{"id":"6476cc20-ddeb-46a5-be64-10a23c8a159f","first_published_at":"2026-01-14T09:30:00.000Z","dimensions":[{"id":"485adaf0-3618-4695-8c15-10d9f47d45d4","type":"lookup_table","factTableColumn":"AreaCode","isSliceDimension":false,"metadata":[{"language":"en-GB","name":"Area"},{"language":"cy-GB","name":"Ardal"}]},{"id":"955abbf2-b8b1-45c0-a830-99c8948b76aa","type":"date","factTableColumn":"YearCode","isSliceDimension":false,"metadata":[{"language":"en-GB","name":"Period"},{"language":"cy-GB","name":"Cyfnod"}]},{"id":"e0b265f6-9cea-48f3-ad7c-a2b63cbdd74d","type":"lookup_table","factTableColumn":"TenureCode","isSliceDimension":false,"metadata":[{"language":"cy-GB","name":"Deiliadaeth"},{"language":"en-GB","name":"Tenure"}]}],"revisions":[{"id":"cace6622-f530-40ee-9042-b922bb04c47e","revision_index":3,"previous_revision_id":"cfbb5ba7-f029-4508-838a-e1ba12abe816","created_at":"2026-05-20T10:58:35.090Z","updated_at":"2026-06-04T06:54:14.119Z","approved_at":"2026-06-04T06:54:14.116Z","publish_at":"2026-06-04T08:30:00.000Z","rounding_applied":true,"update_frequency":{"date":{"day":"","year":"2026","month":"12"},"update_type":"update"},"designation":"accredited","coverage_start_date":"2001-03-31","coverage_end_date":"2025-03-31","related_links":[{"id":"M0zLM","url":"https://www.gov.wales/dwelling-stock-estimates","created_at":"2025-12-12T16:11:04.466Z","label_en":"Dwelling stock estimates","label_cy":"Amcangyfrifon stoc annedd"},{"id":"RGJPX","url":"https://www.gov.wales/dwelling-stock-estimates-quality-report","created_at":"2025-12-12T16:12:17.066Z","label_en":"Dwelling stock estimates: quality report","label_cy":"Amcangyfrifon stoc annedd: adroddiad ansawdd"},{"id":"5oziU","url":"https://www.gov.wales/social-landlord-housing-stock-and-rents","created_at":"2025-12-12T16:17:40.205Z","label_en":"Social landlord housing stock and rents","label_cy":"Stoc tai landlordiaid cymdeithasol a rhent"},{"id":"LNzQL","url":"https://www.gov.wales/dwelling-stock-estimates-31-march-2022","created_at":"2026-01-08T12:20:26.472Z","label_en":"Dwelling stock estimates: as at 31 March 2022","label_cy":"Amcangyfrifon stoc annedd: ar 31 Mawrth 2022"},{"id":"1Md56","url":"https://www.gov.wales/dwelling-stock-estimates-2011-census-count-and-rolled-forward-estimates","created_at":"2026-01-08T12:21:51.462Z","label_en":"Dwelling stock estimates: 2011 census count and rolled forward estimates","label_cy":"Amcangyfrifon stoc annedd: Cyfrif o'r cyfrifiad 2011 ac amcangyfrifon wedi'u rholio ymlaen"},{"id":"kiQMv","url":"https://www.gov.wales/housing-demolitions","created_at":"2026-05-20T11:09:05.360Z","label_en":"Housing demolitions","label_cy":"Tai a gafodd eu dymchwel"},{"id":"E1LVu","url":"https://www.gov.wales/new-house-building","created_at":"2026-05-20T11:10:25.822Z","label_en":"New house building","label_cy":"Adeiladu tai newydd"},{"id":"voHb0","url":"https://www.ons.gov.uk/datasets/RM204/editions/2021/versions/1","created_at":"2026-05-20T11:11:23.122Z","label_en":"2021 Census","label_cy":"Cyfrifiad 2021"}]},{"id":"cfbb5ba7-f029-4508-838a-e1ba12abe816","revision_index":2,"previous_revision_id":"fd6d2925-d8bb-4f6c-acf1-5dfc6d5e558d","created_at":"2026-01-15T07:51:39.880Z","updated_at":"2026-01-15T10:34:13.550Z","approved_at":"2026-01-15T10:34:13.548Z","publish_at":"2026-01-15T12:00:00.000Z","rounding_applied":true,"update_frequency":{"date":{"day":"","year":"2026","month":"12"},"update_type":"update"},"designation":"accredited","coverage_start_date":"2001-03-31","coverage_end_date":"2024-03-31","related_links":[{"id":"M0zLM","url":"https://www.gov.wales/dwelling-stock-estimates","created_at":"2025-12-12T16:11:04.466Z","label_en":"Dwelling stock estimates","label_cy":"Amcangyfrifon