PPS 12 Housing in Settlements·Page 21·53
Social Housing Land Reservation
Land for social housing will be reserved through zoning in development plans or by specifying key site requirements, which may include sites in NIHE ownership.
The reservation of land for social housing will be achieved either through the zoning of land or the outlining of key site requirements through the development plan process. This will not preclude other sites coming forward through the development control process. The zoning of land for social housing will help facilitate the supply of affordable housing.
Source — /Users/richardhill/Documents/planning-arch-project/data/documents/regional/PPS 12 - Housing in Settlements.pdf