Data Quality Centre
Monitoring health and completeness across every integrated spending dataset, and stating plainly which evidence is unavailable.
Completeness
96.7%
Validity
100.0%
Duplicate rate
16.4%
Supplier match
20.4%
Contract-payment match
6.4%
Connected sources
Companies House — Free Company Data Product
Companies House
- Records
- 5,734,779
- Files
- 1
- Retrieved
- 20 Jul 2026
- Coverage
- 2026-07-01
- Freshness
- Current
Leeds City Council spend over £500
Leeds City Council
- Records
- 847,062
- Files
- 33
- Retrieved
- 20 Jul 2026
- Coverage
- 2022-11-22/2026-03-31
- Freshness
- 4 months behind
Leicester City Council expenditure over £500
Leicester City Council
- Records
- 273,704
- Files
- 4
- Retrieved
- 20 Jul 2026
- Coverage
- 2023-01-03/2026-06-30
- Freshness
- Current
Camden Council Spend Over £500
London Borough of Camden
- Records
- 195,377
- Files
- 1
- Retrieved
- 20 Jul 2026
- Coverage
- 2023-01-08/2026-12-06
- Freshness
- Forward-dated
Kensington & Chelsea payments over £500
Royal Borough of Kensington and Chelsea
- Records
- 175,039
- Files
- 9
- Retrieved
- 20 Jul 2026
- Coverage
- 2023-09-19/2026-03-31
- Freshness
- 4 months behind
Westminster expenditure over £500
Westminster City Council
- Records
- 79,152
- Files
- 4
- Retrieved
- 20 Jul 2026
- Coverage
- 2025-04-01/2026-03-31
- Freshness
- 4 months behind
Local Authority Housing Statistics open data 1978-79 to
Ministry of Housing, Communities & Local Government
- Records
- 16,075
- Files
- 1
- Retrieved
- 20 Jul 2026
- Coverage
- 1978-79/2024-25
- Freshness
- Unknown
Find a Tender — OCDS award notices
Cabinet Office
- Records
- 12,200
- Files
- 1
- Retrieved
- 20 Jul 2026
- Coverage
- 2023-07-01/2026-07-20
- Freshness
- Current
Contracts Finder — OCDS award notices
Cabinet Office
- Records
- 4,000
- Files
- 1
- Retrieved
- 20 Jul 2026
- Coverage
- 2023-07-01/2026-07-20
- Freshness
- Current
Sources not available
16 unavailableThese are listed rather than omitted. Each one bounds what the analysis on every other screen can honestly claim, so a missing source is itself a published finding.
Council housing work orders and outcome records
council-work-ordersPartner-pilot stage only. Property-level work orders, repeat visits and outcome records are not public data and require a DPA and DPIA before ingest (Data Guide §03).
Damp and mould prevalence by local authority
damp-mould-prevalenceNo such dataset exists. LAHS, PRP SHSR and the Tenant Satisfaction Measures do not report damp in dwellings, and the English Housing Survey — the only official source that measures damp directly — is a national sample survey with no local authority breakdown. Damp and mould can therefore be measured here as SPEND, never as prevalence.
Energy Performance Certificates — domestic search
epc-domesticRequires a registered bearer token (EPC_API_TOKEN). Without it no EPC rating is available, so retrofit priority is scored on spend and repeat-failure evidence only, not energy performance.
