Auckland Council has stopped work on four or five house projects following an Environment Court decision affecting more than 400 home owners in the city's older suburbs.
About 430 home owners will have to reapply for resource consent after a court decision now requires greater scrutiny for building projects in special character areas such as Ponsonby, Grey Lynn and Parnell.
The problem consents relate to areas deemed to be of "special character" under the Unitary Plan.
Auckland Council admits it misinterpreted some aspects of the Unitary Plan rules when the consents were originally granted.