Access to the NSG is primarily limited to use by local government and those organisations that work on or around highways, as the definitive reference for co-ordinating street works and managing the road network.
In the near future we also hope to offer access to signatories of the Public Services Geospatial Agreement (PSGA) which incorporates providers of public services, central government and emergency services.
See below for information on products and pricing for local authorities.
Pricing:

DataVia Basic, includes:
CSV Download Service: As a local authority you are entitled to use the NSG CSV Download Service for free from our Services website.
Price:
This product is free to use for Local Government.
DataVia Standard, includes:
DataVia API: DataVia delivers the NSG as an API. It provides a complete network of streets in England and Wales, combined with a lot of important detail
Why switch to DataVia API?
- Stay current – Access the latest NSG data the day after submission
- Simple API calls – Effortlessly retrieve targeted insights from NSG data
- Ensure consistency – One version of the truth across all street systems
- Simplify workflows – Eliminate manual handling and transformations
- Future-proof your systems – Built for GIS, web, and mobile platforms
CSV API to Download CSV files: DataVia includes an API webservice that provides you with direct access to the NSG CSV file download service. No need to manually login to the site which allows for greater automation and integration into workflows.
The CSV API facility allows the process to be triggered using suitable Client Program or Tools such as Python, Perl, Java, Microsoft.net, Scala, cURL to run at a set time each month. This will save time, streamline processes and allows the task to be run at a more convenient time each month.
Price:
Annual access to DataVia is provided free to Local Authorities by the LGA.
Which product is best for my organisation?

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