Energy Performance Certificate
10 Portway, North Marston, MK18 3PL
Energy rating
Current: 45 E | Potential: 66 D
Environmental impact (CO₂)
Current: 39
| Potential: 56
| Field | Value |
|---|---|
| LMK KEY | 4236-6929-6500-0078-7206 |
| ADDRESS1 | 10 Portway |
| ADDRESS2 | North Marston |
| ADDRESS3 | — |
| POSTCODE | MK18 3PL |
| BUILDING REFERENCE NUMBER | — |
| CURRENT ENERGY RATING | E |
| POTENTIAL ENERGY RATING | D |
| CURRENT ENERGY EFFICIENCY | 45 |
| POTENTIAL ENERGY EFFICIENCY | 66 |
| PROPERTY TYPE | House |
| BUILT FORM | Detached |
| INSPECTION DATE | 2026-01-08 |
| LOCAL AUTHORITY | E06000060 |
| CONSTITUENCY | E14001141 |
| COUNTY | — |
| LODGEMENT DATE | 2026-01-09 |
| TRANSACTION TYPE | Grant scheme |
| ENVIRONMENT IMPACT CURRENT | 39 |
| ENVIRONMENT IMPACT POTENTIAL | 56 |
| ENERGY CONSUMPTION CURRENT | 249 |
| ENERGY CONSUMPTION POTENTIAL | 159 |
| CO2 EMISSIONS CURRENT | 9.9 |
| CO2 EMISS CURR PER FLOOR AREA | 62 |
| CO2 EMISSIONS POTENTIAL | 6.5 |
| LIGHTING COST CURRENT | 74 |
| LIGHTING COST POTENTIAL | 74 |
| HEATING COST CURRENT | 2353 |
| HEATING COST POTENTIAL | 1494 |
| HOT WATER COST CURRENT | 292 |
| HOT WATER COST POTENTIAL | 293 |
| TOTAL FLOOR AREA | 159 |
| ENERGY TARIFF | Single |
| MAINS GAS FLAG | N |
| FLOOR LEVEL | — |
| FLAT TOP STOREY | N |
| FLAT STOREY COUNT | 2 |
| MAIN HEATING CONTROLS | Programmer, room thermostat and TRVs |
| MULTI GLAZE PROPORTION | 99 |
| GLAZED TYPE | — |
| GLAZED AREA | — |
| EXTENSION COUNT | 2 |
| NUMBER HABITABLE ROOMS | 6 |
| NUMBER HEATED ROOMS | 6 |
| LOW ENERGY LIGHTING | 100 |
| NUMBER OPEN FIREPLACES | 1 |
| HOTWATER DESCRIPTION | From main system |
| HOT WATER ENERGY EFF | Average |
| HOT WATER ENV EFF | Average |
| FLOOR DESCRIPTION | Suspended, no insulation (assumed) |
| FLOOR ENERGY EFF | N/A |
| FLOOR ENV EFF | N/A |
| WINDOWS DESCRIPTION | Mostly double glazing |
| 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 | Pitched, 250 mm loft insulation |
| ROOF ENERGY EFF | Good |
| ROOF ENV EFF | Good |
| MAINHEAT DESCRIPTION | Boiler and radiators, oil |
| MAINHEAT ENERGY EFF | Average |
| MAINHEAT ENV EFF | Average |
| MAINHEATCONT DESCRIPTION | Programmer, room thermostat and TRVs |
| 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 | oil (not community) |
| WIND TURBINE COUNT | 0 |
| HEAT LOSS CORRIDOR | — |
| UNHEATED CORRIDOR LENGTH | — |
| FLOOR HEIGHT | 2.5 |
| PHOTO SUPPLY | 0 |
| SOLAR WATER HEATING FLAG | N |
| MECHANICAL VENTILATION | natural |
| ADDRESS | 10 Portway, North Marston |
| LOCAL AUTHORITY LABEL | Buckinghamshire |
| CONSTITUENCY LABEL | Buckingham and Bletchley |
| POSTTOWN | BUCKINGHAM |
| CONSTRUCTION AGE BAND | England and Wales: 1930-1949 |
| LODGEMENT DATETIME | 2026-01-09 15:03:25 |
| TENURE | owner-occupied |
| FIXED LIGHTING OUTLETS COUNT | 20 |
| LOW ENERGY FIXED LIGHT COUNT | 20 |
| UPRN | 766039178 |
| UPRN SOURCE | Energy Assessor |
| REPORT TYPE | 2 |
| Source file | certificates-2026.csv |
| COUNTRY | England |
| REGION | E12000008 |
| Address display | — |
| Nation | ew |