Coordinates: 51°31′33″N 0°04′29″W / 51.5259°N 0.0748°W
The Boundary Estate is a housing development, formally opened in 1900, in the East End of London, England. It is situated in the north western corner of Bethnal Green in the London Borough of Tower Hamlets and on the boundary with Shoreditch, in the London Borough of Hackney.
The estate, constructed from 1890, was one of the earliest social housing schemes built by a local government authority, although Liverpool Corporation had begun building tenement blocks in 1869. It replaced the Friars Mount rookery in the Old Nichol. It was built on top of the demolished rookery, the works were begun by the Metropolitan Board of Works in 1893 and completed by the recently formed London County Council. It was, arguably, the world's first council estate. Soil from the foundations was used to construct a mound in the middle of Arnold Circus at the centre of the development, surmounted by a still-extant bandstand. The estate consists of multi-story brick tenements radiating from the central circus, each of which bears the name of a location along the River Thames.