Energy savings breakdown

SAP ratings

The energy efficiency rating is a measure of the overall efficiency of a home. The higher the rating ('A' being the highest) the more energy efficient the home is and the lower the fuel bills are likely to be.

The environmental impact rating is a measure of a home's impact on the environment in terms of carbon dioxide (CO2) emissions. The higher the rating ('A' being the highest) the less impact it has on the environment.

SAP energy efficiency rating SAP environmental impact rating

Before improvements

Efficiency grading
F
Efficiency rating band
(21-38)
Efficiency rating
30

After improvements

Efficiency grading
E
Efficiency rating band
(39-54)
Efficiency rating
53
More on Energy Performance Certificates

Before improvements

Efficiency grading
F
Efficiency rating band
(21-38)
Efficiency rating
27

After improvements

Efficiency grading
D
Efficiency rating band
(55-68)
Efficiency rating
67