Sources, methods and downloads
The same evidence release feeds this site and UK Facts dev. A website update is not a new review of every source.
Local interpretation reviewed 2026-10-17. Ward boundaries: May 2026; individual source retrieval dates and periods are below. Snapshot 5032dea62a24.
How the ward figures were built
2026 ONS official electoral ward membership and May 2026 generalised clipped boundaries. These are not police neighbourhoods or parishes.
Original Census 2021 observations. Chichester and Portsmouth use published ward values; Southampton uses sums of complete Census output-area counts through the official 2026 ONS best-fit lookup. Output areas can straddle ward boundaries; best-fit allocation is an approximation. Census privacy protection can cause small differences between totals and summed categories.
The same Census definitions, reference day and denominator rules are used. Small differences between direct ward publication and OA aggregation are possible; neither is a current population estimate.
Agent source/category/geography and calculation checks; independent analytical review remains outstanding.
not provided; electoral wards are not parishes
Ward sources and request records
May 2026 wards: generalised clipped boundaries, checked against 2026 ward-to-authority lookup
Office for National Statistics · checked 2026-10-17T09:57:14.669455+00:00
Official source ↗2 stored request receipts. Exact URLs, retrieval dates and checksums are in the download.
Population: Census 2021
Office for National Statistics via Nomis · checked 2026-10-17T09:57:14.669455+00:00
Official source ↗6 stored request receipts. Exact URLs, retrieval dates and checksums are in the download.
Age: Census 2021
Office for National Statistics via Nomis · checked 2026-10-17T09:57:14.669455+00:00
Official source ↗6 stored request receipts. Exact URLs, retrieval dates and checksums are in the download.
Deprivation: Census 2021
Office for National Statistics via Nomis · checked 2026-10-17T09:57:14.669455+00:00
Official source ↗6 stored request receipts. Exact URLs, retrieval dates and checksums are in the download.
Health: Census 2021
Office for National Statistics via Nomis · checked 2026-10-17T09:57:14.669455+00:00
Official source ↗6 stored request receipts. Exact URLs, retrieval dates and checksums are in the download.
Tenure: Census 2021
Office for National Statistics via Nomis · checked 2026-10-17T09:57:14.669455+00:00
Official source ↗6 stored request receipts. Exact URLs, retrieval dates and checksums are in the download.
Qualifications: Census 2021
Office for National Statistics via Nomis · checked 2026-10-17T09:57:14.669455+00:00
Official source ↗6 stored request receipts. Exact URLs, retrieval dates and checksums are in the download.
Census 2021 output areas to 2026 wards best-fit lookup
Office for National Statistics · checked 2026-10-17T09:57:14.669455+00:00
Official source ↗1 stored request receipts. Exact URLs, retrieval dates and checksums are in the download.
Street-level mapped police records
Police.uk / Home Office and territorial police forces · checked 2026-10-17T09:57:14.669455+00:00
Official source ↗Single padded rectangle per authority-month, deduplicate nonblank numeric IDs within each response; retain idless rows; point-in-polygon into fixed May 2026 official ward geometry; no nearest-boundary reassignment. ASB and BTP are excluded from crime totals. The same ward boundaries apply to all displayed months. Reporting completeness is not guaranteed by API availability.
72 stored request receipts. Exact URLs, retrieval dates and checksums are in the download.
Local sources
- ONS / Nomis ↗ · checked 2026-10-03
Imported from the published Southampton Counts evidence register; the original review date is retained. Evidence file/hash/table details remain in the full baseline download.
- ONS / HM Land Registry ↗ · checked 2026-10-03
Imported from the published Southampton Counts evidence register; the original review date is retained. Evidence file/hash/table details remain in the full baseline download.
- NHS Business Services Authority ↗ · checked 2026-10-03
Imported from the published Southampton Counts evidence register; the original review date is retained. Evidence file/hash/table details remain in the full baseline download.
