| Buddon Wood (total), Leicestershire (with Rutland) | England: Mid | 124 | 397.6 | 36 | < 1988 |
| Glen Affric, East Inverness-shire | Scotland | 66 | 478.8 | 11 | < 2014 |
| Forest of Dean, West Gloucestershire | England: Mid | 89 | 410.1 | 30 | 1965 - 1998 |
| Duncombe Park NNR, North-east Yorkshire | England: North | 93 | 409.7 | 42 | < 2000 |
| Swanton Novers, West Norfolk | England: South | 95 | 337.9 | 32 | 1981 - 2010 |
| Cobham & Ashenbank Woods, West Kent | England: South | 105 | 369.5 | 33 | < 1998 |
| Powis Castle Park (total), Montgomeryshire | Wales | 170 | 380.0 | 70 | 1994 - 2003 |
| Great Ridge, South Wiltshire | England: South-West | 46 | 423.9 | 12 | 1980 - 2004 |
| Powis Castle Park (pre-1996), Montgomeryshire | Wales | 39 | 392.3 | 21 | < 1996 |
| Blackmoor Copse, South Wiltshire | England: South-West | 59 | 325.4 | 15 | 1994 - 2005 |
| Bradgate Park (total), Leicestershire (with Rutland) | England: Mid | 84 | 356.0 | 29 | < 1998 |
| Allt-yr-esgair, Breconshire | Wales | 57 | 335.1 | 15 | < 2000 |
| Ashton Court, North Somerset | England: South-West | 79 | 297.5 | 23 | < 2002 |
| Ashenbank Wood, West Kent | England: South | 57 | 310.5 | 12 | < 2014 |
| Bedwyn Brail, South Wiltshire | England: South-West | 39 | 228.2 | 3 | 2000 - 2004 |
| Coed Nant Llolwyn, Cardiganshire | Wales | 46 | 237.0 | 2 | < 1998 |
| Langley Wood, South Wiltshire | England: South-West | 67 | 403.0 | 23 | 1980 - 2005 |
| Bowcastle Farm Orchards, Worcestershire | England: Mid | 50 | 336.0 | 14 | < 2005 |
| Grimsthorpe Park, South Lincolnshire | England: Mid | 147 | 461.9 | 77 | < 2014 |
| Bushy Park & Home Park, Middlesex | England: South | 255 | 620.4 | 141 | 1996 - 2013 |
| Hylands Park (Total), South Essex | England: South | 74 | 258.1 | 13 | 1967 - 2003 |
| Central Lincs. Limewoods, North Lincolnshire | England: Mid | 123 | 343.9 | 25 | < 1998 |
| 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 |
| Melton Wood, South-west Yorkshire | England: North | 49 | 173.5 | 2 | < 2000 |
| Mottisfont Abbey, South Hampshire | England: South | 36 | 397.2 | 18 | < 1998 |
| Monks Wood NNR, Huntingdonshire | England: Mid | 157 | 415.9 | 48 | < 1973 |
| New Forest, South Hampshire | England: South | 324 | 771.6 | 200 | < 2000 |
| Norton Priory, West Sussex | England: South | 54 | 222.2 | 4 | 2003 |
| Rotherfield Park, North Hampshire | England: South | 121 | 327.3 | 27 | 2002 |
| Sandall Beat, South-west Yorkshire | England: North | 64 | 271.9 | 5 | < 2000 |
| Savernake Forest, South Wiltshire | England: South-West | 111 | 436.9 | 50 | < 2004 |
| Scadbury Park, West Kent | England: South | 71 | 321.1 | 17 | < 1998 |
| Shortwood & Standish Wood (National Trust), Worcestershire | England: Mid | 46 | 289.1 | 12 | 1985 - 2002 |
| Short Wood, Northamptonshire | England: Mid | 93 | 295.7 | 14 | < 1999 |
| Snelsmore Common, Berkshire | England: South | 71 | 215.5 | 9 | 2003 |
| Thorne Moors, South-west Yorkshire | England: North | 86 | 269.8 | 16 | < 1985 |
| Thursley Commons, Surrey | England: South | 128 | 371.9 | 34 | < 2002 |
