Energy Performance Certificate
Byeways, Castle Walk, SN11 0DZ
Energy rating
Current: 54 E | Potential: 62 D
Environmental impact (CO₂)
Current: 61
| Potential: 66
| Field | Value |
|---|---|
| LMK KEY | 5318-0186-3102-0096-2406 |
| ADDRESS1 | Byeways |
| ADDRESS2 | Castle Walk |
| ADDRESS3 | — |
| POSTCODE | SN11 0DZ |
| BUILDING REFERENCE NUMBER | — |
| CURRENT ENERGY RATING | E |
| POTENTIAL ENERGY RATING | D |
| CURRENT ENERGY EFFICIENCY | 54 |
| POTENTIAL ENERGY EFFICIENCY | 62 |
| PROPERTY TYPE | House |
| BUILT FORM | Detached |
| INSPECTION DATE | 2026-06-17 |
| LOCAL AUTHORITY | E06000054 |
| CONSTITUENCY | E14001168 |
| COUNTY | — |
| LODGEMENT DATE | 2026-06-18 |
| TRANSACTION TYPE | Marketed sale |
| ENVIRONMENT IMPACT CURRENT | 61 |
| ENVIRONMENT IMPACT POTENTIAL | 66 |
| ENERGY CONSUMPTION CURRENT | 216 |
| ENERGY CONSUMPTION POTENTIAL | 188 |
| CO2 EMISSIONS CURRENT | 6.5 |
| CO2 EMISS CURR PER FLOOR AREA | 34 |
| CO2 EMISSIONS POTENTIAL | 5.7 |
| LIGHTING COST CURRENT | 81 |
| LIGHTING COST POTENTIAL | 81 |
| HEATING COST CURRENT | 3177 |
| HEATING COST POTENTIAL | 2956 |
| HOT WATER COST CURRENT | 270 |
| HOT WATER COST POTENTIAL | 270 |
| TOTAL FLOOR AREA | 193 |
| ENERGY TARIFF | Single |
| MAINS GAS FLAG | Y |
| FLOOR LEVEL | — |
| FLAT TOP STOREY | N |
| FLAT STOREY COUNT | 2 |
| MAIN HEATING CONTROLS | Time and temperature zone control |
| MULTI GLAZE PROPORTION | 100 |
| GLAZED TYPE | — |
| GLAZED AREA | — |
| EXTENSION COUNT | 4 |
| NUMBER HABITABLE ROOMS | 5 |
| NUMBER HEATED ROOMS | 5 |
| LOW ENERGY LIGHTING | 100 |
| NUMBER OPEN FIREPLACES | 0 |
| HOTWATER DESCRIPTION | From main system |
| HOT WATER ENERGY EFF | Good |
| HOT WATER ENV EFF | Good |
| FLOOR DESCRIPTION | Suspended, insulated |
| FLOOR ENERGY EFF | N/A |
| FLOOR ENV EFF | N/A |
| WINDOWS DESCRIPTION | Fully double glazed |
| 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, 300 mm loft insulation |
| ROOF ENERGY EFF | Very Good |
| ROOF ENV EFF | Very Good |
| MAINHEAT DESCRIPTION | Boiler and underfloor heating, mains gas, Boiler and radiators, mains gas |
| MAINHEAT ENERGY EFF | Good |
| MAINHEAT ENV EFF | Good |
| MAINHEATCONT DESCRIPTION | Time and temperature zone control |
| MAINHEATC ENERGY EFF | Very Good |
| MAINHEATC ENV EFF | Very Good |
| LIGHTING DESCRIPTION | Excellent lighting efficiency |
| LIGHTING ENERGY EFF | Very Good |
| LIGHTING ENV EFF | Very Good |
| MAIN FUEL | mains gas (not community) |
| WIND TURBINE COUNT | 0 |
| HEAT LOSS CORRIDOR | — |
| UNHEATED CORRIDOR LENGTH | — |
| FLOOR HEIGHT | 2.46 |
| PHOTO SUPPLY | 0 |
| SOLAR WATER HEATING FLAG | N |
| MECHANICAL VENTILATION | mechanical ventilation without heat recovery (MV) |
| ADDRESS | Byeways, Castle Walk |
| LOCAL AUTHORITY LABEL | Wiltshire |
| CONSTITUENCY LABEL | Chippenham |
| POSTTOWN | CALNE |
| CONSTRUCTION AGE BAND | England and Wales: 1950-1966 |
| LODGEMENT DATETIME | 2026-06-18 10:09:46 |
| TENURE | owner-occupied |
| FIXED LIGHTING OUTLETS COUNT | 76 |
| LOW ENERGY FIXED LIGHT COUNT | 76 |
| UPRN | 100121030548 |
| UPRN SOURCE | Energy Assessor |
| REPORT TYPE | 2 |
| Source file | certificates-2026.csv |
| COUNTRY | England |
| REGION | E12000009 |
| Address display | — |
| Nation | ew |