Energy Performance Certificate
Flat G.14, St. Johns Building, 79 Marsham Street, SW1P 4SA
Energy rating
Current: 62 D | Potential: 63 D
Environmental impact (CO₂)
Current: 63
| Potential: 64
| Field | Value |
|---|---|
| LMK KEY | 2061-4254-1040-1307-5301 |
| ADDRESS1 | Flat G.14 |
| ADDRESS2 | St. Johns Building |
| ADDRESS3 | 79 Marsham Street |
| POSTCODE | SW1P 4SA |
| BUILDING REFERENCE NUMBER | — |
| CURRENT ENERGY RATING | D |
| POTENTIAL ENERGY RATING | D |
| CURRENT ENERGY EFFICIENCY | 62 |
| POTENTIAL ENERGY EFFICIENCY | 63 |
| PROPERTY TYPE | Flat |
| BUILT FORM | Mid-Terrace |
| INSPECTION DATE | 2024-04-05 |
| LOCAL AUTHORITY | E09000033 |
| CONSTITUENCY | E14001172 |
| COUNTY | — |
| LODGEMENT DATE | 2024-04-05 |
| TRANSACTION TYPE | Rental |
| ENVIRONMENT IMPACT CURRENT | 63 |
| ENVIRONMENT IMPACT POTENTIAL | 64 |
| ENERGY CONSUMPTION CURRENT | 259 |
| ENERGY CONSUMPTION POTENTIAL | 253 |
| CO2 EMISSIONS CURRENT | 3.5 |
| CO2 EMISS CURR PER FLOOR AREA | 44 |
| CO2 EMISSIONS POTENTIAL | 3.4 |
| LIGHTING COST CURRENT | 140 |
| LIGHTING COST POTENTIAL | 140 |
| HEATING COST CURRENT | 1595 |
| HEATING COST POTENTIAL | 1535 |
| HOT WATER COST CURRENT | 337 |
| HOT WATER COST POTENTIAL | 337 |
| TOTAL FLOOR AREA | 80 |
| ENERGY TARIFF | dual |
| MAINS GAS FLAG | N |
| FLOOR LEVEL | 1 |
| FLAT TOP STOREY | N |
| FLAT STOREY COUNT | 1 |
| MAIN HEATING CONTROLS | Time and temperature zone control |
| MULTI GLAZE PROPORTION | 100 |
| GLAZED TYPE | double glazing, unknown install date |
| GLAZED AREA | Normal |
| EXTENSION COUNT | 0 |
| NUMBER HABITABLE ROOMS | 2 |
| NUMBER HEATED ROOMS | 2 |
| LOW ENERGY LIGHTING | 100 |
| NUMBER OPEN FIREPLACES | 0 |
| HOTWATER DESCRIPTION | Electric immersion, off-peak |
| HOT WATER ENERGY EFF | Average |
| HOT WATER ENV EFF | Poor |
| FLOOR DESCRIPTION | Solid, limited 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, insulated (assumed) |
| WALLS ENERGY EFF | Good |
| WALLS ENV EFF | Good |
| SECONDHEAT DESCRIPTION | Room heaters, electric |
| 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 | Very Poor |
| MAINHEAT ENV EFF | Very Poor |
| MAINHEATCONT DESCRIPTION | Time and temperature zone control |
| MAINHEATC ENERGY EFF | Very Good |
| MAINHEATC ENV EFF | Very Good |
| LIGHTING DESCRIPTION | Low energy lighting in all fixed outlets |
| LIGHTING ENERGY EFF | Very Good |
| LIGHTING ENV EFF | Very Good |
| MAIN FUEL | electricity (not community) |
| WIND TURBINE COUNT | 0 |
| HEAT LOSS CORRIDOR | no corridor |
| UNHEATED CORRIDOR LENGTH | — |
| FLOOR HEIGHT | 3.25 |
| PHOTO SUPPLY | 0 |
| SOLAR WATER HEATING FLAG | N |
| MECHANICAL VENTILATION | natural |
| ADDRESS | Flat G.14, 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: 1996-2002 |
| LODGEMENT DATETIME | 2024-04-05 18:15:51 |
| TENURE | rented (private) |
| FIXED LIGHTING OUTLETS COUNT | 22 |
| LOW ENERGY FIXED LIGHT COUNT | 22 |
| UPRN | 10033561217 |
| UPRN SOURCE | Energy Assessor |
| REPORT TYPE | 2 |
| Source file | certificates-2024.csv |
| COUNTRY | England |
| REGION | E12000007 |
| Address display | — |
| Nation | ew |