Whanganui mayor Hamish McDouall said the purpose of the plan change was to meet projected housing demand for land to 2065.
"It is a significant part of expanding the profile of Whanganui's built environment which will allow for a lot of new sections to be developed over time," he said.
"The rezoning represents a sustainable approach to city growth, planned to ensure economic, social and environment benefits are secured for future generations, in line with planning best practice."
Hapū, iwi, landowners, community groups and technical experts have informed the preparation of the Springvale Structure Plan in relation to ecological, archaeological, cultural, traffic and stormwater management options.
Whanganui District Council planning manager Hamish Lampp said significant subdivision has already been lodged with the council and more were expected now that the growth area is zoned for housing.
"The adoption of the Structure Plan also coincides with the construction of the Fitzherbert Avenue extension, linking Springvale with Mosston Rd, with works likely to start in December this year," Lampp said.