Kensington & Chelsea payments over £500 2024 Q4
rbkc-spend-2024-q4non-CSV response (text/html; charset=UTF-8)
Kensington & Chelsea payments over £500 2026 Q1
rbkc-spend-2026-q1non-CSV response (text/html; charset=UTF-8)
Kensington & Chelsea payments over £500 2026 Q2
rbkc-spend-2026-q2non-CSV response (text/html; charset=UTF-8)
Kensington & Chelsea payments over £500 2026 Q3
rbkc-spend-2026-q3non-CSV response (text/html; charset=UTF-8)
Westminster expenditure over £500 2023-24 Q2
westminster-spend-2023-24-q2404 Client Error: Not Found for url: https://www.westminster.gov.uk/media/document/q2-2023-24-expenditure-over-%C2%A3500
Westminster expenditure over £500 2023-24 Q3
westminster-spend-2023-24-q3404 Client Error: Not Found for url: https://www.westminster.gov.uk/media/document/q3-2023-24-expenditure-over-%C2%A3500
Westminster expenditure over £500 2023-24 Q4
westminster-spend-2023-24-q4404 Client Error: Not Found for url: https://www.westminster.gov.uk/media/document/q4-2023-24-expenditure-over-%C2%A3500
Westminster expenditure over £500 2024-25 Q1
westminster-spend-2024-25-q1404 Client Error: Not Found for url: https://www.westminster.gov.uk/media/document/q1-2024-25-expenditure-over-%C2%A3500
Westminster expenditure over £500 2024-25 Q2
westminster-spend-2024-25-q2404 Client Error: Not Found for url: https://www.westminster.gov.uk/media/document/q2-2024-25-expenditure-over-%C2%A3500
Westminster expenditure over £500 2024-25 Q3
westminster-spend-2024-25-q3404 Client Error: Not Found for url: https://www.westminster.gov.uk/media/document/q3-2024-25-expenditure-over-%C2%A3500
Westminster expenditure over £500 2024-25 Q4
westminster-spend-2024-25-q4404 Client Error: Not Found for url: https://www.westminster.gov.uk/media/document/q4-2024-25-expenditure-over-%C2%A3500
Westminster expenditure over £500 2026-27 Q1
westminster-spend-2026-27-q1404 Client Error: Not Found for url: https://www.westminster.gov.uk/media/document/q1-2026-27-expenditure-over-%C2%A3500
Westminster expenditure over £500 2026-27 Q2
westminster-spend-2026-27-q2404 Client Error: Not Found for url: https://www.westminster.gov.uk/media/document/q2-2026-27-expenditure-over-%C2%A3500
Quality dimensions
| Dimension | Score | Checks | Failed | System response |
|---|---|---|---|---|
| Completeness | 96.7% | 6 | 1 | Scored across date, payee, amount, service and description. Rows missing a required field are quarantined; missing service or description text reduces what can be classified and is reported rather than silently dropped. |
| Validity | 100.0% | 5 | 1 | Invalid rows are quarantined rather than coerced, so no fabricated value ever reaches an analytical total. |
| Uniqueness | 83.6% | 2 | 1 | Duplicate decisions are recorded with their source rather than applied silently. |
| Consistency | 72.4% | 4 | 1 | Rule violations create a review item; the classifier abstains rather than guessing. |
| Freshness | 9.1% | 71 | 50 | Stale sources are badged in the UI and the last successful refresh is shown rather than an empty result. |
| Lineage | 100.0% | 3 | 0 | Every payment carries its source id, source URL and the pipeline, ruleset and model versions that produced its derived fields. |
Data issues detected
0 critical55 warnings
| Severity | Issue type | Data source | Affected records | Recommended action |
|---|---|---|---|---|
| warning | Expenditure could not be mapped to a standard category | Category ruleset | 234,043 (27.6%) | Left as 'unclassified' rather than forced into a category. Extend the ruleset where a recurring description is missed. |
| warning | Same supplier, date and amount appears more than once | Council payment ledger | 139,073 (16.4%) | Retained. In a published ledger these are frequently genuine split invoices rather than double payments, so they are surfaced as a review signal rather than deduplicated. |
