City planning has always been hard to communicate. An engineer knows what a new bridge will look like. The public doesn’t — until construction starts and everyone’s annoyed about it. The design team knows where the drainage pipes conflict with the metro extension. The project manager won’t find out until month four. Spatial computing is slowly fixing both of these problems, and the adoption is moving faster than most people outside the sector realise.
What urban planners actually use
The headline tool is the digital twin: a real-time, data-connected 3D model of a city or a defined area within it. But “digital twin” covers a range of things, from a well-maintained 3D GIS model to a genuinely live simulation fed by sensor data, traffic flows, and weather inputs.
Singapore’s Virtual Singapore project, now well into its operational phase, is probably the most cited example — a city-scale 3D model with attributed data down to individual buildings, terrain, and underground infrastructure. Planners use it to model solar exposure across rooftops for renewable energy planning, simulate air circulation for urban heat island analysis, and route emergency services access. It’s not augmented reality in the headset sense, but it’s the foundational data layer that AR field tools pull from.
What’s newer is the AR layer on top. Engineers on construction sites can pull up a Microsoft HoloLens or an iPad with an LiDAR overlay, point it at the ground, and see the approved utility routing, the existing drain positions, and the proposed new slab thickness — all registered to real-world coordinates. The gap between the model and the site gets caught in the field, not in a dispute months later.
Where UK cities are putting this to work
Bristol and Liverpool are among the UK councils investing in city digital twins through the Geospatial Commission’s Connected Places programme. The use cases skew practical rather than futuristic: checking whether a proposed cycle lane conflicts with existing telecoms ducts, visualising the shadow impact of a proposed building on nearby streets, or mapping flood risk zones with updated drainage data.
Transport for London uses a maintained 3D model of the network for ventilation modelling and evacuation planning — the kind of work where getting the geometry right matters and where physical mock-ups are impractical.
On the construction side, Highways England (now National Highways) has piloted AR-assisted inspection workflows where surveyors use tablet overlays to compare as-built conditions against the design model in the field. The result is faster sign-off and earlier detection of deviations from spec.
Public consultation is the sleeper use case
Here’s the thing about urban planning: a lot of the time, the technical question is answerable. The political question is harder. A new residential block at five storeys gets approved or rejected partly based on whether local residents can visualise what it’ll look like from the street.
That’s where consumer-grade AR is quietly becoming a planning tool. Bristol City Council ran a consultation using a QR-code-triggered AR experience where residents could point their phones at a site and see a proposed development overlaid at scale. The feedback quality was noticeably better than paper plans: people asked different questions, challenged different assumptions, and reported higher confidence that they understood what was being proposed.
The technology is straightforward — WebXR or an app-based AR anchor registered to GPS coordinates. The cost is now low enough that smaller councils can commission it as part of standard planning applications for major developments.
The coordination problem AR actually solves
Urban infrastructure projects have a nasty coordination problem: multiple contractors, multiple utility owners, multiple council departments, and designs that were last updated before the most recent survey. The result is an almost universal experience among UK infrastructure engineers: you get on site and find something that isn’t on the drawings.
AR helps here not because it’s magic but because it makes the conflict visible before the hole is dug. Point a device at a corridor of ground and see the overlaid routing for telecoms, water, gas, and electricity — all from the current digital records. You’ll still find anomalies, but you’ll find them at the desktop coordination stage, not the site stage where changes cost ten times as much.
This is the value proposition that ESRI ArcGIS Reality and similar tools are selling to local authorities and utility companies. It’s not glamorous but it’s real.
What the tools look like in 2026
For professionals working in this space, the toolkit has consolidated around a few layers. On the data side, CityGML and IFC remain the dominant exchange formats; open standards work is ongoing to make them interoperate better. On the visualisation side, ESRI’s Reality Suite, Bentley Systems’ infrastructure digital twins, and Autodesk Forma sit at the enterprise end. For field AR specifically, Trimble’s mixed reality tools have found traction in civil engineering.
For local authorities without big software budgets, the open-source path is increasingly viable. QGIS with 3D view, combined with Felt for web-based sharing, can cover the core planning visualisation need at much lower cost than proprietary platforms.
Apple Vision Pro has entered the conversation for planning review meetings — a small number of architecture and planning firms are using it for design review sessions where stakeholders can walk through a proposed space at 1:1 scale. The cost and the 2-hour battery still limit this to high-value design decisions rather than routine planning work.
The honest assessment
Spatial computing isn’t going to replace planning committees or resolve political disputes about density and green belt. What it does is raise the quality of the technical conversation, catch conflicts earlier, and make it easier for non-specialists to engage with proposals in a meaningful way. In a planning system that’s visibly struggling with delays and poor community engagement, those are useful gains — even if they’re incremental rather than transformative.
The cities that are furthest ahead aren’t necessarily the richest or the most tech-focused. They’re the ones that started with a clear problem — coordinating utility works, improving consultation quality, reducing construction defects — and bought the technology to fix that problem rather than the technology that looked most impressive in a vendor demo.