stoc annedd"},{"id":"RGJPX","url":"https://www.gov.wales/dwelling-stock-estimates-quality-report","created_at":"2025-12-12T16:12:17.066Z","label_en":"Dwelling stock estimates: quality report","label_cy":"Amcangyfrifon stoc annedd: adroddiad ansawdd"},{"id":"5oziU","url":"https://www.gov.wales/social-landlord-housing-stock-and-rents","created_at":"2025-12-12T16:17:40.205Z","label_en":"Social landlord housing stock and rents","label_cy":"Stoc tai landlordiaid cymdeithasol a rhent"},{"id":"LNzQL","url":"https://www.gov.wales/dwelling-stock-estimates-31-march-2022","created_at":"2026-01-08T12:20:26.472Z","label_en":"Dwelling stock estimates: as at 31 March 2022","label_cy":"Amcangyfrifon stoc annedd: ar 31 Mawrth 2022"},{"id":"1Md56","url":"https://www.gov.wales/dwelling-stock-estimates-2011-census-count-and-rolled-forward-estimates","created_at":"2026-01-08T12:21:51.462Z","label_en":"Dwelling stock estimates: 2011 census count and rolled forward estimates","label_cy":"Amcangyfrifon stoc annedd: Cyfrif o'r cyfrifiad 2011 ac amcangyfrifon wedi'u rholio ymlaen"}]}],"published_revision":{"id":"cace6622-f530-40ee-9042-b922bb04c47e","revision_index":3,"previous_revision_id":"cfbb5ba7-f029-4508-838a-e1ba12abe816","created_at":"2026-05-20T10:58:35.090Z","updated_at":"2026-06-04T06:54:14.119Z","approved_at":"2026-06-04T06:54:14.116Z","publish_at":"2026-06-04T08:30:00.000Z","metadata":[{"language":"en-GB","title":"Dwelling stock estimates by tenure and local authority area","summary":"Estimates of the number of dwellings in Wales, as at 31 March each year. The estimates relate to the end of each financial year i.e. estimates for 2011-12 relate to 31 March 2012. The breakdown of dwelling stock estimates by tenure is estimated from 2001, 2011 and 2021 Census information and information from the Annual Population Survey, local authority returns and registered social landlord (RSL) returns.","collection":"Estimates of the number of dwellings are based on data from the 2001, 2011 and 2021 population censuses, updated annually to take account of dwelling stock through new build completions plus any gains or losses through conversations and demolitions.\r\n\r\nThis method of ‘rolling forward’ the estimates from a census provides estimates between the census years. However, after rolling forward estimates for 10 years, discrepancies are usually observed between the rolled forward estimates and the next census figures. The rolled forward method, whilst the best available methodology between censuses, is likely to produce less reliable estimates for years further away from the census base. For further information on the difference between the estimate of dwellings and the census counts please refer to the annex of the Dwelling stock estimates: as at 31 March 2022 report and Dwelling stock estimates: 2011 census count and rolled forward estimates, found in related reports.\r\n\r\nThe tenure split for Wales between owner-occupied and privately rented dwellings has been estimated using information from the Annual Population Survey (APS). Full details of the methodology are in the statistical release.","quality":"Owner occupied and private rent data for 2023 and 2024 has been revised to account for the published 2024 APS data. The owner occupied and private rent data for 2024 and 2025 is provisional and will be revised once the 2025 APS data is available. The APS has seen a fall in sample sizes over recent years and the statistical uncertainty for estimates has increased. Therefore, the Office for Statistics Regulation (OSR) has agreed it’s official statistics accreditation should be temporarily suspended and the 2025 edition of the dataset is official statistics in development; the method is subject to change as quality issues in survey sources are addressed and depending on user feedback\r\n\r\nFollowing the publication of the Census 2021 dwellings data, dwelling stock estimates have been recalibrated against the Census 2021 dwellings count to ensure consistency with both the previous and latest census. Further details are available in the statistical release.","rounding_description":"Due to the uncertainty around the estimates, figures have been rounded to the nearest 100.