Energy Performance Certificate
14 Simon Close, Portobello Road, W11 3DJ
Energy rating
Current: 78 C | Potential: 94 A
Environmental impact (CO₂)
Current: 81
| Potential: 96
| Field | Value |
|---|---|
| LMK KEY | 1690-7357-0032-0508-3953 |
| ADDRESS1 | 14 Simon Close |
| ADDRESS2 | Portobello Road |
| ADDRESS3 | — |
| POSTCODE | W11 3DJ |
| BUILDING REFERENCE NUMBER | — |
| CURRENT ENERGY RATING | C |
| POTENTIAL ENERGY RATING | A |
| CURRENT ENERGY EFFICIENCY | 78 |
| POTENTIAL ENERGY EFFICIENCY | 94 |
| PROPERTY TYPE | House |
| BUILT FORM | Mid-Terrace |
| INSPECTION DATE | 2025-11-05 |
| LOCAL AUTHORITY | E09000020 |
| CONSTITUENCY | E14001310 |
| COUNTY | — |
| LODGEMENT DATE | 2025-11-05 |
| TRANSACTION TYPE | New dwelling |
| ENVIRONMENT IMPACT CURRENT | 81 |
| ENVIRONMENT IMPACT POTENTIAL | 96 |
| ENERGY CONSUMPTION CURRENT | 132 |
| ENERGY CONSUMPTION POTENTIAL | -1 |
| CO2 EMISSIONS CURRENT | 1.1 |
| CO2 EMISS CURR PER FLOOR AREA | 23 |
| CO2 EMISSIONS POTENTIAL | 0.0 |
| LIGHTING COST CURRENT | 59 |
| LIGHTING COST POTENTIAL | 59 |
| HEATING COST CURRENT | 298 |
| HEATING COST POTENTIAL | 298 |
| HOT WATER COST CURRENT | 120 |
| HOT WATER COST POTENTIAL | 74 |
| TOTAL FLOOR AREA | 49 |
| ENERGY TARIFF | standard tariff |
| MAINS GAS FLAG | — |
| FLOOR LEVEL | — |
| FLAT TOP STOREY | N |
| FLAT STOREY COUNT | 2 |
| MAIN HEATING CONTROLS | Time and temperature zone control |
| MULTI GLAZE PROPORTION | 100 |
| GLAZED TYPE | — |
| GLAZED AREA | — |
| EXTENSION COUNT | — |
| NUMBER HABITABLE ROOMS | — |
| NUMBER HEATED ROOMS | — |
| LOW ENERGY LIGHTING | 100 |
| NUMBER OPEN FIREPLACES | 0 |
| HOTWATER DESCRIPTION | From main system |
| HOT WATER ENERGY EFF | Good |
| HOT WATER ENV EFF | Good |
| FLOOR DESCRIPTION | Average thermal transmittance 0.64 W/m²K |
| FLOOR ENERGY EFF | Poor |
| FLOOR ENV EFF | Poor |
| WINDOWS DESCRIPTION | High performance glazing |
| WINDOWS ENERGY EFF | Very Good |
| WINDOWS ENV EFF | Very Good |
| WALLS DESCRIPTION | Average thermal transmittance 0.30 W/m²K |
| WALLS ENERGY EFF | Good |
| WALLS ENV EFF | Good |
| SECONDHEAT DESCRIPTION | None |
| SHEATING ENERGY EFF | N/A |
| SHEATING ENV EFF | N/A |
| ROOF DESCRIPTION | Average thermal transmittance 0.15 W/m²K |
| ROOF ENERGY EFF | Good |
| ROOF ENV EFF | Good |
| MAINHEAT DESCRIPTION | Boiler and radiators, mains gas |
| MAINHEAT ENERGY EFF | Good |
| MAINHEAT ENV EFF | Good |
| 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 | Gas: mains gas |
| WIND TURBINE COUNT | 0 |
| HEAT LOSS CORRIDOR | — |
| UNHEATED CORRIDOR LENGTH | — |
| FLOOR HEIGHT | 2.4 |
| PHOTO SUPPLY | — |
| SOLAR WATER HEATING FLAG | — |
| MECHANICAL VENTILATION | — |
| ADDRESS | 14 Simon Close, Portobello Road |
| LOCAL AUTHORITY LABEL | Kensington and Chelsea |
| CONSTITUENCY LABEL | Kensington and Bayswater |
| POSTTOWN | LONDON |
| CONSTRUCTION AGE BAND | 2024 |
| LODGEMENT DATETIME | 2025-11-05 08:47:17 |
| TENURE | unknown |
| FIXED LIGHTING OUTLETS COUNT | 30 |
| LOW ENERGY FIXED LIGHT COUNT | 30 |
| UPRN | 217077210 |
| UPRN SOURCE | Energy Assessor |
| REPORT TYPE | 3 |
| Source file | certificates-2025.csv |
| COUNTRY | England |
| REGION | E12000007 |
| Address display | — |
| Nation | ew |