{ "name": "dampsurveyprices.co.uk Damp Prevalence Statistics", "title": "Damp Prevalence Statistics", "url": "https://dampsurveyprices.co.uk/datasets/damp-prevalence-statistics/", "csv": "https://dampsurveyprices.co.uk/datasets/damp-prevalence-statistics.csv", "markdown": "https://dampsurveyprices.co.uk/datasets/damp-prevalence-statistics/index.md", "computed_at": "2026-10-21", "license": "https://dampsurveyprices.co.uk/terms", "headline": "The Damp Prevalence Statistics carries 9 published figures read from 3 sources' own pages; the 7 published figures given by year run from 3 to 92 percent, read 12 October 2026.", "quotes": [ "The Damp Prevalence Statistics carries 9 published figures read from 3 sources' own pages; the 7 published figures given by year run from 3 to 92 percent, read 12 October 2026.", "3 of the 6 named sources read in full publish a figure; 3 publish none, read 12 October 2026.", "Damp Prevalence Statistics, year 2024: median 8 percent across 1 source, read 12 October 2026.", "Damp Prevalence Statistics, year 2012: median 86 percent across 1 source, read 12 October 2026.", "Damp Prevalence Statistics, year 2023: median 90 percent across 1 source, read 12 October 2026." ], "citation": "\"dampsurveyprices.co.uk Damp Prevalence Statistics\", updated 2026-10-21, https://dampsurveyprices.co.uk/datasets/damp-prevalence-statistics/.", "changed_since": null, "national": { "unit": "%", "n": 5, "median": 8, "min": 4, "max": 90, "p25": 4, "p75": 88, "mean": 38.4, "units": { "%": 5 }, "published_sources": 3, "named_sources": 7, "read_sources": 6, "not_published": 3, "published_share": 0.5 }, "by_axis": { "year": { "2012": { "%": { "n": 1, "median": 86, "min": 86, "max": 86, "p25": 86, "p75": 86, "mean": 86 } }, "2023": { "%": { "n": 1, "median": 90, "min": 90, "max": 90, "p25": 90, "p75": 90, "mean": 90 } }, "2024": { "%": { "n": 1, "median": 8, "min": 8, "max": 8, "p25": 8, "p75": 8, "mean": 8 } } } }, "rows": [ { "source": "UKHSA: damp and mould research", "url": "https://research.ukhsa.gov.uk/our-research/damp-and-mould", "figure": "4%", "value": 4, "unit": "%", "vat": null, "axis": {}, "retrieved_at": "2026-10-12", "quote": "In England, there are around 2 million people currently living in homes with significant damp and/or mould (3-4% of residences).", "source_class": "primary-government", "text_sha256": "598aa682f0c23355b3243d396907ab1e18fb834bda4235745e799d070d892973" }, { "source": "Ethnicity facts and figures: housing with damp problems", "url": "https://www.ethnicity-facts-figures.service.gov.uk/housing/housing-conditions/housing-with-damp-problems/latest/", "figure": "4%", "value": 4, "unit": "%", "vat": null, "axis": {}, "retrieved_at": "2026-10-12", "quote": "in the 2 years to March 2023, an average of 4% of households in England had damp in at least one room", "source_class": "primary-government", "text_sha256": "9f6d6618aa4dca059b685aaa7ff3a5381ebad015fb8bae8133a1a1b31ac180fa" }, { "source": "Scottish House Condition Survey 2024: housing conditions", "url": "https://www.gov.scot/publications/scottish-house-condition-survey-2024-key-findings/pages/5-housing-conditions/", "figure": "92%", "value": 92, "unit": "%", "vat": null, "axis": { "year": "2024" }, "retrieved_at": "2026-10-12", "quote": "In 2024, around 92% of all dwellings in Scotland were free from mould.", "source_class": "primary-government", "text_sha256": "6cd518d3273f8fb7496b64cb7201cb06fb0be06f09d2c4c240babf7b8bd3f40d" }, { "source": "Scottish House Condition Survey 2024: housing conditions", "url": "https://www.gov.scot/publications/scottish-house-condition-survey-2024-key-findings/pages/5-housing-conditions/", "figure": "90%", "value": 90, "unit": "%", "vat": null, "axis": { "year": "2024" }, "retrieved_at": "2026-10-12", "quote": "Around 90% of all dwellings in 2024 were free from any form of condensation or damp.", "source_class": "primary-government", "text_sha256": "6cd518d3273f8fb7496b64cb7201cb06fb0be06f09d2c4c240babf7b8bd3f40d" }, { "source": "Scottish House Condition Survey 2024: housing conditions", "url": "https://www.gov.scot/publications/scottish-house-condition-survey-2024-key-findings/pages/5-housing-conditions/", "figure": "86%", "value": 86, "unit": "%", "vat": null, "axis": { "year": "2012" }, "retrieved_at": "2026-10-12", "quote": "This rate has been stable in recent years but represents an overall improvement from 86% in 2012.", "source_class": "primary-government", "text_sha256": "6cd518d3273f8fb7496b64cb7201cb06fb0be06f09d2c4c240babf7b8bd3f40d" }, { "source": "Scottish House Condition Survey 2024: housing conditions", "url": "https://www.gov.scot/publications/scottish-house-condition-survey-2024-key-findings/pages/5-housing-conditions/", "figure": "90%", "value": 90, "unit": "%", "vat": null, "axis": { "year": "2023" }, "retrieved_at": "2026-10-12", "quote": "In 2024, 92% of all dwellings were free from mould, an improvement from 90% in 2023.", "source_class": "primary-government", "text_sha256": "6cd518d3273f8fb7496b64cb7201cb06fb0be06f09d2c4c240babf7b8bd3f40d" }, { "source": "Scottish House Condition Survey 2024: housing conditions", "url": "https://www.gov.scot/publications/scottish-house-condition-survey-2024-key-findings/pages/5-housing-conditions/", "figure": "2024, 3%", "value": 3, "unit": "%", "vat": null, "axis": { "year": "2024" }, "retrieved_at": "2026-10-12", "quote": "In 2024, 3% of the housing stock (around 80,000 dwellings) suffered from some degree of penetrating