| Ulverscroft, Leicestershire (with Rutland) | England: Mid | 47 | 206.4 | 10 | < 1998 |
| Virginia Water Woods, Berkshire | England: South | 73 | 464.4 | 33 | 2003 |
| Walcot Park, Shropshire | England: Mid | 39 | 310.3 | 11 | < 1991 |
| Woolmer Forest, North Hampshire | England: South | 97 | 291.8 | 16 | 1950 - 2003 |
| Cirencester Park, East Gloucestershire | England: Mid | 76 | 327.6 | 24 | < 1999 |
| Rug, Merionethshire | Wales | 47 | 240.4 | 8 | < 1994 |
| Moccas Park, Herefordshire | England: Mid | 239 | 566.5 | 138 | < 1998 |
| Epping Forest, South Essex | England: South | 252 | 544.4 | 128 | < 1979 |
| Abernethy Estate, East Inverness-shire | Scotland | 142 | 678.2 | 18 | < 1994 |
| Hampton Court Park, Middlesex | England: South | 87 | 489.7 | 41 | 2011 - 2013 |
| Shrubland Estate, East Suffolk | England: South | 91 | 498.9 | 38 | 1975 - 2005 |
| Arundel Park, West Sussex | England: South | 130 | 458.5 | 53 | < 1999 |
| Bookham Common (total), Surrey | England: South | 208 | 464.9 | 84 | < 2001 |
| Icklingham Plains Area, West Suffolk | England: South | 75 | 437.3 | 31 | 1976 - 1997 |
| Esher Commons (total), Surrey | England: South | 234 | 493.2 | 84 | < 2002 |
| Dunham Park (total), Cheshire | England: Mid | 151 | 464.2 | 60 | < 1977 |
| Black Wood of Rannoch, Mid Perthshire | Scotland | 74 | 563.5 | 8 | < 1990 |
| Ebernoe Common, West Sussex | England: South | 141 | 497.9 | 53 | < 2011 |
| Hatchlands Park, Surrey | England: South | 164 | 401.2 | 64 | < 2002 |
| Bookham Common (post-1980), Surrey | England: South | 176 | 440.9 | 61 | 1980 - 2001 |
| Mersham Hatch Estate, East Kent | England: South | 115 | 415.7 | 39 | < 1998 |
| The Mens, West Sussex | England: South | 139 | 463.3 | 56 | < 2010 |
| Hainault Forest, South Essex | England: South | 94 | 409.6 | 41 | 1970 - 2007 |
| Chiddingfold Woods, Surrey | England: South | 164 | 371.3 | 37 | < 2003 |
| Cobham Park, West Kent | England: South | 88 | 376.1 | 29 | < 1998 |
| Bedford Purlieus Wood NNR, Huntingdonshire | England: Mid | 68 | 411.8 | 14 | 1970 - 1995 |
| Dinefwr Deer Park, Carmarthenshire | Wales | 156 | 385.3 | 57 | < 1999 |
| Dingestow Court, Monmouthshire | Wales | 52 | 284.6 | 5 | 2007 - 2014 |
| Hardwick Park (NT), Derbyshire | England: Mid | 115 | 350.4 | 37 | 1984 - 2004 |
| Bramshott Chase, Surrey | England: South | 138 | 337.0 | 34 | 1998 - 2003 |
| Ash Ranges, Surrey | England: South | 121 | 330.6 | 25 | 1997 - 2003 |
| Kennet Floodplain, Berkshire | England: South | 124 | 352.4 | 20 | 2003 |
| Clytha Park, Monmouthshire | Wales | 48 | 308.3 | 16 | 1997 - 2002 |
| Llanover Park, Monmouthshire | Wales | 118 | 342.4 | 37 | < 1996 |
| Eridge Park, East Sussex | England: South | 80 | 310.0 | 17 | < 1999 |
| The Devenish, South Wiltshire | England: South-West | 74 | 324.3 | 15 | 1994 - 2004 |
| Blean Woods Complex, East Kent | England: South | 50 | 294.0 | 14 | < 1999 |
| Cadzow & Hamilton High Parks, Lanarkshire | Scotland | 44 | 365.9 | 18 | < 2010 |
| Milton-Lockhart Estate, Lanarkshire | Scotland | 55 | 356.4 | 12 | < 2009 |
| Priory Wood, Monmouthshire | Wales | 44 | 302.3 | 9 | < 2014 |
