Energy Performance Certificate
41 Hillfield, AL10 0TY
Energy rating
Current: 57 D | Potential: 74 C
Environmental impact (CO₂)
Current: 52
| Potential: 75
| Field | Value |
|---|---|
| LMK KEY | 2016-1096-6002-0926-8102 |
| ADDRESS1 | 41 Hillfield |
| ADDRESS2 | — |
| ADDRESS3 | — |
| POSTCODE | AL10 0TY |
| BUILDING REFERENCE NUMBER | — |
| CURRENT ENERGY RATING | D |
| POTENTIAL ENERGY RATING | C |
| CURRENT ENERGY EFFICIENCY | 57 |
| POTENTIAL ENERGY EFFICIENCY | 74 |
| PROPERTY TYPE | Flat |
| BUILT FORM | End-Terrace |
| INSPECTION DATE | 2026-06-20 |
| LOCAL AUTHORITY | E07000241 |
| CONSTITUENCY | E14001573 |
| COUNTY | — |
| LODGEMENT DATE | 2026-06-21 |
| TRANSACTION TYPE | Non-marketed sale |
| ENVIRONMENT IMPACT CURRENT | 52 |
| ENVIRONMENT IMPACT POTENTIAL | 75 |
| ENERGY CONSUMPTION CURRENT | 320 |
| ENERGY CONSUMPTION POTENTIAL | 163 |
| CO2 EMISSIONS CURRENT | 3.9 |
| CO2 EMISS CURR PER FLOOR AREA | 59 |
| CO2 EMISSIONS POTENTIAL | 2.0 |
| LIGHTING COST CURRENT | 44 |
| LIGHTING COST POTENTIAL | 44 |
| HEATING COST CURRENT | 1134 |
| HEATING COST POTENTIAL | 526 |
| HOT WATER COST CURRENT | 230 |
| HOT WATER COST POTENTIAL | 226 |
| TOTAL FLOOR AREA | 67 |
| ENERGY TARIFF | Single |
| MAINS GAS FLAG | Y |
| FLOOR LEVEL | 3 |
| FLAT TOP STOREY | Y |
| FLAT STOREY COUNT | 1 |
| MAIN HEATING CONTROLS | Programmer and room thermostat |
| 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 | From main system |
| HOT WATER ENERGY EFF | Good |
| HOT WATER ENV EFF | Good |
| FLOOR DESCRIPTION | (another dwelling below) |
| FLOOR ENERGY EFF | N/A |
| FLOOR ENV EFF | N/A |
| WINDOWS DESCRIPTION | Fully double glazed |
| WINDOWS ENERGY EFF | Poor |
| WINDOWS ENV EFF | Poor |
| WALLS DESCRIPTION | Cavity wall, 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 | Flat, limited insulation |
| ROOF ENERGY EFF | Very Poor |
| ROOF ENV EFF | Very Poor |
| MAINHEAT DESCRIPTION | Warm air, mains gas |
| MAINHEAT ENERGY EFF | Good |
| MAINHEAT ENV EFF | Good |
| MAINHEATCONT DESCRIPTION | Programmer and room thermostat |
| MAINHEATC ENERGY EFF | Average |
| MAINHEATC ENV EFF | Average |
| 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 | no corridor |
| UNHEATED CORRIDOR LENGTH | — |
| FLOOR HEIGHT | 2.5 |
| PHOTO SUPPLY | 0 |
| SOLAR WATER HEATING FLAG | N |
| MECHANICAL VENTILATION | natural |
| ADDRESS | 41 Hillfield |
| LOCAL AUTHORITY LABEL | Welwyn Hatfield |
| CONSTITUENCY LABEL | Welwyn Hatfield |
| POSTTOWN | HATFIELD |
| CONSTRUCTION AGE BAND | England and Wales: 1967-1975 |
| LODGEMENT DATETIME | 2026-06-21 18:21:01 |
| TENURE | owner-occupied |
| FIXED LIGHTING OUTLETS COUNT | 8 |
| LOW ENERGY FIXED LIGHT COUNT | 8 |
| UPRN | 100080961216 |
| UPRN SOURCE | Energy Assessor |
| REPORT TYPE | 2 |
| Source file | certificates-2026.csv |
| COUNTRY | England |
| REGION | E12000006 |
| Address display | — |
| Nation | ew |