Market Estate is a public housing estate consisting of 271 flats and maisonettes situated to the north of Caledonian Park in the London Borough of Islington. It is named after the Metropolitan Cattle Market held in the area for many years up until the 1960s. Three of the six blocks that make up the estate are named after famous breeds of the animals that used to be traded in the market; Tamworth (pigs), Kerry (cows) and Southdown (sheep).