| Piercefield Park, Monmouthshire | Wales | 43 | 288.4 | 12 | < 1999 |
| Brocton Coppice, Staffordshire | England: Mid | 88 | 317.0 | 35 | < 2000 |
| Brilley Green Dingle, Herefordshire | England: Mid | 61 | 283.6 | 9 | < 2014 |
| Coed Gwaenydd Bach, Glamorganshire | Wales | 42 | 269.0 | 12 | < 1993 |
| Old Cilgwyn, Cardiganshire | Wales | 64 | 265.6 | 13 | < 1998 |
| Parc Pont-faen, Cardiganshire | Wales | 45 | 264.4 | 10 | < 2002 |
| Parc Nanteos, Cardiganshire | Wales | 45 | 244.4 | 7 | < 1999 |
| Gregynog, Montgomeryshire | Wales | 69 | 249.3 | 10 | < 1996 |
| Lockhaugh Bank Wood, South Northumberland | England: North | 46 | 245.7 | 7 | < 1993 |
| Stackpole Estate, Pembrokeshire | Wales | 36 | 180.6 | 3 | < 2003 |
| Plas Talgarth, Merionethshire | Wales | 35 | 271.4 | 5 | < 1969 |
| Coed Rheidol NNR, Cardiganshire | Wales | 13 | 161.5 | 0 | 1987 - 1992 |
| Penrice Castle, Glamorganshire | Wales | 19 | 236.8 | 3 | 1994 |
| Coed Allt Craig Arth, Cardiganshire | Wales | 22 | 263.6 | 1 | < 1992 |
| Coedydd Maentwrog, Merionethshire | Wales | 24 | 304.2 | 6 | < 1969 |
| Coedydd Afon Gwynant, Merionethshire | Wales | 26 | 253.8 | 7 | 1998 |
| Graig Wood, Monmouthshire | Wales | 12 | 266.7 | 2 | 2013 |
| Llanerchaeron Hall, Cardiganshire | Wales | 22 | 263.6 | 4 | 1991 - 2002 |
| Plas Gogerddan/Coed allt-ddel, Cardiganshire | Wales | 21 | 147.6 | 0 | < 1998 |
| Coedmore NNR, Cardiganshire | Wales | 28 | 242.9 | 6 | < 1998 |
| Gwydyr Forest, Caernarvonshire | Wales | 17 | 247.1 | 1 | < 1998 |
| Maesllwch Castle, Radnorshire | Wales | 22 | 236.4 | 1 | 1994 - 2014 |
| Bachawy, Radnorshire | Wales | 24 | 391.7 | 7 | < 1998 |
| Nicholaston Woods, Glamorganshire | Wales | 21 | 323.8 | 8 | < 1993 |
| Glasbury, River Wye, Radnorshire | Wales | 25 | 336.0 | 8 | < 1999 |
| Plyde Loch, Ayrshire | Scotland | 17 | 252.9 | 4 | 2012 - 2014 |
| Windsor Forest, Berkshire | England: South | 363 | 765.8 | 254 | < 1998 |
| Forest of Bere, South Hampshire | England: South | 108 | 468.5 | 42 | < 1975 |
| Pamber Forest & Silchester Common, North Hampshire | England: South | 53 | 449.1 | 19 | 1988 - 2005 |
| Gibside, County Durham | England: North | 83 | 400.0 | 13 | < 1992 |
| Harewood Forest, North Hampshire | England: South | 64 | 300.0 | 20 | < 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 |
| Parc Lodge, Monmouthshire | Wales | 30 | 230.0 | 7 | 1991 - 2002 |
| Dulverton Woods, South Somerset | England: South-West | 51 | 294.1 | 12 | < 2002 |
| Esher Commons (post 1980), Surrey | England: South | 172 | 366.3 | 47 | 1980 - 2002 |
| Eastnor Park, Herefordshire | England: Mid | 93 | 393.5 | 46 | < 2010 |
| 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 |
| Cwm Llyfnant, Cardiganshire | Wales | 44 | 275.0 | 4 | < 2015 |
| Carn Gafallt, Breconshire | Wales | 84 | 352.4 | 23 | < 2015 |
| Cobham Woods NT, West Kent | England: South | 70 | 368.6 | 30 | 2014 |
| Shugborough, Staffordshire | England: Mid | 39 | 369.2 | 18 | 1985 - 2015 |
| Coedydd Mawddach, Merionethshire | Wales | 36 | 258.3 | 10 | 1975 - 2015 |