damp.", "source_class": "primary-government", "text_sha256": "6cd518d3273f8fb7496b64cb7201cb06fb0be06f09d2c4c240babf7b8bd3f40d" }, { "source": "Scottish House Condition Survey 2024: housing conditions", "url": "https://www.gov.scot/publications/scottish-house-condition-survey-2024-key-findings/pages/5-housing-conditions/", "figure": "8%", "value": 8, "unit": "%", "vat": null, "axis": { "year": "2024" }, "retrieved_at": "2026-10-12", "quote": "Condensation was observed in 8% of the surveyed stock (around 199,000 dwellings) which is similar to recent years.", "source_class": "primary-government", "text_sha256": "6cd518d3273f8fb7496b64cb7201cb06fb0be06f09d2c4c240babf7b8bd3f40d" }, { "source": "Scottish House Condition Survey 2024: housing conditions", "url": "https://www.gov.scot/publications/scottish-house-condition-survey-2024-key-findings/pages/5-housing-conditions/", "figure": "8%", "value": 8, "unit": "%", "vat": null, "axis": { "year": "2024" }, "retrieved_at": "2026-10-12", "quote": "In 2024, mould was observed in 8% of the housing stock (around 195,000 dwellings).", "source_class": "primary-government", "text_sha256": "6cd518d3273f8fb7496b64cb7201cb06fb0be06f09d2c4c240babf7b8bd3f40d" } ], "not_published": [ { "source": "Scottish Government: Scottish House Condition Survey collection", "url": "https://www.gov.scot/collections/scottish-house-condition-survey/", "retrieved_at": "2026-09-12", "reason": "read in full and no accepted figure on the page" }, { "source": "Welsh Government: Welsh Housing Conditions Survey", "url": "https://www.gov.wales/welsh-housing-conditions-survey", "retrieved_at": "2026-09-12", "reason": "read in full and no accepted figure on the page" }, { "source": "Welsh Housing Conditions Survey: results viewer", "url": "https://www.gov.wales/welsh-housing-conditions-survey-results-viewer", "retrieved_at": "2026-09-12", "reason": "read in full and no accepted figure on the page" } ], "sources": [ { "url": "https://www.ethnicity-facts-figures.service.gov.uk/housing/housing-conditions/housing-with-damp-problems/latest/", "label": "Ethnicity facts and figures: housing with damp problems", "license": "the publisher's own terms; quoted for reporting and comment" }, { "url": "https://www.gov.scot/collections/scottish-house-condition-survey/", "label": "Scottish Government: Scottish House Condition Survey collection", "license": "the publisher's own terms; quoted for reporting and comment" }, { "url": "https://www.gov.scot/publications/scottish-house-condition-survey-2024-key-findings/pages/5-housing-conditions/", "label": "Scottish House Condition Survey 2024: housing conditions", "license": "the publisher's own terms; quoted for reporting and comment" }, { "url": "https://www.gov.wales/welsh-housing-conditions-survey", "label": "Welsh Government: Welsh Housing Conditions Survey", "license": "the publisher's own terms; quoted for reporting and comment" }, { "url": "https://www.gov.wales/welsh-housing-conditions-survey-results-viewer", "label": "Welsh Housing Conditions Survey: results viewer", "license": "the publisher's own terms; quoted for reporting and comment" }, { "url": "https://research.ukhsa.gov.uk/our-research/damp-and-mould", "label": "UKHSA: damp and mould research", "license": "the publisher's own terms; quoted for reporting and comment" }, { "url": "https://www.nihe.gov.uk/working-with-us/research/house-condition-survey", "label": "Northern Ireland Housing Executive: House Condition Survey", "license": "the publisher's own terms; quoted for reporting and comment" } ], "methodology": "Every row is a verbatim sentence read from the named source's own page through our fetch service on the date shown, hash-pinned to the stored read (the sha of the page's visible text; the raw page is mirrored to R2). 3 of the 6 named sources that could be read published a usable figure; 3 published none and are recorded as not published, never filled in; 1 could not be read (blocked, dead or unreachable) and count nowhere. The headline figures (median, minimum, maximum, quartiles) are over ONE figure per source for each breakdown it prices, in % (a source's median where its page yielded several accepted sentences for one breakdown), so a page that gives figures for several breakdowns gives one for each and N counts 5 figures, never sentences; 123 candidate sentence(s) were refused by a reviewer with the reason recorded. The fuller derivation this dataset is chartered to grow into (not yet what the figures above are; they are each source's own published figure as read): one row per nation per year per breakdown: the share of dwellings with damp, split by tenure, region, dwelling age and household characteristics, each taken from that nation's own statutory house-condition survey. The derivation is the thing no single agency publishes, because each publishes only its own nation on its own definition: a four-nation comparison on a stated common definition (England counts penetrating damp, rising damp or extensive mould; Scotland reports the inverse, dwellings FREE of damp; Wales reports damp, mould and condensation together), the series across years, and - the figure that turns a search into a page - the base rate for a house like the searcher's, so 'my bedroom wall is damp' can be answered with what share of homes of that tenure and age have the same problem. The definitional mismatch is published as part of the dataset, not hidden by it.", "embed": "

3 to 92 percent

7 of 9 published figures (year), Damp Prevalence Statistics, across 3 sources, read 12 October 2026

Source: dampsurveyprices.co.uk Damp Prevalence Statistics
" }