
When an extension includes more than 25% of the floor area as glazing, Building Control or your Approved Inspector require calculations to show that the design still meets Part L of the Building Regulations.
Oakland Energy can provide the SAP Calculations you need.
We’ll remotely assess the extension and the existing property using your drawings, and advise on any improvements needed to meet Part L requirements.
Just straightforward guidance and everything you need so you can get on with building.