Almost 100,000 homes have been added to the £1m-plus bracket since the start of the pandemic.
Research by TwentyCi showed that of the estimated 770,000 homes valued at more than £1m, 98,931 have crossed that line since March 2020.
Last week, the ONS said that the average house price had risen by 13.2% in the year to June to £266,000.