The Andover Estate, in Holloway, North London, is a large Islington London Borough Council housing estate which is flanked by Hornsey Road (west), Seven Sisters Road (south), Durham Road (east) and Birnam Road (north). It falls into the N7 postcode district of London. The older part of the estate along Andover Road was built in 1938. The newer buildings, which make up the majority of the estate, were built from 1973 to 1979. Three large uniquely designed triangular buildings rise into the sky on the estate, named Didbin, Noll and Docura Houses respectively, after local architects.