Our Sustainable Homes discounts support new builds, existing homes and retrofits that achieve particular energy standards (see table). There are four tiers of discount available, which are linked to the energy standard of your property:
| 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% |