The Porirua City District Plan became operative in 1999. It sets the framework for land-use planning, and contains the current provisions and rules that manage Porirua's resources and environment.
There are two major developments in the planning stages to respond to growth in Porirua. Council is working in partnership with Kāinga Ora and Ngāti Toa on the Porirua Development in Eastern Porirua. Plimmerton Farm is a Council initiated proposed plan change to rezone the 384 hectare Plimmerton Farm site.