Energy Performance Certificate
40 Maesderw, Sarn, SY16 4BD
Energy rating
Current: 87 B | Potential: 89 B
Environmental impact (CO₂)
Current: 83
| Potential: 86
| Field | Value |
|---|---|
| LMK KEY | 9150-3045-4309-0215-7204 |
| ADDRESS1 | 40 Maesderw |
| ADDRESS2 | Sarn |
| ADDRESS3 | — |
| POSTCODE | SY16 4BD |
| BUILDING REFERENCE NUMBER | — |
| CURRENT ENERGY RATING | B |
| POTENTIAL ENERGY RATING | B |
| CURRENT ENERGY EFFICIENCY | 87 |
| POTENTIAL ENERGY EFFICIENCY | 89 |
| PROPERTY TYPE | House |
| BUILT FORM | Detached |
| INSPECTION DATE | 2025-01-15 |
| LOCAL AUTHORITY | W06000023 |
| CONSTITUENCY | W07000102 |
| COUNTY | — |
| LODGEMENT DATE | 2025-01-15 |
| TRANSACTION TYPE | New dwelling |
| ENVIRONMENT IMPACT CURRENT | 83 |
| ENVIRONMENT IMPACT POTENTIAL | 86 |
| ENERGY CONSUMPTION CURRENT | 60 |
| ENERGY CONSUMPTION POTENTIAL | 50 |
| CO2 EMISSIONS CURRENT | 2.1 |
| CO2 EMISS CURR PER FLOOR AREA | 17 |
| CO2 EMISSIONS POTENTIAL | 1.8 |
| LIGHTING COST CURRENT | 117 |
| LIGHTING COST POTENTIAL | 117 |
| HEATING COST CURRENT | 330 |
| HEATING COST POTENTIAL | 334 |
| HOT WATER COST CURRENT | 162 |
| HOT WATER COST POTENTIAL | 89 |
| TOTAL FLOOR AREA | 126 |
| 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 | Average |
| HOT WATER ENV EFF | Average |
| FLOOR DESCRIPTION | Average thermal transmittance 0.14 W/m²K |
| FLOOR ENERGY EFF | Very Good |
| FLOOR ENV EFF | Very Good |
| WINDOWS DESCRIPTION | High performance glazing |
| WINDOWS ENERGY EFF | Very Good |
| WINDOWS ENV EFF | Very Good |
| WALLS DESCRIPTION | Average thermal transmittance 0.21 W/m²K |
| WALLS ENERGY EFF | Very Good |
| WALLS ENV EFF | Very Good |
| SECONDHEAT DESCRIPTION | None |
| SHEATING ENERGY EFF | N/A |
| SHEATING ENV EFF | N/A |
| ROOF DESCRIPTION | Average thermal transmittance 0.11 W/m²K |
| ROOF ENERGY EFF | Very Good |
| ROOF ENV EFF | Very Good |
| MAINHEAT DESCRIPTION | Boiler and radiators, oil |
| MAINHEAT ENERGY EFF | Average |
| 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 | Oil: heating oil |
| WIND TURBINE COUNT | 0 |
| HEAT LOSS CORRIDOR | — |
| UNHEATED CORRIDOR LENGTH | — |
| FLOOR HEIGHT | 2.4 |
| PHOTO SUPPLY | — |
| SOLAR WATER HEATING FLAG | — |
| MECHANICAL VENTILATION | — |
| ADDRESS | 40 Maesderw, Sarn |
| LOCAL AUTHORITY LABEL | Powys |
| CONSTITUENCY LABEL | Montgomeryshire and Glyndwr |
| POSTTOWN | NEWTOWN |
| CONSTRUCTION AGE BAND | 2025 |
| LODGEMENT DATETIME | 2025-01-15 10:15:53 |
| TENURE | unknown |
| FIXED LIGHTING OUTLETS COUNT | 16 |
| LOW ENERGY FIXED LIGHT COUNT | 16 |
| UPRN | 10096489956 |
| UPRN SOURCE | Energy Assessor |
| REPORT TYPE | 3 |
| Source file | certificates-2025.csv |
| COUNTRY | Wales |
| REGION | W99999999 |
| Address display | — |
| Nation | ew |