London’s development system is failing to convert acute housing demand into construction.

Only 4,170 homes were started in the capital during the 2024-25 financial year, a 72 percent fall from the previous year and less than 5 percent of the official annual target of 88,000.

Over roughly the same period, the city’s population grew by close to 100,000.

The figure represents the lowest level of housing starts in London since the aftermath of the Second World War and less than one-quarter of the per-capita building rate across the rest of England.

Local authorities began just 90 homes, while housing-association starts fell 78 percent.

Projections based on the depleted construction pipeline indicate that annual completions could fall to about 4,550 in both 2027 and 2028.

A claim that London requires 1.1 million additional homes is not an official short-term construction target.

It is an estimate of the deficit produced by comparing the capital’s housing stock per resident with averages in comparable Western European countries.

Britain has about 446 homes for every 1,000 people, against approximately 542 across the broader European benchmark.

London accounts for the largest regional share of the resulting national gap.

The shortage is reflected in household finances.

London homes typically cost first-time buyers about 10 times their annual earnings, while private tenants face some of the country’s highest rents.

The consequences extend beyond housing: workers are pushed farther from employment centers, businesses face higher wage and recruitment costs, younger residents delay forming households, and overcrowding and demand for temporary accommodation intensify.

Shoreditch Works illustrates how the planning process can magnify those wider constraints.

Linea Properties proposes redeveloping a block bounded by Curtain Road, Scrutton Street, Worship Street and Holywell Row in east London.

The approximately £800 million scheme includes 78 homes, more than one-third offered at affordable rents, alongside offices for thousands of workers, retail premises, a green-technology incubator, pedestrian routes and public space.

The developer has worked on the proposal for four years and submitted approximately 9,000 pages of material.

Hackney planning officers nevertheless recommended refusal, citing insufficient detail, the height and visual impact of the principal office tower, the amount of affordable workspace and the proposed demolition of postwar commercial buildings considered part of the area’s industrial history.

The application was not formally rejected, as some descriptions of the case have suggested.

In February 2026, Hackney councillors voted to defer a decision after declining to follow the immediate refusal recommendation and requesting substantial revisions.

Mayor Sadiq Khan then called in the application on March 9, transferring authority over the final determination from the borough to City Hall.

A mayoral public hearing will precede the decision.

The dispute captures a defining feature of the English planning system established under the Town and Country Planning Act 1947. Development rights are largely determined through discretionary, case-by-case judgments rather than an automatic entitlement to build when clear zoning rules are satisfied.

Local plans establish policy, but individual schemes can still be negotiated, revised or refused on questions including design, heritage, height, density, affordable housing and local character.

That discretion can protect historic buildings, demand better architecture and ensure that projects contribute to local infrastructure.

It also makes outcomes less predictable.

Developers can spend years acquiring land, commissioning studies and revising designs without certainty that permission will follow.

Each delay adds financing and professional costs, while political opposition can alter the prospects of a scheme even after extensive consultation with planning officers.

Planning permission is only one obstacle.

High interest rates have made development loans more expensive and weakened the market for new apartments.

Construction materials and labor cost substantially more than before the pandemic, while Brexit has contributed to skilled-worker shortages.

Affordable-housing obligations and infrastructure levies reduce the residual value of land and can render schemes financially unworkable unless sale prices, density or public subsidies increase.

More than 280,000 homes with some form of approval remain unbuilt in London.

That total demonstrates that granting permission alone does not guarantee delivery.

Projects may be postponed because expected sales no longer cover land, construction, borrowing and regulatory costs, or because developers cannot secure the advance purchases and investment needed to begin work.

The safety regime introduced after the 2017 Grenfell Tower fire has added another necessary but initially disruptive layer.

Higher-risk residential buildings must pass regulatory gateways before construction and occupation.

The system was created after a fire that killed 72 people exposed grave failures in design, materials, oversight and accountability.

Its early operation produced severe delays.

Reviews intended to take 12 weeks sometimes extended beyond 40 weeks, and regulators said many applications lacked adequate technical information.

The backlog halted projects and increased financing costs, particularly in London, where high-rise residential construction forms a large part of the potential supply.

Performance improved during 2026 after operational changes and new leadership.

Approval periods have moved closer to the statutory timetable, almost all older Gateway Two cases have been cleared, and more than 10,500 homes received building-safety approval during a recent 12-week period, including 3,800 in London.

The improvement removes one bottleneck but does not resolve the underlying viability and planning problems.

The national government and City Hall introduced emergency measures in March.

Schemes providing at least 20 percent affordable housing can use a temporary fast-track route, eligible developments can receive relief from the Community Infrastructure Levy, and selected guidance restricting density has been withdrawn.

The mayor’s call-in powers are also being expanded to cover schemes of at least 50 homes that boroughs intend to refuse.

City Hall’s newly published draft London Plan goes further.

At nearly half the length of the current document, it is designed to reduce duplication and administrative demands.

It prioritizes brownfield development but accepts that previously developed land cannot meet the city’s long-term requirements alone.

Selected parts of the Green Belt near public transport could therefore be released through borough plans where projects provide substantial affordable housing, infrastructure, biodiversity improvements and greater public access to green space.

The draft identifies capacity for as many as 558,000 homes by 2037, contingent on national funding and transport investment.

That is a considerable development program, but it remains below the earlier annual aspiration of 88,000 homes and far short of eliminating a 1.1 million-home comparative deficit.

Consultation on the plan runs until October 15, 2026, followed by an independent examination before its expected adoption in 2028.