Energy Performance Certificate
01Apartment 21 Napier, 1, Napier Street, S11 8HA
Energy rating
Current: 55 D | Potential: 55 D
Environmental impact (CO₂)
Current: 87
| Potential: 87
| Field | Value |
|---|---|
| LMK KEY | 7800-3142-0522-6598-3963 |
| ADDRESS1 | 01Apartment 21 Napier |
| ADDRESS2 | 1, Napier Street |
| ADDRESS3 | — |
| POSTCODE | S11 8HA |
| BUILDING REFERENCE NUMBER | — |
| CURRENT ENERGY RATING | D |
| POTENTIAL ENERGY RATING | D |
| CURRENT ENERGY EFFICIENCY | 55 |
| POTENTIAL ENERGY EFFICIENCY | 55 |
| PROPERTY TYPE | Flat |
| BUILT FORM | Not Recorded |
| INSPECTION DATE | 2026-01-14 |
| LOCAL AUTHORITY | E08000039 |
| CONSTITUENCY | E14001467 |
| COUNTY | — |
| LODGEMENT DATE | 2026-01-20 |
| TRANSACTION TYPE | Rental |
| ENVIRONMENT IMPACT CURRENT | 87 |
| ENVIRONMENT IMPACT POTENTIAL | 87 |
| ENERGY CONSUMPTION CURRENT | 143 |
| ENERGY CONSUMPTION POTENTIAL | 143 |
| CO2 EMISSIONS CURRENT | 1.4 |
| CO2 EMISS CURR PER FLOOR AREA | 14 |
| CO2 EMISSIONS POTENTIAL | 1.4 |
| LIGHTING COST CURRENT | 66 |
| LIGHTING COST POTENTIAL | 66 |
| HEATING COST CURRENT | 2064 |
| HEATING COST POTENTIAL | 2064 |
| HOT WATER COST CURRENT | 446 |
| HOT WATER COST POTENTIAL | 446 |
| TOTAL FLOOR AREA | 100 |
| ENERGY TARIFF | dual |
| MAINS GAS FLAG | N |
| FLOOR LEVEL | 3 |
| FLAT TOP STOREY | Y |
| FLAT STOREY COUNT | 1 |
| MAIN HEATING CONTROLS | Time and temperature zone control |
| 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 | — |
| HOTWATER DESCRIPTION | Electric immersion, off-peak |
| HOT WATER ENERGY EFF | Good |
| 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 | Average |
| WINDOWS ENV EFF | Average |
| WALLS DESCRIPTION | System built, as built, insulated (assumed) |
| WALLS ENERGY EFF | Good |
| WALLS ENV EFF | 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 | Electric underfloor heating |
| MAINHEAT ENERGY EFF | Very Poor |
| MAINHEAT ENV EFF | Very Good |
| MAINHEATCONT DESCRIPTION | Time and temperature zone control |
| MAINHEATC ENERGY EFF | Very Good |
| MAINHEATC ENV EFF | Very 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 | no corridor |
| UNHEATED CORRIDOR LENGTH | — |
| FLOOR HEIGHT | 2.45 |
| PHOTO SUPPLY | 0 |
| SOLAR WATER HEATING FLAG | N |
| MECHANICAL VENTILATION | natural |
| ADDRESS | 01Apartment 21 Napier, 1, Napier Street |
| LOCAL AUTHORITY LABEL | Sheffield |
| CONSTITUENCY LABEL | Sheffield Central |
| POSTTOWN | SHEFFIELD |
| CONSTRUCTION AGE BAND | England and Wales: 2003-2006 |
| LODGEMENT DATETIME | 2026-01-20 10:06:17 |
| TENURE | rented (private) |
| FIXED LIGHTING OUTLETS COUNT | 35 |
| LOW ENERGY FIXED LIGHT COUNT | 35 |
| UPRN | 10013646637 |
| UPRN SOURCE | Address Matched |
| REPORT TYPE | 2 |
| Source file | certificates-2026.csv |
| COUNTRY | England |
| REGION | E12000003 |
| Address display | — |
| Nation | ew |