Ruined Hastings Castle walls stand on a grassy hilltop overlooking the coastal town and sea
Hastings Castle in East Sussex, one of the fortifications commissioned by William the Conqueror after the Norman invasion of 1066. Photograph: Chris Redgrave
Hastings Castle in East Sussex, one of the fortifications commissioned by William the Conqueror after the Norman invasion of 1066. Photograph: Chris Redgrave
Norman conquest castle and Dickens chalet among sites added to heritage at risk register

William the Conquerer-built Hastings Castle and Swiss-style writing retreat in Kent two of nearly 200 additions to list