Energy Performance Certificate
12 Overthorpe Close, Knaphill, GU21 2LA
Energy rating
Current: 56 D | Potential: 92 A
Environmental impact (CO₂)
Current: 51
| Potential: 76
| Field | Value |
|---|---|
| LMK KEY | 0360-2089-2550-2525-1065 |
| ADDRESS1 | 12 Overthorpe Close |
| ADDRESS2 | Knaphill |
| ADDRESS3 | — |
| POSTCODE | GU21 2LA |
| BUILDING REFERENCE NUMBER | — |
| CURRENT ENERGY RATING | D |
| POTENTIAL ENERGY RATING | A |
| CURRENT ENERGY EFFICIENCY | 56 |
| POTENTIAL ENERGY EFFICIENCY | 92 |
| PROPERTY TYPE | House |
| BUILT FORM | Enclosed End-Terrace |
| INSPECTION DATE | 2025-05-21 |
| LOCAL AUTHORITY | E07000217 |
| CONSTITUENCY | E14001592 |
| COUNTY | — |
| LODGEMENT DATE | 2025-05-21 |
| TRANSACTION TYPE | Marketed sale |
| ENVIRONMENT IMPACT CURRENT | 51 |
| ENVIRONMENT IMPACT POTENTIAL | 76 |
| ENERGY CONSUMPTION CURRENT | 407 |
| ENERGY CONSUMPTION POTENTIAL | 173 |
| CO2 EMISSIONS CURRENT | 3.0 |
| CO2 EMISS CURR PER FLOOR AREA | 69 |
| CO2 EMISSIONS POTENTIAL | 1.3 |
| LIGHTING COST CURRENT | 58 |
| LIGHTING COST POTENTIAL | 56 |
| HEATING COST CURRENT | 878 |
| HEATING COST POTENTIAL | 447 |
| HOT WATER COST CURRENT | 294 |
| HOT WATER COST POTENTIAL | 127 |
| TOTAL FLOOR AREA | 43 |
| ENERGY TARIFF | dual |
| MAINS GAS FLAG | N |
| FLOOR LEVEL | — |
| FLAT TOP STOREY | N |
| FLAT STOREY COUNT | 2 |
| MAIN HEATING CONTROLS | Programmer and appliance thermostats |
| MULTI GLAZE PROPORTION | 100 |
| GLAZED TYPE | double glazing installed before 2002 |
| GLAZED AREA | Normal |
| EXTENSION COUNT | 0 |
| NUMBER HABITABLE ROOMS | 2 |
| NUMBER HEATED ROOMS | 2 |
| LOW ENERGY LIGHTING | 100 |
| NUMBER OPEN FIREPLACES | 0 |
| HOTWATER DESCRIPTION | Electric immersion, off-peak |
| HOT WATER ENERGY EFF | Poor |
| HOT WATER ENV EFF | Poor |
| FLOOR DESCRIPTION | Suspended, no insulation (assumed) |
| 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, insulated (assumed) |
| WALLS ENERGY EFF | Good |
| WALLS ENV EFF | Good |
| SECONDHEAT DESCRIPTION | None |
| SHEATING ENERGY EFF | N/A |
| SHEATING ENV EFF | N/A |
| ROOF DESCRIPTION | Pitched, 100 mm loft insulation |
| ROOF ENERGY EFF | Average |
| ROOF ENV EFF | Average |
| MAINHEAT DESCRIPTION | Room heaters, electric |
| MAINHEAT ENERGY EFF | Very Poor |
| MAINHEAT ENV EFF | Poor |
| MAINHEATCONT DESCRIPTION | Programmer and appliance thermostats |
| MAINHEATC ENERGY EFF | Good |
| MAINHEATC ENV EFF | Good |
| LIGHTING DESCRIPTION | Low energy lighting in all fixed outlets |
| LIGHTING ENERGY EFF | Very Good |
| LIGHTING ENV EFF | Very Good |
| MAIN FUEL | electricity (not community) |
| WIND TURBINE COUNT | 0 |
| HEAT LOSS CORRIDOR | — |
| UNHEATED CORRIDOR LENGTH | — |
| FLOOR HEIGHT | 2.35 |
| PHOTO SUPPLY | 0 |
| SOLAR WATER HEATING FLAG | N |
| MECHANICAL VENTILATION | natural |
| ADDRESS | 12 Overthorpe Close, Knaphill |
| LOCAL AUTHORITY LABEL | Woking |
| CONSTITUENCY LABEL | Woking |
| POSTTOWN | WOKING |
| CONSTRUCTION AGE BAND | England and Wales: 1983-1990 |
| LODGEMENT DATETIME | 2025-05-21 09:10:51 |
| TENURE | owner-occupied |
| FIXED LIGHTING OUTLETS COUNT | 18 |
| LOW ENERGY FIXED LIGHT COUNT | 18 |
| UPRN | 100061653525 |
| UPRN SOURCE | Energy Assessor |
| REPORT TYPE | 2 |
| Source file | certificates-2025.csv |
| COUNTRY | England |
| REGION | E12000008 |
| Address display | — |
| Nation | ew |