E63012124 /South West evidence profile
South West evidence profile
Portishead digital planning profile
Portishead is a medium, coastal built-up area in South West. ONS records show a 2021 population of 26,351; the population expanded quickly between 2001 and 2021, while the 2015 to 2024 employment series shows strong employment expansion. 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
- E63012124
- ITL1 region
- South West
- Coastal
- Coastal
- Income-deprivation flag
- Lower deprivation
02 / Context
Three comparisons, with the benchmark stated
42.6% above the 11.2% median across complete England records in this ONS file.
11.1% above the 0% dataset median.
17.5% 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
Highest decile · percentile position 97.5 of 100.
Upper quartile · percentile position 83.1 of 100.
Middle half · percentile position 70.8 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: sha256:402cbf1dde4…dd959a0ecec9
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 Portishead minus the named peer; a plus sign means the value recorded for Portishead is higher.
Regional peer
Westbury (Wiltshire) · E63012691
South West. Nearest complete record in South West. ONS classification: Further - Medium deprivation - Residential.
- 2021 population
- +9,957 people
- Population change, 2001 to 2021
- +7.4 pp
- Economic inactivity
- +2.8 pp
- Employment change, 2015 to 2024
- +11.1 pp
- 2023 median house price
- +£113,502
- House-price growth, 2001 to 2023
- -23.6 pp
- Population aged under 25
- -1.9 pp
- Population aged 65 or over
- +4.4 pp
Classification peer
North Hykeham · E63008773
East Midlands. Nearest complete record outside South West with the same ONS combined classification. ONS classification: Nearer - Lower deprivation - Working.
- 2021 population
- +9,496 people
- Population change, 2001 to 2021
- +11.8 pp
- Economic inactivity
- 0 pp
- Employment change, 2015 to 2024
- -11.1 pp
- 2023 median house price
- +£157,500
- House-price growth, 2001 to 2023
- -22.1 pp
- Population aged under 25
- +0.1 pp
- Population aged 65 or over
- +0.8 pp
National peer
Wymondham (South Norfolk) · E63009788
East of England. Nearest remaining complete England record. ONS classification: Nearer - Lower deprivation - Mixed.
- 2021 population
- +9,539 people
- Population change, 2001 to 2021
- +6.6 pp
- Economic inactivity
- +0.2 pp
- Employment change, 2015 to 2024
- +11.1 pp
- 2023 median house price
- +£110,000
- House-price growth, 2001 to 2023
- -18.1 pp
- Population aged under 25
- -0.9 pp
- Population aged 65 or over
- +1.9 pp
05 / Evidence synthesis
Portishead evidence synthesis: Population change, 2001 to 2021, 2023 median house price, Population aged 65 or over
Portishead is recorded as a medium, coastal, working built-up area, nearer to 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 → 2023 median house price → Population aged 65 or over → Employment change, 2015 to 2024 → 2021 population → Population aged under 25 → Economic inactivity → House-price growth, 2001 to 2023.
Furthest-to-nearest distance from the middle percentile: Population change, 2001 to 2021 → 2023 median house price → Population aged 65 or over → Employment change, 2015 to 2024 → 2021 population → House-price growth, 2001 to 2023 → Economic inactivity → Population aged under 25.
Regional peer
Population change, 2001 to 2021: 53.8% · Westbury (Wiltshire) delta +7.4 pp
The reviewed record positions Portishead at percentile 97.5 for population change, 2001 to 2021; its published value is 53.8% and its band is highest decile. The same-source regional check uses Westbury (Wiltshire), classified as Further - Medium deprivation - Residential. The Portishead-minus-Westbury (Wiltshire) delta on this metric is +7.4 pp. Treat this combination as a hypothesis about update cadence, ownership and change-ready content models, and test it through dated user research and a documented content-review cycle. No user or market conclusion follows automatically; historic population change is neither a forecast nor a lead estimate.
Classification peer
2023 median house price: £392,500 · North Hykeham delta +£157,500
Among the eight reviewed measures, 2023 median house price stands out for Portishead at £392,500; its percentile position is 83.1 and its band is upper quartile. Against North Hykeham's reviewed classification record, the displayed delta is +£157,500. That comparator comes from the documented rule: nearest complete record outside south west with the same ons combined classification. A defensible brief can turn the pair into a verification task for pricing clarity, qualification steps and expectation setting, using comprehension tests using the organisation's real offer and fees before changing the information architecture. Keep the inference narrow: a median house price is not a household affordability measure.