\r\n\r\nDue to the way in which the APS proportions have been applied, the Wales total may not equal the sum of the local authority numbers (and regions) for some tenures. The regional figures are calculated as the sum of the local authority numbers.\r\n\r\nSome tenure breakdown percentages may not sum to 100 due to rounding.","reason":"Updated including data up to 31/03/2025"},{"language":"cy-GB","title":"Amcangyfrifon stoc anheddau yn ôl deiliadaeth ac ardal awdurdod lleol","summary":"Amcangyfrifon o nifer yr anheddau yng Nghymru, ar 31 Mawrth bob blwyddyn. Mae'r amcangyfrifon yn ymwneud â diwedd pob blwyddyn ariannol h.y. mae amcangyfrifon ar gyfer 2011-12 yn ymwneud â 31 Mawrth 2012. Amcangyfrifir y dadansoddiad o amcangyfrifon stoc anheddau yn ôl deiliadaeth o wybodaeth Cyfrifiad 2001, 2011 a 2021 a gwybodaeth o'r Arolwg Poblogaeth Blynyddol, ffurflenni awdurdodau lleol a ffurflenni landlordiaid cymdeithasol cofrestredig (RSL).","collection":"Mae amcangyfrifon o nifer yr anheddau yn seiliedig ar ddata cyfrifiadau poblogaeth 2001, 2011 a 2021, sy'n cael eu diweddaru bob blwyddyn i gyfrif y stoc anheddau newydd a gwblheir ynghyd ag unrhyw enillion neu golledion trwy addasiadau a dymchweliadau.\n\nMae'r dull hwn o greu amcangyfrifon treigl ar sail ffigurau cyfrifiad yn rhoi amcangyfrifon rhwng cyfrifiadau. Ond ar ôl creu amcangyfrifon am 10 mlynedd, mae anghysondebau fel arfer i’w gweld rhwng yr amcangyfrifon a ffigurau nesa’r cyfrifiad. Er mai’r amcangyfrifon treigl hyn yw’r dull amcangyfrif gorau rhwng cyfrifiadau, pella’n y byd yw’r amcangyfrif o flwyddyn y cyfrifiad, lleia’ dibynadwy y bydd yr amcangyfrif hwnnw. I gael rhagor o wybodaeth am y gwahaniaeth rhwng yr amcangyfrif o anheddau a chyfrif y cyfrifiad, cyfeiriwch at atodiad yr adroddiad Stoc anheddau: ar 31 Mawrth 2022 ac amcangyfrifon stoc anheddau: cyfrif cyfrifiad 2011 ac amcangyfrifon wedi'u rholio ymlaen, a geir mewn adroddiadau cysylltiedig.\n\nAmcangyfrifwyd y rhaniad yng Nghymru rhwng anheddau perchen-feddiant ac anheddau rhent preifat trwy ddefnyddio gwybodaeth o'r Arolwg Blynyddol o'r Boblogaeth (APS). Gweler manylion llawn y fethodoleg yn y datganiad ystadegol.","quality":"Mae data perchen-feddiant a rhent preifat ar gyfer 2023 a 2024 wedi'i ddiwygio i gyfrif am y data APS 2024 a gyhoeddwyd. Mae'r data perchen-feddiant a rhent preifat ar gyfer 2024 a 2025 yn ddata dros dro a bydd yn cael ei ddiwygio unwaith y bydd data APS 2025 ar gael. Mae'r APS wedi gweld gostyngiad mewn meintiau sampl dros y blynyddoedd diwethaf ac mae'r ansicrwydd ystadegol ar gyfer amcangyfrifon wedi cynyddu. Felly, mae'r Swyddfa Rheoleiddio Ystadegau (OSR) wedi cytuno y dylid atal ei achrediad ystadegau swyddogol dros dro ac mae rhifyn 2025 o'r set ddata yn ystadegau swyddogol yn cael eu datblygu; mae'r dull yn destun newid wrth i faterion ansawdd mewn ffynonellau arolygon gael eu hystyried, ac yn dibynnu ar adborth defnyddwyr.\r\n\r\nYn dilyn cyhoeddi data anheddau Cyfrifiad 2021, mae amcangyfrifon stoc anheddau wedi’u haddasu ar sail ffigur anheddau Cyfrifiad 2021 i sicrhau cysondeb â’r cyfrifiad blaenorol a’r cyfrifiad diweddaraf. Ceir rhagor o fanylion yn y datganiad ystadegol.","rounding_description":"Oherwydd ansicrwydd am yr amcangyfrifon, mae’r ffigurau wedi’u talgrynnu i’r 100 agosaf.