E63012505 /South West evidence profile
South West evidence profile
Trowbridge digital planning profile
Trowbridge is a medium, non-coastal built-up area in South West. ONS records show a 2021 population of 43,463; the population expanded quickly between 2001 and 2021, while the 2015 to 2024 employment series shows a flat employment count. This profile turns those public observations into a reviewable website-planning brief without claiming that the figures measure searches, leads or Mosalio's physical presence.
01 / Data snapshot
What the reviewed source records
- BUA24 code
- E63012505
- ITL1 region
- South West
- Coastal
- Non-coastal
- Income-deprivation flag
- Medium deprivation
02 / Context
Three comparisons, with the benchmark stated
20.6% above the 11.2% median across complete England records in this ONS file.
in line with the 0% dataset median.
42.6% below the 224.1% dataset median.
These medians use every complete England record accepted from the same ONS file. They are descriptive context, not targets, forecasts or a national demand model.
03 / Distinctive pattern
Where this record sits within 936 complete England profiles
Upper quartile · percentile position 89.5 of 100.
Lower quartile · percentile position 15.2 of 100.
Lower quartile · percentile position 19.7 of 100.
These are the three values furthest from the middle percentile position for this record. A higher position means a higher published value, not a better outcome or evidence of search demand.
Evidence fingerprint: sha256:9ef89e51bf1…e1f4d21f3c3f
04 / Constrained peers
Three named comparisons from the same reviewed source
Each peer is selected from all 936complete England records using the documented eight-metric distance. Deltas are Trowbridge minus the named peer; a plus sign means the value recorded for Trowbridge is higher.
Regional peer
Calne · E63012208
South West. Nearest complete record in South West. ONS classification: Nearer - Medium deprivation - Residential.
- 2021 population
- +23,738 people
- Population change, 2001 to 2021
- -7.8 pp
- Economic inactivity
- -0.2 pp
- Employment change, 2015 to 2024
- 0 pp
- 2023 median house price
- +£1,000
- House-price growth, 2001 to 2023
- +13.7 pp
- Population aged under 25
- -0.6 pp
- Population aged 65 or over
- -0.4 pp
Classification peer
Sleaford · E63009023
East Midlands. Nearest complete record outside South West with the same ONS combined classification. ONS classification: Further - Medium deprivation - Mixed.
- 2021 population
- +25,435 people
- Population change, 2001 to 2021
- +11 pp
- Economic inactivity
- -2.7 pp
- Employment change, 2015 to 2024
- 0 pp
- 2023 median house price
- +£61,000
- House-price growth, 2001 to 2023
- -13.6 pp
- Population aged under 25
- +0.2 pp
- Population aged 65 or over
- -1.7 pp
National peer
Daventry · E63010458
East Midlands. Nearest remaining complete England record. ONS classification: Nearer - Higher deprivation - Working.
- 2021 population
- +15,680 people
- Population change, 2001 to 2021
- +4 pp
- Economic inactivity
- +1.8 pp
- Employment change, 2015 to 2024
- 0 pp
- 2023 median house price
- +£11,000
- House-price growth, 2001 to 2023
- -5 pp
- Population aged under 25
- -0.8 pp
- Population aged 65 or over
- +1.9 pp
05 / Evidence synthesis
Trowbridge evidence synthesis: Population change, 2001 to 2021, House-price growth, 2001 to 2023, Economic inactivity
Trowbridge is recorded as a medium, non-coastal, mixed built-up area, further from a major town or city. This classification sets a transparent frame for the three observations below; it is not a persona, a service-area promise or proof of local search demand. Each finding pairs one distinctive percentile measure with one independently selected peer and one explicit validation route.
Eight-metric evidence matrix
The matrix shows every measure used by the peer-distance method, not only the three most distinctive values. Direction describes the published value relative to the middle percentile position; it is not a positive or negative judgement.
