What is "saltdean"

Saltdean is a coastal village and residential district located on the chalk cliffs of the south coast of England in East Sussex, United Kingdom. It is situated on the eastern edge of the city of Brighton and Hove, with part (known as East Saltdean) outside the city boundary in Lewes district. Saltdean is approximately 5 miles east of central Brighton, 5 miles west of Newhaven, and 6 miles south of Lewes. It is bordered by farmland and the South Downs National Park.