Duropolis is the name of an archaeological site at Winterborne Kingston in the English county of Dorset, believed to be the remains of the first planned town in Britain. The site's first discoveries were made in 2008 led by co-directors Miles Russell and Paul Cheetham. The 32,000 square metres (340,000 sq ft) Iron Age settlement is believed to date to around 100 BCE, making it 70 years older than the Roman town of Silchester.