Empty, neglected, structurally unsound; There can be hundreds of reasons why some of our buildings across the region are put on Historic England's "At risk" register.
This year, 18 sites have been added to the list in the South, including the ruins of St Nicholas's College in Wallingford, Oxford and the Stone House, formerly the Judge's lodgings for Maidstone, in Kent
It was once described as one of the most powerful royal castles of the 12th and 13th century but now, the crumbling Wallingford Castle has been added to the list.
Our reporter, Emma Wilkinson, went along to find out if the under-threat Grade one listed building can be restored.
It's twenty years since Historic England identified 143 sites in the South that were 'at risk'. Since then almost a hundred of those buildings have been restored or improved, but 66 sites remain - some still in a bad way.
St Mary's church in Frittenden, Kent cost three-quarters of a million pounds to make safe from the elements.
Our reporter, Sarah Saunders, has been to see why such projects are so expensive - but so important for our history.