| warning | Missing expenditure description | Council payment ledger | 102,744 (12.1%) | No narrative means the category classifier must abstain. Request the expenditure description field from the publishing council. |
| warning | Missing department or service | Council payment ledger | 36,780 (4.3%) | Map the council's own service or cost-centre column where one exists; without it, housing spend can only be identified from free-text description. |
| warning | Unparseable date, amount or supplier | Council payment ledger | 8 (0.0%) | Rows quarantined and excluded from totals. Review the source file's encoding and date format mapping. |
| warning | Source has not refreshed within its expected cadence | Local Authority Housing Statistics open data 1978-79 to 2024-25 | 0 (0.0%) | Last retrieved 2026-07-20. Latest published period is 1978-79/2024-25. |
| warning | Source has not refreshed within its expected cadence | Leeds City Council spend over £500 (2023-07) | 0 (0.0%) | Last retrieved 2026-07-20. Latest published period is 2022-11-22/2023-07-31. |
| warning | Source has not refreshed within its expected cadence | Leeds City Council spend over £500 (2023-08) | 0 (0.0%) | Last retrieved 2026-07-20. Latest published period is 2022-12-22/2023-08-31. |
| warning | Source has not refreshed within its expected cadence | Leeds City Council spend over £500 (2023-09) | 0 (0.0%) | Last retrieved 2026-07-20. Latest published period is 2023-06-27/2023-09-29. |
| warning | Source has not refreshed within its expected cadence | Leeds City Council spend over £500 (2023-10) | 0 (0.0%) | Last retrieved 2026-07-20. Latest published period is 2023-06-14/2023-10-31. |
| warning | Source has not refreshed within its expected cadence | Leeds City Council spend over £500 (2023-11) | 0 (0.0%) | Last retrieved 2026-07-20. Latest published period is 2023-06-04/2023-11-30. |
| warning | Source has not refreshed within its expected cadence | Leeds City Council spend over £500 (2023-12) | 0 (0.0%) | Last retrieved 2026-07-20. Latest published period is 2023-06-13/2023-12-29. |
| warning | Source has not refreshed within its expected cadence | Leeds City Council spend over £500 (2024-01) | 0 (0.0%) | Last retrieved 2026-07-20. Latest published period is 2023-06-28/2024-01-31. |
| warning | Source has not refreshed within its expected cadence | Leeds City Council spend over £500 (2024-02) | 0 (0.0%) | Last retrieved 2026-07-20. Latest published period is 2023-06-23/2024-02-29. |
| warning | Source has not refreshed within its expected cadence | Leeds City Council spend over £500 (2024-03) | 0 (0.0%) | Last retrieved 2026-07-20. Latest published period is 2023-08-24/2024-03-28. |
| warning | Source has not refreshed within its expected cadence | Leeds City Council spend over £500 (2024-04) | 0 (0.0%) | Last retrieved 2026-07-20. Latest published period is 2023-11-30/2024-04-30. |
| warning | Source has not refreshed within its expected cadence | Leeds City Council spend over £500 (2024-05) | 0 (0.0%) | Last retrieved 2026-07-20. Latest published period is 2023-06-23/2024-05-31. |
| warning | Source has not refreshed within its expected cadence | Leeds City Council spend over £500 (2024-06) | 0 (0.0%) | Last retrieved 2026-07-20. Latest published period is 2024-01-04/2024-06-28. |
| warning | Source has not refreshed within its expected cadence | Leeds City Council spend over £500 (2024-07) | 0 (0.0%) | Last retrieved 2026-07-20. Latest published period is 2024-05-02/2024-07-31. |
| warning | Source has not refreshed within its expected cadence | Leeds City Council spend over £500 (2024-08) | 0 (0.0%) | Last retrieved 2026-07-20. Latest published period is 2024-06-06/2024-08-30. |
