AI tool cuts UK planning review time by more than half
A government pilot already cut planning review time by more than half, with a human still signing off.
This is worth watching because it is a working example of AI actually saving hours of government paperwork, not just a promise, which is exactly the kind of proof he should want before putting his own time into similar AI bets. The UK government and Google DeepMind (Google's AI research lab) have built a tool called PlanAssist that cuts the time a planning officer spends reviewing routine home-renovation applications by up to 58 percent, more than half. It is now being rolled out to 12 more local councils across England, on top of the three that piloted it.
Routine applications, things like a loft conversion, a conservatory, or a small extension, make up as much as 70 percent of a planning officer's workload, even though they are usually simple to approve. That backlog has a real cost. It slows the UK's push to build 1.5 million new homes by 2029, and for an ordinary family it can mean months of waiting just to get a green light on something small.
PlanAssist, built with Google's Gemini AI model and developed by Google DeepMind together with the UK government, Google Cloud, and Faculty, gives planning officers automated support with processing applications and drafting assessment recommendations, checking things like whether an application complies with local planning rules and whether the applicant has submitted all required documents. A human planning officer reviews and signs off before any decision is made, keeping the final say on every application.
Since June, the pilot ran in three councils, Barnet, Camden, and Dorset, and more than halved the time officers spent on each assessment. More than 70 percent of the reports PlanAssist drafted were approved by officers with no edits at all. The tool is now moving into a 12-month test phase using live, real applications. Twelve more councils will join in three waves, bringing the total to 15. If that testing goes well, the government plans to offer PlanAssist to every council in England by 2027, still with a qualified officer reviewing and approving every single decision before it takes effect.
Worth watching for him: this is a template for cautious AI leverage done right, a narrow, repetitive task handed to AI with a human sign-off kept at the end, rather than a dramatic full handoff.
PlanAssist has shown it can cut the time planning officers spend assessing householder applications by up to 58%.via Google DeepMind →