| Plyde Loch (revised), Ayrshire | Scotland | 25 | 244.0 | 4 | 2012 - 2016 |
| Burley Wood, Leicestershire (with Rutland) | England: Mid | 72 | 275.0 | 12 | < 1988 |
| Buddon Wood (post 1980), Leicestershire (with Rutland) | England: Mid | 79 | 305.1 | 14 | 1980 - 1988 |
| Burley-on-the-Hill Estate, Leicestershire (with Rutland) | England: Mid | 90 | 303.3 | 19 | 1988 - 2016 |
| Croft Castle, Herefordshire | England: Mid | 121 | 404.1 | 52 | < 2012 |
| Wyre Forest , Worcestershire | England: Mid | 126 | 415.9 | 39 | 1980 - 2017 |
| Brockhampton Estate (NT), Herefordshire | England: Mid | 62 | 488.7 | 29 | 1984 - 2016 |
| 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 |
| Castle Drogo (NT), South Devon | England: South-West | 79 | 402.5 | 35 | 1996 - 2016 |
| Thorneythwaite, Cumberland | England: North | 50 | 348.0 | 6 | 2017 |
| Grace Dieu Wood, Leicestershire (with Rutland) | England: Mid | 39 | 205.1 | 7 | 1927 - 2012 |
| Sutton Park (up to 1998), Warwickshire | England: Mid | 66 | 243.9 | 16 | < 1998 |
| Woodwalton Fen NNR, Huntingdonshire | England: Mid | 57 | 315.8 | 16 | 1961 - 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 |
| Sharpenhoe (NT), Bedfordshire | England: South | 54 | 238.9 | 6 | 1986 - 2020 |
| Brownsea Island NT, Dorset | England: South-West | 62 | 316.1 | 15 | 2005 - 2015 |
| 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 |
| Auchinleck Estate, Ayrshire | Scotland | 41 | 285.4 | 9 | 2000 - 2021 |
| Tatton Park (2011-21), Cheshire | England: Mid | 122 | 427.0 | 53 | 2011 - 2021 |
| Bainton Heath, Northamptonshire | England: Mid | 64 | 387.5 | 17 | 2011 |
| 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 |
| 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 |
| Robinson Place Farm, Westmorland (with Furness) | England: North | 53 | 224.5 | 9 | 2021 - 2022 |
| Holmwood, Surrey | England: South | 47 | 297.9 | 7 | 2015 - 2022 |
| Panshanger Park (1990-2022), Hertfordshire | England: South | 156 | 530.8 | 92 | 1990 - 2022 |
| Sheringham Park (NT), East Norfolk | England: South | 88 | 326.1 | 25 | 1987 - 2022 |
| Clumber Park (NT), Nottinghamshire | England: Mid | 177 | 422.0 | 75 | 1990 - 2023 |
| High Park, Blenheim Palace, Oxfordshire | England: South | 261 | 600.4 | 158 | 1950 - 2021 |
| Clumber Park 2023, Nottinghamshire | England: Mid | 124 | 462.1 | 66 | 2023 |
| Thorndon Park SSSI, South Essex | England: South | 66 | 553.0 | 47 | 2023 |
| Tyntesfield (NT), North Somerset | England: South-West | 61 | 260.7 | 11 | 2010 - 2022 |
| 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 |
| Turnworth Common, Dorset | England: South-West | 120 | 475.0 | 62 | 2018 - 2023 |
| Danbury Common (NT) & Danbury Park, South Essex | England: South | 120 | 417.5 | 40 | 1976 - 2019 |
| Burnham Beeches (s.s.), Buckinghamshire | England: South | 263 | 592.0 | 154 | < 2022 |
| Rydal Park & Nab Scar, Westmorland (with Furness) | England: North | 48 | 233.3 | 15 | 2023 |
| Rydal Park & Nab Scar, Westmorland (with Furness) | England: North | 56 | 242.9 | 18 | 2023 - 2024 |
Saproxylic Quality Index