Castle Drogo is a country house and castle near Drewsteignton, Devon, England. It was built from 1911 to 1930 for Julius Drewe to designs by architect Edwin Lutyens, and is a Grade I listed building. It is currently undergoing a conservation project (2013–2018) to finally make it watertight. It was the last castle built in England. The gardens are Grade II* listed in the National Register of Historic Parks and Gardens.