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 the London Plan 2021 on the number of houses built in London.

Section 346 of the Greater London Authority (GLA) Act 1999 places a duty on the Mayor to monitor the implementation of the Mayor’s London Plan. The second Annual Monitoring Report under the 2021 Plan, was published in September 2025 and showed that housing completions reduced in 2022-23. You can find the Annual Monitoring Report published by the Greater London Authority here: Monitoring the London Plan | London City Hall.

The Government recognises that London housing delivery is below the level of housing need in London and below the annual target set out in the London Plan 2021. To address this, the Secretary of State and the Mayor of London announced a new package of support for housebuilding in London in October 2025. I refer the Noble Baroness to the Written Ministerial Statement published on 23 October 2025 (HLWS989).

The Mayor is currently working on a new London Plan, with consultation on a draft expected in summer 2026. The Government will work with the Mayor to ensure that the next London Plan is ambitious and aligned with our priorities set out nationally through the National Planning Policy Framework.