Key Takeaways
- The UK government is set to announce emergency measures to boost London's ailing housebuilding market, with the core proposal being a significant reduction in affordable housing requirements for developers from the current 35% to approximately 20% for private sites.
- The announcement, initially anticipated earlier this week, has been delayed until at least the end of October due to ongoing discussions between the Ministry of Housing, Communities and Local Government (MHCLG) and the Greater London Authority.
- These interventions are deemed critical as London's housing delivery faces a "major crisis," with new private-sector home starts plummeting to just 3,248 in the first three months of 2025, and overall homes under construction falling from 60,000 to 40,000 since 2020.
The UK government is preparing to unveil a package of emergency measures aimed at kickstarting London's severely stagnated housebuilding sector, though the official announcement has been temporarily postponed. The central plank of these reforms involves a substantial cut in the mandatory affordable housing proportion for new developments, a move welcomed by developers but met with strong criticism from homelessness charities.
The proposed changes would see the required percentage of affordable homes in privately owned developments in London reduced from the current 35% to around 20%. Public sites, which currently mandate 50% affordable housing, may also see adjustments. Sources suggest the package could also include modifications to design requirements and a potential easing of other "planning gain" contributions, such as the Community Infrastructure Levy.
These interventions come amidst a deepening crisis in London's housing market. Figures indicate a dramatic downturn in construction activity, with only 3,248 new private-sector homes started in the first quarter of 2025. The total number of homes under construction in the capital has fallen sharply from approximately 60,000 between 2015 and 2020 to 40,000 currently, with projections indicating a further drop to as low as 15,000 by 2027 if no action is taken. The Home Builders Federation has previously warned that London's housing delivery is in a "major crisis" and that government targets are unachievable without significant intervention.
The announcement, initially expected on Wednesday, October 22, has been delayed until at least the end of the month due to ongoing negotiations between the Ministry of Housing, Communities and Local Government (MHCLG) and the Greater London Authority (City Hall). Despite the delay, the government is reportedly keen to finalize the measures before the Office for Budget Responsibility's report, which includes economic growth forecasts, is published alongside the budget on November 26.
While developers have expressed support for the proposed relaxation of affordable housing rules, viewing them as essential to making projects viable in the current economic climate, homelessness charities have voiced strong opposition. Organizations like Shelter argue that slashing affordable housing targets will exacerbate the existing homelessness crisis in the capital. Mayor of London Sadiq Khan is collaborating with Housing Secretary Steve Reed on these reforms, acknowledging the pressing need to stimulate housebuilding across all tenures. The anticipation of these measures has already had a minor impact on currency markets, with the headline sparking a late-session spike in the GBPUSD pair.
Ed Liston is a senior contributing editor at TheStockMarketWatch.com. An active market watcher and investor, Ed guides an independent team of experienced analysts and writes for multiple stock trader publications.