E63013303 /South East evidence profile
South East evidence profile
Haywards Heath digital planning profile
Haywards Heath is a medium, non-coastal built-up area in South East. ONS records show a 2021 population of 40,528; 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
- E63013303
- ITL1 region
- South East
- Coastal
- Non-coastal
- Income-deprivation flag
- Lower deprivation
02 / Context
Three comparisons, with the benchmark stated
29.8% above the 11.2% median across complete England records in this ONS file.
in line with the 0% dataset median.
28.3% 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 94.6 of 100.
Lower quartile · percentile position 12.9 of 100.
Upper quartile · percentile position 87 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: sha256:8ef8c66084d…ca1badd47d32
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 Haywards Heath minus the named peer; a plus sign means the value recorded for Haywards Heath is higher.
Regional peer
Horley (Reigate and Banstead) · E63012884
South East. Nearest complete record in South East. ONS classification: Nearer - Lower deprivation - Residential.
- 2021 population
- +13,461 people
- Population change, 2001 to 2021
- +11.4 pp
- Economic inactivity
- +2.7 pp
- Employment change, 2015 to 2024
- 0 pp
- 2023 median house price
- +£5,000
- House-price growth, 2001 to 2023
- -0.7 pp
- Population aged under 25
- -0.4 pp
- Population aged 65 or over
- +2.7 pp
Classification peer
Leighton Buzzard · E63011214
East of England. Nearest complete record outside South East with the same ONS combined classification. ONS classification: Nearer - Lower deprivation - Mixed.
- 2021 population
- -2,208 people
- Population change, 2001 to 2021
- +10.5 pp
- Economic inactivity
- +1.7 pp
- Employment change, 2015 to 2024
- 0 pp
- 2023 median house price
- +£75,000
- House-price growth, 2001 to 2023
- -52.7 pp
- Population aged under 25
- -0.1 pp
- Population aged 65 or over
- +1.9 pp
National peer
Ely · E63010102
East of England. Nearest remaining complete England record. ONS classification: Further - Lower deprivation - Working.
- 2021 population
- +21,343 people
- Population change, 2001 to 2021
- +3.5 pp
- Economic inactivity
- -0.9 pp
- Employment change, 2015 to 2024
- -10 pp
- 2023 median house price
- +£54,500
- House-price growth, 2001 to 2023
- -30.5 pp
- Population aged under 25
- +1.2 pp
- Population aged 65 or over
- -0.8 pp
05 / Evidence synthesis
Haywards Heath evidence synthesis: Population change, 2001 to 2021, Economic inactivity, 2023 median house price
Haywards Heath is recorded as a medium, non-coastal, mixed 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 → 2021 population → Population aged under 25 → Population aged 65 or over → Employment change, 2015 to 2024 → House-price growth, 2001 to 2023 → Economic inactivity.
Furthest-to-nearest distance from the middle percentile: Population change, 2001 to 2021 → Economic inactivity → 2023 median house price → 2021 population → House-price growth, 2001 to 2023 → Employment change, 2015 to 2024 → Population aged 65 or over → Population aged under 25.
Regional peer
Population change, 2001 to 2021: 41% · Horley (Reigate and Banstead) delta +11.4 pp
The reviewed record positions Haywards Heath at percentile 94.6 for population change, 2001 to 2021; its published value is 41% and its band is highest decile. The constrained regional comparison is Horley (Reigate and Banstead) (E63012884). On this measure, Haywards Heath minus that record is +11.4 pp; the selection basis is nearest complete record in south east. 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. No user or market conclusion follows automatically; historic population change is neither a forecast nor a lead estimate.
Classification peer
Economic inactivity: 34% · Leighton Buzzard delta +1.7 pp
Haywards Heath's economic inactivity is 34%, a lower quartile result at percentile 12.9 among 936 complete England records. Using Leighton Buzzard as the classification peer, the profile-minus-peer delta is +1.7 pp; the peer was selected because nearest complete record outside south east with the same ons combined classification. Its practical use is to frame—not answer—a question about assisted, accessible and non-digital completion routes; the next evidence should come from accessibility testing across real tasks and support-channel evidence. This remains contextual evidence—an aggregate inactivity rate cannot describe an individual visitor.
National peer
2023 median house price: £420,000 · Ely delta +£54,500
Haywards Heath's 2023 median house price is £420,000, a upper quartile result at percentile 87 among 936 complete England records. For a bounded comparison rather than a national average, Ely supplies the national reference; Haywards Heath is +£54,500 from it on the displayed scale. Its practical use is to frame—not answer—a question about pricing clarity, qualification steps and expectation setting; the next evidence should come from comprehension tests using the organisation's real offer and fees. The responsible interpretation stops short of intent: a median house price is not a household affordability measure.
Haywards Heath's evidence pattern combines the medium, non-coastal, mixed built-up area, nearer to a major town or city frame with three percentile observations and peer-specific deltas. That combination can make discovery more precise, but it cannot establish what residents want or whether a service has local demand. Decisions should remain reversible until direct research or measured website behaviour confirms them.
06 / Evidence interpretation
Planning signals before design decisions
Population context: 40,528 people in 2021
Haywards Heath's recorded population changed from 28,738 in 2001 to 40,528 in 2021 (+41%). 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: 19% aged 65 or over
The 2021 age-group series records 8,258 people aged 0 to 15, 3,093 aged 16 to 24, 21,470 aged 25 to 64 and 7,679 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: 34% economically inactive
ONS records economic inactivity at 34%. The published composition includes 22.7% retired, 2.2% long-term sick or disabled, 3.5% students and 3.7% looking after home or family. These categories support inclusive task design; they do not identify individual users or purchasing intent.
Economic context: £420,000 median house price in 2023
The median house-price series moved from £142,000 in 2001 to £400,000 in 2021 and £420,000 in 2023, a published change of +195.8%. 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 +11.4 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?
The prompt combines one distinctive metric with the named regional comparator selected by the eight-metric method. It does not treat either record as search, lead or customer evidence.
- 02
What evidence would show that the economic inactivity contrast between Haywards Heath and Leighton Buzzard should alter assisted, accessible and non-digital completion routes, rather than remain background context?
Leighton Buzzard is the constrained classification reference and is classified as Nearer - Lower deprivation - Mixed; the question keeps an aggregate inactivity rate cannot describe an individual visitor as an explicit limit.
- 03
What evidence would show that the 2023 median house price contrast between Haywards Heath and Ely should alter pricing clarity, qualification steps and expectation setting, rather than remain background context?
Evidence basis: £420,000, upper quartile, with Haywards Heath minus the national peer equal to +£54,500. Validation route: comprehension tests using the organisation's real offer and fees.
- 04
For Haywards Heath's medium, non-coastal, mixed built-up area, nearer to a major town or city classification, how should population change, 2001 to 2021, economic inactivity, 2023 median house price be tested as separate website hypotheses without turning the combined pattern into a claim about local demand?
Cross-check all three named comparisons—Horley (Reigate and Banstead), Leighton Buzzard, Ely—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
Haywards Heath 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
Differentiate from the nearby major centre
Haywards Heath 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
Build a broad, task-led accessibility baseline
53% 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
Haywards Heath recorded +41% 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 E63013303. 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 Haywards Heath.
Mosalio does not claim an office, staff member, customer, or physical-delivery presence in Haywards Heath.
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.