- Department for Education ↗ · checked 2026-10-03 · published 2026-03-26
Imported from the published Southampton Counts evidence register; the original review date is retained. Evidence file/hash/table details remain in the full baseline download.
- Southampton Data Observatory / Defra ↗ · checked 2026-10-03
Imported from the published Southampton Counts evidence register; the original review date is retained. Evidence file/hash/table details remain in the full baseline download.
- Southampton City Council ↗ · checked 2026-10-03
Imported from the published Southampton Counts evidence register; the original review date is retained. Evidence file/hash/table details remain in the full baseline download.
- Southampton City Council / DfT ↗ · checked 2026-10-03
Imported from the published Southampton Counts evidence register; the original review date is retained. Evidence file/hash/table details remain in the full baseline download.
- ONS / Home Office ↗ · checked 2026-10-03 · published 2026-07-23
Imported from the published Southampton Counts evidence register; the original review date is retained. Evidence file/hash/table details remain in the full baseline download.
- MHCLG ↗ · checked 2026-10-03 · published 2026-08-17
Imported from the published Southampton Counts evidence register; the original review date is retained. Evidence file/hash/table details remain in the full baseline download.
- MHCLG ↗ · checked 2026-10-03 · published 2026-08-13
Imported from the published Southampton Counts evidence register; the original review date is retained. Evidence file/hash/table details remain in the full baseline download.
- DWP ↗ · checked 2026-10-03 · published 2026-03-26
Imported from the published Southampton Counts evidence register; the original review date is retained. Evidence file/hash/table details remain in the full baseline download.
- ONS ↗ · checked 2026-10-03 · published 2026-03-26
Imported from the published Southampton Counts evidence register; the original review date is retained. Evidence file/hash/table details remain in the full baseline download.
- Department for Transport ↗ · checked 2026-10-03 · published 2026-07-29
Imported from the published Southampton Counts evidence register; the original review date is retained. Evidence file/hash/table details remain in the full baseline download.
- Council: Bargate development traffic proposals, statement of reasons ↗ · checked 2026-10-17 · published 2026-05-29
Proposed traffic-order consultation evidence; it confirms development was underway, not completion or that the road order was subsequently made.
- Council: Outdoor Sports Centre redevelopment ↗ · checked 2026-10-17
Official council publication read through indexed publisher text; direct council HTML retrieval returned 403. Publication dates and current delivery status are not interchangeable.
- Council Cabinet public reports, 24 February 2026 ↗ · checked 2026-10-17 · published 2026-02-24
Growth and Prosperity delivery programme, page 96: £36m Outdoor Sports Centre regeneration, aiming for early 2027. This is a planned outcome, not proof of completion.
- Council: Winchester Road access improvements, October 2026 update ↗ · checked 2026-10-17
Live council transport page read directly on 17 October. Start on 19 October 2026 remains a future scheduled event at this review.
- Council: Northam Rail Bridge funding update ↗ · checked 2026-10-17 · published 2026-03-26
Official council publication read through indexed publisher text; direct council HTML retrieval returned 403. Publication dates and current delivery status are not interchangeable. The council says funding approval is still required.
- Council: 2026/27 Housing Revenue Account budget report, paragraphs 53–54 ↗ · checked 2026-10-17 · published 2026-02-16
Report version dated in filename; paragraph 53 identifies delivery partners and paragraph 54 describes planned applications, not completed homes.
- Council Housing Scrutiny Panel public reports, 6 November 2025 ↗ · checked 2026-10-17 · published 2025-11-06
Page 54 states River Itchen flood-scheme delivery timescales remain subject to funding. This supersedes treating the older provisional 2026 start as an actual start.
- Council: River Itchen flood scheme ground investigations ↗ · checked 2026-10-17
Official council publication read through indexed publisher text; direct council HTML retrieval returned 403. Publication dates and current delivery status are not interchangeable. January 2024 ground investigations are historical evidence, not proof that construction has begun.
