Energy Performance Certificate
Flat 42, Portman House, HA5 1RJ
Energy rating
Current: 79 C | Potential: 80 C
Environmental impact (CO₂)
Current: 95
| Potential: 95
| Field | Value |
|---|---|
| LMK KEY | 2897-1225-6013-6988-7018 |
| ADDRESS1 | Flat 42 |
| ADDRESS2 | Portman House |
| ADDRESS3 | — |
| POSTCODE | HA5 1RJ |
| BUILDING REFERENCE NUMBER | — |
| CURRENT ENERGY RATING | C |
| POTENTIAL ENERGY RATING | C |
| CURRENT ENERGY EFFICIENCY | 79 |
| POTENTIAL ENERGY EFFICIENCY | 80 |
| PROPERTY TYPE | Flat |
| BUILT FORM | Mid-Terrace |
| INSPECTION DATE | 2025-12-02 |
| LOCAL AUTHORITY | E09000017 |
| CONSTITUENCY | E14001454 |
| COUNTY | — |
| LODGEMENT DATE | 2025-12-03 |
| TRANSACTION TYPE | Rental |
| ENVIRONMENT IMPACT CURRENT | 95 |
| ENVIRONMENT IMPACT POTENTIAL | 95 |
| ENERGY CONSUMPTION CURRENT | 70 |
| ENERGY CONSUMPTION POTENTIAL | 66 |
| CO2 EMISSIONS CURRENT | 0.4 |
| CO2 EMISS CURR PER FLOOR AREA | 7 |
| CO2 EMISSIONS POTENTIAL | 0.4 |
| LIGHTING COST CURRENT | 40 |
| LIGHTING COST POTENTIAL | 40 |
| HEATING COST CURRENT | 303 |
| HEATING COST POTENTIAL | 303 |
| HOT WATER COST CURRENT | 381 |
| HOT WATER COST POTENTIAL | 336 |
| TOTAL FLOOR AREA | 56 |
| ENERGY TARIFF | Single |
| MAINS GAS FLAG | N |
| FLOOR LEVEL | 3 |
| FLAT TOP STOREY | Y |
| 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 | 0 |
| HOTWATER DESCRIPTION | From main system |
| 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 | Timber frame, 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 | Air source heat pump, underfloor, electric |
| MAINHEAT ENERGY EFF | Average |
| MAINHEAT ENV EFF | Very 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 | electricity (not community) |
| WIND TURBINE COUNT | 0 |
| HEAT LOSS CORRIDOR | unheated corridor |
| UNHEATED CORRIDOR LENGTH | 9.36 |
| FLOOR HEIGHT | 2.36 |
| PHOTO SUPPLY | 0 |
| SOLAR WATER HEATING FLAG | N |
| MECHANICAL VENTILATION | natural |
| ADDRESS | Flat 42, Portman House |
| LOCAL AUTHORITY LABEL | Hillingdon |
| CONSTITUENCY LABEL | Ruislip, Northwood and Pinner |
| POSTTOWN | PINNER |
| CONSTRUCTION AGE BAND | England and Wales: 2012-2021 |
| LODGEMENT DATETIME | 2025-12-03 14:31:24 |
| TENURE | rented (private) |
| FIXED LIGHTING OUTLETS COUNT | 14 |
| LOW ENERGY FIXED LIGHT COUNT | 14 |
| UPRN | 10091100554 |
| UPRN SOURCE | Energy Assessor |
| REPORT TYPE | 2 |
| Source file | certificates-2025.csv |
| COUNTRY | England |
| REGION | E12000007 |
| Address display | — |
| Nation | ew |