CORE Sustainability


ENERGY PERFORMANCE CERTIFICATES(EPCs) grade the energy efficiency of a building from A, the most efficient, to G, the least. EPCs are valid for 10 years for industrial, office, leisure, retail and residential buildings.

For both commercial and domestic properties, an EPC is required when:

  • Selling or renting,
  • Construction is complete (in accordance with the EU Energy Performance of Buildings Directive (EPBD)), or
  • There are modifications to a building which require adaptations to heating and/or ventilation systems.

When selling or renting any property, it is the responsibility of the vendor or landlord to have commissioned an EPC before putting it on the market and to make it available to all interested parties.In addition, compliance with Minimum Energy Efficiency Standards (MEES) regulations requires all properties to hold an EPC rating of E or above at the time of letting or lease renewal. More about MEES and our related services can be found here.

With extensive experience in conducting EPC surveys for single properties, entire portfolios, and new and existing properties alike, our dedicated team of fully accredited surveyors are ready to conduct thorough and accurate EPC assessments on your behalf.

Included in our EPC survey service is:

  • Remote support by your qualified assessor
  • Onsite survey
  • 3D building modelling in accredited software
  • Confirmation of current EPC rating
  • Current rating advice
  • Lodgement of EPC certificates

EPC Penalties

Breaches for commercial properties will incur a civil penalty of up to £150,000.

For residential PRS (private-rented sector), the penalty is a maximum of £4,000.


In line with building regulation requirements, all EPC assessments carried out on dwellings by our qualified assessors follow SAP methodology.

Calculating the typical annual energy costs, Standard Assessment Procedure is intended to draw data on the energy performance of dwellings from which environmental policy initiatives can be drafted.

For more information about Standard Assessment Procedure, please visit the government’s website here