Part (L)/nZEB Compliance

Domestic & non-domestic buildings

‘Nearly Zero Energy (nZEB) Buildings’ means a building that has a very high energy performance. The nearly zero or very low amount of energy required should be covered to a very significant extent by energy from renewable sources, including energy from renewable sources produced on-site or nearby.

Part L (nZEB) for New Dwellings

In order to demonstrate compliance with Part L of the building regulations you must provide Building Control with a DEAP/Part L Analysis for each new-dwelling.

A DEAP Analysis is the methodology for calculating the energy performance of dwellings. All new dwellings must achieve a dwelling Energy Performance Coefficient (EPC), Carbon Performance Coefficient (CPC) and Renewable Energy Ration (RER) no greater than the targets set out in the Part L of the Building Regulations. The DEAP calculation process is in two stages:

  • Design-stage
  • As-built stage

Our experienced BER assessors can guide you smoothly through compliance, from concept to completion. Our service includes all the support required to ensure every dwelling achieves a pass.

Part L (nZEB) for New Dwellings other than Dwellings

In order to demonstrate compliance with Part L you must provide Building Control Officer with a SBEM calculation for each new commercial building.

SBEM (Simplified Building Energy Model) is the approved methodology for calculating the energy performance of non-domestic buildings. All new buildings must achieve an Energy Performance Coefficient (EPC), Carbon Performance Coefficient (CPC) and Renewable Energy Ration (RER) no greater than the targets set out in the Part L of the Building Regulations. The SBEM calculation process is in two stages:

  • Design-stage
  • As-built stage

Our experienced SBEM assessors can guide you smoothly through compliance, from concept to completion. Our service includes all the support required to ensure every building achieves a pass.

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