These data are a 2020-22 repeat of a survey undertaken in 1971, and again between 2000-03, when 103 broadleaved woodlands were surveyed across Britain. Ecological information was recorded at the site level and in more detail from 16 200m2 sample plots located at random within each site. Data were collected on plant species composition of the canopy and ground flora, soil pH and Soil Organic Matter, habitat management and a wide range of other plot and site-level descriptors. This edition of the survey, comprising a re-visit to 97 sites, was funded by a consortium led by the Woodland Trust, and carried out by professional ecologists managed by the UK Centre for Ecology & Hydrology. Users of the dataset should consult the supporting documentation for further information on field methods and analytical results.