On Construction Domestic Energy Assessor (OCDEA)
An On Construction Domestic Energy Assessor (OCDEA) is a UK government recognised qualification required to complete energy calculations using Standard Assessment Procedure (SAP) software, to carry out Predicted Energy Assessments (PEA) and to produce Energy Performance Certificates (EPC).
An OCDEA performs energy calculations for new build properties to ensure they comply with the building regulations, both at the design stage and after completion. This normally involves analysis of plans, sections and elevations, as well as construction details and specifications, and calculations using standardised software, issuing a compliance report and an EPC to the building control authority in order for the project to be signed off.
[edit] Related articles on Designing Buildings
- Building Performance Evaluation.
- Display Energy Certificate.
- Domestic Energy Assessor.
- Energy Performance Certificate.
- Energy Assessment.
- Energy Audit.
- Energy Savings Opportunity Scheme.
- Energy Performance of Buildings Directive.
- Energy Performance of Buildings Regulations.
- Post Occupancy Evaluation.
- Predicted Energy Assessment.
Featured articles and news
We're expanding our collaborative mission by launching DB Intelligence, an exclusive market research advisory panel. Built environment professionals can now get paid to share their expertise on industry trends, products and services.
Panel members receive direct financial incentives for participating in research projects like short surveys, 1-2-1 interviews and focus groups. Register today to shape the future of the construction sector.
Planning condition discharge in England and Wales
A brief exoplanation from a building compliance expert, with further links.
Overheating guidance and tools for building designers
Guidance for dealing with element of building fabric control that have increasing importance.
Shading for housing, a design guide
From the Good Homes Alliance and British Blind and Shutter Association.
UK Standard Skills Classification (SSC)
A shared framework for describing skills needs.
Social media ban consultation comes to close
CIOB urges UK Government to consider social media’s role in careers guidance in ban debate.
The latest of eight Skills England apprenticeship units
The addition of battery manufacturing welcomed by ECA with a warning about the risks of fast-tracked apprenticeship units.
Building Control Independent Panel final report
A precis of a key report led by Dame Hackitt with full recommendations and link to the government response.
Building Safety recap April, 2026
A short and longer run-through of the month, with links to further information and sources.
CIAT May 2026 briefing.
From medieval scribes to modern word art.
ECA welcomes crackdown on late payment and push for clean energy, whilst CIOB seek fixed cladding removal timeframes.
Cyber Security in the Built Environment
Protecting projects, data, and digital assets: A CIOB Academy TIS.
Managing competence in the built environment
ITFG publishes new industry guide on how to meet the ICC principles.
The UK's campaign to reduce noise pollution: Mythbusting, articles and topic guides.





















Comments
[edit] To make a comment about this article, or to suggest changes, click 'Add a comment' above. Separate your comments from any existing comments by inserting a horizontal line.