The Law Society is urging the Government to drop plans to give itself extraordinary powers to change the Resource Management Act in order to establish "special housing areas" intended to fast track affordable housing.
The Housing Accords and Special Housing Areas Bill being considered by a parliamentary committee would enable the Government to strike "housing accords" with councils to streamline the planning process and quickly free up land for new housing.
However, in a stinging criticism of the proposed legislation, the Law Society said parts of it were "contrary to the rule of law and good legislation principles".
The society was particularly concerned that the bill would allow the Government to make changes to the Resource Management Act - the key legislation governing the planning and consenting process for councils - without having those changes considered by Parliament.
Under clause 88 of the bill ministers would be able to make regulations - which do not require full parliamentary scrutiny - to alter parts of the RMA.