SAP Calculations

Applicable for New Build Dwellings, Heavily Glazed Extensions, and Change of Use to Residential

The Standard Assessment Procedure (SAP) Calculation is an asset rating system introduced through Part L of the Building Regulations to evaluate the annual energy costs of new and, in some cases, existing dwellings. SAP Calculations measure the fuel needed for heating, ventilation, and lighting, generating a score from 1 to 100+.

A SAP rating of 100 signifies zero energy costs for the end-user, with scores above 100 indicating energy export potential.

gettyimages-180813694-612x612.jpg
gettyimages-1146295665-612x612.jpg
gettyimages-1328873770-612x612.jpg
gettyimages-1278662673-612x612.jpg

New homes on the Isle of Man are now required to achieve a minimum SAP score of 88 to comply with Building Regulations. This standard increased to a SAP score of 93 in 2024 and to 97 in 2027.

3Co.im assists new housing developments in meeting these regulatory requirements in a cost-effective and practical way.

Our practice is accredited as an On Construction Domestic Energy Assessor (OCDEA) through Elmhurst Energy in the UK, ensuring the highest standards of compliance and expertise.

Next

Domestic Energy Performance Certificate (EPC)