SAP Calculations for Conversions

If your project aims to develop a new dwelling from an existing one, convert a single dwelling into self contained flats, or even convert a commercial property into a dwelling, then you will likely require Part L1b SAP Calculations (or a regional variation) to satisfy Building Regulations/Standards.

Whatever the size of your project, Elmhurst Energy Services can complete SAP Calculations to ensure your conversion complies with the Building Regulations/Standards.

When are SAP Calculations for Conversions required?

A SAP Calculation would be required for all new dwellings created as a result of a 'Material Change of Use' or 'Change of Energy Status'.  

Elmhurst Energy Services and SAP Calculations for Conversions

Unlike typical SAP Calculations, Conversion calculations in SAP do not require DER/ TER (Emission Rate) calculations as compliance for energy efficiency standards is based on controlled services/fittings as well as new, replacement, or retained, thermal elements.

Conversion Calculations in SAP are also advised as we can produce a valid Energy Performance Certificate (EPC) as required for a new conversion.

This basis for compliance can be stringent, however our expertise with SAP Calculations and Building Regulations/ Standards ensures we can tackle any issues quickly and find suitable solutions for our clients.

What we do to ensure compliance

To ensure compliance is met for conversions, we produce U-Values within our SAP Calculations to check if they meet the requirements provided in the technical booklets and approved documents provided by government. If these values are too high or do not meet the standards, then we will give advice to the client as to how they can be achieved.

We also ensure all lighting levels and heating systems meet the minimum requirements and, if not, we will advise you of the necessary steps to ensure that the requirements are achieved.