Energy Performance Certificate
Flat 29, St. Marys House, St. Marys Road, PO3 6AB
Energy rating
Current: 66 D | Potential: 79 C
Environmental impact (CO₂)
Current: 91
| Potential: 92
| Field | Value |
|---|---|
| LMK KEY | 0256-0277-2016-9103-5904 |
| ADDRESS1 | Flat 29 |
| ADDRESS2 | St. Marys House |
| ADDRESS3 | St. Marys Road |
| POSTCODE | PO3 6AB |
| BUILDING REFERENCE NUMBER | — |
| CURRENT ENERGY RATING | D |
| POTENTIAL ENERGY RATING | C |
| CURRENT ENERGY EFFICIENCY | 66 |
| POTENTIAL ENERGY EFFICIENCY | 79 |
| PROPERTY TYPE | Flat |
| BUILT FORM | Enclosed End-Terrace |
| INSPECTION DATE | 2026-05-29 |
| LOCAL AUTHORITY | E06000044 |
| CONSTITUENCY | E14001431 |
| COUNTY | — |
| LODGEMENT DATE | 2026-05-29 |
| TRANSACTION TYPE | Marketed sale |
| ENVIRONMENT IMPACT CURRENT | 91 |
| ENVIRONMENT IMPACT POTENTIAL | 92 |
| ENERGY CONSUMPTION CURRENT | 108 |
| ENERGY CONSUMPTION POTENTIAL | 109 |
| CO2 EMISSIONS CURRENT | 0.6 |
| CO2 EMISS CURR PER FLOOR AREA | 10 |
| CO2 EMISSIONS POTENTIAL | 0.6 |
| LIGHTING COST CURRENT | 50 |
| LIGHTING COST POTENTIAL | 58 |
| HEATING COST CURRENT | 491 |
| HEATING COST POTENTIAL | 460 |
| HOT WATER COST CURRENT | 573 |
| HOT WATER COST POTENTIAL | 359 |
| TOTAL FLOOR AREA | 58 |
| ENERGY TARIFF | Single |
| MAINS GAS FLAG | N |
| FLOOR LEVEL | 3 |
| FLAT TOP STOREY | N |
| FLAT STOREY COUNT | 1 |
| MAIN HEATING CONTROLS | Programmer and room thermostats |
| 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 | Electric immersion, standard tariff |
| HOT WATER ENERGY EFF | Very Poor |
| HOT WATER ENV EFF | Very 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 | Solid brick, as built, no insulation (assumed) |
| WALLS ENERGY EFF | Very Poor |
| WALLS ENV EFF | Very Poor |
| SECONDHEAT DESCRIPTION | None |
| 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 | Very Good |
| MAINHEATCONT DESCRIPTION | Programmer and room 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 | unheated corridor |
| UNHEATED CORRIDOR LENGTH | 6.97 |
| FLOOR HEIGHT | 2.26 |
| PHOTO SUPPLY | 0 |
| SOLAR WATER HEATING FLAG | N |
| MECHANICAL VENTILATION | natural |
| ADDRESS | Flat 29, St. Marys House, St. Marys Road |
| LOCAL AUTHORITY LABEL | Portsmouth |
| CONSTITUENCY LABEL | Portsmouth North |
| POSTTOWN | PORTSMOUTH |
| CONSTRUCTION AGE BAND | England and Wales: before 1900 |
| LODGEMENT DATETIME | 2026-05-29 19:53:32 |
| TENURE | owner-occupied |
| FIXED LIGHTING OUTLETS COUNT | 6 |
| LOW ENERGY FIXED LIGHT COUNT | 6 |
| UPRN | 1775092693 |
| UPRN SOURCE | Energy Assessor |
| REPORT TYPE | 2 |
| Source file | certificates-2026.csv |
| COUNTRY | England |
| REGION | E12000008 |
| Address display | — |
| Nation | ew |