| warning | Source has not refreshed within its expected cadence | Leeds City Council spend over £500 (2024-09) | 0 (0.0%) | Last retrieved 2026-07-20. Latest published period is 2024-04-26/2024-09-30. |
| warning | Source has not refreshed within its expected cadence | Leeds City Council spend over £500 (2024-10) | 0 (0.0%) | Last retrieved 2026-07-20. Latest published period is 2024-08-01/2024-10-31. |
| warning | Source has not refreshed within its expected cadence | Leeds City Council spend over £500 (2024-11) | 0 (0.0%) | Last retrieved 2026-07-20. Latest published period is 2024-08-02/2024-11-29. |
| warning | Source has not refreshed within its expected cadence | Leeds City Council spend over £500 (2024-12) | 0 (0.0%) | Last retrieved 2026-07-20. Latest published period is 2024-08-07/2024-12-31. |
| warning | Source has not refreshed within its expected cadence | Leeds City Council spend over £500 (2025-01) | 0 (0.0%) | Last retrieved 2026-07-20. Latest published period is 2024-09-19/2025-01-31. |
| warning | Source has not refreshed within its expected cadence | Leeds City Council spend over £500 (2025-02) | 0 (0.0%) | Last retrieved 2026-07-20. Latest published period is 2024-11-29/2025-02-28. |
| warning | Source has not refreshed within its expected cadence | Leeds City Council spend over £500 (2025-03) | 0 (0.0%) | Last retrieved 2026-07-20. Latest published period is 2025-01-13/2025-03-31. |
| warning | Source has not refreshed within its expected cadence | Leeds City Council spend over £500 (2025-04) | 0 (0.0%) | Last retrieved 2026-07-20. Latest published period is 2025-02-06/2025-04-30. |
| warning | Source has not refreshed within its expected cadence | Leeds City Council spend over £500 (2025-05) | 0 (0.0%) | Last retrieved 2026-07-20. Latest published period is 2025-02-26/2025-05-30. |
| warning | Source has not refreshed within its expected cadence | Leeds City Council spend over £500 (2025-06) | 0 (0.0%) | Last retrieved 2026-07-20. Latest published period is 2025-03-29/2025-06-30. |
| warning | Source has not refreshed within its expected cadence | Leeds City Council spend over £500 (2025-07) | 0 (0.0%) | Last retrieved 2026-07-20. Latest published period is 2025-04-30/2025-07-30. |
| warning | Source has not refreshed within its expected cadence | Leeds City Council spend over £500 (2025-08) | 0 (0.0%) | Last retrieved 2026-07-20. Latest published period is 2025-06-17/2025-08-29. |
| warning | Source has not refreshed within its expected cadence | Leeds City Council spend over £500 (2025-09) | 0 (0.0%) | Last retrieved 2026-07-20. Latest published period is 2025-06-05/2025-09-30. |
| warning | Source has not refreshed within its expected cadence | Leeds City Council spend over £500 (2025-10) | 0 (0.0%) | Last retrieved 2026-07-20. Latest published period is 2025-07-24/2025-10-31. |
| warning | Source has not refreshed within its expected cadence | Leeds City Council spend over £500 (2025-11) | 0 (0.0%) | Last retrieved 2026-07-20. Latest published period is 2025-06-04/2025-11-28. |
| warning | Source has not refreshed within its expected cadence | Leeds City Council spend over £500 (2025-12) | 0 (0.0%) | Last retrieved 2026-07-20. Latest published period is 2025-10-01/2025-12-31. |
| warning | Source has not refreshed within its expected cadence | Leeds City Council spend over £500 (2026-01) | 0 (0.0%) | Last retrieved 2026-07-20. Latest published period is 2025-09-09/2026-01-31. |
| warning | Source has not refreshed within its expected cadence | Leeds City Council spend over £500 (2026-02) | 0 (0.0%) | Last retrieved 2026-07-20. Latest published period is 2025-11-19/2026-02-27. |
| warning | Source has not refreshed within its expected cadence | Leeds City Council spend over £500 (2026-03) | 0 (0.0%) | Last retrieved 2026-07-20. Latest published period is 2025-12-09/2026-03-31. |
