Question to the Ministry of Housing, Communities and Local Government:

To ask His Majesty's Government what assessment they have made of the impact of recent reforms to permitted development upon the relative distribution of (1) retrofit or reuse of buildings and (2) the development of new-build properties.

We have not carried out such an assessment. However the Department publishes data on how many new homes have been delivered, including through which planning mechanism, across England. This is available at:

Housing supply: net additional dwellings - GOV.UK