Energy Performance Certificate
Flat G.13, St. Johns Building, 79 Marsham Street, SW1P 4SA
Energy rating
Current: 49 E | Potential: 69 C
Environmental impact (CO₂)
Current: 46
| Potential: 50
| Field | Value |
|---|---|
| LMK KEY | 8137-6128-8200-0552-9206 |
| ADDRESS1 | Flat G.13 |
| ADDRESS2 | St. Johns Building |
| ADDRESS3 | 79 Marsham Street |
| POSTCODE | SW1P 4SA |
| BUILDING REFERENCE NUMBER | — |
| CURRENT ENERGY RATING | E |
| POTENTIAL ENERGY RATING | C |
| CURRENT ENERGY EFFICIENCY | 49 |
| POTENTIAL ENERGY EFFICIENCY | 69 |
| PROPERTY TYPE | Flat |
| BUILT FORM | Enclosed Mid-Terrace |
| INSPECTION DATE | 2023-08-02 |
| LOCAL AUTHORITY | E09000033 |
| CONSTITUENCY | E14001172 |
| COUNTY | — |
| LODGEMENT DATE | 2023-08-08 |
| TRANSACTION TYPE | Marketed sale |
| ENVIRONMENT IMPACT CURRENT | 46 |
| ENVIRONMENT IMPACT POTENTIAL | 50 |
| ENERGY CONSUMPTION CURRENT | 377 |
| ENERGY CONSUMPTION POTENTIAL | 337 |
| CO2 EMISSIONS CURRENT | 3.8 |
| CO2 EMISS CURR PER FLOOR AREA | 64 |
| CO2 EMISSIONS POTENTIAL | 3.4 |
| LIGHTING COST CURRENT | 140 |
| LIGHTING COST POTENTIAL | 161 |
| HEATING COST CURRENT | 1660 |
| HEATING COST POTENTIAL | 722 |
| HOT WATER COST CURRENT | 373 |
| HOT WATER COST POTENTIAL | 236 |
| TOTAL FLOOR AREA | 59 |
| ENERGY TARIFF | Unknown |
| MAINS GAS FLAG | N |
| FLOOR LEVEL | 2 |
| FLAT TOP STOREY | N |
| FLAT STOREY COUNT | 1 |
| MAIN HEATING CONTROLS | Programmer and appliance thermostats |
| MULTI GLAZE PROPORTION | 100 |
| GLAZED TYPE | double glazing installed during or after 2002 |
| GLAZED AREA | Normal |
| EXTENSION COUNT | 0 |
| NUMBER HABITABLE ROOMS | 2 |
| NUMBER HEATED ROOMS | 2 |
| LOW ENERGY LIGHTING | 73 |
| NUMBER OPEN FIREPLACES | 0 |
| HOTWATER DESCRIPTION | Electric immersion, off-peak |
| HOT WATER ENERGY EFF | Poor |
| HOT WATER ENV EFF | Poor |
| FLOOR DESCRIPTION | To unheated space, no insulation (assumed) |
| FLOOR ENERGY EFF | N/A |
| FLOOR ENV EFF | N/A |
| WINDOWS DESCRIPTION | Fully double glazed |
| WINDOWS ENERGY EFF | Good |
| WINDOWS ENV EFF | Good |
| 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 | (another dwelling above) |
| ROOF ENERGY EFF | N/A |
| ROOF ENV EFF | N/A |
| MAINHEAT DESCRIPTION | Room heaters, electric |
| MAINHEAT ENERGY EFF | Very Poor |
| MAINHEAT ENV EFF | Poor |
| MAINHEATCONT DESCRIPTION | Programmer and appliance thermostats |
| MAINHEATC ENERGY EFF | Good |
| MAINHEATC ENV EFF | Good |
| LIGHTING DESCRIPTION | Low energy lighting in 73% of fixed outlets |
| LIGHTING ENERGY EFF | Very Good |
| LIGHTING ENV EFF | Very Good |
| MAIN FUEL | electricity (not community) |
| WIND TURBINE COUNT | 0 |
| HEAT LOSS CORRIDOR | heated corridor |
| UNHEATED CORRIDOR LENGTH | — |
| FLOOR HEIGHT | 3.26 |
| PHOTO SUPPLY | 0 |
| SOLAR WATER HEATING FLAG | N |
| MECHANICAL VENTILATION | natural |
| ADDRESS | Flat G.13, St. Johns Building, 79 Marsham Street |
| LOCAL AUTHORITY LABEL | Westminster |
| CONSTITUENCY LABEL | Cities of London and Westminster |
| POSTTOWN | LONDON |
| CONSTRUCTION AGE BAND | England and Wales: 1930-1949 |
| LODGEMENT DATETIME | 2023-08-08 16:26:33 |
| TENURE | owner-occupied |
| FIXED LIGHTING OUTLETS COUNT | 11 |
| LOW ENERGY FIXED LIGHT COUNT | 8 |
| UPRN | 10033559981 |
| UPRN SOURCE | Energy Assessor |
| REPORT TYPE | 2 |
| Source file | certificates-2023.csv |
| COUNTRY | England |
| REGION | E12000007 |
| Address display | — |
| Nation | ew |