Energy Performance Certificate
23 South John Street, WA9 1AZ
Energy rating
Current: 92 A | Potential: 94 A
Environmental impact (CO₂)
Current: 99
| Potential: 100
| Field | Value |
|---|---|
| LMK KEY | 0882-3011-8304-5886-3200 |
| ADDRESS1 | 23 South John Street |
| ADDRESS2 | — |
| ADDRESS3 | — |
| POSTCODE | WA9 1AZ |
| BUILDING REFERENCE NUMBER | — |
| CURRENT ENERGY RATING | A |
| POTENTIAL ENERGY RATING | A |
| CURRENT ENERGY EFFICIENCY | 92 |
| POTENTIAL ENERGY EFFICIENCY | 94 |
| PROPERTY TYPE | House |
| BUILT FORM | End-Terrace |
| INSPECTION DATE | 2026-04-08 |
| LOCAL AUTHORITY | E08000013 |
| CONSTITUENCY | E14001510 |
| COUNTY | — |
| LODGEMENT DATE | 2026-04-08 |
| TRANSACTION TYPE | New dwelling |
| ENVIRONMENT IMPACT CURRENT | 99 |
| ENVIRONMENT IMPACT POTENTIAL | 100 |
| ENERGY CONSUMPTION CURRENT | 22 |
| ENERGY CONSUMPTION POTENTIAL | 16 |
| CO2 EMISSIONS CURRENT | 0.1 |
| CO2 EMISS CURR PER FLOOR AREA | 0.9 |
| CO2 EMISSIONS POTENTIAL | 0.0 |
| LIGHTING COST CURRENT | 48 |
| LIGHTING COST POTENTIAL | 48 |
| HEATING COST CURRENT | 167 |
| HEATING COST POTENTIAL | 190 |
| HOT WATER COST CURRENT | 417 |
| HOT WATER COST POTENTIAL | 307 |
| TOTAL FLOOR AREA | 73 |
| ENERGY TARIFF | standard tariff |
| MAINS GAS FLAG | — |
| 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 | — |
| NUMBER HABITABLE ROOMS | — |
| NUMBER HEATED ROOMS | — |
| LOW ENERGY LIGHTING | 100 |
| NUMBER OPEN FIREPLACES | 0 |
| HOTWATER DESCRIPTION | From main system |
| HOT WATER ENERGY EFF | Average |
| HOT WATER ENV EFF | Very Good |
| FLOOR DESCRIPTION | Average thermal transmittance 0.11 W/m²K |
| FLOOR ENERGY EFF | Very Good |
| FLOOR ENV EFF | Very Good |
| WINDOWS DESCRIPTION | High performance glazing |
| WINDOWS ENERGY EFF | Very Good |
| WINDOWS ENV EFF | Very Good |
| WALLS DESCRIPTION | Average thermal transmittance 0.15 W/m²K |
| WALLS ENERGY EFF | Very Good |
| WALLS ENV EFF | Very Good |
| SECONDHEAT DESCRIPTION | None |
| SHEATING ENERGY EFF | N/A |
| SHEATING ENV EFF | N/A |
| ROOF DESCRIPTION | Average thermal transmittance 0.09 W/m²K |
| ROOF ENERGY EFF | Very Good |
| ROOF ENV EFF | Very Good |
| MAINHEAT DESCRIPTION | Air source heat pump, radiators, electric |
| MAINHEAT ENERGY EFF | Good |
| MAINHEAT ENV EFF | Very Good |
| MAINHEATCONT DESCRIPTION | Programmer, room thermostat and TRVs |
| MAINHEATC ENERGY EFF | Good |
| MAINHEATC ENV EFF | Good |
| LIGHTING DESCRIPTION | Excellent lighting efficiency |
| LIGHTING ENERGY EFF | Very Good |
| LIGHTING ENV EFF | Very Good |
| MAIN FUEL | Electricity: electricity, unspecified tariff |
| WIND TURBINE COUNT | — |
| HEAT LOSS CORRIDOR | — |
| UNHEATED CORRIDOR LENGTH | — |
| FLOOR HEIGHT | 2.4 |
| PHOTO SUPPLY | — |
| SOLAR WATER HEATING FLAG | — |
| MECHANICAL VENTILATION | — |
| ADDRESS | 23 South John Street |
| LOCAL AUTHORITY LABEL | St. Helens |
| CONSTITUENCY LABEL | St Helens South and Whiston |
| POSTTOWN | ST. HELENS |
| CONSTRUCTION AGE BAND | 2026 |
| LODGEMENT DATETIME | 2026-04-08 08:58:45 |
| TENURE | owner-occupied |
| FIXED LIGHTING OUTLETS COUNT | 14 |
| LOW ENERGY FIXED LIGHT COUNT | 14 |
| UPRN | 39103818 |
| UPRN SOURCE | Address Matched |
| REPORT TYPE | 3 |
| Source file | certificates-2026.csv |
| COUNTRY | England |
| REGION | E12000002 |
| Address display | — |
| Nation | ew |