Energy Performance Certificate
129 Dunnside, CM1 1BY
Energy rating
Current: 77 C | Potential: 77 C
Environmental impact (CO₂)
Current: 82
| Potential: 83
| Field | Value |
|---|---|
| LMK KEY | 2753-0045-9369-3603-6101 |
| ADDRESS1 | 129 Dunnside |
| ADDRESS2 | — |
| ADDRESS3 | — |
| POSTCODE | CM1 1BY |
| BUILDING REFERENCE NUMBER | — |
| CURRENT ENERGY RATING | C |
| POTENTIAL ENERGY RATING | C |
| CURRENT ENERGY EFFICIENCY | 77 |
| POTENTIAL ENERGY EFFICIENCY | 77 |
| PROPERTY TYPE | Flat |
| BUILT FORM | End-Terrace |
| INSPECTION DATE | 2026-05-06 |
| LOCAL AUTHORITY | E07000070 |
| CONSTITUENCY | E14001159 |
| COUNTY | — |
| LODGEMENT DATE | 2026-05-08 |
| TRANSACTION TYPE | Non-marketed sale |
| ENVIRONMENT IMPACT CURRENT | 82 |
| ENVIRONMENT IMPACT POTENTIAL | 83 |
| ENERGY CONSUMPTION CURRENT | 146 |
| ENERGY CONSUMPTION POTENTIAL | 141 |
| CO2 EMISSIONS CURRENT | 1.1 |
| CO2 EMISS CURR PER FLOOR AREA | 26 |
| CO2 EMISSIONS POTENTIAL | 1.1 |
| LIGHTING COST CURRENT | 31 |
| LIGHTING COST POTENTIAL | 31 |
| HEATING COST CURRENT | 292 |
| HEATING COST POTENTIAL | 279 |
| HOT WATER COST CURRENT | 239 |
| HOT WATER COST POTENTIAL | 240 |
| TOTAL FLOOR AREA | 43 |
| ENERGY TARIFF | Single |
| MAINS GAS FLAG | Y |
| FLOOR LEVEL | 3 |
| FLAT TOP STOREY | Y |
| FLAT STOREY COUNT | 1 |
| MAIN HEATING CONTROLS | Programmer, room thermostat and 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 | 0 |
| HOTWATER DESCRIPTION | From main system, no cylinder thermostat |
| HOT WATER ENERGY EFF | Average |
| HOT WATER ENV EFF | Average |
| 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 | Cavity wall, filled cavity and 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 | Pitched, insulated (assumed) |
| ROOF ENERGY EFF | Very Good |
| ROOF ENV EFF | Very Good |
| MAINHEAT DESCRIPTION | Boiler and radiators, mains gas |
| MAINHEAT ENERGY EFF | Good |
| MAINHEAT ENV EFF | Good |
| MAINHEATCONT DESCRIPTION | Programmer, room thermostat and TRVs |
| MAINHEATC ENERGY EFF | Good |
| MAINHEATC ENV EFF | Good |
| LIGHTING DESCRIPTION | Excellent lighting efficiency |
| LIGHTING ENERGY EFF | Very Good |
| LIGHTING ENV EFF | Very Good |
| MAIN FUEL | mains gas (not community) |
| WIND TURBINE COUNT | 0 |
| HEAT LOSS CORRIDOR | unheated corridor |
| UNHEATED CORRIDOR LENGTH | 9.33 |
| FLOOR HEIGHT | 2.24 |
| PHOTO SUPPLY | 0 |
| SOLAR WATER HEATING FLAG | N |
| MECHANICAL VENTILATION | natural |
| ADDRESS | 129 Dunnside |
| LOCAL AUTHORITY LABEL | Chelmsford |
| CONSTITUENCY LABEL | Chelmsford |
| POSTTOWN | Chelmsford |
| CONSTRUCTION AGE BAND | England and Wales: 2012-2021 |
| LODGEMENT DATETIME | 2026-05-08 09:41:57 |
| TENURE | owner-occupied |
| FIXED LIGHTING OUTLETS COUNT | 21 |
| LOW ENERGY FIXED LIGHT COUNT | 21 |
| UPRN | — |
| UPRN SOURCE | — |
| REPORT TYPE | 2 |
| Source file | certificates-2026.csv |
| COUNTRY | England |
| REGION | E12000006 |
| Address display | — |
| Nation | ew |