Mayor's Strategic Land Programme Opens 8,000 New London Homes

The first tranche of London's much-anticipated public land release opens for applications on August 1, with 23 sites across eight boroughs offering capacity for at least 8,000 new homes, City Hall confirmed Thursday.

The programme, officially named the Strategic Housing Land Accelerator, prioritises developers who commit to at least 40 per cent affordable housing on each plot. Sites range from a 2.3-acre former depot in Tottenham Hale to a disused school playing field in Thamesmead, with a combined estimated value of £1.6 billion.

The move comes as London's average house price crossed £515,000 in June, according to the latest Land Registry data, up 4.2 per cent year-on-year, while new build completions in the capital fell to just under 18,000 in the 12 months to March, the lowest figure since 2015. With the Elizabeth Line now fully operational and driving demand along its corridor from Paddington to Abbey Wood, pressure for shovel-ready sites is acute.

Who gets first dibs?

Applicants must register with the Greater London Authority's new online portal by September 15. The GLA says it will prioritise bidders that can demonstrate a track record of delivering affordable homes, have secured financing, and commit to starting construction within 18 months of planning approval.

Small and medium-sized builders, defined as those that built fewer than 250 homes in the past three years, get a reserved allocation on five of the smaller sites, a nod to the mayor's election pledge to diversify the capital's construction sector. The Federation of Master Builders estimates that London has lost 600 small housebuilders since 2010.

One of the most closely watched sites is a 1.8-hectare plot next to Ilford station in Redbridge, where the Elizabeth Line has pushed average prices in the immediate area up 17 per cent over two years. Another is a council-owned car park in Lewisham, close to the planned Bakerloo line extension, where the local authority has already drawn up a draft masterplan for 350 homes.

How to apply, and catch the pitfalls

The application process follows a standard two-stage format. Stage one is a pre-qualification questionnaire due by August 31, covering financial standing, past delivery and approach to design quality. Shortlisted bidders then submit detailed proposals by October 15, including tenure mix and construction timeline.

Land will be sold at open market value, but the GLA says it will consider phased payment terms for successful bidders who commit to starting within 12 months. The first spade in the ground is expected at the Roosevelt Drive site in Camden, a 0.9-hectare former NHS clinic, by April 2027.

Industry insiders caution that the terms are tighter than previous City Hall land sales. The mayor's new affordable housing threshold, 40 per cent minimum, up from 35 per cent under the previous administration, means developers will need to underwrite significant cross-subsidy. Savills estimates the viability gap on some of the inner-London sites could be £80,000 per unit.

Deputy Mayor for Housing and Development, Tom Copley, said in a statement that the programme “reverses the lost decade of land banking” by big developers. The GLA will publish a full register of unbuilt planning permissions on public land in September, alongside a league table of the fastest and slowest builders.

What happens next is clear: the clock is ticking. Developers should have their due diligence ready before the August portal opens, and be prepared for a competitive field that includes some of Europe's biggest housebuilders. The second tranche, covering 14 further sites, is scheduled for release before the end of the year.