Energy Performance Certificate
401 Knightsfield, AL8 7LY
Energy rating
Current: 37 F | Potential: 79 C
Environmental impact (CO₂)
Current: 42
| Potential: 74
| Field | Value |
|---|---|
| LMK KEY | 2250-8581-6040-1309-7001 |
| ADDRESS1 | 401 Knightsfield |
| ADDRESS2 | — |
| ADDRESS3 | — |
| POSTCODE | AL8 7LY |
| BUILDING REFERENCE NUMBER | — |
| CURRENT ENERGY RATING | F |
| POTENTIAL ENERGY RATING | C |
| CURRENT ENERGY EFFICIENCY | 37 |
| POTENTIAL ENERGY EFFICIENCY | 79 |
| PROPERTY TYPE | House |
| BUILT FORM | Detached |
| INSPECTION DATE | 2024-09-03 |
| LOCAL AUTHORITY | E07000241 |
| CONSTITUENCY | E14001573 |
| COUNTY | — |
| LODGEMENT DATE | 2024-09-03 |
| TRANSACTION TYPE | Marketed sale |
| ENVIRONMENT IMPACT CURRENT | 42 |
| ENVIRONMENT IMPACT POTENTIAL | 74 |
| ENERGY CONSUMPTION CURRENT | 325 |
| ENERGY CONSUMPTION POTENTIAL | 124 |
| CO2 EMISSIONS CURRENT | 7.5 |
| CO2 EMISS CURR PER FLOOR AREA | 58 |
| CO2 EMISSIONS POTENTIAL | 3.0 |
| LIGHTING COST CURRENT | 208 |
| LIGHTING COST POTENTIAL | 208 |
| HEATING COST CURRENT | 4106 |
| HEATING COST POTENTIAL | 1637 |
| HOT WATER COST CURRENT | 532 |
| HOT WATER COST POTENTIAL | 185 |
| TOTAL FLOOR AREA | 130 |
| ENERGY TARIFF | Single |
| MAINS GAS FLAG | Y |
| FLOOR LEVEL | — |
| FLAT TOP STOREY | N |
| FLAT STOREY COUNT | 2 |
| MAIN HEATING CONTROLS | Programmer and room thermostats |
| MULTI GLAZE PROPORTION | 93 |
| GLAZED TYPE | double glazing installed during or after 2002 |
| GLAZED AREA | More Than Typical |
| EXTENSION COUNT | 1 |
| NUMBER HABITABLE ROOMS | 7 |
| NUMBER HEATED ROOMS | 7 |
| LOW ENERGY LIGHTING | 79 |
| NUMBER OPEN FIREPLACES | 1 |
| HOTWATER DESCRIPTION | Electric instantaneous at point of use |
| HOT WATER ENERGY EFF | Very Poor |
| HOT WATER ENV EFF | Poor |
| FLOOR DESCRIPTION | Solid, no insulation (assumed) |
| FLOOR ENERGY EFF | N/A |
| FLOOR ENV EFF | N/A |
| WINDOWS DESCRIPTION | Mostly double glazing |
| WINDOWS ENERGY EFF | Good |
| WINDOWS ENV EFF | Good |
| WALLS DESCRIPTION | Cavity wall, filled cavity |
| WALLS ENERGY EFF | Average |
| WALLS ENV EFF | Average |
| SECONDHEAT DESCRIPTION | Room heaters, dual fuel (mineral and wood) |
| SHEATING ENERGY EFF | N/A |
| SHEATING ENV EFF | N/A |
| ROOF DESCRIPTION | Pitched, 200 mm loft insulation |
| ROOF ENERGY EFF | Good |
| ROOF ENV EFF | Good |
| MAINHEAT DESCRIPTION | Room heaters, electric |
| MAINHEAT ENERGY EFF | Very Poor |
| MAINHEAT ENV EFF | Poor |
| MAINHEATCONT DESCRIPTION | Programmer and room thermostats |
| MAINHEATC ENERGY EFF | Good |
| MAINHEATC ENV EFF | Good |
| LIGHTING DESCRIPTION | Low energy lighting in 79% of fixed outlets |
| LIGHTING ENERGY EFF | Very Good |
| LIGHTING ENV EFF | Very Good |
| MAIN FUEL | electricity (not community) |
| WIND TURBINE COUNT | 0 |
| HEAT LOSS CORRIDOR | — |
| UNHEATED CORRIDOR LENGTH | — |
| FLOOR HEIGHT | 2.32 |
| PHOTO SUPPLY | 0 |
| SOLAR WATER HEATING FLAG | N |
| MECHANICAL VENTILATION | natural |
| ADDRESS | 401 Knightsfield |
| LOCAL AUTHORITY LABEL | Welwyn Hatfield |
| CONSTITUENCY LABEL | Welwyn Hatfield |
| POSTTOWN | WELWYN GARDEN CITY |
| CONSTRUCTION AGE BAND | England and Wales: 1950-1966 |
| LODGEMENT DATETIME | 2024-09-03 15:59:49 |
| TENURE | owner-occupied |
| FIXED LIGHTING OUTLETS COUNT | 19 |
| LOW ENERGY FIXED LIGHT COUNT | 15 |
| UPRN | 200003856519 |
| UPRN SOURCE | Energy Assessor |
| REPORT TYPE | 2 |
| Source file | certificates-2024.csv |
| COUNTRY | England |
| REGION | E12000006 |
| Address display | — |
| Nation | ew |