Emails released under the Freedom of Information Act reveal that more than £693,000 has been spent on the renovation of five flats on the UK Parliamentary Estate.
The renovations involved the installation of new kitchens, bathrooms, carpets, and floors.
The decision to press ahead with the renovations was made by The House of Commons Commission, which is chaired by Speaker Sir Lindsay Hoyle.
According to the Guardian, "parliamentary sources" have confirmed that Hoyle has been living in one of the flats, and that staff were allowed to choose their own décor within a certain budget.
The exact location of the flats has not been revealed on security grounds.