Energy Performance Certificate
46 Mill Lane, Sawston, CB22 3HZ
Energy rating
Current: 26 F | Potential: 80 C
Environmental impact (CO₂)
Current: 58
| Potential: 76
| Field | Value |
|---|---|
| LMK KEY | 2511-3053-8203-4775-2204 |
| ADDRESS1 | 46 Mill Lane |
| ADDRESS2 | Sawston |
| ADDRESS3 | — |
| POSTCODE | CB22 3HZ |
| BUILDING REFERENCE NUMBER | — |
| CURRENT ENERGY RATING | F |
| POTENTIAL ENERGY RATING | C |
| CURRENT ENERGY EFFICIENCY | 26 |
| POTENTIAL ENERGY EFFICIENCY | 80 |
| PROPERTY TYPE | House |
| BUILT FORM | Semi-Detached |
| INSPECTION DATE | 2025-07-29 |
| LOCAL AUTHORITY | E07000012 |
| CONSTITUENCY | E14001481 |
| COUNTY | — |
| LODGEMENT DATE | 2025-07-31 |
| TRANSACTION TYPE | Marketed sale |
| ENVIRONMENT IMPACT CURRENT | 58 |
| ENVIRONMENT IMPACT POTENTIAL | 76 |
| ENERGY CONSUMPTION CURRENT | 415 |
| ENERGY CONSUMPTION POTENTIAL | 130 |
| CO2 EMISSIONS CURRENT | 3.7 |
| CO2 EMISS CURR PER FLOOR AREA | 45 |
| CO2 EMISSIONS POTENTIAL | 2.1 |
| LIGHTING COST CURRENT | 205 |
| LIGHTING COST POTENTIAL | 56 |
| HEATING COST CURRENT | 2826 |
| HEATING COST POTENTIAL | 577 |
| HOT WATER COST CURRENT | 853 |
| HOT WATER COST POTENTIAL | 212 |
| TOTAL FLOOR AREA | 82 |
| ENERGY TARIFF | dual |
| MAINS GAS FLAG | Y |
| FLOOR LEVEL | — |
| FLAT TOP STOREY | N |
| FLAT STOREY COUNT | 2 |
| MAIN HEATING CONTROLS | Manual charge control |
| MULTI GLAZE PROPORTION | 0 |
| GLAZED TYPE | — |
| GLAZED AREA | — |
| EXTENSION COUNT | 1 |
| NUMBER HABITABLE ROOMS | 6 |
| NUMBER HEATED ROOMS | 2 |
| LOW ENERGY LIGHTING | — |
| NUMBER OPEN FIREPLACES | — |
| HOTWATER DESCRIPTION | Electric immersion, off-peak |
| HOT WATER ENERGY EFF | Poor |
| HOT WATER ENV EFF | Very Good |
| FLOOR DESCRIPTION | Suspended, no insulation (assumed) |
| 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 | Very Poor |
| WALLS ENV EFF | Very Poor |
| SECONDHEAT DESCRIPTION | Room heaters, mains gas |
| SHEATING ENERGY EFF | N/A |
| SHEATING ENV EFF | N/A |
| ROOF DESCRIPTION | Pitched, 100 mm loft insulation |
| ROOF ENERGY EFF | Average |
| ROOF ENV EFF | Average |
| MAINHEAT DESCRIPTION | Electric storage heaters |
| MAINHEAT ENERGY EFF | Average |
| MAINHEAT ENV EFF | Very Good |
| MAINHEATCONT DESCRIPTION | Manual charge control |
| MAINHEATC ENERGY EFF | Poor |
| MAINHEATC ENV EFF | Poor |
| LIGHTING DESCRIPTION | Below average lighting efficiency |
| LIGHTING ENERGY EFF | Very Poor |
| LIGHTING ENV EFF | Very Poor |
| MAIN FUEL | electricity (not community) |
| WIND TURBINE COUNT | 0 |
| HEAT LOSS CORRIDOR | — |
| UNHEATED CORRIDOR LENGTH | — |
| FLOOR HEIGHT | 2.49 |
| PHOTO SUPPLY | 0 |
| SOLAR WATER HEATING FLAG | N |
| MECHANICAL VENTILATION | natural |
| ADDRESS | 46 Mill Lane, Sawston |
| LOCAL AUTHORITY LABEL | South Cambridgeshire |
| CONSTITUENCY LABEL | South Cambridgeshire |
| POSTTOWN | CAMBRIDGE |
| CONSTRUCTION AGE BAND | England and Wales: 1900-1929 |
| LODGEMENT DATETIME | 2025-07-31 14:42:27 |
| TENURE | owner-occupied |
| FIXED LIGHTING OUTLETS COUNT | 10 |
| LOW ENERGY FIXED LIGHT COUNT | — |
| UPRN | 100090150902 |
| UPRN SOURCE | Energy Assessor |
| REPORT TYPE | 2 |
| Source file | certificates-2025.csv |
| COUNTRY | England |
| REGION | E12000006 |
| Address display | — |
| Nation | ew |