A case study of Northumberland’s work to integrate public rights of way data with the Local Street Gazetteer (LSG). This case study outlines the proactive work of the LSG Custodian in harmonising council data. The case study examines the particular example of linking local street data with public rights of way data. A key lesson has been the value of matching from a spatial point of view but the case study also demonstrates the value of harmonising information within a council. Northumberland Council – Joining up intelligence for improved service delivery.