Energy Performance Certificate
Flat 4, 31 High Street, HP1 3AA
Energy rating
Current: 48 E | Potential: 75 C
Environmental impact (CO₂)
Current: 86
| Potential: 91
| Field | Value |
|---|---|
| LMK KEY | 4903-0256-1002-1095-0106 |
| ADDRESS1 | Flat 4 |
| ADDRESS2 | 31 High Street |
| ADDRESS3 | — |
| POSTCODE | HP1 3AA |
| BUILDING REFERENCE NUMBER | — |
| CURRENT ENERGY RATING | E |
| POTENTIAL ENERGY RATING | C |
| CURRENT ENERGY EFFICIENCY | 48 |
| POTENTIAL ENERGY EFFICIENCY | 75 |
| PROPERTY TYPE | Flat |
| BUILT FORM | Enclosed Mid-Terrace |
| INSPECTION DATE | 2026-05-11 |
| LOCAL AUTHORITY | E07000096 |
| CONSTITUENCY | E14001278 |
| COUNTY | — |
| LODGEMENT DATE | 2026-05-24 |
| TRANSACTION TYPE | Rental |
| ENVIRONMENT IMPACT CURRENT | 86 |
| ENVIRONMENT IMPACT POTENTIAL | 91 |
| ENERGY CONSUMPTION CURRENT | 202 |
| ENERGY CONSUMPTION POTENTIAL | 150 |
| CO2 EMISSIONS CURRENT | 0.9 |
| CO2 EMISS CURR PER FLOOR AREA | 19 |
| CO2 EMISSIONS POTENTIAL | 0.6 |
| LIGHTING COST CURRENT | 33 |
| LIGHTING COST POTENTIAL | 39 |
| HEATING COST CURRENT | 1183 |
| HEATING COST POTENTIAL | 602 |
| HOT WATER COST CURRENT | 511 |
| HOT WATER COST POTENTIAL | 383 |
| TOTAL FLOOR AREA | 47 |
| ENERGY TARIFF | Unknown |
| MAINS GAS FLAG | N |
| FLOOR LEVEL | 2 |
| FLAT TOP STOREY | N |
| FLAT STOREY COUNT | 1 |
| MAIN HEATING CONTROLS | Appliance thermostats |
| MULTI GLAZE PROPORTION | 0 |
| 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 | Electric immersion, standard tariff |
| HOT WATER ENERGY EFF | Very Poor |
| HOT WATER ENV EFF | Very Good |
| FLOOR DESCRIPTION | (other premises below) |
| FLOOR ENERGY EFF | N/A |
| FLOOR ENV EFF | N/A |
| WINDOWS DESCRIPTION | Single glazed |
| WINDOWS ENERGY EFF | Very Poor |
| WINDOWS ENV EFF | Very Poor |
| WALLS DESCRIPTION | Solid brick, 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 | (another dwelling above) |
| ROOF ENERGY EFF | N/A |
| ROOF ENV EFF | N/A |
| MAINHEAT DESCRIPTION | Room heaters, electric |
| MAINHEAT ENERGY EFF | Very Poor |
| MAINHEAT ENV EFF | Very Good |
| MAINHEATCONT DESCRIPTION | Appliance thermostats |
| 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 | electricity (not community) |
| WIND TURBINE COUNT | 0 |
| HEAT LOSS CORRIDOR | stairwell |
| UNHEATED CORRIDOR LENGTH | 3.7 |
| FLOOR HEIGHT | 2.89 |
| PHOTO SUPPLY | 0 |
| SOLAR WATER HEATING FLAG | N |
| MECHANICAL VENTILATION | natural |
| ADDRESS | Flat 4, 31 High Street |
| LOCAL AUTHORITY LABEL | Dacorum |
| CONSTITUENCY LABEL | Hemel Hempstead |
| POSTTOWN | HEMEL HEMPSTEAD |
| CONSTRUCTION AGE BAND | England and Wales: before 1900 |
| LODGEMENT DATETIME | 2026-05-24 08:02:29 |
| TENURE | rented (social) |
| FIXED LIGHTING OUTLETS COUNT | 20 |
| LOW ENERGY FIXED LIGHT COUNT | 20 |
| UPRN | 10002010413 |
| UPRN SOURCE | Energy Assessor |
| REPORT TYPE | 2 |
| Source file | certificates-2026.csv |
| COUNTRY | England |
| REGION | E12000006 |
| Address display | — |
| Nation | ew |