Highest-to-lowest percentile order: Population change, 2001 to 2021 → 2021 population → Population aged under 25 → 2023 median house price → Employment change, 2015 to 2024 → Population aged 65 or over → Economic inactivity → House-price growth, 2001 to 2023.
Furthest-to-nearest distance from the middle percentile: Population change, 2001 to 2021 → House-price growth, 2001 to 2023 → Economic inactivity → 2021 population → Population aged 65 or over → Employment change, 2015 to 2024 → Population aged under 25 → 2023 median house price.
Regional peer
Population change, 2001 to 2021: 31.8% · Calne delta -7.8 pp
The reviewed record positions Trowbridge at percentile 89.5 for population change, 2001 to 2021; its published value is 31.8% and its band is upper quartile. Using Calne as the regional peer, the profile-minus-peer delta is -7.8 pp; the peer was selected because nearest complete record in south west. For planning, document the observation beside update cadence, ownership and change-ready content models and require dated user research and a documented content-review cycle before treating the idea as an accepted requirement. The responsible interpretation stops short of intent: historic population change is neither a forecast nor a lead estimate.
Classification peer
House-price growth, 2001 to 2023: 181.5% · Sleaford delta -13.6 pp
The reviewed record positions Trowbridge at percentile 15.2 for house-price growth, 2001 to 2023; its published value is 181.5% and its band is lower quartile. The constrained classification comparison is Sleaford (E63009023). On this measure, Trowbridge minus that record is -13.6 pp; the selection basis is nearest complete record outside south west with the same ons combined classification. This evidence can narrow a discovery question around how dated economic context is labelled and maintained, while source-date checks and user tests for interpretation supplies the user-level check the aggregate data cannot provide. The boundary is important: historic price growth cannot support a current revenue claim.
National peer
Economic inactivity: 35.5% · Daventry delta +1.8 pp
For economic inactivity, the source reports 35.5% for Trowbridge. That sits in the lower quartile, 30.3 percentile points from the middle position. The same-source national check uses Daventry, classified as Nearer - Higher deprivation - Working. The Trowbridge-minus-Daventry delta on this metric is +1.8 pp. This evidence can narrow a discovery question around assisted, accessible and non-digital completion routes, while accessibility testing across real tasks and support-channel evidence supplies the user-level check the aggregate data cannot provide. The boundary is important: an aggregate inactivity rate cannot describe an individual visitor.
The distinctive metrics are not interchangeable: population change, 2001 to 2021, house-price growth, 2001 to 2023, economic inactivity each raise a different planning question when read beside Calne, Sleaford, Daventry. For Trowbridge, the safe next step is therefore three small verification tasks rather than one demographic persona, locality claim or generic area-page conclusion.
06 / Evidence interpretation
Planning signals before design decisions
Population context: 43,463 people in 2021
Trowbridge's recorded population changed from 32,977 in 2001 to 43,463 in 2021 (+31.8%). This historical direction can inform content governance and capacity planning, but it is not a forecast and does not establish demand for a particular service.
Audience context: 18.4% aged 65 or over
The 2021 age-group series records 8,121 people aged 0 to 15, 4,099 aged 16 to 24, 23,257 aged 25 to 64 and 7,993 aged 65 or over. Small differences from the headline population reflect the published source series; percentages here use the age-group total and should guide testing questions, not stereotypes.
Activity context: 35.5% economically inactive
ONS records economic inactivity at 35.5%. The published composition includes 21.7% retired, 4.1% long-term sick or disabled, 3.2% students and 3.8% looking after home or family. These categories support inclusive task design; they do not identify individual users or purchasing intent.
Economic context: £266,000 median house price in 2023
The median house-price series moved from £94,500 in 2001 to £242,500 in 2021 and £266,000 in 2023, a published change of +181.5%. It is contextual evidence only—not a current affordability, revenue or customer-value estimate.
