A public housing estate is a housing estate in Hong Kong mainly built by the Hong Kong Housing Authority and the Hong Kong Housing Society.
About half of Hong Kong residents now live in public housing estates and other tower blocks with some form of subsidy. Rents are cheaper than ordinary housing, and are heavily subsidised, financed by financial activities such as rents and charges collected from car parks and shops within or near the estates.
They are usually located in the remote or less accessible parts of the territory, but urban expansion has put some of them in the heart of the urban area. Home Ownership Scheme flats, unlike the public housing estates, are sold to the owners at discounted prices.
Some estate have the video system on the roof.