Energy Performance Certificate
Flat E, 337 St John Street, EC1V 4LB
Energy rating
Current: 68 D | Potential: 72 C
Environmental impact (CO₂)
Current: 77
| Potential: 83
| Field | Value |
|---|---|
| LMK KEY | 0151-3053-7208-9115-7204 |
| ADDRESS1 | Flat E |
| ADDRESS2 | 337 St John Street |
| ADDRESS3 | — |
| POSTCODE | EC1V 4LB |
| BUILDING REFERENCE NUMBER | — |
| CURRENT ENERGY RATING | D |
| POTENTIAL ENERGY RATING | C |
| CURRENT ENERGY EFFICIENCY | 68 |
| POTENTIAL ENERGY EFFICIENCY | 72 |
| PROPERTY TYPE | Flat |
| BUILT FORM | Not Recorded |
| INSPECTION DATE | 2025-08-05 |
| LOCAL AUTHORITY | E09000019 |
| CONSTITUENCY | E14001306 |
| COUNTY | — |
| LODGEMENT DATE | 2025-08-15 |
| TRANSACTION TYPE | Rental |
| ENVIRONMENT IMPACT CURRENT | 77 |
| ENVIRONMENT IMPACT POTENTIAL | 83 |
| ENERGY CONSUMPTION CURRENT | 220 |
| ENERGY CONSUMPTION POTENTIAL | 173 |
| CO2 EMISSIONS CURRENT | 1.1 |
| CO2 EMISS CURR PER FLOOR AREA | 37 |
| CO2 EMISSIONS POTENTIAL | 0.8 |
| LIGHTING COST CURRENT | 23 |
| LIGHTING COST POTENTIAL | 23 |
| HEATING COST CURRENT | 355 |
| HEATING COST POTENTIAL | 274 |
| HOT WATER COST CURRENT | 243 |
| HOT WATER COST POTENTIAL | 244 |
| TOTAL FLOOR AREA | 29 |
| ENERGY TARIFF | Single |
| MAINS GAS FLAG | Y |
| FLOOR LEVEL | 3 |
| FLAT TOP STOREY | Y |
| FLAT STOREY COUNT | 1 |
| MAIN HEATING CONTROLS | Programmer, room thermostat and TRVs |
| MULTI GLAZE PROPORTION | 0 |
| GLAZED TYPE | — |
| GLAZED AREA | — |
| EXTENSION COUNT | 0 |
| NUMBER HABITABLE ROOMS | 2 |
| NUMBER HEATED ROOMS | 2 |
| LOW ENERGY LIGHTING | 100 |
| NUMBER OPEN FIREPLACES | — |
| HOTWATER DESCRIPTION | From main system |
| HOT WATER ENERGY EFF | Good |
| HOT WATER ENV EFF | Good |
| FLOOR DESCRIPTION | (another dwelling below) |
| FLOOR ENERGY EFF | N/A |
| FLOOR ENV EFF | N/A |
| WINDOWS DESCRIPTION | Single glazed |
| WINDOWS ENERGY EFF | Very Poor |
| WINDOWS ENV EFF | Very Poor |
| WALLS DESCRIPTION | Solid brick, as built, no insulation (assumed) |
| WALLS ENERGY EFF | Poor |
| WALLS ENV EFF | Poor |
| SECONDHEAT DESCRIPTION | None |
| SHEATING ENERGY EFF | N/A |
| SHEATING ENV EFF | N/A |
| ROOF DESCRIPTION | Pitched, insulated (assumed) |
| ROOF ENERGY EFF | Average |
| ROOF ENV EFF | Average |
| MAINHEAT DESCRIPTION | Boiler and radiators, mains gas |
| MAINHEAT ENERGY EFF | Good |
| MAINHEAT ENV EFF | 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 | mains gas (not community) |
| WIND TURBINE COUNT | 0 |
| HEAT LOSS CORRIDOR | unheated corridor |
| UNHEATED CORRIDOR LENGTH | 6.14 |
| FLOOR HEIGHT | 2.47 |
| PHOTO SUPPLY | 0 |
| SOLAR WATER HEATING FLAG | N |
| MECHANICAL VENTILATION | natural |
| ADDRESS | Flat E, 337 St John Street |
| LOCAL AUTHORITY LABEL | Islington |
| CONSTITUENCY LABEL | Islington South and Finsbury |
| POSTTOWN | LONDON |
| CONSTRUCTION AGE BAND | England and Wales: 1900-1929 |
| LODGEMENT DATETIME | 2025-08-15 17:55:47 |
| TENURE | rented (social) |
| FIXED LIGHTING OUTLETS COUNT | 4 |
| LOW ENERGY FIXED LIGHT COUNT | 4 |
| UPRN | 5300085233 |
| UPRN SOURCE | Energy Assessor |
| REPORT TYPE | 2 |
| Source file | certificates-2025.csv |
| COUNTRY | England |
| REGION | E12000007 |
| Address display | — |
| Nation | ew |