For much of the past forty years, a council in England directly building homes at scale was the exception rather than the rule. Right to Buy reduced local-authority stock after the early 1980s, while successive affordable-housing programmes increasingly relied on housing associations and other registered providers rather than recreating the municipal housebuilding model that had once produced large numbers of homes.
That history makes the government’s new Social and Affordable Homes Programme easy to describe as a return of council housebuilding. There is some truth in that. Local authorities have a dedicated route into the programme, three councils have already secured Strategic Partnership status with Homes England, and councils can combine public land, grant, borrowing and private-sector delivery capacity in ways that were harder to sustain under shorter funding settlements.
But for developers and landowners, the more important change is broader. The £39 billion programme does not simply fund councils to become housebuilders. It increases the purchasing and development capacity of councils, registered providers and their partners, while creating formal routes through which private developers can build additional affordable homes for those organisations. In a market where private sales rates, scheme viability and the availability of registered-provider buyers have all constrained delivery, that makes the public and affordable-housing sector a potentially more important counterparty to private development.
The commercial question is therefore not whether councils are coming back to replace housebuilders. It is how a decade of grant funding changes who can buy land, who can acquire completed homes, which sites become financeable and how developers structure schemes when conventional open-market sales cannot carry the whole development.
£39 billion is a major increase — but it is not £39 billion of council housebuilding
The Social and Affordable Homes Programme runs from 2026 to 2036 and could support around 300,000 additional social and affordable homes in England, with at least 60% intended for Social Rent. Homes England has at least £27.3 billion to deploy outside London, while the Greater London Authority has up to £11.7 billion for the parallel London programme. Social and Affordable Homes Programme 2026–2036
Its scale is unquestionably greater than the programme it replaces, but the headline comparison needs care. The Affordable Homes Programme launched for 2021–26 with an £11.5 billion budget over five years. The new £39 billion commitment covers ten. On a crude annualised basis that is around £3.9 billion a year versus £2.3 billion under the original AHP allocation — roughly 70% higher before later AHP top-ups, bridge funding and inflation are considered. Affordable Homes Programme annual report 2024–25
The longer funding horizon may be as important as the bigger annual sum. Housing development routinely runs across spending-review periods, particularly where land assembly, planning, remediation or major infrastructure is involved. A ten-year programme gives councils and registered providers greater ability to plan pipelines, negotiate with developers and commit to land earlier than a shorter funding cycle allows.
It should not, however, be read as £39 billion being handed directly to local authorities. Homes England’s first Strategic Partnership allocations in August 2026 awarded £9.58 billion to 33 organisations outside London to support around 73,600 homes. Only three of those 33 Strategic Partners — Cambridge City Council, Eastleigh Borough Council and Newcastle City Council — were councils, while nearly two-thirds of the homes funded through those partnerships are intended for Social Rent. Initial SAHP Strategic Partnership allocations
London shows why the council revival should not be dismissed either. City Hall has since announced an initial allocation of more than £6 billion under its programme and says council-led projects will account for 60% of the homes delivered through those initial allocations, with 70% for Social Rent. Mayor of London’s housebuilding offer The picture is therefore genuinely mixed: direct council-led delivery is strengthening, especially in London, but the national programme still relies heavily on housing associations and private development partners.
Private developers are inside the funding architecture — but Section 106 is still separate
The clearest evidence is the programme’s Developer Delivery route. Homes England expressly allows Strategic Partnerships where developers plan to sell additional affordable homes to registered providers over and above planning obligations, or where registered providers contract with developers to acquire additional affordable housing at scale, predominantly on a turnkey basis at practical completion. Homes England SAHP guidance
For new Developer Delivery or Land-led Strategic Partnerships, the scale threshold is substantial: at least 1,500 homes by March 2036 and an initial funding cap of £250 million. The local-authority Strategic Partnership route has a lower minimum of 800 homes. Those thresholds are designed for organisations capable of committing to large programmes, not for every developer with a single site.
Smaller developers are not therefore excluded from the programme. Continuous Market Engagement remains open on a scheme-by-scheme and portfolio basis and is explicitly designed to accommodate smaller and medium-sized providers, new entrants and local authorities that cannot deliver at Strategic Partnership scale. Homes England says initial CME portfolio bids are generally expected to contain around 300 to 500 homes, while individual schemes can be submitted through the general route.
That distinction matters because the commercial route into affordable housing is no longer simply “sell Section 106 units to a housing association”. A large developer may structure a multi-site programme with a registered-provider partner; a regional developer may bring a particular site through CME; and an unregistered developer can itself bid for grant-funded rented housing, provided ownership and management ultimately pass to a registered provider where the law requires it.
The programme can also support the conversion of some homes intended for market sale into social or affordable housing where doing so accelerates delivery or adds supply. Strategic Partnerships cannot make this the dominant model — acquisitions of homes built for market sale are capped at 10% of their delivery — but the mechanism is significant. It gives developers another outlet where sales absorption has weakened without turning Homes England into an unlimited buyer of unsold private stock.
