Sustainability

Building Energy Solutions

Our highly experienced team specialise in providing cost-effective and practical solutions for demonstrating compliance with Part L of the Building Regulations. We work with major UK housebuilders and one-off clients, and our assessor can provide you with support throughout the process, ensuring that you have everything required to achieve Building Control sign-off.

Determining CO2 emission rates for new buildings is a regulatory requirement via SAP (Domestic) or SBEM (Non-Domestic) calculations. Standards for energy performance of new and existing buildings are satisfied and documented through the provision of an Energy Performance Certificate EPC.

Water Saving Measures

All new build residential buildings or developments use must comply with Part G of the Building Regulations and achieve a water consumption rate of no more than 125 litres per person per day. Our experienced team can review your specification and provide calculations to confirm compliance.

Building Energy Solutions

Sap Calculations

We have over a decade of experience in providing domestic energy assessments and are fully SAP accredited. The Standard Assessment Procedure (SAP) is the Government’s approved methodology for the calculation of a property’s energy consumption rate and associated CO2 emissions.

SBEM Calculations

We have over a decade of experience in providing non-domestic energy assessments and are level 4 NDEA accredited. SBEM, or Simplified Building Energy Model, is an approved methodology for the calculation of non-residential properties’ energy requirements and CO2 emission rate. It is used to demonstrate compliance with Part L of Building Regulations.

Existing Building EPC

An EPC is a certificate containing information relating to the energy efficiency of a building and is a requirement for the sale or let of a property. Our commercial EPC assessor will carry out a building survey to establish the overall energy rating A – G.

Overheating - Part O

We are one of the first members of the Approved Overheating Competency Scheme.

The new Building Regulations Part O 2021 Edition came into force in June 2022 and is the first regulation to tackle overheating in new residential buildings.

There are two forms of compliance for residential developments:

 

(1) Our Overheating Risk Analysis will determine if the minimum requirements can be achieved using the simplified method prescribed in Part O. Where designs fail to meet the simple compliance assessment, we will be able to advise on design changes, or alternatively, our dynamic thermal simulation analysis service can be conducted.
or
(2) We use advanced Design Builder dynamic simulation software to model the building against the CIBSE TM59 criteria, the methodology sets two criteria for compliance: Criterion A: Hours of Exceedance (applying to living rooms, kitchens and bedrooms) and Criterion B: Night hours above 26°C (applying to bedrooms only). Should a dwelling fail either criterion then it is considered there is a risk of overheating. When a risk is identified, we provide advice on how to mitigate it through design or specification measures.