Energy Performance Certificate
Apartment 306, Castle Buildings, 32 Castle Street, SA1 1JG
Energy rating
Current: 65 D | Potential: 81 B
Environmental impact (CO₂)
Current: 89
| Potential: 93
| Field | Value |
|---|---|
| LMK KEY | 8100-6366-0422-0690-3463 |
| ADDRESS1 | Apartment 306 |
| ADDRESS2 | Castle Buildings |
| ADDRESS3 | 32 Castle Street |
| POSTCODE | SA1 1JG |
| BUILDING REFERENCE NUMBER | — |
| CURRENT ENERGY RATING | D |
| POTENTIAL ENERGY RATING | B |
| CURRENT ENERGY EFFICIENCY | 65 |
| POTENTIAL ENERGY EFFICIENCY | 81 |
| PROPERTY TYPE | Flat |
| BUILT FORM | Not Recorded |
| INSPECTION DATE | 2026-04-16 |
| LOCAL AUTHORITY | W06000011 |
| CONSTITUENCY | W07000108 |
| COUNTY | — |
| LODGEMENT DATE | 2026-04-20 |
| TRANSACTION TYPE | Rental |
| ENVIRONMENT IMPACT CURRENT | 89 |
| ENVIRONMENT IMPACT POTENTIAL | 93 |
| ENERGY CONSUMPTION CURRENT | 152 |
| ENERGY CONSUMPTION POTENTIAL | 100 |
| CO2 EMISSIONS CURRENT | 0.6 |
| CO2 EMISS CURR PER FLOOR AREA | 14 |
| CO2 EMISSIONS POTENTIAL | 0.4 |
| LIGHTING COST CURRENT | 36 |
| LIGHTING COST POTENTIAL | 39 |
| HEATING COST CURRENT | 682 |
| HEATING COST POTENTIAL | 185 |
| HOT WATER COST CURRENT | 352 |
| HOT WATER COST POTENTIAL | 351 |
| TOTAL FLOOR AREA | 42 |
| ENERGY TARIFF | dual |
| MAINS GAS FLAG | N |
| FLOOR LEVEL | 2 |
| FLAT TOP STOREY | N |
| FLAT STOREY COUNT | 1 |
| MAIN HEATING CONTROLS | Appliance thermostats |
| MULTI GLAZE PROPORTION | 100 |
| GLAZED TYPE | — |
| GLAZED AREA | — |
| EXTENSION COUNT | 0 |
| NUMBER HABITABLE ROOMS | 1 |
| NUMBER HEATED ROOMS | 1 |
| LOW ENERGY LIGHTING | 100 |
| NUMBER OPEN FIREPLACES | — |
| HOTWATER DESCRIPTION | Electric immersion, off-peak |
| HOT WATER ENERGY EFF | Average |
| 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 | Very Poor |
| WINDOWS ENV EFF | Very Poor |
| WALLS DESCRIPTION | Sandstone, 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 | Poor |
| MAINHEAT ENV EFF | Very Good |
| MAINHEATCONT DESCRIPTION | Appliance thermostats |
| MAINHEATC ENERGY EFF | Good |
| MAINHEATC ENV EFF | Good |
| LIGHTING DESCRIPTION | Good lighting efficiency |
| LIGHTING ENERGY EFF | Good |
| LIGHTING ENV EFF | Good |
| MAIN FUEL | electricity (not community) |
| WIND TURBINE COUNT | 0 |
| HEAT LOSS CORRIDOR | unheated corridor |
| UNHEATED CORRIDOR LENGTH | 5.9 |
| FLOOR HEIGHT | 2.54 |
| PHOTO SUPPLY | 0 |
| SOLAR WATER HEATING FLAG | N |
| MECHANICAL VENTILATION | natural |
| ADDRESS | Apartment 306, Castle Buildings, 32 Castle Street |
| LOCAL AUTHORITY LABEL | Swansea |
| CONSTITUENCY LABEL | Swansea West |
| POSTTOWN | SWANSEA |
| CONSTRUCTION AGE BAND | England and Wales: before 1900 |
| LODGEMENT DATETIME | 2026-04-20 08:23:45 |
| TENURE | rented (private) |
| FIXED LIGHTING OUTLETS COUNT | 7 |
| LOW ENERGY FIXED LIGHT COUNT | 7 |
| UPRN | 10010045587 |
| UPRN SOURCE | Energy Assessor |
| REPORT TYPE | 2 |
| Source file | certificates-2026.csv |
| COUNTRY | Wales |
| REGION | W99999999 |
| Address display | — |
| Nation | ew |