Display Energy Certificates (DECs) - Public Building Compliance

Accredited Display Energy Certificates and Advisory Reports for public buildings over 250m2 in England, Wales, and Northern Ireland.

Overview

Display Energy Certificates (DECs) are a legal requirement for public buildings with a total useful floor area over 250m2 that are occupied by a public authority and frequently visited by the public. Unlike EPCs which assess theoretical performance, DECs show the actual energy consumption of a building based on metered data. Buildings over 1,000m2 require annual renewal, while those between 250-1,000m2 require renewal every 10 years. An Advisory Report (AR) must accompany each DEC, identifying practical energy efficiency improvements.

What We Offer

DEC assessments for public authority buildings

Advisory Reports with prioritised improvement recommendations

Annual DEC renewals for buildings over 1,000m2

Operational rating calculations from actual energy data

Benchmarking against typical buildings of the same type

Multi-site DEC programmes for local authorities and NHS trusts

Display compliance guidance and certificate placement

Historical energy data analysis and trend reporting

Key Benefits

Meet legal display obligations and avoid enforcement action

Understand actual building energy performance vs benchmarks

Identify practical energy-saving opportunities from real data

Support public sector carbon reduction targets

Demonstrate environmental responsibility to building users

Streamlined multi-building programmes for large estates

Ready to Get Started?

Contact us today to discuss how our display energy certificates (decs) - public building compliance services can support your needs.