Energy Performance Certificate
28 Boswell Close, Llanrumney, CF3 5NY
Energy rating
Current: 71 C | Potential: 78 C
Environmental impact (CO₂)
Current: 77
| Potential: 80
| Field | Value |
|---|---|
| LMK KEY | 9135-7920-0509-0259-4202 |
| ADDRESS1 | 28 Boswell Close |
| ADDRESS2 | Llanrumney |
| ADDRESS3 | — |
| POSTCODE | CF3 5NY |
| BUILDING REFERENCE NUMBER | — |
| CURRENT ENERGY RATING | C |
| POTENTIAL ENERGY RATING | C |
| CURRENT ENERGY EFFICIENCY | 71 |
| POTENTIAL ENERGY EFFICIENCY | 78 |
| PROPERTY TYPE | House |
| BUILT FORM | End-Terrace |
| INSPECTION DATE | 2025-10-01 |
| LOCAL AUTHORITY | W06000015 |
| CONSTITUENCY | W07000089 |
| COUNTY | — |
| LODGEMENT DATE | 2025-10-01 |
| TRANSACTION TYPE | Marketed sale |
| ENVIRONMENT IMPACT CURRENT | 77 |
| ENVIRONMENT IMPACT POTENTIAL | 80 |
| ENERGY CONSUMPTION CURRENT | 145 |
| ENERGY CONSUMPTION POTENTIAL | 116 |
| CO2 EMISSIONS CURRENT | 1.8 |
| CO2 EMISS CURR PER FLOOR AREA | 25 |
| CO2 EMISSIONS POTENTIAL | 1.5 |
| LIGHTING COST CURRENT | 48 |
| LIGHTING COST POTENTIAL | 48 |
| HEATING COST CURRENT | 597 |
| HEATING COST POTENTIAL | 548 |
| HOT WATER COST CURRENT | 282 |
| HOT WATER COST POTENTIAL | 282 |
| TOTAL FLOOR AREA | 73 |
| ENERGY TARIFF | Single |
| MAINS GAS FLAG | Y |
| FLOOR LEVEL | — |
| FLAT TOP STOREY | N |
| FLAT STOREY COUNT | 2 |
| MAIN HEATING CONTROLS | Programmer, room thermostat and TRVs |
| MULTI GLAZE PROPORTION | 100 |
| GLAZED TYPE | — |
| GLAZED AREA | — |
| EXTENSION COUNT | 0 |
| NUMBER HABITABLE ROOMS | 5 |
| NUMBER HEATED ROOMS | 5 |
| LOW ENERGY LIGHTING | 100 |
| NUMBER OPEN FIREPLACES | — |
| HOTWATER DESCRIPTION | From main system |
| HOT WATER ENERGY EFF | Good |
| HOT WATER ENV EFF | Good |
| FLOOR DESCRIPTION | Solid, no 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 | Cavity wall, filled cavity |
| WALLS ENERGY EFF | Good |
| WALLS ENV EFF | Good |
| SECONDHEAT DESCRIPTION | None |
| SHEATING ENERGY EFF | N/A |
| SHEATING ENV EFF | N/A |
| ROOF DESCRIPTION | Pitched, 270 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 | Programmer, room thermostat and TRVs |
| 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 | mains gas (not community) |
| WIND TURBINE COUNT | 0 |
| HEAT LOSS CORRIDOR | — |
| UNHEATED CORRIDOR LENGTH | — |
| FLOOR HEIGHT | 2.4 |
| PHOTO SUPPLY | 0 |
| SOLAR WATER HEATING FLAG | N |
| MECHANICAL VENTILATION | natural |
| ADDRESS | 28 Boswell Close, Llanrumney |
| LOCAL AUTHORITY LABEL | Cardiff |
| CONSTITUENCY LABEL | Cardiff East |
| POSTTOWN | CARDIFF |
| CONSTRUCTION AGE BAND | England and Wales: 1991-1995 |
| LODGEMENT DATETIME | 2025-10-01 10:48:15 |
| TENURE | owner-occupied |
| FIXED LIGHTING OUTLETS COUNT | 9 |
| LOW ENERGY FIXED LIGHT COUNT | 9 |
| UPRN | 100100109773 |
| UPRN SOURCE | Energy Assessor |
| REPORT TYPE | 2 |
| Source file | certificates-2025.csv |
| COUNTRY | Wales |
| REGION | W99999999 |
| Address display | — |
| Nation | ew |