Energy Performance Certificate
66 Heathfield, SG8 5BN
Energy rating
Current: 82 B | Potential: 85 B
Environmental impact (CO₂)
Current: 72
| Potential: 76
| Field | Value |
|---|---|
| LMK KEY | 2602-3060-7207-6536-3204 |
| ADDRESS1 | 66 Heathfield |
| ADDRESS2 | — |
| ADDRESS3 | — |
| POSTCODE | SG8 5BN |
| BUILDING REFERENCE NUMBER | — |
| CURRENT ENERGY RATING | B |
| POTENTIAL ENERGY RATING | B |
| CURRENT ENERGY EFFICIENCY | 82 |
| POTENTIAL ENERGY EFFICIENCY | 85 |
| PROPERTY TYPE | House |
| BUILT FORM | Detached |
| INSPECTION DATE | 2026-03-20 |
| LOCAL AUTHORITY | E07000099 |
| CONSTITUENCY | E14001393 |
| COUNTY | — |
| LODGEMENT DATE | 2026-04-08 |
| TRANSACTION TYPE | Marketed sale |
| ENVIRONMENT IMPACT CURRENT | 72 |
| ENVIRONMENT IMPACT POTENTIAL | 76 |
| ENERGY CONSUMPTION CURRENT | 132 |
| ENERGY CONSUMPTION POTENTIAL | 112 |
| CO2 EMISSIONS CURRENT | 5.5 |
| CO2 EMISS CURR PER FLOOR AREA | 23 |
| CO2 EMISSIONS POTENTIAL | 4.7 |
| LIGHTING COST CURRENT | 104 |
| LIGHTING COST POTENTIAL | 104 |
| HEATING COST CURRENT | 2142 |
| HEATING COST POTENTIAL | 1836 |
| HOT WATER COST CURRENT | 285 |
| HOT WATER COST POTENTIAL | 286 |
| TOTAL FLOOR AREA | 242 |
| ENERGY TARIFF | Single |
| MAINS GAS FLAG | Y |
| FLOOR LEVEL | — |
| FLAT TOP STOREY | N |
| FLAT STOREY COUNT | 2 |
| MAIN HEATING CONTROLS | Programmer, room thermostat and TRVs |
| MULTI GLAZE PROPORTION | 99 |
| GLAZED TYPE | — |
| GLAZED AREA | — |
| EXTENSION COUNT | 2 |
| NUMBER HABITABLE ROOMS | 11 |
| NUMBER HEATED ROOMS | 11 |
| LOW ENERGY LIGHTING | 100 |
| NUMBER OPEN FIREPLACES | — |
| HOTWATER DESCRIPTION | From main system |
| HOT WATER ENERGY EFF | Good |
| HOT WATER ENV EFF | Good |
| FLOOR DESCRIPTION | Solid, no insulation (assumed) |
| FLOOR ENERGY EFF | N/A |
| FLOOR ENV EFF | N/A |
| WINDOWS DESCRIPTION | Mostly double glazing |
| WINDOWS ENERGY EFF | Average |
| WINDOWS ENV EFF | Average |
| WALLS DESCRIPTION | Cavity wall, as built, no insulation (assumed) |
| WALLS ENERGY EFF | Poor |
| WALLS ENV EFF | Poor |
| SECONDHEAT DESCRIPTION | Room heaters, wood logs |
| SHEATING ENERGY EFF | N/A |
| SHEATING ENV EFF | N/A |
| ROOF DESCRIPTION | Pitched, 200 mm loft insulation |
| ROOF ENERGY EFF | Good |
| ROOF ENV EFF | Good |
| MAINHEAT DESCRIPTION | Boiler and radiators, mains gas |
| MAINHEAT ENERGY EFF | Good |
| MAINHEAT ENV EFF | Good |
| MAINHEATCONT DESCRIPTION | Programmer, room thermostat and TRVs |
| MAINHEATC ENERGY EFF | Good |
| MAINHEATC ENV EFF | Good |
| LIGHTING DESCRIPTION | Good lighting efficiency |
| LIGHTING ENERGY EFF | Good |
| LIGHTING ENV EFF | Good |
| MAIN FUEL | mains gas (not community) |
| WIND TURBINE COUNT | 0 |
| HEAT LOSS CORRIDOR | — |
| UNHEATED CORRIDOR LENGTH | — |
| FLOOR HEIGHT | 2.45 |
| PHOTO SUPPLY | — |
| SOLAR WATER HEATING FLAG | N |
| MECHANICAL VENTILATION | natural |
| ADDRESS | 66 Heathfield |
| LOCAL AUTHORITY LABEL | North Hertfordshire |
| CONSTITUENCY LABEL | North East Hertfordshire |
| POSTTOWN | ROYSTON |
| CONSTRUCTION AGE BAND | England and Wales: 1950-1966 |
| LODGEMENT DATETIME | 2026-04-08 11:33:55 |
| TENURE | owner-occupied |
| FIXED LIGHTING OUTLETS COUNT | 38 |
| LOW ENERGY FIXED LIGHT COUNT | 38 |
| UPRN | 100080825373 |
| UPRN SOURCE | Energy Assessor |
| REPORT TYPE | 2 |
| Source file | certificates-2026.csv |
| COUNTRY | England |
| REGION | E12000006 |
| Address display | — |
| Nation | ew |