A combination of factors are being blamed for increasing rents.

Trade Me data for June shows the median weekly rent has increased by $50 since last year.

That means the average renter is paying is paying $2600 more.

Economist Cameron Bagrie says landlord costs including interest rates and insurance are rising.

He says there are other factors contributing-  an inflow of migrants, foreign students and workers will be helping drive the market. 

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