SAPs_Extensions

Extension SAPs


Building Control will require SAP calculations to be carried out if the area of glazing in the extension(s) is greater than 25% of the floor area of the extension(s) and the area of doors & windows that will no longer exist. Using SAP gives you the greatest flexibility as it compares the actual proposal with a 'notional' extension where the area of glazing is no more than 25% and where the thermal elements only meet the minimum standard.

This is more complex than SAP calculations for a new dwelling, but we provide you with everything you need for Building Control and can also advise on additional improvements that can improve the overall energy efficiency.


Contact us or call 01439 788 680 now for advice and a fixed price quotation.

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