Energy Performance Certificate
Flat 121, Willoughby House, Barbican, EC2Y 8BL
Energy rating
Current: 49 E | Potential: 56 D
Environmental impact (CO₂)
Current: 77
| Potential: 80
| Field | Value |
|---|---|
| LMK KEY | 5121-4036-7002-0095-0302 |
| ADDRESS1 | Flat 121 |
| ADDRESS2 | Willoughby House |
| ADDRESS3 | Barbican |
| POSTCODE | EC2Y 8BL |
| BUILDING REFERENCE NUMBER | — |
| CURRENT ENERGY RATING | E |
| POTENTIAL ENERGY RATING | D |
| CURRENT ENERGY EFFICIENCY | 49 |
| POTENTIAL ENERGY EFFICIENCY | 56 |
| PROPERTY TYPE | Flat |
| BUILT FORM | Mid-Terrace |
| INSPECTION DATE | 2026-05-19 |
| LOCAL AUTHORITY | E09000001 |
| CONSTITUENCY | E14001172 |
| COUNTY | — |
| LODGEMENT DATE | 2026-06-08 |
| TRANSACTION TYPE | Rental |
| ENVIRONMENT IMPACT CURRENT | 77 |
| ENVIRONMENT IMPACT POTENTIAL | 80 |
| ENERGY CONSUMPTION CURRENT | 241 |
| ENERGY CONSUMPTION POTENTIAL | 206 |
| CO2 EMISSIONS CURRENT | 1.9 |
| CO2 EMISS CURR PER FLOOR AREA | 22 |
| CO2 EMISSIONS POTENTIAL | 1.6 |
| LIGHTING COST CURRENT | 57 |
| LIGHTING COST POTENTIAL | 57 |
| HEATING COST CURRENT | 1837 |
| HEATING COST POTENTIAL | 1557 |
| HOT WATER COST CURRENT | 509 |
| HOT WATER COST POTENTIAL | 445 |
| TOTAL FLOOR AREA | 84 |
| ENERGY TARIFF | Unknown |
| MAINS GAS FLAG | N |
| FLOOR LEVEL | 2 |
| FLAT TOP STOREY | N |
| FLAT STOREY COUNT | 1 |
| MAIN HEATING CONTROLS | No time or thermostatic control of room temperature |
| MULTI GLAZE PROPORTION | 51 |
| GLAZED TYPE | — |
| GLAZED AREA | — |
| EXTENSION COUNT | 0 |
| NUMBER HABITABLE ROOMS | 3 |
| NUMBER HEATED ROOMS | 3 |
| LOW ENERGY LIGHTING | 100 |
| NUMBER OPEN FIREPLACES | 0 |
| HOTWATER DESCRIPTION | Electric immersion, off-peak |
| HOT WATER ENERGY EFF | Average |
| HOT WATER ENV EFF | Very Good |
| FLOOR DESCRIPTION | To external air, no insulation (assumed) |
| FLOOR ENERGY EFF | N/A |
| FLOOR ENV EFF | N/A |
| WINDOWS DESCRIPTION | Partial double glazing |
| WINDOWS ENERGY EFF | Very Poor |
| WINDOWS ENV EFF | Very Poor |
| WALLS DESCRIPTION | System built, as built, no insulation (assumed) |
| WALLS ENERGY EFF | Very Poor |
| WALLS ENV EFF | Very Poor |
| SECONDHEAT DESCRIPTION | Portable electric heaters (assumed) |
| 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 | Electric underfloor heating |
| MAINHEAT ENERGY EFF | Average |
| MAINHEAT ENV EFF | Very Good |
| MAINHEATCONT DESCRIPTION | No time or thermostatic control of room temperature |
| MAINHEATC ENERGY EFF | Very Poor |
| MAINHEATC ENV EFF | Very Poor |
| LIGHTING DESCRIPTION | Excellent lighting efficiency |
| LIGHTING ENERGY EFF | Very Good |
| LIGHTING ENV EFF | Very Good |
| MAIN FUEL | electricity (not community) |
| WIND TURBINE COUNT | 0 |
| HEAT LOSS CORRIDOR | unheated corridor |
| UNHEATED CORRIDOR LENGTH | 4.3 |
| FLOOR HEIGHT | 2.5 |
| PHOTO SUPPLY | 0 |
| SOLAR WATER HEATING FLAG | N |
| MECHANICAL VENTILATION | natural |
| ADDRESS | Flat 121, Willoughby House, Barbican |
| LOCAL AUTHORITY LABEL | City of London |
| CONSTITUENCY LABEL | Cities of London and Westminster |
| POSTTOWN | LONDON |
| CONSTRUCTION AGE BAND | England and Wales: 1950-1966 |
| LODGEMENT DATETIME | 2026-06-08 07:33:26 |
| TENURE | rented (private) |
| FIXED LIGHTING OUTLETS COUNT | 15 |
| LOW ENERGY FIXED LIGHT COUNT | 15 |
| UPRN | 200000074531 |
| UPRN SOURCE | Energy Assessor |
| REPORT TYPE | 2 |
| Source file | certificates-2026.csv |
| COUNTRY | England |
| REGION | E12000007 |
| Address display | — |
| Nation | ew |