UDAs would not be able to grant their own resource consents, but would be subject to the same fast-tracked Resource Management Act consenting processes as are used for Special Housing Areas, where the government has already enacted legislation to try and free up land for residential development.
"UDAs can create vibrant new suburbs with greater gains for housing, jobs and amenities than through usual incremental piecemeal development," Smith said.
The initial announcements are short on detail as to how UDAs would be created and governed, other than to stress that they must have local government and community buy-in and can't be imposed unilaterally from Wellington and that they should include private sector investors.
"The government proposes that, in appropriate casers, this development plan may override parts of existing and proposed district and regional plans", consistent with the Productivity Commission's argument that national interest considerations should be able to be brought to bear in areas where developments required for affordable housing or urban growth and renewal could be prevented by localised self-interest. "This would happen only where the government decides that the public benefit outweighs the broader requirements at district or regional level.
"For example, a UDA may be able to apply different requirements for housing density or height restrictions than apply across the rest of the city," Smith said.
UDAs were likely to be "suitable for a small number of significant projects", could not cover entire cities or towns, and would include public consultation on their plans.
"Only land within an urban area, or that is sufficiently close to an urban area that it may in future service or become part of that area will be affected by the proposed legislation."