Energy Performance Certificate
31 St. Johns South, High Street, SO23 9LN
Energy rating
Current: 59 D | Potential: 73 C
Environmental impact (CO₂)
Current: 53
| Potential: 74
| Field | Value |
|---|---|
| LMK KEY | 8235-3629-9509-0134-6292 |
| ADDRESS1 | 31 St. Johns South |
| ADDRESS2 | High Street |
| ADDRESS3 | — |
| POSTCODE | SO23 9LN |
| BUILDING REFERENCE NUMBER | — |
| CURRENT ENERGY RATING | D |
| POTENTIAL ENERGY RATING | C |
| CURRENT ENERGY EFFICIENCY | 59 |
| POTENTIAL ENERGY EFFICIENCY | 73 |
| PROPERTY TYPE | Maisonette |
| BUILT FORM | Not Recorded |
| INSPECTION DATE | 2025-11-14 |
| LOCAL AUTHORITY | E07000094 |
| CONSTITUENCY | E14001587 |
| COUNTY | — |
| LODGEMENT DATE | 2025-11-25 |
| TRANSACTION TYPE | Rental |
| ENVIRONMENT IMPACT CURRENT | 53 |
| ENVIRONMENT IMPACT POTENTIAL | 74 |
| ENERGY CONSUMPTION CURRENT | 318 |
| ENERGY CONSUMPTION POTENTIAL | 178 |
| CO2 EMISSIONS CURRENT | 3.2 |
| CO2 EMISS CURR PER FLOOR AREA | 59 |
| CO2 EMISSIONS POTENTIAL | 1.8 |
| LIGHTING COST CURRENT | 40 |
| LIGHTING COST POTENTIAL | 40 |
| HEATING COST CURRENT | 712 |
| HEATING COST POTENTIAL | 363 |
| HOT WATER COST CURRENT | 175 |
| HOT WATER COST POTENTIAL | 175 |
| TOTAL FLOOR AREA | 54 |
| ENERGY TARIFF | Single |
| MAINS GAS FLAG | Y |
| FLOOR LEVEL | 1 |
| FLAT TOP STOREY | N |
| FLAT STOREY COUNT | 1 |
| MAIN HEATING CONTROLS | Flat rate charging, TRVs |
| MULTI GLAZE PROPORTION | 70 |
| GLAZED TYPE | — |
| GLAZED AREA | — |
| EXTENSION COUNT | 0 |
| NUMBER HABITABLE ROOMS | 2 |
| NUMBER HEATED ROOMS | 2 |
| LOW ENERGY LIGHTING | 100 |
| NUMBER OPEN FIREPLACES | — |
| HOTWATER DESCRIPTION | Community scheme |
| HOT WATER ENERGY EFF | Good |
| HOT WATER ENV EFF | Good |
| FLOOR DESCRIPTION | Solid, no insulation (assumed) |
| FLOOR ENERGY EFF | N/A |
| FLOOR ENV EFF | N/A |
| WINDOWS DESCRIPTION | Partial secondary glazing |
| WINDOWS ENERGY EFF | Very Poor |
| WINDOWS ENV EFF | Very Poor |
| WALLS DESCRIPTION | Solid brick, as built, no insulation (assumed) |
| WALLS ENERGY EFF | Very Poor |
| WALLS ENV EFF | Very Poor |
| SECONDHEAT DESCRIPTION | None |
| 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 | Community scheme |
| MAINHEAT ENERGY EFF | Good |
| MAINHEAT ENV EFF | Good |
| MAINHEATCONT DESCRIPTION | Flat rate charging, TRVs |
| MAINHEATC ENERGY EFF | Average |
| MAINHEATC ENV EFF | Average |
| LIGHTING DESCRIPTION | Excellent lighting efficiency |
| LIGHTING ENERGY EFF | Very Good |
| LIGHTING ENV EFF | Very Good |
| MAIN FUEL | mains gas (community) |
| WIND TURBINE COUNT | 0 |
| HEAT LOSS CORRIDOR | no corridor |
| UNHEATED CORRIDOR LENGTH | — |
| FLOOR HEIGHT | 2.39 |
| PHOTO SUPPLY | 0 |
| SOLAR WATER HEATING FLAG | N |
| MECHANICAL VENTILATION | natural |
| ADDRESS | 31 St. Johns South, High Street |
| LOCAL AUTHORITY LABEL | Winchester |
| CONSTITUENCY LABEL | Winchester |
| POSTTOWN | WINCHESTER |
| CONSTRUCTION AGE BAND | England and Wales: before 1900 |
| LODGEMENT DATETIME | 2025-11-25 13:59:56 |
| TENURE | rented (private) |
| FIXED LIGHTING OUTLETS COUNT | 6 |
| LOW ENERGY FIXED LIGHT COUNT | 6 |
| UPRN | 200000185658 |
| UPRN SOURCE | Energy Assessor |
| REPORT TYPE | 2 |
| Source file | certificates-2025.csv |
| COUNTRY | England |
| REGION | E12000008 |
| Address display | — |
| Nation | ew |