07 / Independent question set
Questions this evidence cannot answer on its own
These questions convert the profile-specific observations into falsifiable discovery work. They are not recommendations to create a service, location or page, and each needs direct user or behavioural evidence before it changes a website brief.
- 01
If the regional peer delta of -7.8 pp is included in a brief, what decision about update cadence, ownership and change-ready content models could it inform and what result would falsify that hypothesis?
Calne is the constrained regional reference and is classified as Nearer - Medium deprivation - Residential; the question keeps historic population change is neither a forecast nor a lead estimate as an explicit limit.
- 02
How should a prototype test how dated economic context is labelled and maintained without assuming that Trowbridge's percentile 15.2 position predicts an individual user's needs?
This question is traceable to house-price growth, 2001 to 2023 at percentile 15.2 and a -13.6 pp profile-minus-peer difference, not to inferred local behaviour.
- 03
If the national peer delta of +1.8 pp is included in a brief, what decision about assisted, accessible and non-digital completion routes could it inform and what result would falsify that hypothesis?
Daventry is the constrained national reference and is classified as Nearer - Higher deprivation - Working; the question keeps an aggregate inactivity rate cannot describe an individual visitor as an explicit limit.
- 04
For Trowbridge's medium, non-coastal, mixed built-up area, further from a major town or city classification, how should population change, 2001 to 2021, house-price growth, 2001 to 2023, economic inactivity be tested as separate website hypotheses without turning the combined pattern into a claim about local demand?
Cross-check all three named comparisons—Calne, Sleaford, Daventry—and define a user-research or behavioural measure for each question before changing navigation, page scope or conversion paths. The observations share one source but do not demonstrate causation.
08 / Practical brief
Website-planning recommendations for this evidence pattern
- 01
Design for mixed local intent
Trowbridge has a mixed job-density classification. The information architecture should distinguish business, resident and visitor tasks where the organisation actually serves them, while sharing one evidence library so claims remain consistent across journeys.
- 02
Let the page complete the decision remotely
Trowbridge is further from a major town or city in the ONS classification. Put scope, process, timelines, accessibility options and meeting arrangements on the page so a user can evaluate fit without assuming a nearby branch or travelling for basic information.
- 03
Build a broad, task-led accessibility baseline
53.5% of the recorded 2021 age-group total is aged 25 to 64, with meaningful younger and older groups also present. Organise content by task, test keyboard and mobile use, and avoid designing around one assumed demographic persona.
- 04
Prepare the content model for change
Trowbridge recorded +31.8% population change from 2001 to 2021 and 0% employment change from 2015 to 2024. Use owned templates, update dates, accountable content roles and measurable conversion events so the site can evolve without publishing unreviewed route permutations.
09 / Method and limits
What this profile can—and cannot—support
This is a Mosalio editorial interpretation of the ONS May 2026 dataset for BUA24 code E63012505. The source periods differ by metric; values are historical, not live. The profile deliberately excludes ONS experimental visitor-to-resident fields and makes no claim about search volume, rankings, customers, a Mosalio office or physical delivery in Trowbridge.
Mosalio does not claim an office, staff member, customer, or physical-delivery presence in Trowbridge.
Source: Office for National Statistics, Understanding towns in England and Wales, investigating socioeconomic trends, released . This Mosalio interpretation was first published on and last reviewed on .
Contains public sector information licensed under the Open Government Licence v3.0.
How this page was made: Mosalio applies one documented, deterministic transform to the validated ONS record, calculates the displayed comparisons, and renders the result from source-controlled data. It is an automated public-data resource, not individually commissioned local market research. A portfolio-level editorial-value review checks every profile's source identity, distinctive metrics, peer evidence, synthesis and planning questions before index eligibility can be enabled.
Analysis basis: Midrank percentile across all accepted England records; a higher percentile means a higher published value, not a better outcome. Root-mean-square Euclidean distance across eight clipped robust z-scores; population and 2023 house price are log-transformed before median/MAD scaling.