4f4c4942-4343-5764-6473-313235373231 English Natural Resources Wales (NRW) Maes-y-Ffynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW, Wales enquiries@naturalresourceswales.gov.uk http://naturalresources.wales/?lang=en 2025-12-19T10:20:31.996Z NRW 1.0 wel British National Grid (EPSG::27700) National Receptor Dataset (NRD) 2023 and 2025 National Receptor Dataset (NRD) 2023 and 2025 Set Ddata Derbynnydd Cenedlaethol (NRD) 2023 a 2025 National Receptors Database 2023 (NRD 2023).lyr National Receptors Database 2025 (NRD 2025).lyr 2025-09-01 NRW_DS125721 The National Receptor Dataset (NRD) is a collection of risk receptors, typically residential and commercial property, intended for use in flood and coastal erosion risk management. It is a spatial dataset produced from Ordnance Survey (OS) AddressBase® Premium (ABP) and OS MasterMap® (MM) data with information on property type, floor area and Flood Hazard Research Centre’s Multi-Coloured Manual (MCM) codes attributed. The versions of the NRD described here for the NRD 2023 & 2025 created as part of the Flood Risk Assessment Wales Data Management (FRAW DM) process. These datasets of NRD builds on the same methodology as NRD 2018, with a refresh of input datasets. NRD 2023 & 2025 comprises of two layers, they have been created from the OS AddressBase Premium dataset and from OSMM, which is created from OS MasterMap. Both datasets should be viewed together, to give a complete view of the NRD datasets. List of improvements from NRD 2018 to NRD 2023 & 2025 include: 1. Main input datasets have been updated, including; OS ABP, OS MM, NRW Flood Alert and Warning Areas, NRW Flood Warning Uptake, Defended Areas. 2. Over 52,000 Static Caravans are now included in the OS MM datasets, therefore these have now been included in the NRD 2023 & 2025 from OSMM Layer. 3. The building footprint threshold within the NRD 2023 & 2025 from OSMM layer has been increased from 30m² to 60m². This is to remove unwanted features like garages being classified as “Residential” dwelling. 4. Ordnance Survey have significantly improved their classification of properties across Wales. For example, end of terrace houses in some location were called “semi-detached” previously, these have now been correctly assigned as “end of terrace” in NRD 2023 & 2025. The National Receptor Dataset (NRD) is a collection of risk receptors, typically residential and commercial property, intended for use in flood and coastal erosion risk management. It is a spatial dataset produced from Ordnance Survey (OS) AddressBase® Premium (ABP) and OS MasterMap® (MM) data with information on property type, floor area and Flood Hazard Research Centre’s Multi-Coloured Manual (MCM) codes attributed. The versions of the NRD described here for the NRD 2023 & 2025 created as part of the Flood Risk Assessment Wales Data Management (FRAW DM) process. These datasets of NRD builds on the same methodology as NRD 2018, with a refresh of input datasets. NRD 2023 & 2025 comprises of two layers, they have been created from the OS AddressBase Premium dataset and from OSMM, which is created from OS MasterMap. Both datasets should be viewed together, to give a complete view of the NRD datasets. List of improvements from NRD 2018 to NRD 2023 & 2025 include: 1. Main input datasets have been updated, including; OS ABP, OS MM, NRW Flood Alert and Warning Areas, NRW Flood Warning Uptake, Defended Areas. 2. Over 52,000 Static Caravans are now included in the OS MM datasets, therefore these have now been included in the NRD 2023 & 2025 from OSMM Layer. 3. The building footprint threshold within the NRD 2023 & 2025 from OSMM layer has been increased from 30m² to 60m². This is to remove unwanted features like garages being classified as “Residential” dwelling. 4. Ordnance Survey have significantly improved their classification of properties across Wales. For example, end of terrace houses in some location were called “semi-detached” previously, these have now been correctly assigned as “end of terrace” in NRD 2023 & 2025. Natural Resources Wales (NRW) Maes-y-Ffynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW, Wales enquiries@naturalresourceswales.gov.uk http://naturalresources.wales/?lang=en Natural Resources Wales (NRW) Maes-y-Ffynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW, Wales enquiries@naturalresourceswales.gov.uk http://naturalresources.wales/?lang=en Natural Resources Wales (NRW) Maes-y-Ffynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW, Wales enquiries@naturalresourceswales.gov.uk http://naturalresources.wales/?lang=en Natural Resources Wales (NRW) Maes-y-Ffynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW, Wales enquiries@naturalresourceswales.gov.uk http://naturalresources.wales/?lang=en Buildings Addresses GEMET - INSPIRE themes, version 1.0 2008-06-01 geonetwork.thesaurus.external.theme.httpinspireeceuropaeutheme-theme