Urban Decoders
Start a twin
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Platform

One base. Options that combine.
A twin that grows with the decision.

Every twin starts from the same context model and web explorer. Options are independent modules you add in any order, so a site study can stay small and a city twin can run everything, live. This page lists what is in the base, what the twin can do, and how it gets built and delivered.

Base · always included

The context model and web explorer.

A georeferenced base in a stated CRS, cleaned from GIS, open data and whatever you already hold, served as a web explorer anyone can open from a link. Everything else sits on top of it.

In the base package
  • Context layers. Terrain, building footprints with heights, parcels, transport networks and planning constraints, in EPSG:27700 for UK work or the CRS you state.
  • Site or scheme massing. Your masterplan or a first capacity model placed on the base, with GFA, coverage and mix reported.
  • Web explorer. Layers, storylines and points of interest, no install, any device, hosted on your domain or ours.
  • Custom markers and icons matching your brand or the authority's map style.
  • Feedback endpoint wired to the mailbox you nominate.
  • Full handover. The model, the data and the site archive are yours. No third-party lock-in.
How it gets built

Two production pathways.

Pathway 1 · fastest

From what you already hold

You have GIS, a BIM or Rhino model, a masterplan drawing set or existing renders. We georeference and clean them into the base and build the explorer around them.

  • IFC · RVT · 3DM · DWG · SKP
  • GeoJSON · GPKG · SHP · CityGML
  • Point clouds · photogrammetry · 3D Tiles
  • First twin in 3 to 6 weeks
Pathway 2 · from the brief

From a boundary and open data

No model yet. Send a site boundary and the question. We assemble context from OS, OSM, LiDAR, planning portals and operator feeds, then generate the first massing options with you.

  • Red-line PDF · GeoJSON · DXF boundary
  • OS Open · OSM · Environment Agency LiDAR
  • Council GIS · planning portal · TfGM feeds
  • First twin in 4 to 8 weeks
Capabilities

What the twin can do.

Sixteen tools that ship inside the explorer, each recorded in our Stockport East twin. Hover a tile to play it. Every tool runs on the same georeferenced base, so a measurement, a shadow and a bus route all agree.

First-person walkthroughs in the Stockport East twin
Move through itFirst-person walkthroughsWalk the street at eye level, from any door to any corner.
Drone walkthroughs in the Stockport East twin
Move through itDrone walkthroughsFly the site freely or on a scripted path with a saved route.
Minimaps in the Stockport East twin
Move through itMinimapsA live plan view that tracks where you are and where you are looking.
Section tools in the Stockport East twin
Move through itSection toolsCut the model on any plane to read the ground, the levels and the services.
Dynamic sun control in the Stockport East twin
Light and climateDynamic sun controlSet date and time and watch the shadows move across the site.
Dynamic weather in the Stockport East twin
Light and climateDynamic weatherRain, fog, snow and cloud states for atmosphere and for review.
Solar analysis in the Stockport East twin
Light and climateSolar analysisIrradiance and sunlight hours on facades, roofs and public space.
Viewshed analysis in the Stockport East twin
Light and climateViewshed analysisWhat can be seen from any point, and what a scheme takes away.
GIS data in the Stockport East twin
Data on the modelGIS dataParcels, constraints, terrain and utilities in a stated CRS.
Urban data in the Stockport East twin
Data on the modelUrban dataPopulation, land use, footfall and air quality as layers you can query.
Transportation data in the Stockport East twin
Data on the modelTransportation dataRoutes, stops, timetables and live GTFS-RT positions.
POI data in the Stockport East twin
Data on the modelPOI dataPlaces, amenities and landmarks with distances and media.
Design configurators in the Stockport East twin
Design and presentDesign configuratorsMassing, facade and material options on live sliders with the numbers attached.
Measuring tools in the Stockport East twin
Design and presentMeasuring toolsDistance, area and height read straight off the model in metres.
Custom galleries in the Stockport East twin
Design and presentCustom galleriesRenders, photos, panoramas and video pinned to the place they show.
Night scenes in the Stockport East twin
Design and presentNight scenesStreet and facade lighting after dark, for the night-time economy and safety reviews.
Where it runs

From a committee screen to an exhibition booth.

Web

One link. Opens in any browser on any device, no install, works on slow connections.

Committee and video calls

Driven live in the room or over Teams, so the officer can answer the question by moving the model.

Media table and kiosk

A large touch surface for consultation events, exhibitions and visitor centres.

Headset and ops wall

VR for launches and public events. An operations wall for the place once it runs.

Scope estimator

Scope your twin in a minute.

Set the extent and the layers. You get a tier, an indicative timeline and the modules involved. No prices, because the price follows the scoping call.

42 ha
≈ 900
Level of detail
Live city feeds
Scenario comparison
Public engagement module
Delivery
Indicative scope
DistrictTier 2 of 3
First twin6 to 8 weeks
BaseContext, massing, mobility, web explorer
AddedLive feeds, scenario compare
Next stepSend your GIS extent
Book a scoping call

Tiers: Site under 5 ha, District to 100 ha, City above. Timelines are bands for a first working twin, not a delivery programme.

What you own

The model, the cleaned data and the site archive are handed over. Host it with us, on your own domain, or inside the authority's estate.

Handled properly

CCTV is processed to anonymised counts, never faces. Every feed sits under the data owner's terms. Built for public-sector procurement, security review and audit.

Kept current

A maintenance agreement keeps the twin synced to the plan and the feeds after launch, so it never drifts from the thing it represents.

Start a twin

Send us a site boundary. We'll send back a scope.

A GeoJSON, a DXF or a red-line PDF is enough to start. We come back with a tier, a timeline and the layers your decision needs.

Start a twin See the work