Monthly market index UPM-BTH-SLI-2026-09
The Bath Short Let Index
A monthly measure of forward calendar unavailability across tracked short lets within ten kilometres of Bath city centre.
01
Current evidence
Market snapshot
43%
Next 90 nights unavailable
Whole valid market sample
74%
Friday and Saturday nights
Next 30 nights unavailable
80%
Peak night
Saturday, 12 September
269
Unique homes in the reading
Every near term night cleared the gate
02
Comparative view
What the latest reading shows
Saturday, 12 September
03
Reading detail
Weekend strength and sample depth
The first Bath reading shows a clear weekend premium, supported by a stable near term sample rather than a small set of visible homes.
The demand pattern
Unavailable share within the next 30 nights.
- Friday and Saturday
- 74%Nineteen points above the rest of the week
- Sunday to Thursday
- 55%Next 30 nights
- First seven nights
- 67%The fullest horizon cut
- Softest night
- 39%Thursday, 1 October
What cleared the release gate
Availability and price evidence are assessed separately.
- Unique homes
- 269Fresh and geographically valid sample
- Near term nights published
- 31/31All dates cleared the minimum sample
- Home nights observed
- 8,339Across the next 31 calendar dates
- Valid priced homes
- 0No nightly rate is published
04
Published data
Monthly index series
Each future release will use the same geography, freshness rule and minimum sample threshold.
| Reading | Next 30 nights | Next 90 nights | Weekend nights | Unique homes | Observed |
|---|---|---|---|---|---|
| September 2026 | 60% | 43% | 74% | 269 | 1 September 2026 |
05
Data coverage
From the UK corpus to one Bath reading
The Bath index narrows the national warehouse to fresh, deduplicated homes inside its fixed footprint. The wider corpus is shown for provenance, not presented as the Bath sample.
10.36M
Night-level records
Observed availability states in the research warehouse2.07M
Priced night records
Rows carrying a usable nightly price observation120,143
Listing profiles catalogued
Discovery coverage before freshness and market-level deduplication99.6%
Profiles geocoded
119,707 profiles with usable coordinatesWarehouse coverage spans 4 June to 15 August 2026. Profile counts describe the UK discovery corpus, not active supply in this market; every published index applies its own geography, freshness, duplicate and minimum-sample rules. The corpus totals are the conservative 16 August audit. This market reading uses a later snapshot observed on 1 September 2026.
06
Transparency
Methodology and publication notes
The index uses the latest valid availability observation for each deduplicated short let inside a fixed ten kilometre Bath footprint. An unavailable night may be reserved, owner blocked or withheld for another reason, so this is not realised occupancy.
Fixed Bath footprint
Every release uses the same ten kilometre radius around Bath city centre.
Fresh observations only
A calendar state must have been observed within five days of the reading date.
Each home counted once
Listings within 150 metres are grouped before the daily unavailable share is calculated.
No unsupported rate
The September snapshot contains no valid priced home sample, so no nightly rate is published.
Supporting publications
Bath property managementMarket ReportsCardiff Short Let IndexWiltshire Short Let IndexProperty owners
Assess an individual Bath property
The index is a market benchmark. A property forecast can account for the exact address, size, finish and operating plan.