Energy Performance Certificate
1 William Way, GU34 2UW
Energy rating
Current: 82 B | Potential: 91 B
Environmental impact (CO₂)
Current: 94
| Potential: 97
| Field | Value |
|---|---|
| LMK KEY | 0814-3042-1201-5565-0200 |
| ADDRESS1 | 1 William Way |
| ADDRESS2 | — |
| ADDRESS3 | — |
| POSTCODE | GU34 2UW |
| BUILDING REFERENCE NUMBER | — |
| CURRENT ENERGY RATING | B |
| POTENTIAL ENERGY RATING | B |
| CURRENT ENERGY EFFICIENCY | 82 |
| POTENTIAL ENERGY EFFICIENCY | 91 |
| PROPERTY TYPE | House |
| BUILT FORM | Semi-Detached |
| INSPECTION DATE | 2025-09-09 |
| LOCAL AUTHORITY | E07000085 |
| CONSTITUENCY | E14001214 |
| COUNTY | — |
| LODGEMENT DATE | 2025-09-11 |
| TRANSACTION TYPE | Marketed sale |
| ENVIRONMENT IMPACT CURRENT | 94 |
| ENVIRONMENT IMPACT POTENTIAL | 97 |
| ENERGY CONSUMPTION CURRENT | 61 |
| ENERGY CONSUMPTION POTENTIAL | 36 |
| CO2 EMISSIONS CURRENT | 0.5 |
| CO2 EMISS CURR PER FLOOR AREA | 6 |
| CO2 EMISSIONS POTENTIAL | 0.2 |
| LIGHTING COST CURRENT | 74 |
| LIGHTING COST POTENTIAL | 74 |
| HEATING COST CURRENT | 1322 |
| HEATING COST POTENTIAL | 1033 |
| HOT WATER COST CURRENT | 436 |
| HOT WATER COST POTENTIAL | 301 |
| TOTAL FLOOR AREA | 80 |
| 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 | 100 |
| GLAZED TYPE | — |
| GLAZED AREA | — |
| EXTENSION COUNT | 0 |
| NUMBER HABITABLE ROOMS | 4 |
| NUMBER HEATED ROOMS | 4 |
| LOW ENERGY LIGHTING | 100 |
| NUMBER OPEN FIREPLACES | — |
| HOTWATER DESCRIPTION | From main system |
| HOT WATER ENERGY EFF | Average |
| HOT WATER ENV EFF | Very Good |
| FLOOR DESCRIPTION | Solid, no insulation (assumed) |
| 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 | 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 | Air source heat pump, radiators, electric |
| MAINHEAT ENERGY EFF | Average |
| MAINHEAT ENV EFF | Very 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 | electricity (not community) |
| WIND TURBINE COUNT | 0 |
| HEAT LOSS CORRIDOR | — |
| UNHEATED CORRIDOR LENGTH | — |
| FLOOR HEIGHT | 2.3 |
| PHOTO SUPPLY | — |
| SOLAR WATER HEATING FLAG | N |
| MECHANICAL VENTILATION | natural |
| ADDRESS | 1 William Way |
| LOCAL AUTHORITY LABEL | East Hampshire |
| CONSTITUENCY LABEL | East Hampshire |
| POSTTOWN | ALTON |
| CONSTRUCTION AGE BAND | England and Wales: 1991-1995 |
| LODGEMENT DATETIME | 2025-09-11 12:49:49 |
| TENURE | owner-occupied |
| FIXED LIGHTING OUTLETS COUNT | 30 |
| LOW ENERGY FIXED LIGHT COUNT | 30 |
| UPRN | 1710028189 |
| UPRN SOURCE | Energy Assessor |
| REPORT TYPE | 2 |
| Source file | certificates-2025.csv |
| COUNTRY | England |
| REGION | E12000008 |
| Address display | — |
| Nation | ew |