---
id: twins/nsw-spatial-digital-twin
about:
  depiction: twins/nsw-spatial-digital-twin.jpg
  label: NSW Spatial Digital Twin
  description: >-
    DCS Spatial Services, the New South Wales government's spatial data
    authority, runs a 3D and 4D visualisation platform and data-sharing portal
    for the state, used by agencies and councils for planning, asset management
    and emergency response.
  tags:
    - New South Wales
    - state government
    - 3D visualisation
    - spatial data
    - collaboration portal
twin:
  place: 'New South Wales, Australia'
  scale: region
  operational: operational
  homepage: >-
    https://www.nsw.gov.au/departments-and-agencies/spatial-services/publications-and-reports/nsw-spatial-digital-twin
open:
  source: unknown
  data: partly
  api: 'yes'
  participation: partly
  note: >-
    The SDT Explorer viewer is free to use; the Spatial Collaboration Portal
    holds 1,000+ datasets with API access and downloads subject to the sharing
    permissions each data owner sets.
domains:
  - places
provenance:
  origin: agent
  sources:
    - title: NSW Spatial Digital Twin | NSW Government
      url: >-
        https://www.nsw.gov.au/departments-and-agencies/spatial-services/publications-and-reports/nsw-spatial-digital-twin
    - title: >-
        NSW Spatial Digital Twin: Product and Services Catalogue (NSW Digital
        Twin 25, PDF)
      url: >-
        https://www.nsw.gov.au/sites/default/files/noindex/resources/NSW-Digital-Twin-25.pdf
    - title: Spatial Services | NSW Government
      url: 'https://www.nsw.gov.au/departments-and-agencies/spatial-services'
  created: '2026-10-18'
  reviewed: '2026-10-18'
  reviewed_by: 'Claude, from the sources listed'
  status: draft
---
The NSW Spatial Digital Twin is run by DCS Spatial Services, the New South Wales government's spatial data and surveying authority. Its catalogue describes it as a set of connected products: the SDT Explorer, a browser viewer for 2D, 3D and 4D spatial data with terrain, buildings and infrastructure, cadastre, property boundaries and aerial imagery; the Spatial Collaboration Portal, a shared data management and delivery platform for agencies, councils and industry; SDT Stories, for map-based narratives; and customised twins, web maps, apps and dashboards built for agencies on request. The older viewer address nsw.digitaltwin.terria.io now redirects to the Explorer at portal.spatial.nsw.gov.au.

The stated uses are urban planning and development, asset and infrastructure management, environmental monitoring, public engagement and emergency incident management, with real-time feeds from IoT sensors, traffic and environmental monitoring. The catalogue names no single worked example.

What is open: the Explorer is free. The Collaboration Portal holds more than 1,000 datasets covering the 21 themes of the Foundation Spatial Data Framework, accessible through customer APIs, but downloads and API access are subject to the sharing permissions each contributing organisation sets, so some data is open and some is not. Agencies, councils and private organisations can upload and share their own datasets through the portal. No licence is named in the pages read, and nothing is said about the viewer's source code.

Status: operational. The product and services catalogue is dated 17 September 2025.