Casera uses Ordnance Survey mapping as the foundation for every regulated local authority search produced through the platform. When you instruct a search through Casera, the underlying map data comes directly from OS, ensuring the property boundaries, surrounding features, and location data you are working with are accurate, up to date, and accepted by local authorities across England and Wales.

Ordnance Survey is Great Britain's national mapping agency and a public corporation of the Department for Science, Innovation and Technology. It maintains the National Map, a database of over 600 million geospatial features that is updated 20,000 times a day. OS MasterMap is the most detailed large-scale digital mapping available in Great Britain, and it is the standard used by HM Land Registry, local authorities, and the property industry for official purposes.

For conveyancers, this matters because local authorities will reject search applications submitted with unlicensed or out-of-date mapping. By building OS data directly into the Casera platform, you do not need to worry about sourcing licensed plans separately or risk having searches returned. The correct, licensed mapping is applied automatically when you instruct a search, removing an admin step and reducing the chance of delays.

As with all Casera integrations, if there is ever a query relating to mapping on a search, Casera acts as your single point of contact and handles it on your behalf.