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Sources and licences

Our analysis connects attributed source facts. Original publications remain the work of their publishers, with their own rights and licence conditions.

Each chart’s Origin identifies the publication, dates, location and evidence behind the selected value. Independent summaries and normalised facts are distinguished from source wording.

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Using the report

BuildPrompt’s original analysis, design and software belong to BuildPrompt or its licensors. This does not give us ownership of third-party facts or publications. Applicable open licences and rights granted by law remain available to you. Attribution does not imply publisher endorsement.

Reader downloads contain selected factual inputs, methods and our analysis with source links. Verification archives are retained separately and are no longer available as reader downloads. Dates and source identities remain attached to each representation.

Government statistics and publications

Contains public sector information licensed under the Open Government Licence v3.0.

Applies to the identified government material. Third-party works, personal data, logos and other exclusions remain outside that licence.

Open Government Licence v3.0, where stated by the source
Identified publications

ONS statistical boundaries

Source: Office for National Statistics licensed under the Open Government Licence v.3.0. Contains OS data © Crown copyright and database right 2024.

The map uses the captured December 2024 boundaries, simplified for statistical display. It is unsuitable for site-level boundary assessment.

Open Government Licence v3.0
Identified publications

ONS and Nomis statistics

Source: Office for National Statistics licensed under the Open Government Licence v3.0.

Statistical tables retain their reporting periods, revisions, missing values and source definitions. UK house-price data also carries the HM Land Registry notice below.

Open Government Licence v3.0, subject to dataset exclusions
Identified publications

UK House Price Index

Contains HM Land Registry data © Crown copyright and database right 2020. This data is licensed under the Open Government Licence v3.0.

The prescribed 2020 notice is retained. Observation and publication dates identify the actual data vintage.

Open Government Licence v3.0
Identified publications

Parliamentary publications

Contains Parliamentary information licensed under the Open Parliament Licence v3.0.

Applies to the Parliamentary information identified in Origin, including the report horizon and dissolution context. Third-party material and the licence exemptions are excluded.

Open Parliament Licence v3.0
Identified publications

Environment Agency observations

This uses Environment Agency flood and river level data from the real-time data API (Beta).

BuildPrompt displays a dated saved observation. The API name does not make this report a live warning service or a property flood-risk assessment.

Open Government Licence v3.0
Identified publications

FCA mortgage lending statistics

Source: Financial Conduct Authority and Prudential Regulation Authority, mortgage lending statistics.

The page expressly licenses its data. Our measures and calculations retain the dataset scope; this is not a blanket licence over unrelated FCA commentary.

Open Government Licence for the statistical data on the identified page
Identified publications

Planning Inspectorate register

Source: Planning Inspectorate, National Infrastructure Projects application register.

Register facts and application stages are distinct from applicant-authored documents. Applicant documents, personal data and third-party rights are not covered by this notice.

Source notice records Open Government Licence with exemptions
Identified publications

Greater London Authority AMR 21

Source: Greater London Authority, London Plan Annual Monitoring Report 21, January 2026.

The AMR 21 dataset page identifies the January 2026 report, KPI workbook and non-residential workbook used here and states Open Government Licence v3. Third-party exclusions remain applicable.

Open Government Licence v3.0
Identified publications

Company results and project announcements

Each company, report, date and source location is identified in Origin.

BuildPrompt presents selected reported facts and its own analysis, with the company’s periods, units and exclusions. It does not claim ownership of the underlying publications or endorsement by the companies.

Third-party rights retained
Identified publications

HBF industry survey

Source: Home Builders Federation, National New Home Customer Satisfaction Survey 2026, pages 4–5.

Two national survey findings, with independent measure labels and survey caveats. No star imagery, builder scores or respondent-level overlap is reproduced.

Selected factual analysis; third-party rights retained
Identified publications

NHOS service activity and NHQB code context

Source: New Homes Ombudsman Service annual report 2024/25 and 2025/26; New Homes Quality Board guidance.

Service activity is not a population defect rate. The complete monthly and enquiry-category series remains under review. Interactive charts, source tables, reader answers and downloads use selected annual comparisons; the original accepted observations are retained for verification.

Selected factual analysis; full-series scope under review
Identified publications

Housing policy and warranty organisations

HBF, Shelter, NHF and NHBC positions and guidance are attributed individually in Origin.

Dated stakeholder views are distinct from implemented policy. Warranty descriptions are subject to the relevant certificate, terms and exclusions.

Independent summaries; third-party rights retained
Identified publications

Selected news and announcements

Publisher, publication date and original article are identified beside each item.

Announcements do not establish completed construction. Construction Enquirer automated article and new feed collection are paused. Collection permission and presentation of existing facts are assessed separately.

Independent summaries and purpose-specific evidence
Identified publications

NESO connection announcements

Source: National Energy System Operator, connection-offer announcement.

Normalised factual fields and calculations are labelled separately from source wording. A news announcement is not treated as licensed portal open data.

Selected factual analysis; third-party rights retained
Identified publications

Other attributed sources

See the original publisher and source link in Origin.

No general licence is claimed. Selected facts, independent summaries and any necessary source wording retain their own source and use assessment.

Source-specific rights
Identified publications

Bank of England statistical database

Bank of England database. Copyright the Governor and Company of the Bank of England; data reused under the Open Government Licence.

The identified quoted mortgage-rate database series IUMBV34 and IUMBV24. This does not license general Bank commentary, logos, SONIA or excluded third-party exchange-rate series.

Open Government Licence, subject to the provider terms
Identified publications

Office for Budget Responsibility

Contains Office for Budget Responsibility information licensed under the Open Government Licence.

OBR information on the identified economic and fiscal outlook source. Logos and separately identified third-party rights are excluded.

Open Government Licence, subject to the provider terms
Identified publications

Corrections and rights concerns

Use our existing Contact form to identify the chart, source or item, explain the concern and provide supporting details. Include the source ID shown in Origin where possible.

We review the evidence and may temporarily withhold an item while checking it. Corrections and restoration decisions are recorded against the affected source.

Contact us about the Library

Source-use review dated 29 October 2026. A data-quality acceptance records an evidence check; it is separate from a source-use assessment.