That changes the economics of larger sites. A bulk affordable disposal may sacrifice some of the upside available from individual market sales, depending on the scheme and grant structure, but it can bring greater certainty over take-up, reduce exposure to private sales rates and recycle capital earlier. The relevant comparison for a developer is therefore not simply affordable value versus open-market value per unit; it is the effect of tenure mix on cashflow, build pace, finance costs and the residual economics of the whole site.
The opportunity has an important boundary outside London. Homes England’s SAHP grant cannot be used to acquire affordable homes that a developer is already required to provide through a Section 106 agreement or equivalent planning condition. Homes England nevertheless expects grant-funded partners to continue acquiring Section 106 homes where opportunities exist, using their wider financial capacity rather than applying SAHP grant directly to those units.
That means a developer struggling to find a registered provider for an existing Section 106 package cannot assume that the £39 billion programme has solved the problem. The same housing association can have new grant-backed capacity to buy land or commission additional affordable homes while remaining reluctant to acquire a difficult Section 106 package on another site.
Current market evidence already points in that direction. Savills reported in its Q2 2026 Residential Development Land review that the launch of SAHP had brought registered providers back into the land market, with competitive bids appearing for oven-ready sites in primary locations. At the same time, it found appetite for Section 106 stock remained relatively limited because grant cannot be deployed to acquire those homes outside London. Savills Residential Development Land – Q2 2026
The Home Builders Federation’s recent work shows why that distinction matters to private delivery. Its 2025/26 State of Play research reported continuing difficulty securing registered-provider buyers for Section 106 homes, with 65% of SME respondents identifying the issue as a barrier in the planning process and 58% describing it as a major barrier to growth. Its wider local-authority evidence also pointed to hundreds of sites delayed or stalled where an RP buyer could not be secured. HBF State of Play 2025/26
The result is a two-track affordable-housing market. New grant-backed land opportunities can attract renewed RP competition at the same time as planning-obligation stock remains difficult to place. For developers, the difference is not semantic. One route can help unlock a site; the other can still prevent a site from starting.
That also explains why the new national Section 106 engagement guidance published in August 2026 matters alongside SAHP rather than being replaced by it. The guidance, developed across government, housebuilders, housing associations and local government, is intended to improve early engagement and reduce the risk of affordable packages becoming stranded late in the development process. The existence of a £39 billion grant programme does not remove the need to repair the mechanics of the Section 106 market itself.
Public funding can change land and development economics
For landowners, the most interesting effect may arrive before a home is built, because a better-funded registered-provider sector creates another source of demand for residential land. That matters in a market where private housebuilders have become more selective. Savills recorded UK urban residential land values down 6.6% in the year to Q2 2026 and greenfield values down 3.3%, while noting stronger RP competition for sites capable of early delivery.
The important point is not that SAHP will automatically inflate residential land values. The evidence suggests something more selective. Grant-backed buyers are particularly interested in deliverable, oven-ready land where funding can translate into starts quickly, while sites carrying planning uncertainty, remediation, infrastructure burdens or difficult viability remain much harder to underwrite.
That can produce a more bifurcated land market rather than a broad-based recovery. Two sites with similar theoretical development capacity can attract very different demand if one already has a workable consent, infrastructure solution and affordable-housing proposition while the other still carries years of risk before construction.
For a landowner, public funding can therefore change the best route to value without necessarily increasing the headline price of every site. An outright sale to a volume housebuilder is no longer the only credible route where a council, registered provider or developer-RP partnership can underwrite the land against grant-supported rental or shared-ownership delivery. Equally, the presence of a public or affordable-housing buyer does not make an overvalued site viable: Homes England assesses value for money, with grant per home a central metric, and partners still have to make land, construction and financing costs reconcile with the completed value of the scheme.
This is where the counter-cyclical value of the programme is most commercially interesting. Private housebuilders may reduce land buying when sales rates weaken; grant-backed providers can sometimes move in the opposite direction because their demand is tied less directly to owner-occupier absorption. That can support transactions and development starts precisely when the private market is cautious.
It can also create competition for the most de-risked sites. A housebuilder that previously expected little competition from an affordable provider may find an RP able to bid seriously for a consented site because long-term grant funding has changed its capacity to commit. The effect will not be uniform nationally, but for land agents and developers working in locations where RPs have active programmes it changes the buyer universe.
Council land and joint ventures matter because land can become capital
Where councils want more involvement than a conventional disposal provides, joint ventures and development partnerships can turn public land into part of the financing structure rather than simply selling it at the outset. There is no single council–developer JV model: the balance of land value, debt, infrastructure, development management and eventual profit varies widely, which is why broad claims about a “typical” structure are rarely useful.