Addresses Locations NRW Thesaurus 2025-01-08 geonetwork.thesaurus.local.theme.converted_nrw-keywords SeaDataNet Parameter Discovery Vocabulary 2024-06-19 geonetwork.thesaurus.external.theme.rdf+xml IPSV Subjects List 2020-11-18 geonetwork.thesaurus.external.theme.subjects Ecosystem Services (SMNR) Flooding (SMNR) Sustainable Management of Natural Resources (SMNR) Regulating Services (SMNR) Hydrological Processes (SMNR) Natural Resources (Incl. Features and Processes) (SMNR) Management Areas (SMNR) Water Resources (SMNR) NRW SMNR Keywords 2024-06-26 geonetwork.thesaurus.local.theme.converted_nrw-smnr-keywords The data is derived from Ordnance Survey and Middlesex University London owned data and therefore has third party ownership associated with it. There may be access restrictions on the derived data and there are third party use restrictions. no limitations © Natural Resources Wales. All rights reserved. © Ordnance Survey AC0000849444 © Middlesex University, Flood Hazard Research Centre. Data may be re-used under provision and in line with the terms of a NRW licence. Those seeking re-use also require a licence from Ordnance Survey for the derived OS data and from Middlesex University for the derived Multi-Coloured Manual (MCM) data. NRW hold an MCM code licence that includes re-use by NRW as well as all Welsh Local Authorities and Welsh Government. Other seeking re-use must purchase a licence from Middlesex University. Contains Natural Resources Wales information © Natural Resources Wales and database right. All rights reserved. Contains OS data © Crown copyright. AC0000849444. Contains Middlesex University Data © Middlesex University, Flood Hazard Research Centre NRW Conditional English location structure SeaVoX Vertical Co-ordinate Coverages 2021-01-06 Wales (WLS) -5.777741 -2.608865 51.240829 53.513067 2023-01-01 2025-09-01 Additional reference material available comprising: NRD_2023_EXTERNAL_User_Guide_001 NRD_2018_Reference_Documents It is important to note that both NRD 2023 and NRD 2023 from OS Mastermap should be viewed together, to give a complete view of the NRD 2023 dataset. NRD_2025_EXTERNAL_User_Guide_001 Geographic Information System Unknown ESRI Feature Class Commission Regulation (EU) No 1089/2010 of 23 November 2010 implementing Directive 2007/2/EC of the European Parliament and of the Council as regards interoperability of spatial data sets and services 2010-12-08 This dataset has not been assessed for conformance to the referenced INSPIRE regulation. false These dataset builds on the same methodology used in NRD2018 and is derived from two sources: OS ABP and OS MM. Updates to both are released every 6 weeks. NRD 2023 & 2025 are a snapshot of a particular moment in time. Both datasets have not been designed for addressing purposes and we don’t recommend using it for this, mainly because it may not be up-to-date. We recommend the OS ABP instead. NRD 2023 & 2025 have been compiled to provide a general source of receptor information for FRAW and a range of other FCRM activities; you will need to decide whether it is appropriate for your specific application. For local studies, you will need to check whether any more detailed local information is available, and whether it would be more relevant to the work being undertaken. Please note that in NRD 2023 & 2025 not all records are for properties and may represent other features such as car parks, playing fields and electricity sub-stations. For further details refer to NRD 2023 & 2025 External User Guide and previous NRD 2018 documentation, including 2018s0011 - FRAW Project Report - Appendix T03 - NRD2018_Exclusions_v2.xlsx. and associated FRAW Project Reports. These dataset builds on the same methodology used in NRD2018 and is derived from two sources: OS ABP and OS MM. Updates to both are released every 6 weeks. NRD 2023 & 2025 are a snapshot of a particular moment in time. Both datasets have not been designed for addressing purposes and we don’t recommend using it for this, mainly because it may not be up-to-date. We recommend the OS ABP instead. NRD 2023 & 2025 have been compiled to provide a general source of receptor information for FRAW and a range of other FCRM activities; you will need to decide whether it is appropriate for your specific application. For local studies, you will need to check whether any more detailed local information is available, and whether it would be more relevant to the work being undertaken. Please note that in NRD 2023 & 2025 not all records are for properties and may represent other features such as car parks, playing fields and electricity sub-stations. For further details refer to NRD 2023 & 2025 External User Guide and previous NRD 2018 documentation, including 2018s0011 - FRAW Project Report - Appendix T03 - NRD2018_Exclusions_v2.xlsx. and associated FRAW Project Reports.