Investment forums and housing blogs have questioned data collected by CBA that indicates housing affordability is on par with other comparable countries.
The bank is facing criticism that slides from its 18-page presentation for foreign investors selectively uses data to support its case.
According to a report in the Sydney Morning Herald, one slide compares Australian housing affordability to several cities using figures from research organisation Demographia and investment bank UBS.
While UBS data was exclusively used for Australian cities, Demographia data was used for overseas cities.
The report found housing in Sydney and Melbourne was more affordable that cities such as San Francisco, New York and Vancouver.
CBA denied claims it skewed the report findings, stating that the slide information was prepared by UBS without bank intervention. A UBS spokesman said the analysis was a bottom-up look at Australian housing prices relative to income, based on ATO information. Demographia based its figures on information from the ABS.
