Energy Performance Certificate
Flat K, 48 Berkeley Square, W1J 5AX
Energy rating
Current: 44 E | Potential: 67 D
Environmental impact (CO₂)
Current: 36
| Potential: 62
| Field | Value |
|---|---|
| LMK KEY | 2102-0041-1711-7059-1710 |
| ADDRESS1 | Flat K |
| ADDRESS2 | 48 Berkeley Square |
| ADDRESS3 | — |
| POSTCODE | W1J 5AX |
| BUILDING REFERENCE NUMBER | — |
| CURRENT ENERGY RATING | E |
| POTENTIAL ENERGY RATING | D |
| CURRENT ENERGY EFFICIENCY | 44 |
| POTENTIAL ENERGY EFFICIENCY | 67 |
| PROPERTY TYPE | Flat |
| BUILT FORM | Not Recorded |
| INSPECTION DATE | 2026-02-26 |
| LOCAL AUTHORITY | E09000033 |
| CONSTITUENCY | E14001172 |
| COUNTY | — |
| LODGEMENT DATE | 2026-03-01 |
| TRANSACTION TYPE | Marketed sale |
| ENVIRONMENT IMPACT CURRENT | 36 |
| ENVIRONMENT IMPACT POTENTIAL | 62 |
| ENERGY CONSUMPTION CURRENT | 288 |
| ENERGY CONSUMPTION POTENTIAL | 151 |
| CO2 EMISSIONS CURRENT | 12 |
| CO2 EMISS CURR PER FLOOR AREA | 53 |
| CO2 EMISSIONS POTENTIAL | 6 |
| LIGHTING COST CURRENT | 92 |
| LIGHTING COST POTENTIAL | 92 |
| HEATING COST CURRENT | 3029 |
| HEATING COST POTENTIAL | 1558 |
| HOT WATER COST CURRENT | 220 |
| HOT WATER COST POTENTIAL | 220 |
| TOTAL FLOOR AREA | 218 |
| ENERGY TARIFF | Unknown |
| MAINS GAS FLAG | Y |
| FLOOR LEVEL | 3 |
| FLAT TOP STOREY | Y |
| FLAT STOREY COUNT | 2 |
| MAIN HEATING CONTROLS | Flat rate charging, programmer and at least two room thermostats |
| MULTI GLAZE PROPORTION | 100 |
| GLAZED TYPE | — |
| GLAZED AREA | — |
| EXTENSION COUNT | 3 |
| NUMBER HABITABLE ROOMS | 5 |
| NUMBER HEATED ROOMS | 5 |
| LOW ENERGY LIGHTING | 100 |
| NUMBER OPEN FIREPLACES | 1 |
| HOTWATER DESCRIPTION | Community scheme |
| 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 | Multiple glazing throughout |
| WINDOWS ENERGY EFF | Poor |
| WINDOWS ENV EFF | Poor |
| WALLS DESCRIPTION | Solid brick, as built, partial insulation (assumed) |
| WALLS ENERGY EFF | Average |
| WALLS ENV EFF | Average |
| SECONDHEAT DESCRIPTION | Room heaters, mains gas |
| SHEATING ENERGY EFF | N/A |
| SHEATING ENV EFF | N/A |
| ROOF DESCRIPTION | Flat, limited insulation |
| ROOF ENERGY EFF | Very Poor |
| ROOF ENV EFF | Very Poor |
| MAINHEAT DESCRIPTION | Community scheme |
| MAINHEAT ENERGY EFF | Good |
| MAINHEAT ENV EFF | Good |
| MAINHEATCONT DESCRIPTION | Flat rate charging, programmer and at least two room thermostats |
| 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 | heated corridor |
| UNHEATED CORRIDOR LENGTH | — |
| FLOOR HEIGHT | 2.43 |
| PHOTO SUPPLY | 0 |
| SOLAR WATER HEATING FLAG | N |
| MECHANICAL VENTILATION | natural |
| ADDRESS | Flat K, 48 Berkeley Square |
| LOCAL AUTHORITY LABEL | Westminster |
| CONSTITUENCY LABEL | Cities of London and Westminster |
| POSTTOWN | LONDON |
| CONSTRUCTION AGE BAND | England and Wales: before 1900 |
| LODGEMENT DATETIME | 2026-03-01 11:41:47 |
| TENURE | owner-occupied |
| FIXED LIGHTING OUTLETS COUNT | 30 |
| LOW ENERGY FIXED LIGHT COUNT | 30 |
| UPRN | 100023473583 |
| UPRN SOURCE | Energy Assessor |
| REPORT TYPE | 2 |
| Source file | certificates-2026.csv |
| COUNTRY | England |
| REGION | E12000007 |
| Address display | — |
| Nation | ew |