| Energy Standard | Ratings | Discount % |
|---|---|---|
| Passivhaus | Passivhaus | 1.50% |
| Passivhaus | PHPP Modelled | 0.75% |
| Energy Performance Certificate (EPC) | A (SAP rating 110+) (++) | 1.25% |
| Energy Performance Certificate (EPC) | A (SAP rating 100-109) (+) | 1.00% |
| Energy Performance Certificate (EPC) | A (SAP rating 92-99) | 0.75% |
| Energy Performance Certificate (EPC) | B (SAP rating 88-91) | 0.50% |
| Association for Environment Conscious Building (AECB) | AECB CarbonLite Building Standard | 1.00% |