- Council: work begins on Mayflower rehearsal studios ↗ · checked 2026-10-17 · published 2025-06-20
Official council publication read through indexed publisher text; direct council HTML retrieval returned 403. Publication dates and current delivery status are not interchangeable.
- Council: Southampton Renaissance Vision launch ↗ · checked 2026-10-17 · published 2025-02-17
Official council publication read through indexed publisher text; direct council HTML retrieval returned 403. Publication dates and current delivery status are not interchangeable. A partnership vision is not a fully funded construction programme.
- Council: special-school expansion decision report ↗ · checked 2026-10-17
Report describes Great Oaks/Vermont proposals and a proposed implementation date of 20 April 2026. This report alone does not confirm opening or delivery.
- Council: Growth and Prosperity programme reported to scrutiny ↗ · checked 2026-10-17 · published 2025-09-18
Programme describes two special-education facilities for 180 children, with 2026 intended delivery. Current completion remains unverified.
- Council: Bus Service Improvement Plan and current updates ↗ · checked 2026-10-17
The council publishes scheme and service updates, including August 2026 information. Timetables may change; use the current operator timetable for travel.
- Council decision: transport implementation plan 2025–28 ↗ · checked 2026-10-17
The official decision page links the implementation programme. Inclusion in a plan does not mean each scheme is funded or built.
- Care Quality Commission: Southampton adult social care assessment ↗ · checked 2026-10-17 · published 2026-06-17
Requires improvement. A regulator assessment of adult social care, not a rating of every council service.
- Southampton Data Observatory: Safe City Strategic Assessment ↗ · checked 2026-10-17
City partnership assessment and strategy evidence; city totals and street-mapped police data are different measures.
- Council: current planning policy and development-plan timetable ↗ · checked 2026-10-17
Use the published Local Development Scheme for the current timetable; an emerging plan is not an adopted plan.
- UK Facts: existing Southampton strengths and pressures ↗ · checked 2026-10-17
Editorial continuity reference. Local actions below develop existing housing, inequality, transport, regeneration, care and flood themes; this is not an external source for statistics.
- Council: report fly-tipping ↗ · checked 2026-10-17
Practical reporting route; recorded incidents depend on reporting and council recording practices.
- Office for Students ↗ · checked 2026-10-03 · published 2026-09-16
Original provider-level Office for Students observations retained from the published Counts explorer. These are not counts of students living in the city.
Limits and assurance
- Actions are UK Facts proposals for implementation and scrutiny, not invented council commitments, funded promises or assessed forecasts. Existing official schemes retain their own stages.
- Project stages describe the latest dated evidence retrieved. A source checked today does not establish today’s construction status; old intended opening dates are never treated as completion.
- Some council pages returned 403 to direct retrieval. Indexed official publication text was used where noted; unsupported budgets, deadlines and outcomes are left unverified.
- Project locations are named accurately. Ward codes are only assigned where verified; an empty code list is not a claim that the project affects no wards.
- Ward populations and poverty are official local estimates. City or service-area values must not be presented as ward measurements. Police street locations and electoral boundaries require their own labelled mapping method.
- The complete previously published baseline is retained separately: 89 core records, 466 explorer observations, 11 explorer time series and 17 ward profiles. Importing it does not refresh its original source-review dates.
- The former Southampton SWOT themes are preserved where supported; broad claims such as Freeport geography, future jobs or automation losses are not turned into new quantified findings without suitable local evidence.
- Agent source and consistency checks are not independent analytical assurance.
Our approach follows the AQuA Book: keep a clear question, record sources and assumptions, test calculations and show uncertainty. Automated checks are not independent analytical review or certification.
The AQuA Book ↗
Council documents are checked for changes; a changed page goes into a review queue. It does not automatically become a new claim or a completed project. Source failures retain the last successful evidence and are recorded.