London Housing Crisis: Why House Building Collapsed and How Policy Changes Might Fix It

Send us a topic important to you.There has been a critical collapse of house building in London, where construction starts have dramatically fallen short of government targets. The debate centres on the Mayor's London Plan, which critics argue has failed due to its complexity and expensive demands, such as high affordable housing requirements (often 35% or 50%). We examine the resulting human cost, including record homelessness, with over 97,000 children in temporary accommodation. The discussion focuses on whether recent emergency measures, like partial infrastructure levy relief and a fast-track route requiring just 20% affordable homes, will successfully unlock stalled developments, especially on brownfield land.Key TakeawaysHouse building in London has collapsed dramatically, with starts falling to under 5% of the Government’s target in some periods.High costs, complex regulations (like the 500-page London Plan), and specific requirements (e.g., carbon targets and high fees) add expense and delay major projects.Demanding that 35% or 50% of privately built homes be affordable has made many housing projects financially unviable, deterring investment.The housing crisis is linked to severe social problems, including record homelessness, with councils spending £5 million a day on temporary accommodation.Temporary emergency measures include introducing partial relief from the Community Infrastructure Levy (CIL) and a new time-limited route for schemes delivering 20% affordable housing.Important Definitions and ConceptsBrownfield Land: Previously developed land, often industrial, that is seen as suitable for housing development, contrasting with protected green belt areas.Affordable Housing Targets: Local requirements specifying the proportion of new homes in a development that must be available at below-market prices or rents, often set at 35% or 50% in London.Community Infrastructure Levy (CIL): A charge imposed on new developments, intended to help fund the infrastructure needed to support growth, such as schools and health facilities.Source: House Building: LondonVolume 774: debated on Wednesday 5 November 2025Follow and subscribe to 'The Bench Report' on Apple, Spotify, and YouTube for new episodes daily: thebenchreport.co.ukSubscribe to our Substack Shape our next episode! Get in touch with an issue important to you - Producer Tom will grab another coffee and start the research!Email us: [email protected] us on YouTube,  X, Bluesky, Facebook, Instagram and TikTok! @benchreportUKSupport us for bonus and extended episodes + more.No outside chatter: source material only taken from Hansard and the Parliament UK website.  Contains Parliamentary information repurposed under the Open Parliament Licence v3.0....