Sources and evidence
We prioritise primary sources including GOV.UK, legislation.gov.uk, Ofgem, official local authority pages and published government datasets. Where an estimate comes from industry data or a third party, the page should identify that source and present the figure as an estimate.
Original research
Data-led pages explain the dataset, coverage and calculation approach. EPC records describe certificates lodged during the dataset period; they are not a live census of every property and should not be read as a guarantee about an individual home.
Review and freshness
Regulatory and funding guidance is reviewed when government policy changes and during routine editorial checks. Publication and substantive update dates are shown where available. A changed year in a page title is not treated as a substitute for reviewing the underlying guidance.
Automation and AI assistance
Software and AI tools may assist with research organisation, drafting, data processing and quality checks. Editorial responsibility remains with EPCGuide. Material claims should be checked against cited sources before publication, and automatically generated output is not treated as a source of fact.
Corrections
Send suspected errors, outdated links or missing context to rees@epcguide.co.uk. Please include the page URL and the source supporting the correction. Material corrections are made as quickly as practical and the page's modified date is updated.
Scope and professional advice
EPCGuide provides general information, not legal, financial, tax or property-specific technical advice. Rules and eligibility can depend on location, tenure, property condition and the facts of a tenancy. Confirm decisions with the relevant authority or a suitably qualified professional.