The Evolving Role of Mayoral Authority in UK Housing

The influence of directly elected mayors on urban social housing policy in the United Kingdom has grown substantially over the past two decades. With housing affordability crises deepening across major cities, mayors now serve as critical intermediaries between central government directives and local implementation. Their ability to set strategic housing priorities, broker funding deals, and coordinate between developers, communities, and Whitehall departments places them at the centre of efforts to expand social housing supply. However, the scope of that influence varies widely depending on devolution agreements, fiscal powers, and political context.

From Ceremonial to Executive: The Rise of Metro Mayors

The modern UK mayoral model emerged in 2000 with the creation of the Greater London Authority and the first directly elected Mayor of London. This represented a significant departure from the traditional council leader system, giving one elected official a citywide mandate and control over strategic planning, transport, and housing. The success of this model led to the establishment of metro mayors in combined authority areas such as Greater Manchester (2017), Liverpool City Region (2017), West Midlands (2017), and others under the Cities and Local Government Devolution Act 2016.

These mayors hold powers over housing strategy, land-use planning, transport, and skills funding. They also negotiate devolution deals with central government that can include additional housing investment and borrowing freedoms. For social housing specifically, mayors can set targets for affordable home delivery, influence the use of public land, and allocate grant funding from programmes such as the Affordable Homes Programme. The gov.uk devolution deals pages provide details on the specific powers each mayor holds.

Spatial Planning Authority

Mayors control the statutory spatial development strategy for their region. In London, this is the London Plan; in Greater Manchester, the Greater Manchester Spatial Framework; and in the West Midlands, the West Midlands Plan. These documents dictate where new housing, including social housing, should be built, set density standards, and require minimum percentages of affordable housing in major developments. This authority gives mayors a direct lever to shape the quantity and location of social housing provision.

Control Over Housing Investment

Through the Housing Investment Fund and devolved grants, metro mayors allocate capital funding to local councils and housing associations. The Mayor of London, for example, negotiates a multi-year funding settlement with the Ministry of Housing, Communities and Local Government. The current London Affordable Homes Programme 2021–2026 provides billions of pounds for social rent, London Living Rent, and shared ownership homes. Similar arrangements exist in other combined authorities, though the scale varies. The London Housing and Land pages offer detailed information on current programmes.

Case Study: The London Plan and Social Housing Delivery

The Mayor of London, currently Sadiq Khan, has made affordable housing a central pillar of his mayoralty. The London Plan (2021) sets a target of 50% affordable housing on all major developments and a total delivery of 65,000 homes per year. To enforce this, the mayor uses powers to reject planning applications that fail to meet these thresholds, though those decisions can be overridden by the Secretary of State. Between 2016 and 2022, London delivered over 116,000 affordable homes, including a significant proportion of social rent homes. The mayor also introduced the London Affordable Rent product, which sets rents at around 60-70% of market rates.

Projects such as the regeneration of the Aylesbury Estate and the development of new social housing on Transport for London land illustrate how mayoral leadership can drive delivery. The mayor’s team also provides direct grants to councils and housing associations for new-build social housing, using recycling of grant receipts and right-to-buy receipts. However, the effectiveness of these policies is constrained by rising construction costs, land values, and the viability gap, which developers often use to negotiate reductions in affordable housing contributions.

Case Study: Greater Manchester’s Housing Strategy

The Mayor of Greater Manchester, Andy Burnham, has prioritised housing as a key part of his ambition to create a more equitable city region. The Greater Manchester Housing Strategy emphasises building 200,000 homes over 20 years, with at least 50% affordable. A specific target of delivering 30,000 social rent homes by 2037 was announced in 2023. The mayor uses the Greater Manchester Combined Authority’s housing investment fund to provide loans and grants to housing associations and councils. A notable initiative is the 'Social Housing Decarbonisation Fund', which pairs energy efficiency improvements with new social housing builds.

Manchester has also pioneered the use of joint venture partnerships with housing associations to build social housing on publicly owned land, bypassing the private developer viability debates that slow down delivery in London. The mayor has advocated for ending the right to buy for housing association tenants and for reforming local housing allowance to better support social tenants. Yet the region still faces challenges: waiting lists for social housing exceed 50,000 households, and homelessness has continued to rise.

Devolution, Funding, and the Limits of Mayoral Power

While mayors have gained significant strategic influence, their ability to materially increase social housing supply is constrained by factors beyond their control.

