Energy Performance Certificate
Flat 55, Cornwall House 55-57, High Street, SL1 1DZ
Energy rating
Current: 66 D | Potential: 78 C
Environmental impact (CO₂)
Current: 89
| Potential: 90
| Field | Value |
|---|---|
| LMK KEY | 6304-9026-6002-1796-9502 |
| ADDRESS1 | Flat 55 |
| ADDRESS2 | Cornwall House 55-57 |
| ADDRESS3 | High Street |
| POSTCODE | SL1 1DZ |
| BUILDING REFERENCE NUMBER | — |
| CURRENT ENERGY RATING | D |
| POTENTIAL ENERGY RATING | C |
| CURRENT ENERGY EFFICIENCY | 66 |
| POTENTIAL ENERGY EFFICIENCY | 78 |
| PROPERTY TYPE | Maisonette |
| BUILT FORM | Semi-Detached |
| INSPECTION DATE | 2026-06-17 |
| LOCAL AUTHORITY | E06000039 |
| CONSTITUENCY | E14001477 |
| COUNTY | — |
| LODGEMENT DATE | 2026-06-19 |
| TRANSACTION TYPE | Rental |
| ENVIRONMENT IMPACT CURRENT | 89 |
| ENVIRONMENT IMPACT POTENTIAL | 90 |
| ENERGY CONSUMPTION CURRENT | 120 |
| ENERGY CONSUMPTION POTENTIAL | 117 |
| CO2 EMISSIONS CURRENT | 1.0 |
| CO2 EMISS CURR PER FLOOR AREA | 11 |
| CO2 EMISSIONS POTENTIAL | 0.9 |
| LIGHTING COST CURRENT | 54 |
| LIGHTING COST POTENTIAL | 58 |
| HEATING COST CURRENT | 1058 |
| HEATING COST POTENTIAL | 621 |
| HOT WATER COST CURRENT | 459 |
| HOT WATER COST POTENTIAL | 417 |
| TOTAL FLOOR AREA | 86 |
| ENERGY TARIFF | dual |
| MAINS GAS FLAG | N |
| FLOOR LEVEL | 3 |
| FLAT TOP STOREY | N |
| FLAT STOREY COUNT | 2 |
| MAIN HEATING CONTROLS | Appliance thermostats |
| MULTI GLAZE PROPORTION | 100 |
| GLAZED TYPE | — |
| GLAZED AREA | — |
| EXTENSION COUNT | 0 |
| NUMBER HABITABLE ROOMS | 3 |
| NUMBER HEATED ROOMS | 3 |
| LOW ENERGY LIGHTING | 100 |
| NUMBER OPEN FIREPLACES | 0 |
| HOTWATER DESCRIPTION | Electric immersion, off-peak |
| HOT WATER ENERGY EFF | Average |
| HOT WATER ENV EFF | Very Good |
| FLOOR DESCRIPTION | (another dwelling below) |
| 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 | System built, as built, insulated (assumed) |
| WALLS ENERGY EFF | Good |
| WALLS ENV EFF | Good |
| SECONDHEAT DESCRIPTION | None |
| SHEATING ENERGY EFF | N/A |
| SHEATING ENV EFF | N/A |
| ROOF DESCRIPTION | Flat, insulated |
| ROOF ENERGY EFF | Good |
| ROOF ENV EFF | Good |
| MAINHEAT DESCRIPTION | Room heaters, electric |
| MAINHEAT ENERGY EFF | Poor |
| MAINHEAT ENV EFF | Very Good |
| MAINHEATCONT DESCRIPTION | Appliance thermostats |
| MAINHEATC ENERGY EFF | Good |
| MAINHEATC ENV EFF | Good |
| LIGHTING DESCRIPTION | Excellent lighting efficiency |
| LIGHTING ENERGY EFF | Very Good |
| LIGHTING ENV EFF | Very Good |
| MAIN FUEL | electricity (not community) |
| WIND TURBINE COUNT | 0 |
| HEAT LOSS CORRIDOR | unheated corridor |
| UNHEATED CORRIDOR LENGTH | 7.69 |
| FLOOR HEIGHT | 2.35 |
| PHOTO SUPPLY | 0 |
| SOLAR WATER HEATING FLAG | N |
| MECHANICAL VENTILATION | natural |
| ADDRESS | Flat 55, Cornwall House 55-57, High Street |
| LOCAL AUTHORITY LABEL | Slough |
| CONSTITUENCY LABEL | Slough |
| POSTTOWN | SLOUGH |
| CONSTRUCTION AGE BAND | England and Wales: 2012-2021 |
| LODGEMENT DATETIME | 2026-06-19 10:06:56 |
| TENURE | rented (private) |
| FIXED LIGHTING OUTLETS COUNT | 25 |
| LOW ENERGY FIXED LIGHT COUNT | 25 |
| UPRN | 10090769654 |
| UPRN SOURCE | Energy Assessor |
| REPORT TYPE | 2 |
| Source file | certificates-2026.csv |
| COUNTRY | England |
| REGION | E12000008 |
| Address display | — |
| Nation | ew |