\r\n\r\nOherwydd y modd y defnyddiwyd cyfraddau Arolwg Blynyddol y Boblogaeth, ni fydd cyfanswm Cymru yn cyfateb i swm yr awdurdodau lleol ar gyfer rhai daliadaethau. Cyfrifwyd y ffigyrau rhanbarthol fel swm yr awdurdodau lleol.\r\n\r\nAm eu bod wedi’u talgrynnu, ni fydd rhai canrannau deiliadaeth yn dod i 100.","reason":"Wedi'i ddiweddaru gan gynnwys data hyd at 31/03/2025"}],"rounding_applied":true,"update_frequency":{"date":{"day":"","year":"2026","month":"12"},"update_type":"update"},"designation":"accredited","coverage_start_date":"2001-03-31","coverage_end_date":"2025-03-31","related_links":[{"id":"M0zLM","url":"https://www.gov.wales/dwelling-stock-estimates","created_at":"2025-12-12T16:11:04.466Z","label_en":"Dwelling stock estimates","label_cy":"Amcangyfrifon stoc annedd"},{"id":"RGJPX","url":"https://www.gov.wales/dwelling-stock-estimates-quality-report","created_at":"2025-12-12T16:12:17.066Z","label_en":"Dwelling stock estimates: quality report","label_cy":"Amcangyfrifon stoc annedd: adroddiad ansawdd"},{"id":"5oziU","url":"https://www.gov.wales/social-landlord-housing-stock-and-rents","created_at":"2025-12-12T16:17:40.205Z","label_en":"Social landlord housing stock and rents","label_cy":"Stoc tai landlordiaid cymdeithasol a rhent"},{"id":"LNzQL","url":"https://www.gov.wales/dwelling-stock-estimates-31-march-2022","created_at":"2026-01-08T12:20:26.472Z","label_en":"Dwelling stock estimates: as at 31 March 2022","label_cy":"Amcangyfrifon stoc annedd: ar 31 Mawrth 2022"},{"id":"1Md56","url":"https://www.gov.wales/dwelling-stock-estimates-2011-census-count-and-rolled-forward-estimates","created_at":"2026-01-08T12:21:51.462Z","label_en":"Dwelling stock estimates: 2011 census count and rolled forward estimates","label_cy":"Amcangyfrifon stoc annedd: Cyfrif o'r cyfrifiad 2011 ac amcangyfrifon wedi'u rholio ymlaen"},{"id":"kiQMv","url":"https://www.gov.wales/housing-demolitions","created_at":"2026-05-20T11:09:05.360Z","label_en":"Housing demolitions","label_cy":"Tai a gafodd eu dymchwel"},{"id":"E1LVu","url":"https://www.gov.wales/new-house-building","created_at":"2026-05-20T11:10:25.822Z","label_en":"New house building","label_cy":"Adeiladu tai newydd"},{"id":"voHb0","url":"https://www.ons.gov.uk/datasets/RM204/editions/2021/versions/1","created_at":"2026-05-20T11:11:23.122Z","label_en":"2021 Census","label_cy":"Cyfrifiad 2021"}],"providers":[{"id":"83b7e80d-a7ad-4c9f-a23a-d8e577b8aa21","group_id":"b054c262-468f-4f15-8147-0ba52e61614a","revision_id":"cace6622-f530-40ee-9042-b922bb04c47e","language":"cy-gb","provider_id":"98aed6ef-122c-430b-988c-92258cb372f5","provider_name":"Llywodraeth Cymru","source_id":"cee20a24-f652-4101-88e8-e58fd20ce9b0","source_name":"Amcangyfrifon o'r Stoc Anheddau","created_at":"2026-05-20T10:58:35.090Z"},{"id":"c5322d4a-9330-477d-b961-8ebec888de07","group_id":"b054c262-468f-4f15-8147-0ba52e61614a","revision_id":"cace6622-f530-40ee-9042-b922bb04c47e","language":"en-gb","provider_id":"98aed6ef-122c-430b-988c-92258cb372f5","provider_name":"Welsh Government","source_id":"cee20a24-f652-4101-88e8-e58fd20ce9b0","source_name":"Dwelling stock estimates","created_at":"2026-05-20T10:58:35.090Z"}],"topics":[{"id":56,"path":"56","name_en":"Housing","name_cy":"Tai"},{"id":65,"path":"56.65","name_en":"Housing stock and need","name_cy":"Stoc tai a'r angen"}]},"publisher":{"group":{"id":"3b87868f-9c70-42cf-bcc4-f55e777f7ddd","name":"Housing","email":"stats.housing@gov.wales"},"organisation":{"id":"4ef4facf-c488-4837-a65b-e66d4b525965","name":"Welsh Government"}}}