{"licence":"Open Government Licence v3.0","licence_url":"https://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/","territorial_scope":"Great Britain (England, Scotland, Wales). Northern Ireland (BT) and Crown Dependencies (JE, GY, IM) are strictly excluded.","attribution_summary":"Contains OS data © Crown copyright and database right 2026. Contains Royal Mail data © Royal Mail copyright and database right 2026. Contains National Statistics data © Crown copyright and database right 2026. Contains HM Land Registry data © Crown copyright 2026. Contains Registers of Scotland data © Crown copyright and database right 2026. Contains public sector information licensed under the Open Government Licence v3.0 (MHCLG Open EPC, Scottish Government Domestic EPC, English/Welsh/Scottish Indices of Deprivation, Ofcom Connected Nations, DfE GIAS, CQC, Scottish Government, Welsh Government, Public Health Scotland, Healthcare Inspectorate Wales).","attribution_url":"https://api.postcodecontext.uk/api/v1/attribution","database_last_updated":"2026-10-23T11:35:00Z","baseline_vintage":"2026.10","update_cadence":"Monthly active refresh (Land Registry & EPC); Quarterly geographic re-alignment (ONSPD); Periodic (Census & IMD)","sources":[{"dataset":"ONS Postcode Directory (ONSPD) & Census 2021","provider":"Office for National Statistics","coverage":"Great Britain / England & Wales","licence":"Open Government Licence v3.0","licence_url":"https://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/","mandatory_statement":"Contains National Statistics data © Crown copyright and database right 2026. Source: Office for National Statistics licensed under the Open Government Licence v.3.0.","vintage":"ONSPD 2026-Q3 / Census 2021","last_updated":"2026-08","update_frequency":"Quarterly (ONSPD) / Decennial (Census)"},{"dataset":"Postcode Centroids & British National Grid Projections","provider":"Ordnance Survey","coverage":"Great Britain","licence":"Open Government Licence v3.0 (OS OpenData)","licence_url":"https://www.ordnancesurvey.co.uk/about/governance/licences-operating-models","mandatory_statement":"Contains OS data © Crown copyright and database right 2026.","vintage":"OS OpenData 2026","last_updated":"2026-04","update_frequency":"Bi-annual"},{"dataset":"Postcode Delivery Point & Unit Allocation (Gridlink)","provider":"Royal Mail","coverage":"Great Britain","licence":"Royal Mail PAF / Gridlink Sublicence Terms","licence_url":"https://www.poweredbypaf.com/","mandatory_statement":"Contains Royal Mail data © Royal Mail copyright and database right 2026. 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This data is licensed under the Open Government Licence v3.0.","vintage":"3-Year Rolling Residential Sales (2024–2026)","last_updated":"2026-10","update_frequency":"Monthly"},{"dataset":"Open EPC Domestic Energy Register","provider":"Ministry of Housing, Communities & Local Government (MHCLG)","coverage":"England and Wales","licence":"Open Government Licence v3.0","licence_url":"https://epc.opendatacommunities.org/","mandatory_statement":"Contains public sector information licensed under the Open Government Licence v3.0.","vintage":"2024–2026 Domestic Energy Certificates","last_updated":"2026-09","update_frequency":"Monthly"},{"dataset":"Scottish Domestic Energy Performance Certificate (EPC) Register","provider":"Scottish Government","coverage":"Scotland","licence":"Open Government Licence v3.0","licence_url":"https://statistics.gov.scot/resource?uri=http%3A%2F%2Fstatistics.gov.scot%2Fdata%2Fdomestic-energy-performance-certificates","mandatory_statement":"Contains Scottish Government data © Crown copyright 2026, licensed under the Open Government Licence v3.0.","vintage":"2024–2026 Domestic Energy Certificates","last_updated":"2026-09","update_frequency":"Quarterly"},{"dataset":"Residential Property Transaction Medians (2023–2025)","provider":"Registers of Scotland (RoS)","coverage":"Scotland","licence":"Open Government Licence v3.0 (RoS Open Data)","licence_url":"https://www.ros.gov.uk/data-and-statistics/open-data","mandatory_statement":"Contains Registers of Scotland data © Crown copyright and database right 2026. Sourced from the RoS Land Register under the Open Government Licence v3.0.","vintage":"3-Year Rolling Residential Sales (2023–2025)","last_updated":"2026-09","update_frequency":"Quarterly"},{"dataset":"English Indices of Deprivation (IoD 2025)","provider":"Ministry of Housing, Communities & Local Government (MHCLG)","coverage":"England","licence":"Open Government Licence v3.0","licence_url":"https://www.gov.uk/government/statistics/english-indices-of-deprivation-2025","mandatory_statement":"Contains public sector information licensed under the Open Government Licence v3.0.","vintage":"IoD 2025 Official Baseline","last_updated":"2025-11","update_frequency":"Periodic (5–6 Years)"},{"dataset":"Welsh Index of Multiple Deprivation (WIMD 2025)","provider":"Welsh Government","coverage":"Wales","licence":"Open Government Licence v3.0","licence_url":"https://www.gov.wales/welsh-index-multiple-deprivation","mandatory_statement":"Contains Welsh Government data © Crown copyright 2026, licensed under the Open Government Licence v3.0.","vintage":"WIMD 2025 Official Baseline","last_updated":"2025-11","update_frequency":"Periodic (5 Years)"},{"dataset":"Scottish Index of Multiple Deprivation (SIMD 2020)","provider":"Scottish Government","coverage":"Scotland","licence":"Open Government Licence v3.0","licence_url":"https://www.gov.scot/collections/scottish-index-of-multiple-deprivation-2020/","mandatory_statement":"Contains Scottish Government data © Crown copyright 2026, licensed under the Open Government Licence v3.0.","vintage":"SIMD 2020v2 Official Baseline","last_updated":"2020-01","update_frequency":"Periodic (4–5 Years)"},{"dataset":"Connected Nations Fixed Broadband Postcode Coverage","provider":"Ofcom","coverage":"Great Britain","licence":"Open Government Licence v3.0","licence_url":"https://www.ofcom.org.uk/research-and-data/telecoms-research/connected-nations","mandatory_statement":"Contains Ofcom data licensed under the Open Government Licence 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