National peer
Population aged 65 or over: 23.1% · Wymondham (South Norfolk) delta +1.9 pp
Among the eight reviewed measures, population aged 65 or over stands out for Portishead at 23.1%; its percentile position is 70.8 and its band is middle half. The constrained national comparison is Wymondham (South Norfolk) (E63009788). On this measure, Portishead minus that record is +1.9 pp; the selection basis is nearest remaining complete england record. For planning, document the observation beside readability, keyboard access and assisted alternatives and require inclusive usability sessions and accessibility conformance checks before treating the idea as an accepted requirement. This remains contextual evidence—an age-group share does not determine digital ability.
The distinctive metrics are not interchangeable: population change, 2001 to 2021, 2023 median house price, population aged 65 or over each raise a different planning question when read beside Westbury (Wiltshire), North Hykeham, Wymondham (South Norfolk). For Portishead, 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: 26,351 people in 2021
Portishead's recorded population changed from 17,130 in 2001 to 26,351 in 2021 (+53.8%). 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: 23.1% aged 65 or over
The 2021 age-group series records 5,043 people aged 0 to 15, 1,942 aged 16 to 24, 13,277 aged 25 to 64 and 6,092 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: 37.9% economically inactive
ONS records economic inactivity at 37.9%. The published composition includes 28.4% retired, 2.1% long-term sick or disabled, 3.1% students and 2.8% looking after home or family. These categories support inclusive task design; they do not identify individual users or purchasing intent.
Economic context: £392,500 median house price in 2023
The median house-price series moved from £128,000 in 2001 to £375,000 in 2021 and £392,500 in 2023, a published change of +206.6%. 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
Before prioritising update cadence, ownership and change-ready content models, which part of dated user research and a documented content-review cycle would verify whether this population change, 2001 to 2021 observation matters to users in Portishead?
This question is traceable to population change, 2001 to 2021 at percentile 97.5 and a +7.4 pp profile-minus-peer difference, not to inferred local behaviour.
- 02
How should a prototype test pricing clarity, qualification steps and expectation setting without assuming that Portishead's percentile 83.1 position predicts an individual user's needs?
North Hykeham is the constrained classification reference and is classified as Nearer - Lower deprivation - Working; the question keeps a median house price is not a household affordability measure as an explicit limit.
- 03
Which real user task would justify changing readability, keyboard access and assisted alternatives after seeing Portishead's population aged 65 or over position and its +1.9 pp difference from Wymondham (South Norfolk)?
The prompt combines one distinctive metric with the named national comparator selected by the eight-metric method. It does not treat either record as search, lead or customer evidence.
- 04
For Portishead's medium, coastal, working built-up area, nearer to a major town or city classification, how should population change, 2001 to 2021, 2023 median house price, population aged 65 or over be tested as separate website hypotheses without turning the combined pattern into a claim about local demand?
Cross-check all three named comparisons—Westbury (Wiltshire), North Hykeham, Wymondham (South Norfolk)—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
Separate employer and customer journeys
Portishead is classified as a working town. A useful website brief should separate recruitment, procurement and customer tasks, then give each journey its own proof, contact route and success measure instead of forcing every visitor through one generic enquiry page.
- 02
Differentiate from the nearby major centre
Portishead is nearer to a major town or city. Use specific offer boundaries, proof and response expectations to explain why the organisation is relevant; do not rely on a place-name heading or create a doorway that simply redirects users to a national service page.
- 03
Treat readability as a conversion requirement
23.1% of the recorded 2021 age-group total is aged 65 or over. Use plain language, strong focus states, generous type, keyboard-operable controls and a non-digital contact alternative; validate these choices with real users rather than assuming age determines ability.
- 04
Prepare the content model for change
Portishead recorded +53.8% population change from 2001 to 2021 and +11.1% 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 E63012124. 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 Portishead.
Mosalio does not claim an office, staff member, customer, or physical-delivery presence in Portishead.
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.