New Homes Accelerator: help for stalled housing sites

 

The New Homes Accelerator is a government programme for housing sites in England which are delayed or not moving as quickly as they could. Developers, landowners and local planning authorities can submit a site where a real delivery blockage may benefit from government coordination, specialist input or Homes England assistance.

It is not a fast-track planning permission and it is not a way to bypass a refusal, a statutory consultee or a missing technical case. The strongest candidates are sites which could move if a specific planning, regulatory, infrastructure or coordination problem were resolved.

The programme changed materially in January 2026. Sites below 500 homes can now be considered, and the current national submission route is open year-round. That makes the Accelerator potentially relevant to a much wider range of stalled schemes than the original 2024 call for evidence.

 

Who can submit a site?

 

The current government submission guidance is open to developers, landowners and local authorities in England.

• Developer: private developers and other delivery bodies can submit a genuinely stalled or slow-moving site
• Landowner: the owner does not have to wait for the local planning authority to make the approach
• Local planning authority: a council can seek support where capacity, coordination or another obstacle is holding a site back
• London: sites are submitted through the Greater London Authority rather than the national route

The current national guidance does not publish a minimum or maximum number of homes. In January 2026 the government expressly opened the current route without the old 500-home threshold, so smaller sites can be submitted. However, the programme guidance still says the Accelerator will focus on selected large-scale housing developments. A smaller site is therefore eligible to be put forward, but that does not mean it will be selected for support.

Nor does the current guidance state that a site must already have planning permission or be allocated in a Local Plan. The practical test is whether the site is genuinely delayed or not progressing as quickly as it could, and whether Accelerator support could help it deliver homes during this Parliament.

 

What sort of blockage is the Accelerator for?

 

The New Homes Accelerator programme guidance identifies coordination failures, regulatory obstacles and local authority capacity constraints as recurring problems. Government material also refers to infrastructure, utilities and environmental issues.

That makes the programme most credible where the problem crosses organisational boundaries. Examples could include:

• a planning issue which needs coordinated input from several public bodies
• a statutory consultee issue which has become stuck despite the technical work being available
• infrastructure or utilities dependencies which need government-level brokerage
• local authority planning capacity which is preventing a deliverable site from progressing
• a regulatory interface where the right bodies are engaged but progress has stalled

A difficult site is not automatically an Accelerator site. A weak application, unresolved viability case, missing survey, defective design, land-control dispute or simple disagreement with planning policy will normally need fixing through the ordinary planning and development process first.

 

What support can the New Homes Accelerator provide?

 

The published national offer is deliberately broad. Site-specific support can include:

• planning and technical advice
• cross-government brokerage
• assistance from Homes England
• expert support to local authorities and delivery teams
• coordination around regulatory and infrastructure blockages

The government has also reported Accelerator work with the Building Safety Regulator, Natural England, the Environment Agency, Network Rail and National Highways. That matters because the value of the programme may be less about another planning opinion and more about getting the right organisations working on the same blockage.

Homes England is part of the programme and can bring its wider enabling expertise and resources. However, a New Homes Accelerator submission is not itself an application for a Homes England grant or loan.

 

What the Accelerator cannot do

 

This is where government publicity can create the wrong impression. Nothing in the published programme material gives the Accelerator a separate power to overturn the normal planning system.

• it cannot grant planning permission in place of the local planning authority or Secretary of State
• it cannot turn an unacceptable planning proposal into an acceptable one merely because delivery is slow
• it does not remove the statutory duties of Natural England, the Environment Agency, National Highways, the Building Safety Regulator or another public body
• it does not replace a planning appeal or other statutory challenge route
• it does not guarantee that government will intervene after a site is submitted

The official guidance is explicit on the last point: submitting a site does not guarantee follow-up or government support.

If planning permission has been refused, the first question may instead be whether the decision should be addressed through a revised proposal or a planning appeal. If the problem is failure to determine an application, the statutory appeal route may also be more direct than waiting for programme brokerage.

 

Can the Accelerator deal with statutory consultees?

 

Yes, in the sense of coordination and problem-solving. Government says the programme has worked with the Building Safety Regulator, Natural England, the Environment Agency, Network Rail and National Highways, and has used cross-government engagement to deal with wider infrastructure and regulatory issues.

That is not the same as an override. Each body retains the legal functions which apply to it. The Accelerator can convene, escalate and help unblock; it cannot lawfully erase a statutory requirement simply because a site has been accepted into the programme.

The distinction is particularly important where the blockage involves a separate consent, permit or safety gateway. The practical objective is to resolve the issue through the responsible body, not to bypass it.

