Property evidence briefing
What changed in
UK property evidence.
What changed in the published evidence, which areas can be compared and where the data remains limited.
dated market states
+2,358,374 since the comparison release.
records on the public map
+97,874 since the previous comparable release.
comparison-ready areas
Of 361 local authorities tested against the same gate.
releases before trend monitoring
2 approved releases support comparison, not a market trend claim.
Series maturity
What this series can show.
Only releases using the same method count towards the six editions required before monitoring trends.
2 approved releases support comparison, not a market trend claim.
Evidence system change
What genuinely changed.
The crawler retained 2.36m additional dated states while the mapped current cross-section moved by only +97,874 records. That is evidence accumulation, not the creation of 2.36m new homes.
The share of the fixed national collection grid completed in the current release.
2,251 fixed cells changed their current-record total.
Net change after 97,874 records of national movement.
Growth in retained dated observations across the evidence estate.
Comparable local readings
Only the areas
that clear the gate.
An area can be compared only when both releases use the same method, are at least 90% complete, completion shifts by no more than 5 percentage points and the baseline contains at least 20 allocated records. Movement below remains movement in aggregate current records—not a verified change in homes, demand or achieved rent.
| Local authority | Region | Previous | Current | Movement | Completion |
|---|---|---|---|---|---|
| Harlow | East of England | 29 | 75 | +46 · +158.6% | 100% → 100% |
| Wigan | North West | 233 | 596 | +363 · +155.8% | 100% → 100% |
| East Dunbartonshire | Scotland | 116 | 293 | +177 · +152.6% | 100% → 100% |
| Chorley | North West | 155 | 369 | +214 · +138.1% | 100% → 100% |
| Barnsley | Yorkshire and The Humber | 189 | 443 | +254 · +134.4% | 100% → 100% |
| Basildon | East of England | 114 | 267 | +153 · +134.2% | 100% → 100% |
| Doncaster | Yorkshire and The Humber | 394 | 922 | +528 · +134.0% | 100% → 100% |
| Cannock Chase | West Midlands | 66 | 154 | +88 · +133.3% | 100% → 100% |
Reading note. The table ranks the largest percentage changes in mapped records, up or down, among the 339 areas that passed the gate. 22 areas were withheld from movement ranking in this edition.
Download all briefing dataCoverage maturation
A better reading
is not a market rise.
These areas gained the most completion between releases. Their current values are useful as a new evidence baseline, but the release-to-release record change is not ranked as a market signal.
- 01Test ValleySouth East89% → 100%
- 02North DevonSouth West83% → 90%
- 03CarmarthenshireWales93% → 100%
Regional quality ledger
Coverage before
comparison.
Regional totals are shown to expose the strength of the release, not to manufacture a league table. A region with few gated areas should not be interpreted as a clean regional movement.
| Region | Authorities | Comparable | Comparable share | Current records | Mean completion |
|---|---|---|---|---|---|
| East Midlands | 35 | 32 | 91.4% | 22,890 | 94.3% |
| East of England | 45 | 41 | 91.1% | 36,026 | 96.7% |
| London | 33 | 26 | 78.8% | 68,405 | 88% |
| North East | 12 | 12 | 100% | 14,577 | 100% |
| North West | 35 | 33 | 94.3% | 41,024 | 97.6% |
| Northern Ireland | 11 | 11 | 100% | 9,183 | 100% |
| Scotland | 32 | 32 | 100% | 45,790 | 100% |
| South East | 64 | 62 | 96.9% | 58,163 | 99.8% |
| South West | 27 | 26 | 96.3% | 73,664 | 99% |
| Wales | 22 | 21 | 95.5% | 36,163 | 100% |
| West Midlands | 30 | 30 | 100% | 26,410 | 99.7% |
| Yorkshire and The Humber | 15 | 13 | 86.7% | 32,361 | 97.8% |
UK area lens
Local context,
kept separate.
One authority from each UK nation shows how official rent and price evidence sits beside the observation layer. Measures remain unavailable where comparable local evidence is missing.
average monthly rent (August 2026) · 4.0% annual growth
- Sale price (July 2026)
- £319,860
- Gross yield proxy (July 2026)
- 5.7%
- Observation completion
- 100% → 100%
average monthly rent · growth unavailable
- Sale price (July 2026)
- £271,608
- Gross yield proxy (July 2026)
- Not available
- Observation completion
- 100% → 100%
average monthly rent (August 2026) · 6.8% annual growth
- Sale price (July 2026)
- £144,294
- Gross yield proxy (July 2026)
- 5.6%
- Observation completion
- 100% → 100%
average monthly rent · growth unavailable
- Sale price (July 2026)
- £227,275
- Gross yield proxy (July 2026)
- Not available
- Observation completion
- 100% → 100%
Figures above belong to this edition. Area profiles show the latest available evidence. Yield is an area proxy, not a return for an individual property.
Interpretation boundary
What this edition
cannot prove.
- 01
2 releases use the current method. At least six consistent releases are required before monitoring trends.
- 02
The 18 August 2026 area layer predates the immutable national manifest series. It remains available as historical evidence but is not counted as an approved national release.
- 03
Current record representations are not counts of unique homes, bookings, tenancies or complete local market inventory.
- 04
Local movement can reflect collection, geolocation and identity evidence as well as changes in the current market cross-section.
- 05
Long-let rent, growth, sale-price and yield measures use their separately stated official evidence periods and are not inferred from the observation layer.
Files and citation
Inspect the edition.
The briefing is a view over versioned releases. Its supporting JSON remains available after the latest alias moves on.
Upgraded Intelligence (2026), UK Property Evidence Briefing: 22 September 2026, UI-BRF-2026-09-22.