Energy Performance Certificate
21 Martlesham Walk, NW9 5BF
Energy rating
Current: 81 B | Potential: 81 B
Environmental impact (CO₂)
Current: 92
| Potential: 92
| Field | Value |
|---|---|
| LMK KEY | 2135-3122-8509-0339-7202 |
| ADDRESS1 | 21 Martlesham Walk |
| ADDRESS2 | — |
| ADDRESS3 | — |
| POSTCODE | NW9 5BF |
| BUILDING REFERENCE NUMBER | — |
| CURRENT ENERGY RATING | B |
| POTENTIAL ENERGY RATING | B |
| CURRENT ENERGY EFFICIENCY | 81 |
| POTENTIAL ENERGY EFFICIENCY | 81 |
| PROPERTY TYPE | Flat |
| BUILT FORM | Not Recorded |
| INSPECTION DATE | 2025-12-01 |
| LOCAL AUTHORITY | E09000003 |
| CONSTITUENCY | E14001279 |
| COUNTY | — |
| LODGEMENT DATE | 2025-12-02 |
| TRANSACTION TYPE | Rental |
| ENVIRONMENT IMPACT CURRENT | 92 |
| ENVIRONMENT IMPACT POTENTIAL | 92 |
| ENERGY CONSUMPTION CURRENT | 123 |
| ENERGY CONSUMPTION POTENTIAL | 123 |
| CO2 EMISSIONS CURRENT | 0.4 |
| CO2 EMISS CURR PER FLOOR AREA | 11 |
| CO2 EMISSIONS POTENTIAL | 0.4 |
| LIGHTING COST CURRENT | 39 |
| LIGHTING COST POTENTIAL | 39 |
| HEATING COST CURRENT | 266 |
| HEATING COST POTENTIAL | 266 |
| HOT WATER COST CURRENT | 315 |
| HOT WATER COST POTENTIAL | 315 |
| TOTAL FLOOR AREA | 41 |
| ENERGY TARIFF | dual |
| MAINS GAS FLAG | Y |
| FLOOR LEVEL | 2 |
| FLAT TOP STOREY | N |
| FLAT STOREY COUNT | 1 |
| MAIN HEATING CONTROLS | Automatic charge control |
| 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 | 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 | Poor |
| WINDOWS ENV EFF | Poor |
| WALLS DESCRIPTION | Cavity wall, as built, insulated (assumed) |
| WALLS ENERGY EFF | Good |
| WALLS ENV EFF | Good |
| SECONDHEAT DESCRIPTION | Portable electric heaters (assumed) |
| 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 | Electric storage heaters |
| MAINHEAT ENERGY EFF | Average |
| MAINHEAT ENV EFF | Very Good |
| MAINHEATCONT DESCRIPTION | Automatic charge control |
| MAINHEATC ENERGY EFF | Average |
| MAINHEATC ENV EFF | Average |
| 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 | heated corridor |
| UNHEATED CORRIDOR LENGTH | — |
| FLOOR HEIGHT | 2.4 |
| PHOTO SUPPLY | 0 |
| SOLAR WATER HEATING FLAG | N |
| MECHANICAL VENTILATION | natural |
| ADDRESS | 21 Martlesham Walk |
| LOCAL AUTHORITY LABEL | Barnet |
| CONSTITUENCY LABEL | Hendon |
| POSTTOWN | LONDON |
| CONSTRUCTION AGE BAND | England and Wales: 2007-2011 |
| LODGEMENT DATETIME | 2025-12-02 20:13:58 |
| TENURE | rented (private) |
| FIXED LIGHTING OUTLETS COUNT | 6 |
| LOW ENERGY FIXED LIGHT COUNT | 6 |
| UPRN | 200198609 |
| UPRN SOURCE | Energy Assessor |
| REPORT TYPE | 2 |
| Source file | certificates-2025.csv |
| COUNTRY | England |
| REGION | E12000007 |
| Address display | — |
| Nation | ew |