Energy Performance Certificate
Flat 4, Knightstone House, Portland Street, BS2 8HL
Energy rating
Current: 63 D | Potential: 70 C
Environmental impact (CO₂)
Current: 59
| Potential: 70
| Field | Value |
|---|---|
| LMK KEY | 4035-7929-6509-0446-6226 |
| ADDRESS1 | Flat 4 |
| ADDRESS2 | Knightstone House |
| ADDRESS3 | Portland Street |
| POSTCODE | BS2 8HL |
| BUILDING REFERENCE NUMBER | — |
| CURRENT ENERGY RATING | D |
| POTENTIAL ENERGY RATING | C |
| CURRENT ENERGY EFFICIENCY | 63 |
| POTENTIAL ENERGY EFFICIENCY | 70 |
| PROPERTY TYPE | Flat |
| BUILT FORM | Not Recorded |
| INSPECTION DATE | 2025-11-26 |
| LOCAL AUTHORITY | E06000023 |
| CONSTITUENCY | E14001131 |
| COUNTY | — |
| LODGEMENT DATE | 2025-11-27 |
| TRANSACTION TYPE | None of the above |
| ENVIRONMENT IMPACT CURRENT | 59 |
| ENVIRONMENT IMPACT POTENTIAL | 70 |
| ENERGY CONSUMPTION CURRENT | 278 |
| ENERGY CONSUMPTION POTENTIAL | 205 |
| CO2 EMISSIONS CURRENT | 2.7 |
| CO2 EMISS CURR PER FLOOR AREA | 51 |
| CO2 EMISSIONS POTENTIAL | 2.0 |
| LIGHTING COST CURRENT | 44 |
| LIGHTING COST POTENTIAL | 44 |
| HEATING COST CURRENT | 556 |
| HEATING COST POTENTIAL | 379 |
| HOT WATER COST CURRENT | 206 |
| HOT WATER COST POTENTIAL | 206 |
| TOTAL FLOOR AREA | 52 |
| ENERGY TARIFF | Single |
| MAINS GAS FLAG | Y |
| FLOOR LEVEL | 1 |
| FLAT TOP STOREY | N |
| FLAT STOREY COUNT | 1 |
| MAIN HEATING CONTROLS | Flat rate charging, TRVs |
| MULTI GLAZE PROPORTION | 100 |
| GLAZED TYPE | — |
| GLAZED AREA | — |
| EXTENSION COUNT | 0 |
| NUMBER HABITABLE ROOMS | 2 |
| NUMBER HEATED ROOMS | 2 |
| LOW ENERGY LIGHTING | 100 |
| NUMBER OPEN FIREPLACES | — |
| HOTWATER DESCRIPTION | Community scheme |
| HOT WATER ENERGY EFF | Average |
| HOT WATER ENV EFF | Average |
| FLOOR DESCRIPTION | Solid, no insulation (assumed) |
| 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 | Cavity wall, as built, partial insulation (assumed) |
| WALLS ENERGY EFF | Average |
| WALLS ENV EFF | Average |
| 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 | Community scheme |
| MAINHEAT ENERGY EFF | Average |
| MAINHEAT ENV EFF | Average |
| MAINHEATCONT DESCRIPTION | Flat rate charging, TRVs |
| MAINHEATC ENERGY EFF | Average |
| MAINHEATC ENV EFF | Average |
| LIGHTING DESCRIPTION | Good lighting efficiency |
| LIGHTING ENERGY EFF | Good |
| LIGHTING ENV EFF | Good |
| MAIN FUEL | mains gas (community) |
| WIND TURBINE COUNT | 0 |
| HEAT LOSS CORRIDOR | heated corridor |
| UNHEATED CORRIDOR LENGTH | — |
| FLOOR HEIGHT | 2.2 |
| PHOTO SUPPLY | 0 |
| SOLAR WATER HEATING FLAG | N |
| MECHANICAL VENTILATION | natural |
| ADDRESS | Flat 4, Knightstone House, Portland Street |
| LOCAL AUTHORITY LABEL | Bristol, City of |
| CONSTITUENCY LABEL | Bristol Central |
| POSTTOWN | BRISTOL |
| CONSTRUCTION AGE BAND | England and Wales: 1976-1982 |
| LODGEMENT DATETIME | 2025-11-27 07:19:38 |
| TENURE | rented (social) |
| FIXED LIGHTING OUTLETS COUNT | 6 |
| LOW ENERGY FIXED LIGHT COUNT | 6 |
| UPRN | 289291 |
| UPRN SOURCE | Energy Assessor |
| REPORT TYPE | 2 |
| Source file | certificates-2025.csv |
| COUNTRY | England |
| REGION | E12000009 |
| Address display | — |
| Nation | ew |