Energy Performance Certificate
Flat 1, 25 Castilian Street, NN1 1JS
Energy rating
Current: 53 E | Potential: 74 C
Environmental impact (CO₂)
Current: 57
| Potential: 56
| Field | Value |
|---|---|
| LMK KEY | 8335-1922-9400-0207-6292 |
| ADDRESS1 | Flat 1 |
| ADDRESS2 | 25 Castilian Street |
| ADDRESS3 | — |
| POSTCODE | NN1 1JS |
| BUILDING REFERENCE NUMBER | — |
| CURRENT ENERGY RATING | E |
| POTENTIAL ENERGY RATING | C |
| CURRENT ENERGY EFFICIENCY | 53 |
| POTENTIAL ENERGY EFFICIENCY | 74 |
| PROPERTY TYPE | Flat |
| BUILT FORM | Semi-Detached |
| INSPECTION DATE | 2025-02-13 |
| LOCAL AUTHORITY | E06000062 |
| CONSTITUENCY | E14001406 |
| COUNTY | — |
| LODGEMENT DATE | 2025-06-03 |
| TRANSACTION TYPE | Rental |
| ENVIRONMENT IMPACT CURRENT | 57 |
| ENVIRONMENT IMPACT POTENTIAL | 56 |
| ENERGY CONSUMPTION CURRENT | 304 |
| ENERGY CONSUMPTION POTENTIAL | 318 |
| CO2 EMISSIONS CURRENT | 3.5 |
| CO2 EMISS CURR PER FLOOR AREA | 51 |
| CO2 EMISSIONS POTENTIAL | 3.7 |
| LIGHTING COST CURRENT | 78 |
| LIGHTING COST POTENTIAL | 88 |
| HEATING COST CURRENT | 1123 |
| HEATING COST POTENTIAL | 663 |
| HOT WATER COST CURRENT | 438 |
| HOT WATER COST POTENTIAL | 258 |
| TOTAL FLOOR AREA | 68 |
| ENERGY TARIFF | Single |
| MAINS GAS FLAG | N |
| FLOOR LEVEL | 3 |
| FLAT TOP STOREY | Y |
| FLAT STOREY COUNT | 2 |
| MAIN HEATING CONTROLS | Programmer and appliance thermostats |
| MULTI GLAZE PROPORTION | 100 |
| GLAZED TYPE | secondary glazing |
| GLAZED AREA | More Than Typical |
| EXTENSION COUNT | 1 |
| 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 | Poor |
| FLOOR DESCRIPTION | (other premises below) |
| FLOOR ENERGY EFF | N/A |
| FLOOR ENV EFF | N/A |
| WINDOWS DESCRIPTION | Full secondary glazing |
| WINDOWS ENERGY EFF | Good |
| WINDOWS ENV EFF | Good |
| WALLS DESCRIPTION | Solid brick, with internal insulation |
| WALLS ENERGY EFF | Very Good |
| WALLS ENV EFF | Very Good |
| SECONDHEAT DESCRIPTION | None |
| SHEATING ENERGY EFF | N/A |
| SHEATING ENV EFF | N/A |
| ROOF DESCRIPTION | Flat, insulated |
| ROOF ENERGY EFF | Good |
| ROOF ENV EFF | Good |
| MAINHEAT DESCRIPTION | Room heaters, electric |
| MAINHEAT ENERGY EFF | Very Poor |
| MAINHEAT ENV EFF | Poor |
| MAINHEATCONT DESCRIPTION | Programmer and appliance thermostats |
| MAINHEATC ENERGY EFF | Good |
| MAINHEATC ENV EFF | Good |
| LIGHTING DESCRIPTION | Low energy lighting in all fixed outlets |
| 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 | 11.71 |
| FLOOR HEIGHT | 2.95 |
| PHOTO SUPPLY | 0 |
| SOLAR WATER HEATING FLAG | N |
| MECHANICAL VENTILATION | natural |
| ADDRESS | Flat 1, 25 Castilian Street |
| LOCAL AUTHORITY LABEL | West Northamptonshire |
| CONSTITUENCY LABEL | Northampton North |
| POSTTOWN | NORTHAMPTON |
| CONSTRUCTION AGE BAND | England and Wales: 2012 onwards |
| LODGEMENT DATETIME | 2025-06-03 06:36:56 |
| TENURE | rented (private) |
| FIXED LIGHTING OUTLETS COUNT | 19 |
| LOW ENERGY FIXED LIGHT COUNT | 19 |
| UPRN | 15127460 |
| UPRN SOURCE | Energy Assessor |
| REPORT TYPE | 2 |
| Source file | certificates-2025.csv |
| COUNTRY | England |
| REGION | E12000004 |
| Address display | — |
| Nation | ew |