wales | 156 | 385.3 | 57 | < 1999 |
| Hardwick Park (NT), Derbyshire | England: Mid | 115 | 350.4 | 37 | 1984 - 2004 |
| Bramshott Chase, Surrey | England: South | 138 | 337.0 | 34 | 1998 - 2003 |
| Chetwynd Park, Shropshire | England: Mid | 50 | 308.0 | 19 | < 1993 |
| Eridge Park, East Sussex | England: South | 80 | 310.0 | 17 | < 1999 |
| The Devenish, South Wiltshire | England: South-West | 74 | 324.3 | 15 | 1994 - 2004 |
| Cadzow & Hamilton High Parks, Lanarkshire | Scotland | 44 | 365.9 | 18 | < 2010 |
| Milton-Lockhart Estate, Lanarkshire | Scotland | 55 | 356.4 | 12 | < 2009 |
| Bentley Park Wood, Warwickshire | England: Mid | 62 | 277.4 | 12 | < 2000 |
| Erddig, Denbighshire | Wales | 67 | 297.0 | 14 | < 1999 |
| Priory Wood, Monmouthshire | Wales | 44 | 302.3 | 9 | < 2014 |
| Stackpole Estate, Pembrokeshire | Wales | 36 | 180.6 | 3 | < 2003 |
| Cwm Clydach NNR, Breconshire | Wales | 24 | 279.2 | 9 | 1990 - 2002 |
| Hafod Estate, Cardiganshire | Wales | 25 | 268.0 | 3 | < 1998 |
| Arundel Park (post 1987), West Sussex | England: South | 39 | 364.1 | 13 | 1988 - 1999 |
| Fenn's & Whixall Moss NNR, Shropshire | England: Mid | 30 | 276.7 | 5 | < 1994 |
| Windsor Forest, Berkshire | England: South | 363 | 765.8 | 254 | < 1998 |
| Forest of Bere, South Hampshire | England: South | 108 | 468.5 | 42 | < 1975 |
| Tavistock Wood, North Devon | England: South-West | 32 | 281.3 | 5 | < 1999 |
| Arlington Court, North Devon | England: South-West | 28 | 357.1 | 8 | < 1999 |
| Pilton Wood, North Devon | England: South-West | 43 | 279.1 | 8 | < 1999 |
| Eastnor Park, Herefordshire | England: Mid | 93 | 393.5 | 46 | < 2010 |
| Crowcombe Park, South Somerset | England: South-West | 51 | 276.5 | 11 | 1995 - 2010 |
| Trent Valley , Nottinghamshire | England: Mid | 101 | 332.7 | 26 | 1997 - 2015 |
| Cobham Woods NT, West Kent | England: South | 70 | 368.6 | 30 | 2014 |
| Kemerton Estate, Worcestershire | England: Mid | 170 | 437.1 | 74 | 1992 - 2014 |
| Burley Wood, Leicestershire (with Rutland) | England: Mid | 72 | 275.0 | 12 | < 1988 |
| Burley-on-the-Hill Estate, Leicestershire (with Rutland) | England: Mid | 90 | 303.3 | 19 | 1988 - 2016 |
| Perivale Wood, Middlesex | England: South | 53 | 475.5 | 17 | 2013 - 2016 |
| Studley Royal, Mid-west Yorkshire | England: North | 100 | 342.0 | 33 | 1901 - 2016 |
| Hanbury Park, Worcestershire | England: Mid | 58 | 501.7 | 26 | 1998 - 2016 |
| Croft Castle, Herefordshire | England: Mid | 121 | 404.1 | 52 | < 2012 |
| Gunby Park, North Lincolnshire | England: Mid | 18 | 261.1 | 2 | < 2017 |
| Haughmond Hill, Shropshire | England: Mid | 55 | 265.5 | 12 | 2009 - 2017 |
| Dartington Hall Estate, South Devon | England: South-West | 89 | 377.5 | 14 | 2010 - 2017 |
| Lanhydrock Estate (NT), East Cornwall | England: South-West | 65 | 327.7 | 23 | < 2008 |
