PHOTO: A new report has found Airbnb listings make up 15.3 per cent of rental housing stock in the CBD. Picture: Mark Stewart

IF YOU’RE struggling to find a rental property, this could be why.

New research shows properties listed on online short-term accommodation site Airbnb account for nearly one in seven rental properties in popular Sydney and Melbourne suburbs.

An Australian Housing and Urban Research Institute (AHURI) report reveals listings are concentrated in inner-city and beachside suburbs, reducing the availability of long-term rentals and creating further affordability pressure in sought-after areas.

Researchers from UNSW Sydney and Swinburne University of Technology examined the extent short-term lettings — whole properties available for more than 90 days a year — are contributing to pressures.