Energy Performance Certificate
48 St. Marys Road, Harefield, UB9 6AE
Energy rating
Current: 66 D | Potential: 89 B
Environmental impact (CO₂)
Current: 73
| Potential: 86
| Field | Value |
|---|---|
| LMK KEY | 0300-2860-8570-2826-5631 |
| ADDRESS1 | 48 St. Marys Road |
| ADDRESS2 | Harefield |
| ADDRESS3 | — |
| POSTCODE | UB9 6AE |
| BUILDING REFERENCE NUMBER | — |
| CURRENT ENERGY RATING | D |
| POTENTIAL ENERGY RATING | B |
| CURRENT ENERGY EFFICIENCY | 66 |
| POTENTIAL ENERGY EFFICIENCY | 89 |
| PROPERTY TYPE | Bungalow |
| BUILT FORM | Semi-Detached |
| INSPECTION DATE | 2026-03-20 |
| LOCAL AUTHORITY | E09000017 |
| CONSTITUENCY | E14001558 |
| COUNTY | — |
| LODGEMENT DATE | 2026-03-26 |
| TRANSACTION TYPE | Grant scheme |
| ENVIRONMENT IMPACT CURRENT | 73 |
| ENVIRONMENT IMPACT POTENTIAL | 86 |
| ENERGY CONSUMPTION CURRENT | 228 |
| ENERGY CONSUMPTION POTENTIAL | 111 |
| CO2 EMISSIONS CURRENT | 1.5 |
| CO2 EMISS CURR PER FLOOR AREA | 39 |
| CO2 EMISSIONS POTENTIAL | 0.7 |
| LIGHTING COST CURRENT | 28 |
| LIGHTING COST POTENTIAL | 28 |
| HEATING COST CURRENT | 546 |
| HEATING COST POTENTIAL | 371 |
| HOT WATER COST CURRENT | 205 |
| HOT WATER COST POTENTIAL | 206 |
| TOTAL FLOOR AREA | 39 |
| ENERGY TARIFF | Single |
| MAINS GAS FLAG | Y |
| FLOOR LEVEL | — |
| FLAT TOP STOREY | N |
| FLAT STOREY COUNT | 1 |
| MAIN HEATING CONTROLS | Time and temperature zone control |
| 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 | — |
| HOTWATER DESCRIPTION | From main system |
| HOT WATER ENERGY EFF | Good |
| HOT WATER ENV EFF | Good |
| FLOOR DESCRIPTION | Suspended, no insulation (assumed) |
| FLOOR ENERGY EFF | N/A |
| FLOOR ENV EFF | N/A |
| WINDOWS DESCRIPTION | High performance glazing |
| 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 | Pitched, 300 mm loft insulation |
| ROOF ENERGY EFF | Very Good |
| ROOF ENV EFF | Very 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 | Excellent lighting efficiency |
| LIGHTING ENERGY EFF | Very Good |
| LIGHTING ENV EFF | Very Good |
| MAIN FUEL | mains gas (not community) |
| WIND TURBINE COUNT | 0 |
| HEAT LOSS CORRIDOR | — |
| UNHEATED CORRIDOR LENGTH | — |
| FLOOR HEIGHT | 2.57 |
| PHOTO SUPPLY | 0 |
| SOLAR WATER HEATING FLAG | N |
| MECHANICAL VENTILATION | natural |
| ADDRESS | 48 St. Marys Road, Harefield |
| LOCAL AUTHORITY LABEL | Hillingdon |
| CONSTITUENCY LABEL | Uxbridge and South Ruislip |
| POSTTOWN | UXBRIDGE |
| CONSTRUCTION AGE BAND | England and Wales: 1930-1949 |
| LODGEMENT DATETIME | 2026-03-26 09:23:05 |
| TENURE | rented (social) |
| FIXED LIGHTING OUTLETS COUNT | 11 |
| LOW ENERGY FIXED LIGHT COUNT | 11 |
| UPRN | 100021494772 |
| UPRN SOURCE | Energy Assessor |
| REPORT TYPE | 2 |
| Source file | certificates-2026.csv |
| COUNTRY | England |
| REGION | E12000007 |
| Address display | — |
| Nation | ew |