| Hatfield Forest, North Essex | England: South | 245 | 568.6 | 138 | 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 |
| Lyme Park (NT), Cheshire | England: Mid | 56 | 230.4 | 5 | 1996 - 2019 |
| Ashridge Estate (NT), Hertfordshire | England: South | 234 | 555.6 | 110 | 1986 - 2020 |
| Dunster Deer Park, South Somerset | England: South-West | 61 | 304.9 | 23 | 1995 - 2011 |
| Nettlecombe Park, South Somerset | England: South-West | 129 | 355.0 | 57 | 1988 - 2019 |
| Millichope Park, Shropshire | England: Mid | 103 | 413.6 | 52 | 2020 - 2021 |
| Dunham Massey Park (2021), Cheshire | England: Mid | 89 | 377.5 | 45 | 2021 |
| Tatton Park (2021), Cheshire | England: Mid | 102 | 432.4 | 45 | 2021 |
| Tatton Park (2011-21), Cheshire | England: Mid | 122 | 427.0 | 53 | 2011 - 2021 |
| Birchall & Holwell Park Woods, Hertfordshire | England: South | 65 | 286.2 | 8 | 2014 - 2015 |
| Petworth Deer Park (NT), West Sussex | England: South | 195 | 500.5 | 85 | 1988 - 2020 |
| Chirk Castle Park (NT), Denbighshire | Wales | 194 | 404.6 | 79 | 1993 - 2018 |
| Styal Woods and Country Park, Cheshire | England: Mid | 55 | 312.7 | 20 | 1985 - 2021 |
| Wye Valley Woods SAC, Monmouthshire | Wales | 132 | 448.5 | 49 | 1994 - 2018 |
| Little Doward Wood, West Gloucestershire | England: Mid | 80 | 402.5 | 36 | 2004 - 2021 |
| Priory Wood, Staffordshire | England: Mid | 48 | 218.8 | 6 | 1980 - 2023 |
| Ickworth Park NT, West Suffolk | England: South | 176 | 497.7 | 74 | 1986 - 2022 |
| Panshanger Park (1990-2022), Hertfordshire | England: South | 156 | 530.8 | 92 | 1990 - 2022 |
| Clumber Park (NT), Nottinghamshire | England: Mid | 177 | 422.0 | 75 | 1990 - 2023 |
| Cwrt-yr-ala, Glamorganshire | Wales | 43 | 444.2 | 7 | < 1997 |
| High Park, Blenheim Palace, Oxfordshire | England: South | 261 | 600.4 | 158 | 1950 - 2021 |
| Clumber Park 2023, Nottinghamshire | England: Mid | 124 | 462.1 | 66 | 2023 |
| Sydenham Hill & Dulwich Woods, Surrey | England: South | 92 | 387.0 | 30 | 1997 - 2023 |
| Stowe (NT, School and Golf Course), Buckinghamshire | England: South | 142 | 511.3 | 69 | < 2023 |
| Ashtead Common NNR, Surrey | England: South | 282 | 633.7 | 161 | < 2023 |
| Burnham Beeches (inc. Dorneywood NT and Huntswood Farm), Buckinghamshire | England: South | 284 | 624.6 | 175 | < 2022 |
| Bredon Hill, Worcestershire | England: Mid | 218 | 613.8 | 140 | 1970 - 2021 |
| Horner Woods NNR, South Somerset | England: South-West | 88 | 306.8 | 27 | 1998 - 2015 |
| Ayr Gorge, Ayrshire | Scotland | 57 | 319.3 | 12 | 1960 - 2020 |
| Wimpole Hall Estate (NT), Cambridgeshire | England: South | 203 | 498.0 | 90 | 1986 - 2023 |
| Wicken Fen (NT), Cambridgeshire | England: South | 152 | 447.4 | 59 | 1980 - 2023 |
| Dinton Pastures Country Park, Berkshire | England: South | 145 | 503.4 | 52 | 1992 - 2024 |
| Burnham Beeches (s.s.), Buckinghamshire | England: South | 263 | 592.0 | 154 | < 2022 |
Saproxylic Quality Index