Energy Performance Certificate
23 Guernsey House, Pioneer Way, WD18 6ST
Energy rating
Current: 74 C | Potential: 82 B
Environmental impact (CO₂)
Current: 92
| Potential: 94
| Field | Value |
|---|---|
| LMK KEY | 9291-3062-9205-3846-3204 |
| ADDRESS1 | 23 Guernsey House |
| ADDRESS2 | Pioneer Way |
| ADDRESS3 | — |
| POSTCODE | WD18 6ST |
| BUILDING REFERENCE NUMBER | — |
| CURRENT ENERGY RATING | C |
| POTENTIAL ENERGY RATING | B |
| CURRENT ENERGY EFFICIENCY | 74 |
| POTENTIAL ENERGY EFFICIENCY | 82 |
| PROPERTY TYPE | Flat |
| BUILT FORM | Not Recorded |
| INSPECTION DATE | 2026-05-11 |
| LOCAL AUTHORITY | E07000103 |
| CONSTITUENCY | E14001568 |
| COUNTY | — |
| LODGEMENT DATE | 2026-05-12 |
| TRANSACTION TYPE | Rental |
| ENVIRONMENT IMPACT CURRENT | 92 |
| ENVIRONMENT IMPACT POTENTIAL | 94 |
| ENERGY CONSUMPTION CURRENT | 127 |
| ENERGY CONSUMPTION POTENTIAL | 108 |
| CO2 EMISSIONS CURRENT | 0.5 |
| CO2 EMISS CURR PER FLOOR AREA | 12 |
| CO2 EMISSIONS POTENTIAL | 0.4 |
| LIGHTING COST CURRENT | 33 |
| LIGHTING COST POTENTIAL | 33 |
| HEATING COST CURRENT | 186 |
| HEATING COST POTENTIAL | 167 |
| HOT WATER COST CURRENT | 592 |
| HOT WATER COST POTENTIAL | 352 |
| TOTAL FLOOR AREA | 39 |
| ENERGY TARIFF | dual |
| MAINS GAS FLAG | N |
| FLOOR LEVEL | 2 |
| FLAT TOP STOREY | N |
| FLAT STOREY COUNT | 1 |
| MAIN HEATING CONTROLS | Manual charge control |
| MULTI GLAZE PROPORTION | 100 |
| GLAZED TYPE | — |
| GLAZED AREA | — |
| EXTENSION COUNT | 0 |
| NUMBER HABITABLE ROOMS | 2 |
| NUMBER HEATED ROOMS | 2 |
| LOW ENERGY LIGHTING | 100 |
| NUMBER OPEN FIREPLACES | — |
| HOTWATER DESCRIPTION | Electric immersion, off-peak |
| HOT WATER ENERGY EFF | Poor |
| HOT WATER ENV EFF | Very Good |
| FLOOR DESCRIPTION | (another dwelling below) |
| FLOOR ENERGY EFF | N/A |
| FLOOR ENV EFF | N/A |
| WINDOWS DESCRIPTION | Fully double glazed |
| WINDOWS ENERGY EFF | Poor |
| WINDOWS ENV EFF | Poor |
| WALLS DESCRIPTION | Cavity wall, as built, insulated (assumed) |
| WALLS ENERGY EFF | Good |
| WALLS ENV EFF | Good |
| SECONDHEAT DESCRIPTION | Room heaters, electric |
| SHEATING ENERGY EFF | N/A |
| SHEATING ENV EFF | N/A |
| ROOF DESCRIPTION | (another dwelling above) |
| ROOF ENERGY EFF | N/A |
| ROOF ENV EFF | N/A |
| MAINHEAT DESCRIPTION | Electric storage heaters |
| MAINHEAT ENERGY EFF | Average |
| MAINHEAT ENV EFF | Very Good |
| MAINHEATCONT DESCRIPTION | Manual charge control |
| MAINHEATC ENERGY EFF | Poor |
| MAINHEATC ENV EFF | Poor |
| LIGHTING DESCRIPTION | Excellent lighting efficiency |
| LIGHTING ENERGY EFF | Very Good |
| LIGHTING ENV EFF | Very Good |
| MAIN FUEL | electricity (not community) |
| WIND TURBINE COUNT | 0 |
| HEAT LOSS CORRIDOR | unheated corridor |
| UNHEATED CORRIDOR LENGTH | 1.21 |
| FLOOR HEIGHT | 2.24 |
| PHOTO SUPPLY | 0 |
| SOLAR WATER HEATING FLAG | N |
| MECHANICAL VENTILATION | natural |
| ADDRESS | 23 Guernsey House, Pioneer Way |
| LOCAL AUTHORITY LABEL | Watford |
| CONSTITUENCY LABEL | Watford |
| POSTTOWN | WATFORD |
| CONSTRUCTION AGE BAND | England and Wales: 1996-2002 |
| LODGEMENT DATETIME | 2026-05-12 17:26:38 |
| TENURE | rented (private) |
| FIXED LIGHTING OUTLETS COUNT | 9 |
| LOW ENERGY FIXED LIGHT COUNT | 9 |
| UPRN | 100081146291 |
| UPRN SOURCE | Energy Assessor |
| REPORT TYPE | 2 |
| Source file | certificates-2026.csv |
| COUNTRY | England |
| REGION | E12000006 |
| Address display | — |
| Nation | ew |