A loft conversion can mean a long wait for a council decision. PlanAssist aims to shorten the paperwork behind it. In announcements on 30 and 31 October, the UK government and Google DeepMind set out an expansion of the AI planning assistant from three English councils to a 15-council trial.
Based on 3 reviewed sources · See sources
The officer still decides
Built with Gemini, Google’s AI models, PlanAssist checks submitted documents and drawings, brings together relevant planning rules and site constraints, and drafts a report with source citations for an officer to review. DeepMind developed it with the government, Google Cloud and Faculty.
The developer’s account describes checks for heritage restrictions and earlier objections, alongside document validation. A cited draft gives an officer something to inspect and edit; it does not grant permission. The housing ministry says officers retain responsibility and will use the tool alongside their normal process.
DeepMind demonstrates its planning-assessment assistant and announces access for 12 additional councils. The post’s time-saving figure is a pilot claim.
View the original post on X ↗Two different clocks
DeepMind reports a 58% average reduction in officer time on householder assessment tasks during early testing in Barnet, Camden and Dorset. Its announcement post uses “up to 58%”. It also says officers accepted more than 70% of generated reports without edits. Those are developer-reported pilot findings, rather than an independent evaluation of every application or a measure of error-free decisions.
The government’s release goes further, linking the task saving to routine processing falling from eight weeks to four. Those elapsed weeks and an officer’s assessment time are different measures. Neither inspected announcement supplies the application counts or a full evaluation method needed to isolate the tool’s contribution. The same government release also describes extra planners and changes to who decides straightforward applications.
A year of live applications
The next phase is a 12-month beta using live applications, with 12 additional councils joining in groups. DeepMind makes wider availability conditional on successful testing; the government intends to offer the tool across England by the end of 2027 and says it will not be mandatory software.
For residents, the useful result would be a quicker, well-founded answer about their home. The expanded trial now has to show how an encouraging paperwork result holds up across more councils and real cases.
Sources
- Speeding up planning decisions with AI
Google DeepMind · Announcement ·
- Faster planning decisions as new rules and AI tackle delays
UK Ministry of Housing, Communities and Local Government · Announcement ·
- PlanAssist expansion — original announcement and demonstration
Google DeepMind · X · Announcement ·
Written with AI assistance from the sources above. Analysis and practical implications are our interpretation. Our editorial approach.