Central Government Funding Cycles

Most social housing capital funding comes from national programmes like the Affordable Homes Programme, which operates on multi-year cycles. Mayors have limited discretion over the total quantum of funding allocated to their region. They can bid for additional funding via competitive processes, but the outcomes are unpredictable. During austerity (2010–2019), capital budgets for new social housing were cut by more than 60%, severely limiting what mayors could achieve.

Right to Buy

The national Right to Buy policy, which enables council tenants to purchase their homes at a discount, has reduced the stock of social housing by over 1.5 million homes since 1980. Mayors cannot repeal this legislation; they can only seek local flexibilities. Some mayors, including those in London and Manchester, have negotiated agreements that allow them to retain 100% of Right to Buy receipts to reinvest in replacement homes, but the discount levels and buyback restrictions still deplete the social housing stock faster than it can be replaced.

Land Availability and Viability

Land values in major cities are high, and the viability assessment process—used by developers to argue that affordable housing requirements are unaffordable—often reduces the number of social homes actually built. Mayors can set stronger policies, such as the London Plan’s ‘threshold approach’ to viability, but central government has weakened these tools by issuing national planning policy guidance that limits councils’ ability to require viability assessments to be publicly disclosed or to enforce affordable housing levels.

Comparative Perspective: Mayoral Housing Powers in Other Countries

Looking abroad, UK mayors operate with comparatively limited fiscal autonomy. In Germany, city mayors control land taxes, zoning powers, and can require that 30-50% of new developments be allocated to social housing through municipal ordinances. In France, the loi SRU mandates that communes with more than 3,500 inhabitants must have at least 25% social housing, enforceable by state prefects. French mayors can also impose penalties on communes that fail to meet targets. In the United States, mayors of cities like New York and Chicago have greater control over local revenue and can issue bonds for public housing construction, though the political constraints are similar.

UK mayors operate within a centralised governance system where key levers—such as fiscal devolution, welfare policy, and planning appeals—remain with Westminster. The Institute for Government’s metro mayors explainer details these limitations and the growing calls for deeper devolution of housing powers.

Criticism and Accountability

Despite their increased prominence, mayors face criticism on several fronts. Some argue that mayoral housing strategies are too reliant on private-sector delivery, resulting in a predominance of intermediate products (shared ownership, discount market rent) rather than genuine social rent homes. Others point to the slow pace of delivery: in London, the target of 65,000 homes per year has never been met, and social housing starts have declined since 2019. Accountability is also a concern. Mayors are elected every four years, making it difficult to maintain long-term housing programmes that require consistent investment across decades.

Another criticism is the lack of direct control over housing associations, which are independent, non-profit organisations that own most social housing. Mayors cannot compel associations to build in particular locations or to set rent levels below the national formula. This limits the mayor’s ability to tailor social housing provision to local need.

The Future of Mayoral Leadership in Social Housing

The trajectory of mayoral involvement in social housing will depend on broader political decisions about devolution and funding. The current government’s commitment to increasing social housing supply (pledging 1.5 million new homes over the next parliament) will require mayors to play a lead role in identifying sites, securing planning permissions, and channelling investment. Proposals for further devolution of housing benefits, such as allowing mayors to set local housing allowance rates or to pool Right to Buy receipts regionally, could give them more tools.

There is also growing interest in establishing mayoral-led public development corporations, similar to Transport for London’s property arm, which could directly build social housing on a large scale. The Old Oak and Park Royal Development Corporation in London and the Mayoral Development Corporations in Manchester are early experiments. If successful, these models could shift the balance of power from developers and housing associations to mayoral authorities, increasing both the quantity and quality of social housing delivery.

Conclusion

Mayoral leadership has become a defining feature of urban social housing policy in the UK. Mayors in London, Greater Manchester, Liverpool City Region, and other combined authorities have used planning powers, investment funding, and political influence to increase the supply of affordable and social homes. However, their impact is mediated by central government funding, national policies like Right to Buy, and the structural viability of development. The most effective mayors combine strategic vision with pragmatic deal-making, leveraging limited powers to deliver outcomes that would not otherwise occur. As housing affordability continues to pressure urban populations, the role of the mayor as a housing champion will only grow in importance, provided that further devolution of fiscal and regulatory powers accompanies that responsibility.

For those interested in tracking mayoral housing initiatives, the Ministry of Housing, Communities and Local Government publishes regular data on housing starts and completions by region, while the National Housing Federation provides analysis on social housing delivery trends across the UK.