The ALIGN planning tool will let government and planning authorities test growth scenarios against infrastructure capacity across England.
MHCLG Digital unveiled ALIGN on 29th September 2026. The cross-government tool is being led by the National Infrastructure and Service Transformation Authority, NISTA, and MHCLG’s Digital Planning programme as part of the Government’s wider shift towards spatial infrastructure planning.
Its promise is significant, but so are the caveats. The ALIGN planning tool is intended to provide evidence, not make planning decisions, and the Government has not made use of the tool a statutory plan-making requirement. Options for a phased rollout are still being considered during the current financial year.
What the ALIGN planning tool actually does
The ALIGN planning tool brings together infrastructure data, spatial models and digital tools in one place so that different growth scenarios can be tested against existing and planned capacity.
MHCLG gives a simple example. If an area is being considered for 10,000 homes plus new commercial floorspace, the models can estimate the additional electricity and water demand and compare it with planned capacity. The same approach is intended to help test employment growth and other land-use scenarios.
The scope is wider than two utilities. Government material identifies energy, water and wastewater, transport, flood risk and digital telecoms among the systems covered. The current announcement also refers to community services and environmental considerations.
A separate Government Analysis Function case study says the spatial models provide local projections of infrastructure capacity and need across a range of systems and metrics up to 2035 and, for some measures, 2050.
That does not mean ALIGN has a definitive answer to every infrastructure question. The public material does not yet explain the spatial resolution of every dataset, how frequently each source will be refreshed or how local evidence will be reconciled where it conflicts with a national model.
The problem Government says it is trying to fix
Infrastructure evidence is rarely produced in one place. Electricity networks, water companies, transport bodies, health and education providers, environmental regulators and planning authorities all work with different datasets, assumptions, investment cycles and administrative boundaries.
MHCLG says that evidence is often siloed and fragmented. Two neighbouring authorities can therefore be looking at the same growth corridor while relying on evidence prepared at different times, using different assumptions and for different purposes.
That fragmentation has practical consequences for plan-making. Authorities may commission separate infrastructure studies, update them at different stages and then have to reconcile the findings with evidence from infrastructure providers. Government says the ALIGN planning tool could reduce reliance on multiple commissioned studies by providing a common spatial evidence base.
The 10-Year Infrastructure Strategy set the direction in June 2025. It committed Government to a more spatial approach to infrastructure planning and said NISTA would lead a national infrastructure spatial tool to integrate evidence across housing, energy, transport and other sectors.
Why this could matter for Local Plans and Spatial Development Strategies
For planning practitioners, the most important part of the ALIGN planning tool is not the technology. It is the possibility of a common evidence base feeding into plan choices before sites and growth locations become fixed.
Planning Geek’s guide to Local Plans explains how strategic choices have to be supported by proportionate evidence. The new Spatial Development Strategy tier is designed to operate across local authority boundaries, where infrastructure constraints rarely respect council borders.
MHCLG says ALIGN is intended to support both. At local and strategic level, the ALIGN planning tool is expected to provide consistent infrastructure capacity metrics so authorities can compare growth and delivery scenarios and understand where further infrastructure or coordination may be required.
This is particularly relevant where the planning issue is not whether growth is desirable in principle, but whether the networks needed to serve it can be expanded in time. An allocation that works on a housing trajectory may look very different once electricity connection dates, water supply, wastewater capacity or transport constraints are added.
The revised national policy context points in the same direction. NPPF Chapter 10 now expects early engagement on energy, water, drainage and wastewater capacity during plan-making, while Chapter 15 says transport should be considered from the earliest stages.
Electricity, water and transport can change the growth answer
The attraction of the ALIGN planning tool is that infrastructure constraints can be tested together rather than as separate late-stage problems.
Electricity is an obvious example. A housing or employment allocation may be acceptable in land-use terms but still depend on reinforcement of the local distribution network or a connection programme outside the planning authority’s control.
Water creates a different set of questions. Supply may be constrained by resource availability while wastewater treatment and network capacity can impose separate limits. A national model may help flag those issues earlier, but detailed delivery still depends on the relevant water company, regulator, investment programme and local evidence.
Transport is equally sensitive to scale and location. Ten thousand homes in one growth location can create a very different pattern of rail, bus and highway demand from the same number dispersed across a wider area.
The ALIGN planning tool’s value, if the modelling is transparent and current, is in allowing those interactions to be explored before an authority has invested heavily in one preferred spatial option.
ALIGN is evidence, not a planning decision-maker
MHCLG is explicit on this point: “ALIGN doesn’t make planning decisions.”
The distinction matters because infrastructure models are only part of the evidence needed for a Local Plan or Spatial Development Strategy. Local knowledge, deliverability, viability, environmental effects, land availability, policy choices and consultation evidence still have to be weighed.
Nor does the reference to artificial intelligence turn ALIGN into an automated planning system. The Government describes AI as one component within a platform that combines data, models and tools. It has not published enough detail to show precisely which outputs rely on AI, which are conventional modelling and which are direct presentations of source data.
That is a sensible area for practitioners to probe. If a model is going to influence strategic decisions, users will need to understand the assumptions, source dates, confidence limits and ability to challenge or override an output with better local evidence.
How far has ALIGN actually got?
The ALIGN planning tool is not simply a concept. NISTA says the tool is already being used to support central government and work with regional and local partners. In its July 2026 annual report, NISTA chief executive Becky Wood said it “helps national, regional and local partners test infrastructure constraints against real growth scenarios”.
But general access is not yet settled. The latest MHCLG announcement says options are being considered for a phased rollout of the tool and its data during the 2026 to 2027 financial year.
There is a small but important timetable wrinkle. The Government’s roadmap for modern digital government lists November 2026 as the point for a private beta of the national infrastructure spatial tool. The newer 29th September announcement is more cautious, so November should be treated as a target rather than a confirmed universal access date.
MHCLG also says a webinar later this year will provide more information about the ALIGN planning tool, its data and its models. That is a useful signal that important practical detail is still to come.
The Planning Advisory Service and Local Government Association SDS readiness guide is already pointing authorities towards national tools such as NISTA ALIGN rather than rebuilding the same capability locally. It also stresses the need to record who owns a dataset, where it came from, when it was last updated and any warnings or caveats. Those details will matter if ALIGN outputs are to carry real weight in plan evidence.
What practitioners should watch next
- Who gets access first and whether local planning authorities can use the ALIGN planning tool directly
- Which datasets sit behind each infrastructure layer and how often they are refreshed
- How model assumptions, uncertainty and confidence ranges are exposed to users
- Whether outputs can be exported with a clear audit trail for plan evidence and examination
- How national modelling will sit alongside utility-provider evidence and more detailed local studies
The potential prize is clear. A shared evidence base could make it easier to compare growth choices across boundaries and identify infrastructure problems earlier, rather than discovering them after a preferred strategy has hardened.
But the ALIGN planning tool should not be oversold. At this stage it is an evolving evidence tool with a phased rollout still under consideration. It may reduce duplicated work and improve consistency, but it does not remove the need for infrastructure providers, local evidence, plan-making judgement or examination scrutiny.
0 Comments