09/11/2026
The Government has made no secret of its ambition to get Britain building. However, with development viability continuing to present difficulties across the sector, delivering 1.5 million homes during this Parliament remains an ambitious undertaking.
The Autumn Budget, delivered on 28 October 2026, introduces further measures aimed at removing barriers to development and accelerating the planning process. However, with the Office for Budget Responsibility reducing its housing supply forecast by 190,000 homes over the forecast period, questions remain as to whether these measures will be enough.
So, will the Government’s latest announcements actually make a meaningful difference on the ground, or will the gap between planning ambition and housing delivery remain?
Affordable Housing: will additional funding translate into delivery?
For developers, the real question is not simply how much additional funding is being made available, but whether it will actually help get stalled schemes moving.
The Budget provides a further £1.5 billion for social and affordable housing, intended to deliver approximately 10,000 additional homes. Whilst welcome, this comes at a time when developers continue to face difficulties securing Registered Providers to acquire affordable housing units under section 106 agreements.
Although this investment may alleviate some of these pressures, the terms on which Registered Providers are prepared to acquire affordable housing will remain critical to scheme viability, particularly where delays could affect cashflow and the delivery of market housing.
The Government’s £4.7 billion Your First Home equity loan scheme also seeks to stimulate demand for new-build homes. Whilst this may support sales rates and improve developer confidence, whether it is enough to impact overall scheme viability remains to be seen.
For developers and local planning authorities, the additional funding may provide an opportunity to reconsider the deliverability of affordable housing requirements on stalled schemes, including whether existing tenure arrangements and section 106 obligations remain appropriate. Ultimately, the funding is a welcome step, but its success will depend on whether it is sufficient to overcome the ongoing affordability issues which blight buyer demand and continue to cause concern for investors and developers alike..
Brownfield development: will BNG relief tip the balance?
One of the Budget’s more practical measures for developers is the proposed exemption from Biodiversity Net Gain (BNG) requirements for residential development on brownfield sites of up to 1.5 hectares in England.
For smaller schemes, this could offer welcome cost savings, particularly where limited opportunities for on-site habitat improvements would otherwise require developers to purchase off-site biodiversity units or statutory credits.
However, the exemption is not yet in force, and further detail is awaited on its implementation and the definition of qualifying brownfield land. Developers will also need to remain mindful of other environmental requirements, which will continue to apply.
Of course, BNG is only one consideration when assessing the viability of brownfield development. The costs of bringing previously developed land back into use can be substantial, particularly where remediation is required. Whilst the proposed exemption will improve the viability of some schemes, it may not be enough to make an otherwise unviable development deliverable.
Planning efficiency: freeing up capacity where it counts
The Budget places further emphasis on improving the efficiency of the planning system, with the Government committing to make its PlanAssist AI tool available to all councils in England by the end of 2027, subject to further testing taking place.
The tool is designed to assist planning officers with routine applications by reviewing submitted documents against relevant planning policies and site constraints before producing an initial assessment for officers to consider. Early trials have reportedly reduced the time spent on certain planning tasks by 58%, although responsibility for decision-making will ultimately remain with planning officers.
For local planning authorities, reducing the administrative burden associated with routine applications could free up valuable officer time to progress more complex schemes, where delays can have significant financial implications for developers. This builds on the £48 million committed by the Government in 2025 to strengthen planning capacity and support the recruitment of additional planning officers, although it will inevitably take time for these resources to be fully embedded within local authorities.
The Budget also confirms that key planning documents will be required to be digitised and published as open data by the end of 2027, therefore supporting the wider adoption of AI within the planning system.
Whilst these measures are encouraging, technology alone cannot resolve the more complex issues which delay major schemes. The real test will be whether these efficiencies translate into more timely decisions on housing and infrastructure applications.
Data centres and infrastructure: balancing competing demands
For data centre developers, access to grid capacity is just as important as securing planning permission. The Budget seeks to address this through the introduction of a new Data Centre Covenant, a policy framework setting out the commitments developers must meet to qualify for enhanced support for strategically important projects.
Under the Covenant, qualifying developers may receive assistance in securing earlier grid connections in return for commitments to benefit local communities and reduce environmental impacts. This includes Local Benefit Plans, which commit developers to investment beyond existing section 106 and Community Infrastructure Levy requirements, although exactly how these commitments will be secured and enforced remains unclear.
Separately, the Government has published a draft National Policy Statement for Data Centres, intended to provide a clearer framework for determining whether a data centre application is likely to be regarded as nationally significant and suitable for direction bringing it within the nationally significant infrastructure planning regime.
More broadly, the Budget also confirms that an updated Infrastructure Pipeline, setting out over £750 billion of planned investment over the next decade, will be published before the end of the year. This should provide greater visibility of future projects and support longer-term investment decisions across the infrastructure sector.
Whilst these measures could help accelerate data centre development, they also raise questions about how limited grid capacity will be allocated between competing projects. For the wider development sector, including housing, the practical implications of prioritising strategically important data centres will be an important consideration.
Conclusion: will the Budget deliver?
The Autumn Budget offers some welcome measures to help unlock development, but the real question is whether they will make enough of a difference where it matters…on the ground!
Faster planning decisions and reduced regulatory burdens are undoubtedly positive steps. However, for developers facing significant viability pressure, the fundamental question remains whether the numbers stack up. Without addressing these underlying commercial challenges, there is a risk that even well-intentioned reforms will have a somewhat limited impact on housing delivery.
For developers and local planning authorities, much will depend on how the announcements translate into practice and whether they provide the certainty needed to bring stalled schemes forward. Ultimately, the success of the Budget will be measured not by the ambition of its announcements, but by the homes that actually get built.
