| Allt-yr-esgair, Breconshire | Wales | 57 | 335.1 | 15 | < 2000 |
| Arundel Park, West Sussex | England: South | 130 | 458.5 | 53 | < 1999 |
| Box Hill, Surrey | England: South | 225 | 552.0 | 67 | < 1997 |
| Dingestow Court, Monmouthshire | Wales | 52 | 284.6 | 5 | 2007 - 2014 |
| Mill Bank, Penallt, Monmouthshire | Wales | 43 | 297.7 | 9 | < 2014 |
| Penallt Woods, Monmouthshire | Wales | 57 | 291.2 | 11 | 2007 - 2013 |
| Livox Wood, Monmouthshire | Wales | 19 | 300.0 | 6 | 2013 |
| Arundel Park (post 1987), West Sussex | England: South | 39 | 364.1 | 13 | 1988 - 1999 |
| Kemerton Estate, Worcestershire | England: Mid | 170 | 437.1 | 74 | 1992 - 2014 |
| Wyre Forest , Worcestershire | England: Mid | 126 | 415.9 | 39 | 1980 - 2017 |
| Nettlecombe Park, South Somerset | England: South-West | 129 | 355.0 | 57 | 1988 - 2019 |
| 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 |
| 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 |
| Wimpole Hall Estate (NT), Cambridgeshire | England: South | 203 | 498.0 | 90 | 1986 - 2023 |
Saproxylic Quality Index