| warning | Source has not refreshed within its expected cadence | Leicester City Council expenditure over £500 (2023) | 0 (0.0%) | Last retrieved 2026-07-20. Latest published period is 2023-01-03/2023-12-29. |
| warning | Source has not refreshed within its expected cadence | Leicester City Council expenditure over £500 (2024) | 0 (0.0%) | Last retrieved 2026-07-20. Latest published period is 2024-01-02/2024-12-31. |
| warning | Source has not refreshed within its expected cadence | Leicester City Council expenditure over £500 (2025) | 0 (0.0%) | Last retrieved 2026-07-20. Latest published period is 2024-07-07/2025-12-12. |
| warning | Source has not refreshed within its expected cadence | Kensington & Chelsea payments over £500 2023 Q3 | 0 (0.0%) | Last retrieved 2026-07-20. Latest published period is 2023-09-19/2023-12-30. |
| warning | Source has not refreshed within its expected cadence | Kensington & Chelsea payments over £500 2023 Q4 | 0 (0.0%) | Last retrieved 2026-07-20. Latest published period is 2023-12-27/2024-03-31. |
| warning | Source has not refreshed within its expected cadence | Kensington & Chelsea payments over £500 2024 Q1 | 0 (0.0%) | Last retrieved 2026-07-20. Latest published period is 2023-12-21/2024-06-30. |
| warning | Source has not refreshed within its expected cadence | Kensington & Chelsea payments over £500 2024 Q2 | 0 (0.0%) | Last retrieved 2026-07-20. Latest published period is 2024-06-27/2024-09-30. |
| warning | Source has not refreshed within its expected cadence | Kensington & Chelsea payments over £500 2024 Q3 | 0 (0.0%) | Last retrieved 2026-07-20. Latest published period is 2024-09-20/2024-12-31. |
| warning | Source has not refreshed within its expected cadence | Kensington & Chelsea payments over £500 2025 Q1 | 0 (0.0%) | Last retrieved 2026-07-20. Latest published period is 2025-04-01/2025-06-30. |
| warning | Source has not refreshed within its expected cadence | Kensington & Chelsea payments over £500 2025 Q2 | 0 (0.0%) | Last retrieved 2026-07-20. Latest published period is 2025-07-01/2025-09-30. |
| warning | Source has not refreshed within its expected cadence | Kensington & Chelsea payments over £500 2025 Q3 | 0 (0.0%) | Last retrieved 2026-07-20. Latest published period is 2025-09-24/2025-12-31. |
| warning | Source has not refreshed within its expected cadence | Kensington & Chelsea payments over £500 2025 Q4 | 0 (0.0%) | Last retrieved 2026-07-20. Latest published period is 2025-12-02/2026-03-31. |
| warning | Source has not refreshed within its expected cadence | Westminster expenditure over £500 2025-26 Q1 | 0 (0.0%) | Last retrieved 2026-07-20. Latest published period is 2025-04-01/2025-06-30. |
| warning | Source has not refreshed within its expected cadence | Westminster expenditure over £500 2025-26 Q2 | 0 (0.0%) | Last retrieved 2026-07-20. Latest published period is 2025-07-01/2025-09-25. |
| warning | Source has not refreshed within its expected cadence | Westminster expenditure over £500 2025-26 Q3 | 0 (0.0%) | Last retrieved 2026-07-20. Latest published period is 2025-10-01/2025-12-31. |
| warning | Source has not refreshed within its expected cadence | Westminster expenditure over £500 2025-26 Q4 | 0 (0.0%) | Last retrieved 2026-07-20. Latest published period is 2026-01-02/2026-03-31. |
| info | No contract reference published | Council payment ledger | 847,062 (100.0%) | UK councils are not required to publish a contract reference against each payment. Contract linking is therefore inferred from supplier, date, value and category rather than looked up. |
| info | Credit notes and reversed payments | Council payment ledger | 12,920 (1.5%) | Retained and netted off in totals. These are legitimate refunds, not errors, but they distort per-transaction averages. |