Rental advocates, Renters United, have renewed calls for controls on rents as they continue to surge.
A report by the Housing Technical Working Group has found rents rise in line with tenants' wages, as well as rental supply and demand with prices rising in a tight market.
Rental properties are in short supply, particularly following the summer storms which saw rental property availability slump by 35-percent in Auckland.
This is despite record numbers of new homes being built.
Renters United president Geordie Rogers spoke to Corin Dann.
