Laindon is an Ancient Parish in Essex, England. It was based on the (probably smaller) Manor of the same name and now lies mostly within the urban area of Basildon. The Parish incorporated a finger of land that reached north into the neighbouring parish of Great Burstead to include Laindon Common and the once larger and adjacent Frith Wood which the Lord of the Manor, the Bishop of London emparked around the year 1260. This finger of land may have been the territory of Well Street Manor, which was mentioned in the Domesday Book.