 

Is funding available?

 

There is no published site-level entitlement to New Homes Accelerator grant funding. The national offer is framed around advice, brokerage and Homes England assistance rather than an automatic pot of money for each accepted site.

Government has separately provided £1 million through the Accelerator to strengthen statutory consultee resources. Homes England also has wider land, infrastructure and finance programmes, but those have their own criteria and should not be treated as automatic benefits of an Accelerator submission.

For a stalled scheme, the useful question is therefore not simply “is there money?”, but whether the blockage is one which government coordination or Homes England involvement can realistically shift.

 

When should a developer or landowner use it?

 

Planning Geek’s view is that a submission is worth considering where four things are true:

1. The site is real: there is genuine control, a credible development proposition and a plausible route to housing delivery
2. The blockage is identifiable: you can explain precisely what is stopping progress rather than simply saying the planning process is slow
3. Normal escalation has been tried: the project team has engaged the council, relevant consultees and infrastructure bodies and can show where progress has stalled
4. Intervention could change the outcome: coordinated government or Homes England involvement could remove the obstacle and allow delivery to move

The Accelerator is less persuasive as a first move on an ordinary planning application. A competent planning strategy, pre-application discussion where useful, complete technical evidence and direct engagement with the responsible body should normally come first.

If those routes have produced a genuine impasse, the programme becomes much more interesting.

 

What should you prepare before submitting a site?

 

The government form asks for site information, but a useful submission should do more than describe the development. Planning Geek would prepare a short evidence pack covering:

• site ownership or control and the delivery parties
• number of homes, phasing and realistic delivery timetable
• current planning status, including allocation, application or permission where relevant
• a dated chronology of the blockage
• key correspondence with the council, statutory consultees and infrastructure providers
• the technical evidence already available
• steps already taken to resolve the issue
• the precise intervention being requested
• why the site could move materially faster if that intervention succeeds

This is not a published mandatory checklist. It is the information most likely to let the programme distinguish a genuinely unblockable site from a development which still has ordinary planning work to do.

 

What has the programme actually unlocked?

 

The most useful published example is Hampden Fields in Aylesbury, a 3,000-home site. The government says the Accelerator worked with Taylor Wimpey, the Environment Agency and Buckinghamshire Council to make progress on Flood Risk Activity Permits needed for development.

A later government update gives a larger figure. As of May 2026, the government said engagement through the Accelerator with statutory consultees and arms-length bodies had unblocked around 81,900 homes to move forward in the planning process. It also confirmed £1 million of Accelerator funding had been provided to strengthen statutory consultee resources.

These are government programme figures rather than an independent assessment, but they show the scale and type of cross-body intervention the Accelerator is intended to make.

 

London has a separate route

 

Sites in London are handled through New Homes Accelerator London. NHA LDN focuses on developers with stalled or slow-moving sites, while ATLAS LDN provides planning capacity and expertise to London boroughs.

The GLA says both services are available at no cost to participants. London support is aimed at sites which could deliver homes by summer 2029 if the relevant barriers are removed. NHA LDN welcomes relevant submissions but says it is particularly interested in sites with more than 100 homes, especially unimplemented permissions and schemes which have started but are stalled or building out slowly.

Outside London, use the national MHCLG route.

 

Is there a fee?

 

The current government guidance does not identify a charge for submitting a site to the New Homes Accelerator. That does not remove normal private professional costs or the statutory fees which may apply to a planning application or other consent.

For current application charges, see our guide to planning application fees.

 

Should you use the New Homes Accelerator?

 

Use it as an escalation tool, not as a substitute for a planning strategy. If your problem is simply that the proposal is contrary to policy or the application is missing evidence, the Accelerator is unlikely to rescue it. If a deliverable housing site is genuinely stuck between public bodies, regulatory processes, infrastructure requirements or planning capacity constraints, it may be exactly the sort of case the programme was designed to tackle.

For developers and landowners, the commercial value is in diagnosing that difference early. Planning Geek can help review the planning position, identify the actual blockage and decide whether normal planning escalation, an appeal or a New Homes Accelerator submission is the better next move.

 

New Homes Accelerator official guidance

 

• MHCLG New Homes Accelerator programme guidance
• Apply for support through the New Homes Accelerator
• January 2026 phase two announcement and examples
• Government response on statutory consultee reform and Accelerator resourcing
• Greater London Authority housing delivery and capacity support

Other Planning Policy Sections

 

New Homes Accelerator Page Created: 19th September 2026