- Project plans
- Project activities
- Legislation and standards
- Industry context
Last edited 21 Jul 2014
Building emission rate BER
The Building Regulations set out requirements for specific aspects of building design and construction. Regulation 26 of the building regulations states that “Where a building is erected, it shall not exceed the target CO2 emission rate for the building…”,
The target CO2 emission rate (TER) sets a minimum allowable standard for the energy performance of a building and is defined by the annual CO2 emissions of a notional building of the same size and shape to the proposed building. TER is expressed in annual kg of CO2 per m2.
The actual building emission rate (BER) for the proposed building (other than dwellings) is calculated based on its actual specification and is expressed in terms of its annual CO2 emissions of the proposed building expressed in kg/m2. The emission rate for self-contained dwellings and individual flats (excluding common areas) is determined using a different calculation, the dwelling emission rate (DER)
The BER for the proposed building must not exceed the TER.
Before construction begins, a design stage calculation must be issued to the Building Control Body (BCB), setting out the TER, and BER for the proposed building, along with details of its proposed specification.
Within 5 days of the completion of the construction, a report must be issued to the Building Control Body (BCB), setting out the TER, and BER of the completed building, along with any changes that have been made to the specification, and an energy performance certificate (EPC). These ‘as-built’ calculations require that an air-permeability test is carried out to ensure that the building envelope has been constructed to a suitably high level of workmanship so that air (and with it, heat) will not ‘leak’ through the building fabric. In addition, the BCB is likely to require a commissioning notice.
For buildings other than dwellings, the TER and BER can be calculated and the EPC produced by following the National Calculation Method (NCM). This can be done by using approved simulation software (Approved Dynamic Simulation Models (DSMs)) or by using the Simplified Building Energy Model (SBEM), a ‘simplified’ compliance tool developed by BRE, which has a user interface called iSBEM.
 Related articles on Designing Buildings Wiki
- Air permeability testing.
- Approved documents.
- Building regulations.
- Dwelling emission rate.
- National Calculation Method.
- Simplified Building Energy Model.
- Standard Assessment Procedure.
- Target emission rate.
 External references
- Planning portal: Approved document L.
Featured articles and news
New BRE book considers the progression from project-based knowledge creation to whole-life urban knowledge management.
This CIOB article explores the concept of value in building design and construction.
BREEAM and Measurabl announce integration to improve the financial performance of commercial real estate.
Rogers Stirk Harbour + Partners' release new images of soon-to-open 3WTC tower in New York.
A document can be called a bond or a guarantee. Does the name matter and what is the difference between them?
New briefing note is launched focusing on increasing knowledge of housing that promotes health and wellbeing.
Arbitration is a private, contractual form of dispute resolution used in the construction industry.
The European Parliament has approved a revised Energy Performance of Buildings directive.
One in six MPs supports the ring-fencing of retentions as proposed in the 'Aldous Bill'.
A stakeholder is anyone who has an interest in the process or outcome of a construction project.
BRE launches online self-assessment tool for ethical labour sourcing.