Energy Performance Certificate
Flat 403, Marble Arch Apartments, 11 Harrowby Street, W1H 5PR
Energy rating
Current: 74 C | Potential: 78 C
Environmental impact (CO₂)
Current: 75
| Potential: 81
| Field | Value |
|---|---|
| LMK KEY | 6324-7245-1002-0809-0092 |
| ADDRESS1 | Flat 403 |
| ADDRESS2 | Marble Arch Apartments |
| ADDRESS3 | 11 Harrowby Street |
| POSTCODE | W1H 5PR |
| BUILDING REFERENCE NUMBER | — |
| CURRENT ENERGY RATING | C |
| POTENTIAL ENERGY RATING | C |
| CURRENT ENERGY EFFICIENCY | 74 |
| POTENTIAL ENERGY EFFICIENCY | 78 |
| PROPERTY TYPE | Flat |
| BUILT FORM | Mid-Terrace |
| INSPECTION DATE | 2025-11-07 |
| LOCAL AUTHORITY | E09000033 |
| CONSTITUENCY | E14001172 |
| COUNTY | — |
| LODGEMENT DATE | 2025-11-07 |
| TRANSACTION TYPE | Rental |
| ENVIRONMENT IMPACT CURRENT | 75 |
| ENVIRONMENT IMPACT POTENTIAL | 81 |
| ENERGY CONSUMPTION CURRENT | 166 |
| ENERGY CONSUMPTION POTENTIAL | 126 |
| CO2 EMISSIONS CURRENT | 1.6 |
| CO2 EMISS CURR PER FLOOR AREA | 30 |
| CO2 EMISSIONS POTENTIAL | 1.2 |
| LIGHTING COST CURRENT | 42 |
| LIGHTING COST POTENTIAL | 42 |
| HEATING COST CURRENT | 308 |
| HEATING COST POTENTIAL | 242 |
| HOT WATER COST CURRENT | 181 |
| HOT WATER COST POTENTIAL | 152 |
| TOTAL FLOOR AREA | 52 |
| ENERGY TARIFF | Unknown |
| MAINS GAS FLAG | Y |
| FLOOR LEVEL | 0 |
| FLAT TOP STOREY | N |
| FLAT STOREY COUNT | 1 |
| MAIN HEATING CONTROLS | Flat rate charging, room thermostat only |
| MULTI GLAZE PROPORTION | 100 |
| GLAZED TYPE | — |
| GLAZED AREA | — |
| EXTENSION COUNT | 0 |
| NUMBER HABITABLE ROOMS | 2 |
| NUMBER HEATED ROOMS | 2 |
| LOW ENERGY LIGHTING | 100 |
| NUMBER OPEN FIREPLACES | 0 |
| HOTWATER DESCRIPTION | Community scheme |
| HOT WATER ENERGY EFF | Average |
| HOT WATER ENV EFF | Average |
| FLOOR DESCRIPTION | Solid, no insulation (assumed) |
| FLOOR ENERGY EFF | N/A |
| FLOOR ENV EFF | N/A |
| WINDOWS DESCRIPTION | Fully double glazed |
| WINDOWS ENERGY EFF | Average |
| WINDOWS ENV EFF | Average |
| 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 | Average |
| MAINHEAT ENV EFF | Average |
| MAINHEATCONT DESCRIPTION | Flat rate charging, room thermostat only |
| MAINHEATC ENERGY EFF | Poor |
| MAINHEATC ENV EFF | Poor |
| 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 | 2.48 |
| PHOTO SUPPLY | 0 |
| SOLAR WATER HEATING FLAG | N |
| MECHANICAL VENTILATION | natural |
| ADDRESS | Flat 403, Marble Arch Apartments, 11 Harrowby Street |
| LOCAL AUTHORITY LABEL | Westminster |
| CONSTITUENCY LABEL | Cities of London and Westminster |
| POSTTOWN | LONDON |
| CONSTRUCTION AGE BAND | England and Wales: 1900-1929 |
| LODGEMENT DATETIME | 2025-11-07 12:59:32 |
| TENURE | rented (private) |
| FIXED LIGHTING OUTLETS COUNT | 6 |
| LOW ENERGY FIXED LIGHT COUNT | 6 |
| UPRN | 200002817604 |
| UPRN SOURCE | Energy Assessor |
| REPORT TYPE | 2 |
| Source file | certificates-2025.csv |
| COUNTRY | England |
| REGION | E12000007 |
| Address display | — |
| Nation | ew |