Energy Performance Certificate
Silver Birch, 39a Downs Road, South Wonston, SO21 3EW
Energy rating
Current: 73 C | Potential: 88 B
Environmental impact (CO₂)
Current: 64
| Potential: 84
| Field | Value |
|---|---|
| LMK KEY | 4800-0465-0022-8529-3963 |
| ADDRESS1 | Silver Birch |
| ADDRESS2 | 39a Downs Road |
| ADDRESS3 | South Wonston |
| POSTCODE | SO21 3EW |
| BUILDING REFERENCE NUMBER | — |
| CURRENT ENERGY RATING | C |
| POTENTIAL ENERGY RATING | B |
| CURRENT ENERGY EFFICIENCY | 73 |
| POTENTIAL ENERGY EFFICIENCY | 88 |
| PROPERTY TYPE | House |
| BUILT FORM | Detached |
| INSPECTION DATE | 2026-01-26 |
| LOCAL AUTHORITY | E07000094 |
| CONSTITUENCY | E14001587 |
| COUNTY | — |
| LODGEMENT DATE | 2026-01-26 |
| TRANSACTION TYPE | Marketed sale |
| ENVIRONMENT IMPACT CURRENT | 64 |
| ENVIRONMENT IMPACT POTENTIAL | 84 |
| ENERGY CONSUMPTION CURRENT | 189 |
| ENERGY CONSUMPTION POTENTIAL | 71 |
| CO2 EMISSIONS CURRENT | 4.2 |
| CO2 EMISS CURR PER FLOOR AREA | 35 |
| CO2 EMISSIONS POTENTIAL | 1.6 |
| LIGHTING COST CURRENT | 64 |
| LIGHTING COST POTENTIAL | 64 |
| HEATING COST CURRENT | 349 |
| HEATING COST POTENTIAL | 555 |
| HOT WATER COST CURRENT | 1204 |
| HOT WATER COST POTENTIAL | 195 |
| TOTAL FLOOR AREA | 120 |
| ENERGY TARIFF | Single |
| MAINS GAS FLAG | Y |
| FLOOR LEVEL | — |
| FLAT TOP STOREY | N |
| 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 | 5 |
| NUMBER HEATED ROOMS | 5 |
| LOW ENERGY LIGHTING | 100 |
| NUMBER OPEN FIREPLACES | — |
| HOTWATER DESCRIPTION | From main system |
| HOT WATER ENERGY EFF | Good |
| HOT WATER ENV EFF | Good |
| FLOOR DESCRIPTION | Solid, insulated (assumed) |
| 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, 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 | Roof room(s), insulated (assumed) |
| ROOF ENERGY EFF | Good |
| ROOF ENV EFF | Good |
| MAINHEAT DESCRIPTION | Boiler and underfloor heating, mains gas, Boiler and radiators, mains gas |
| MAINHEAT ENERGY EFF | Good |
| MAINHEAT ENV EFF | 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 | mains gas (not community) |
| WIND TURBINE COUNT | 0 |
| HEAT LOSS CORRIDOR | — |
| UNHEATED CORRIDOR LENGTH | — |
| FLOOR HEIGHT | 2.27 |
| PHOTO SUPPLY | 25 |
| SOLAR WATER HEATING FLAG | N |
| MECHANICAL VENTILATION | natural |
| ADDRESS | Silver Birch, 39a Downs Road, South Wonston |
| LOCAL AUTHORITY LABEL | Winchester |
| CONSTITUENCY LABEL | Winchester |
| POSTTOWN | WINCHESTER |
| CONSTRUCTION AGE BAND | England and Wales: 2012-2021 |
| LODGEMENT DATETIME | 2026-01-26 13:21:48 |
| TENURE | owner-occupied |
| FIXED LIGHTING OUTLETS COUNT | 28 |
| LOW ENERGY FIXED LIGHT COUNT | 28 |
| UPRN | 10090847706 |
| UPRN SOURCE | Address Matched |
| REPORT TYPE | 2 |
| Source file | certificates-2026.csv |
| COUNTRY | England |
| REGION | E12000008 |
| Address display | — |
| Nation | ew |