Energy Performance Certificate
4 Topaz Way, Balby, DN4 8GG
Energy rating
Current: 83 B | Potential: 85 B
Environmental impact (CO₂)
Current: 97
| Potential: 98
| Field | Value |
|---|---|
| LMK KEY | 9736-9232-3100-0183-1226 |
| ADDRESS1 | 4 Topaz Way |
| ADDRESS2 | Balby |
| ADDRESS3 | — |
| POSTCODE | DN4 8GG |
| BUILDING REFERENCE NUMBER | — |
| CURRENT ENERGY RATING | B |
| POTENTIAL ENERGY RATING | B |
| CURRENT ENERGY EFFICIENCY | 83 |
| POTENTIAL ENERGY EFFICIENCY | 85 |
| PROPERTY TYPE | Bungalow |
| BUILT FORM | Semi-Detached |
| INSPECTION DATE | 2026-02-27 |
| LOCAL AUTHORITY | — |
| CONSTITUENCY | — |
| COUNTY | — |
| LODGEMENT DATE | 2026-02-27 |
| TRANSACTION TYPE | New dwelling |
| ENVIRONMENT IMPACT CURRENT | 97 |
| ENVIRONMENT IMPACT POTENTIAL | 98 |
| ENERGY CONSUMPTION CURRENT | 44 |
| ENERGY CONSUMPTION POTENTIAL | 39 |
| CO2 EMISSIONS CURRENT | 0.2 |
| CO2 EMISS CURR PER FLOOR AREA | 3.4 |
| CO2 EMISSIONS POTENTIAL | 0.2 |
| LIGHTING COST CURRENT | 50 |
| LIGHTING COST POTENTIAL | 50 |
| HEATING COST CURRENT | 401 |
| HEATING COST POTENTIAL | 427 |
| HOT WATER COST CURRENT | 375 |
| HOT WATER COST POTENTIAL | 279 |
| TOTAL FLOOR AREA | 63 |
| ENERGY TARIFF | off-peak 7 hour |
| MAINS GAS FLAG | — |
| FLOOR LEVEL | — |
| FLAT TOP STOREY | N |
| FLAT STOREY COUNT | 1 |
| MAIN HEATING CONTROLS | Controls for high heat retention storage heaters |
| MULTI GLAZE PROPORTION | 100 |
| GLAZED TYPE | — |
| GLAZED AREA | — |
| EXTENSION COUNT | — |
| NUMBER HABITABLE ROOMS | — |
| NUMBER HEATED ROOMS | — |
| LOW ENERGY LIGHTING | 100 |
| NUMBER OPEN FIREPLACES | 0 |
| HOTWATER DESCRIPTION | Electric instantaneous at point of use |
| HOT WATER ENERGY EFF | Very Poor |
| HOT WATER ENV EFF | Very Good |
| FLOOR DESCRIPTION | Average thermal transmittance 0.11 W/m²K |
| FLOOR ENERGY EFF | Very Good |
| FLOOR ENV EFF | Very Good |
| WINDOWS DESCRIPTION | High performance glazing |
| WINDOWS ENERGY EFF | Very Good |
| WINDOWS ENV EFF | Very Good |
| WALLS DESCRIPTION | Average thermal transmittance 0.18 W/m²K |
| WALLS ENERGY EFF | Very Good |
| WALLS ENV EFF | Very Good |
| SECONDHEAT DESCRIPTION | Room heaters, electric |
| SHEATING ENERGY EFF | N/A |
| SHEATING ENV EFF | N/A |
| ROOF DESCRIPTION | Average thermal transmittance 0.09 W/m²K |
| ROOF ENERGY EFF | Very Good |
| ROOF ENV EFF | Very Good |
| MAINHEAT DESCRIPTION | Electric storage heaters, Room heaters, electric |
| MAINHEAT ENERGY EFF | Average |
| MAINHEAT ENV EFF | Very Good |
| MAINHEATCONT DESCRIPTION | Controls for high heat retention storage heaters |
| MAINHEATC ENERGY EFF | Good |
| MAINHEATC ENV EFF | Good |
| LIGHTING DESCRIPTION | Good lighting efficiency |
| LIGHTING ENERGY EFF | Good |
| LIGHTING ENV EFF | Good |
| MAIN FUEL | Electricity: electricity, unspecified tariff |
| WIND TURBINE COUNT | — |
| HEAT LOSS CORRIDOR | — |
| UNHEATED CORRIDOR LENGTH | — |
| FLOOR HEIGHT | 2.55 |
| PHOTO SUPPLY | — |
| SOLAR WATER HEATING FLAG | — |
| MECHANICAL VENTILATION | — |
| ADDRESS | 4 Topaz Way, Balby |
| LOCAL AUTHORITY LABEL | — |
| CONSTITUENCY LABEL | — |
| POSTTOWN | DONCASTER |
| CONSTRUCTION AGE BAND | 2026 |
| LODGEMENT DATETIME | 2026-02-27 15:32:10 |
| TENURE | unknown |
| FIXED LIGHTING OUTLETS COUNT | 8 |
| LOW ENERGY FIXED LIGHT COUNT | 8 |
| UPRN | — |
| UPRN SOURCE | — |
| REPORT TYPE | 3 |
| Source file | certificates-2026.csv |
| COUNTRY | England |
| REGION | — |
| Address display | — |
| Nation | ew |