Energy Performance Certificate

23 The Park, Harwell, OX11 0HB

EPC Report

Energy rating

Current: 70 C | Potential: 80 C
Current Potential A 92–100 B 81–91 C 69–80 D 55–68 E 39–54 F 21–38 G 1–20 70 C Current: 70 C 80 C Potential: 80 C

Environmental impact (CO₂)

Current: 92 | Potential: 94
Current Potential A 92–100 B 81–91 C 69–80 D 55–68 E 39–54 F 21–38 G 1–20 92 Current: 92 94 Potential: 94
Field Value
LMK KEY 2053-4870-5128-0436-6136
ADDRESS1 23 The Park
ADDRESS2 Harwell
ADDRESS3
POSTCODE OX11 0HB
BUILDING REFERENCE NUMBER
CURRENT ENERGY RATING C
POTENTIAL ENERGY RATING C
CURRENT ENERGY EFFICIENCY 70
POTENTIAL ENERGY EFFICIENCY 80
PROPERTY TYPE House
BUILT FORM Semi-Detached
INSPECTION DATE 2026-02-12
LOCAL AUTHORITY E07000180
CONSTITUENCY E14001197
COUNTY
LODGEMENT DATE 2026-02-12
TRANSACTION TYPE Re-mortgaging
ENVIRONMENT IMPACT CURRENT 92
ENVIRONMENT IMPACT POTENTIAL 94
ENERGY CONSUMPTION CURRENT 82
ENERGY CONSUMPTION POTENTIAL 65
CO2 EMISSIONS CURRENT 0.7
CO2 EMISS CURR PER FLOOR AREA 8
CO2 EMISSIONS POTENTIAL 0.5
LIGHTING COST CURRENT 61
LIGHTING COST POTENTIAL 61
HEATING COST CURRENT 1432
HEATING COST POTENTIAL 1123
HOT WATER COST CURRENT 370
HOT WATER COST POTENTIAL 489
TOTAL FLOOR AREA 94
ENERGY TARIFF Single
MAINS GAS FLAG N
FLOOR LEVEL
FLAT TOP STOREY N
FLAT STOREY COUNT 2
MAIN HEATING CONTROLS Time and temperature zone control
MULTI GLAZE PROPORTION 100
GLAZED TYPE
GLAZED AREA
EXTENSION COUNT 1
NUMBER HABITABLE ROOMS 5
NUMBER HEATED ROOMS 5
LOW ENERGY LIGHTING 100
NUMBER OPEN FIREPLACES 0
HOTWATER DESCRIPTION From main system
HOT WATER ENERGY EFF Average
HOT WATER ENV EFF Very Good
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, filled cavity
WALLS ENERGY EFF Good
WALLS ENV EFF Good
SECONDHEAT DESCRIPTION None
SHEATING ENERGY EFF N/A
SHEATING ENV EFF N/A
ROOF DESCRIPTION Pitched, 300 mm loft insulation
ROOF ENERGY EFF Very Good
ROOF ENV EFF Very Good
MAINHEAT DESCRIPTION Air source heat pump, radiators, electric
MAINHEAT ENERGY EFF Average
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
UNHEATED CORRIDOR LENGTH
FLOOR HEIGHT 2.42
PHOTO SUPPLY
SOLAR WATER HEATING FLAG N
MECHANICAL VENTILATION mechanical extract, decentralised (MEV dc)
ADDRESS 23 The Park, Harwell
LOCAL AUTHORITY LABEL Vale of White Horse
CONSTITUENCY LABEL Didcot and Wantage
POSTTOWN DIDCOT
CONSTRUCTION AGE BAND England and Wales: 1950-1966
LODGEMENT DATETIME 2026-02-12 20:00:07
TENURE rented (social)
FIXED LIGHTING OUTLETS COUNT 15
LOW ENERGY FIXED LIGHT COUNT 15
UPRN 100120915362
UPRN SOURCE Energy Assessor
REPORT TYPE 2
Source file certificates-2026.csv
COUNTRY England
REGION E12000008
Address display
Nation ew