UPM-WIL-SLI-2026-10
The Wiltshire Short Let Index
A monthly measure of forward calendar unavailability across fixed market footprints around Swindon, Salisbury, Chippenham and Trowbridge.
Market snapshot
47%
Day 0 to 60 window unavailable
61 observed calendar dates
57%
Friday and Saturday dates unavailable
Within the day 0 to 30 window
78%
Peak date unavailable
Wednesday, 14 October
115
Unique homes in the reading
Across four fixed town footprints
What the latest reading shows
Wednesday, 14 October
Towns covered by the reading
This is a combined reading for four defined town footprints. It does not claim to measure every short let in Wiltshire.
The calendar pattern
Unavailable share from the observation date through day 30 inclusive.
- Friday and Saturday
- 57%7 points above the rest of the week
- Sunday to Thursday
- 50%Within the day 0 to 30 window
- First seven dates
- 64%Observation date through day 6
- Softest near term date
- 36%Sunday, 8 November
What cleared the release gate
Every near term date cleared the sample gate. No nightly rate is published because no valid price observations were present.
- Homes per primary date
- 115Fresh and deduplicated sample
- Primary dates published
- 31/31All dates cleared the minimum sample
- Valid supporting dates
- 61Observation date through day 60 inclusive
- Observed home dates
- 3,565Primary window across the four town footprints
Monthly index series
Each release retains the same four footprints, freshness rule and minimum sample threshold. Earlier published values remain visible. Changes in sample size mean the readings are not a like for like demand trend.
| Reading | Day 0 to 30 unavailable | Day 0 to 60 unavailable | Friday and Saturday unavailable | Unique homes | Observed |
|---|---|---|---|---|---|
| October 2026 | 52% | 47% | 57% | 115 | 14 October 2026 |
| September 2026 | 49% | 43% | 57% | 148 | 1 September 2026 |
How the Wiltshire sample was selected
The index narrows the national warehouse to four fixed town footprints, then removes duplicate homes. The wider corpus is shown for provenance and is not presented as the Wiltshire 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 Wiltshire reading was observed on 14 October 2026. The UK corpus is not the local sample. No nightly rate is published for this reading.
Methodology and publication notes
The index combines fresh observations from fixed footprints around Swindon, Salisbury, Chippenham and Trowbridge, then removes duplicate homes. An unavailable night may be reserved, owner blocked or withheld for another reason, so this is not realised occupancy.
Defined town footprints
Swindon and Salisbury use eight kilometre radii. Chippenham and Trowbridge use five kilometre radii.
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 and homes overlapping two footprints are grouped before calculation.
Complete horizons only
The primary window covers 31 calendar dates from the observation date through day 30 inclusive. The supporting window covers 61 dates through day 60 inclusive.
The sample can change
The October 2026 reading contains 115 homes, compared with 148 in September 2026. These are different samples, not a like for like measure of market demand.
Assess an individual Wiltshire property
The index is a market benchmark for four defined areas. A property forecast can account for the exact address, size, finish and operating plan.