Energy Performance Certificate
Flat C, 314 St John Street, EC1V 4NT
Energy rating
Current: 57 D | Potential: 75 C
Environmental impact (CO₂)
Current: 52
| Potential: 77
| Field | Value |
|---|---|
| LMK KEY | 9804-3956-1209-5845-4200 |
| ADDRESS1 | Flat C |
| ADDRESS2 | 314 St John Street |
| ADDRESS3 | — |
| POSTCODE | EC1V 4NT |
| BUILDING REFERENCE NUMBER | — |
| CURRENT ENERGY RATING | D |
| POTENTIAL ENERGY RATING | C |
| CURRENT ENERGY EFFICIENCY | 57 |
| POTENTIAL ENERGY EFFICIENCY | 75 |
| PROPERTY TYPE | Maisonette |
| BUILT FORM | Not Recorded |
| INSPECTION DATE | 2025-11-10 |
| LOCAL AUTHORITY | E09000019 |
| CONSTITUENCY | E14001306 |
| COUNTY | — |
| LODGEMENT DATE | 2025-11-16 |
| TRANSACTION TYPE | Rental |
| ENVIRONMENT IMPACT CURRENT | 52 |
| ENVIRONMENT IMPACT POTENTIAL | 77 |
| ENERGY CONSUMPTION CURRENT | 290 |
| ENERGY CONSUMPTION POTENTIAL | 138 |
| CO2 EMISSIONS CURRENT | 3.4 |
| CO2 EMISS CURR PER FLOOR AREA | 53 |
| CO2 EMISSIONS POTENTIAL | 1.6 |
| LIGHTING COST CURRENT | 45 |
| LIGHTING COST POTENTIAL | 46 |
| HEATING COST CURRENT | 712 |
| HEATING COST POTENTIAL | 434 |
| HOT WATER COST CURRENT | 478 |
| HOT WATER COST POTENTIAL | 198 |
| TOTAL FLOOR AREA | 64 |
| ENERGY TARIFF | Unknown |
| MAINS GAS FLAG | Y |
| FLOOR LEVEL | 3 |
| FLAT TOP STOREY | Y |
| FLAT STOREY COUNT | 1 |
| MAIN HEATING CONTROLS | Programmer, TRVs and bypass |
| MULTI GLAZE PROPORTION | 0 |
| GLAZED TYPE | — |
| GLAZED AREA | — |
| EXTENSION COUNT | 0 |
| NUMBER HABITABLE ROOMS | 3 |
| NUMBER HEATED ROOMS | 3 |
| LOW ENERGY LIGHTING | 100 |
| NUMBER OPEN FIREPLACES | — |
| HOTWATER DESCRIPTION | From main system, no cylinder thermostat |
| HOT WATER ENERGY EFF | Poor |
| HOT WATER ENV EFF | Poor |
| 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 | Room heaters, mains gas |
| SHEATING ENERGY EFF | N/A |
| SHEATING ENV EFF | N/A |
| ROOF DESCRIPTION | Roof room(s), limited insulation (assumed) |
| ROOF ENERGY EFF | Poor |
| ROOF ENV EFF | Poor |
| MAINHEAT DESCRIPTION | Boiler and radiators, mains gas |
| MAINHEAT ENERGY EFF | Good |
| MAINHEAT ENV EFF | Good |
| MAINHEATCONT DESCRIPTION | Programmer, TRVs and bypass |
| MAINHEATC ENERGY EFF | Average |
| MAINHEATC ENV EFF | Average |
| 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 | no corridor |
| UNHEATED CORRIDOR LENGTH | — |
| FLOOR HEIGHT | 2.37 |
| PHOTO SUPPLY | 0 |
| SOLAR WATER HEATING FLAG | N |
| MECHANICAL VENTILATION | natural |
| ADDRESS | Flat C, 314 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 | 2025-11-16 21:05:38 |
| TENURE | rented (social) |
| FIXED LIGHTING OUTLETS COUNT | 8 |
| LOW ENERGY FIXED LIGHT COUNT | 8 |
| UPRN | 10007028689 |
| UPRN SOURCE | Energy Assessor |
| REPORT TYPE | 2 |
| Source file | certificates-2025.csv |
| COUNTRY | England |
| REGION | E12000007 |
| Address display | — |
| Nation | ew |