Key takeaways
- On October 30, 2026, the UK government said its AI planning tool PlanAssist will expand from 3 to 15 councils in England for a 12-month test, with the aim of offering it to every council in England by the end of 2027.
- PlanAssist checks documents, constraints such as tree preservation orders, local and national policy and past objections, then drafts a cited report that a planning officer edits and decides on.
- The government says early testing cut time on key tasks by 58%, helping halve routine householder processing times from eight weeks to four, but no method for those figures was published.
- From October 31, a separate rule means straightforward applications in England are decided by planning officers rather than councillor committees.
- Councils are not required to use PlanAssist, and officers, not the AI, make the decision.
England's ai planning permission tool is getting a much bigger test. On October 30, 2026, the Ministry of Housing, Communities and Local Government said PlanAssist, built with Google DeepMind, Google Cloud, Faculty and councils, will grow from a trial in Camden, Barnet and Dorset to 15 councils for 12 months, with the intention of making it available to every council in England by the end of 2027 (GOV.UK).
This is one of the clearest examples yet of an AI agent doing real paperwork inside a property process. Extensions, loft conversions and small housing schemes all wait on these decisions, so the news matters to homeowners, builders, investors and the agents who sell their homes. It also drew attention: in our count of X posts mentioning PlanAssist or AI with planning applications, daily volume went from no more than 5 on October 25 to 30 to 287 on October 31 (UTC days).
What PlanAssist actually does
Four jobs before an officer decides
PlanAssist is built on Google's Gemini model, according to National Construction News. Google DeepMind says it works through a householder application in steps. It checks that the documents and drawings are valid, checks constraints such as heritage designations and tree preservation orders against local and national policy, looks at earlier objections, and then drafts a fully cited report that the planning officer edits (Google DeepMind).
The officer keeps the decision
The government says officers use PlanAssist alongside the normal process and that councils will not be made to adopt it (GOV.UK). National Construction News reports that the project was previously called Augmented Planning Decisions, sits on an £8.2 million government contract, and that Faculty says it recommends accept, accept with conditions or decline (National Construction News).
Google DeepMind's Owen Larter said the tool "puts AI to work by freeing planning officers to spend more time deciding on applications and less time on administrative paperwork", according to the government release (GOV.UK).
The numbers behind the headline
| Claim | Source | Caveat |
|---|---|---|
| 58% less time on key tasks in early testing | GOV.UK; DeepMind says average officer time on householder assessment tasks | Task time, not whole decision time |
| Helped halve routine householder processing times from eight weeks to four | GOV.UK | No method published, per National Construction News |
| More than 70% of generated reports approved with no edits | Google DeepMind | Company figure from the pilot |
| Householder applications are nearly 70% of applications each year | GOV.UK | Explains the focus on householder cases |
Planning Geek, a planning news site, stresses that a 58% cut in task time "does not establish a 58% fall in the total time required to determine an application", because consultations, amendments and legal agreements still take time (Planning Geek). National Construction News adds that "no methodology for that figure was published with the release" (National Construction News).
Which councils are in the trial
The 12 new councils are Ashford, Lambeth, Newcastle, Nottingham, Bristol, Cumberland, North Lincolnshire, Rochdale, Redbridge, South Gloucestershire, Stoke-on-Trent and Westminster, joining Camden, Barnet and Dorset (GOV.UK). Google DeepMind describes the next stage as a 12-month beta on live applications, with councils joining in three groups, and says wider availability in 2027 depends on testing (Google DeepMind).
The government also plans to have planning documents digitised and published as open data by the end of 2027, which it says will support property technology tools more broadly (GOV.UK).
A second change started the next day
Separately, a National Scheme of Delegation took effect on Saturday, October 31, so straightforward applications are decided by planning officers instead of councillor committees. The government also says it has recruited 420 planners, against a manifesto pledge of 300 (GOV.UK). Housing Secretary Angela Rayner said: "Families wanting more space and businesses looking to grow shouldn't be left waiting unnecessarily for straightforward planning decisions." Planning Geek warns it would be misleading to credit every future speed-up to PlanAssist, since the delegation rules and new staff also play a part (Planning Geek).
What we did not verify
We have not used PlanAssist and could not check the 58%, eight-to-four-week or 70% figures independently. We tried to open a parliamentary written answer on the first trial and the page did not load, so we have not relied on it. PlanAssist applies only to councils in England; we found nothing about similar tools in Canada or the United States.
What this means for small businesses
For agents, small builders and investors in the trial areas, faster householder decisions could shorten the gap between buying a property and starting work. For everyone else, it is a preview of how AI agents will handle routine property paperwork.
- Send complete applications. PlanAssist's first step is checking documents and drawings. Get like-for-like builder prices with our contractor quote comparison prompt and turn survey findings into a short list with the inspection report prompt.
- Check constraints early. Tree preservation orders, heritage status and past objections are exactly what the tool looks at, so look first. Our building access and permits prompt helps you list what each job needs.
- Do not promise four weeks. The halving claim is not a service standard. Build realistic timelines into an investor deal summary.
- Describe approvals accurately when you sell. If a home has consent for an extension, say so plainly using the listing description prompt builder, or explain it in a for-sale-by-owner guide.
- Measure your own paperwork. If AI can cut task time for planners, estimate what it could save your office with the AI time savings calculator.
Frequently asked questions
What is PlanAssist?
An AI tool for council planning officers, built with Google DeepMind, Google Cloud, Faculty and councils, that checks householder applications and drafts a cited report (GOV.UK, Google DeepMind).
Does AI decide planning permission in England?
No. The government says officers use PlanAssist alongside the normal process and councils are not required to use it (GOV.UK). DeepMind says officers edit the draft reports (Google DeepMind).
Which councils use PlanAssist?
Camden, Barnet and Dorset, plus 12 more: Ashford, Lambeth, Newcastle, Nottingham, Bristol, Cumberland, North Lincolnshire, Rochdale, Redbridge, South Gloucestershire, Stoke-on-Trent and Westminster (GOV.UK).
Will AI make householder planning decisions faster?
The government says early testing helped halve processing times for routine householder applications from eight weeks to four, but National Construction News notes no method was published (National Construction News).
When will every council get PlanAssist?
The government intends it to be available to every council in England by the end of 2027 (GOV.UK); DeepMind says that depends on testing (Google DeepMind).
Sources
- GOV.UK: Faster planning decisions as new rules and AI tackle delays
- Google DeepMind: Speeding up planning decisions with AI
- National Construction News: Officers take over routine planning decisions as PlanAssist AI test grows to 15
- Planning Geek: PlanAssist council trials expand to 15 areas
How we report: every fact, number and quote above comes from the linked sources, which we read before publishing. Product details can change quickly during previews, so check the vendor page before you buy. Spotted an error? Tell us via the link on our home page.