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Transparency
Data provenance — Westminster
Every figure on the Westminster page links back to an official source. Here is the full manifest — what each data point is, where it comes from, and when it was last verified.
How we source Westminster data
The bar is: every number traceable to a .gov.uk URL.
Official UK government data only. No third-party aggregators. All figures come from GOV.UK bulk datasets (MHCLG Revenue Account, ONS, DEFRA, LGBCE) or from Westminster's own .gov.uk website.
Multi-source triangulation. Budget and population figures are cross-checked against at least two sources (e.g. council's own budget report vs. MHCLG RA return). If two sources disagree, we flag it in our internal validator and hold off publishing until we can verify the correct figure.
Dated and auditable. Every data point records the date it was verified. Spotted a discrepancy? Contact us and we'll investigate transparently — corrections are published on our change log.
Detailed data last verified: 2026-04-23
Dataset version: 49de0cd (2026-10-03) — every figure on this page comes from this exact dataset snapshot.
National sources (every council)
Bulk datasets used for every council on CivAccount. Council tax, service budgets, and population all come from these.
- Open source (opens in new tab)
Council Tax 2025-26
GOV.UK (MHCLG)
- Band D council tax
- Precepts (parish, police, fire)
- Tax rise percentage vs prior year
- Open source (opens in new tab)
Revenue Account (RA) 2025-26
GOV.UK (MHCLG)
- Net service budget (all 10 categories)
- Gross expenditure
- Total service budget
- Open source (opens in new tab)
Revenue Outturn (RO) 2024-25
GOV.UK (MHCLG)
- Final out-turn spending
- Variance vs budget
- Open source (opens in new tab)
ONS Mid-2024 Population Estimates
Office for National Statistics
- Population
- Per-capita calculations
- Open source (opens in new tab)
Local Government Boundary Commission (LGBCE)
LGBCE
- Council type
- Ward structure
- Councillor numbers
- Open source (opens in new tab)
DEFRA Local Authority Waste Statistics 2022-23
DEFRA
- Waste sent to recycling
- Waste sent to energy from waste
- Waste sent to landfill
Field-level sources (6)
Council-specific fields with a direct source URL. Each links to the exact .gov.uk document CivAccount pulled the data from.
Chief executive
Live pageWestminster — Executive Leadership Team
Accessed 2026-04-23
Chief executive salary
2023-24Westminster City Council Annual Accounts 2023-24 — Note 10a Senior Officers' Remuneration (S Love)
Page 72 — the source link opens at this page
“Chief Executive - S Love 232,389 - - 39,041 - - - 271,430”
See the original page (screenshot) (opens in new tab)Accessed 2026-04-23
sha256 d37c2bef29ba…
Council leader
Live pageWestminster — Leader Cllr Adam Hug
Accessed 2026-04-23
Councillor basic allowance
2025-26Westminster — Members' allowances
Accessed 2026-04-23
reserves
2023-24Westminster City Council Annual Accounts 2023-24 — Movement in Reserves Statement (General Fund sub-total at 31 March 2024)
Page 46 — the source link opens at this page
“Balance at 31 March 2024 (59,671) (287,106) (4,001) (350,778)”
See the original page (screenshot) (opens in new tab)Accessed 2026-04-23
sha256 d37c2bef29ba…
total_councillors
Live pageWestminster — member index
Accessed 2026-04-23
Want the full methodology?
How we collect, validate, and present council data — plus our correction policy, open data licence, and update cadence.