Wichelstowe in Swindon illustrates the principle well. Swindon Borough Council and Barratt Developments entered a 50:50 joint venture, with the council’s accounts describing the authority contributing land while the developer funds infrastructure and housebuilding, with proceeds shared through the venture. The council’s current accounts confirm its 50% ownership of the joint venture and the basic division of roles. Swindon Borough Council accounts
The commercial significance lies less in copying that corporate structure than in understanding what it achieves. The council remains exposed to the performance of the development for longer and retains influence over delivery, while the private partner contributes housebuilding capability and capital that the authority would otherwise have to procure. A land receipt is exchanged, at least in part, for a longer participation in development risk and value.
Brighton & Hove offers another model. Homes for Brighton & Hove, the partnership between the city council and Hyde, is building 306 affordable homes at Sackville Road: 183 homes for council rent and 123 for shared ownership. The scheme sits beside Moda’s private Hove Central neighbourhood rather than representing the council replacing private development across the wider site. Homes for Brighton & Hove: Sackville Road
The structures differ because the commercial problem differs. One keeps council land inside a long-term development vehicle; another combines a council and housing association to deliver a specific affordable phase. Treating both simply as “councils building houses” misses where private-sector capital and capability actually enter the transaction.
Funding does not automatically become housing supply
The size of the public commitment creates another risk of misreading the market: treating allocated grant as equivalent to delivered housing. Homes England’s initial £9.58 billion Strategic Partnership allocation is expected to support around 73,600 homes, while more than £16 billion outside London remained unallocated when those awards were announced. London has since moved further, with City Hall announcing an initial allocation of more than £6 billion. The programme deliberately stretches across a decade, and money still has to be converted into sites, planning permissions, procurement, contracts and starts.
Delivery also depends on the same underlying constraints that affect private development. Land has to be available at a viable price. Planning and infrastructure have to work. Contractors, skilled labour and development-management capacity have to exist when required. Registered providers and councils need balance-sheet headroom to fund their share of costs and to manage the homes once built.
The funding architecture itself recognises that capacity constraint. Homes England assesses bids for value for money, strategic fit and deliverability, while Strategic Partnerships are reserved for organisations able to deliver at scale and CME is available for smaller or more complex opportunities. The policy is not premised on every council rebuilding a vertically integrated housebuilding department; private delivery capability is itself one of the scarce resources the programme is trying to mobilise.
For developers, this is an important distinction. A grant-backed counterparty may make a scheme easier to fund, but it does not remove planning risk, construction risk or the need to deliver to the buyer’s specification. Registered providers are increasingly demanding higher standards and future-proofed stock, which Savills identifies as another reason some Section 106 packages remain difficult to place. Certainty of demand can therefore come with requirements that affect build cost and scheme design.
For councils and registered providers, the reverse is true. More funding creates the ability to commission more homes, but delivery partners with land, consents and construction capacity become correspondingly more important. A decade-long public programme can expand demand faster than the supply chain expands its ability to satisfy it.
Council housebuilding is returning, but the first Strategic Partnership allocations show why that should not be mistaken for a wholesale return to the post-war municipal model. Three councils became Homes England Strategic Partners outside London, while London is putting substantially greater weight behind council-led delivery. Across both systems, private developers remain embedded in the delivery architecture.
For volume housebuilders, that creates a larger potential purchaser for phases that do not have to clear entirely through individual private sales. For regional and SME developers, CME provides a route into grant-supported delivery without requiring a 1,500-home programme. For registered providers, longer-term funding can support earlier land buying and more ambitious development pipelines. For landowners, it creates additional counterparties and a wider range of structures through which a site can be brought forward.
The commercial opportunity is not unlimited. Section 106 stock remains a separate and unresolved market in many areas. Grant is tested for value for money. Public and affordable buyers will not rescue an overpaid site, and a joint venture can exchange the certainty of an immediate land receipt for years of exposure to development performance.
The more important market effect is therefore subtler than “government spends £39 billion and councils build more houses”. The programme can change who absorbs development risk at different stages of a site. Grant can strengthen an RP’s ability to buy land; developer-delivery structures can move construction risk into the private sector while giving the completed homes a defined affordable buyer; council land can become part of a partnership rather than a simple disposal; and bulk affordable demand can reduce dependence on the pace of individual market sales.
That can alter land bids, site phasing, capital recycling and the point at which a development becomes financeable. For developers and landowners, that is the part of the council-housebuilding revival worth watching most closely. The public sector is not simply returning as a competitor with its own building programme. It is becoming a better-funded customer, landowner and development partner operating inside the same market.
For landlords, letting agents and residential investors, the effect is more indirect and highly local. The programme’s ambition includes roughly 180,000 Social Rent homes over a decade, but that does not translate into an immediate national shock to the private rented sector; what matters is whether significant affordable supply is actually delivered in the same local market and at the same rent-sensitive end of demand. Where that capital meets genuinely deliverable land, the effect on local housing supply could be significant. Where planning, viability or Section 106 mechanics remain broken, £39 billion on its own will not be enough.
This article provides general information about housing policy, affordable housing and the property development market. It does not constitute investment, planning or financial advice, or a recommendation concerning any individual funding programme, council, registered provider, site or development structure.
