Google DeepMind's Plan Assist AI tool has cut planning officer assessment time for householder applications by up to 58% in early pilots across Barnet, Camden, and Dorset. The tool, built with Gemini, is expanding to 12 more local planning authorities across England, bringing the total to 15 councils in a 12-month Beta phase using live applications.
Plan Assist handles routine checks for householder applications—such as loft conversions, conservatories, and extensions—which account for up to 70% of planning officers' workloads. It validates documents and drawings, checks heritage constraints and planning policies, reviews past objections, and drafts cited reports that officers can edit before making final decisions. In pilots, more than 70% of AI-generated reports required no edits from officers.
The UK government plans to make Plan Assist available to all councils in England by 2027, supporting the goal of building 1.5 million new homes by 2029. The rollout follows successful early testing and aims to reduce planning bottlenecks that delay home improvements and slow progress toward national house-building targets. Every assessment will remain reviewed and approved by a qualified planning officer before any decision is made.
Source: Google DeepMind Blog · Summarized by HeadlinesBriefing