Energy Performance Certificate

17 Checkline House 186-192, Darkes Lane, EN6 1AF

EPC Report

Energy rating

Current: 83 B | Potential: 83 B
Current Potential A 92–100 B 81–91 C 69–80 D 55–68 E 39–54 F 21–38 G 1–20 83 B Current: 83 B 83 B Potential: 83 B

Environmental impact (CO₂)

Current: 88 | Potential: 88
Current Potential A 92–100 B 81–91 C 69–80 D 55–68 E 39–54 F 21–38 G 1–20 88 Current: 88 88 Potential: 88
Field Value
LMK KEY 2011-9397-3060-8303-8191
ADDRESS1 17 Checkline House 186-192
ADDRESS2 Darkes Lane
ADDRESS3
POSTCODE EN6 1AF
BUILDING REFERENCE NUMBER
CURRENT ENERGY RATING B
POTENTIAL ENERGY RATING B
CURRENT ENERGY EFFICIENCY 83
POTENTIAL ENERGY EFFICIENCY 83
PROPERTY TYPE Flat
BUILT FORM Semi-Detached
INSPECTION DATE 2026-03-18
LOCAL AUTHORITY E07000098
CONSTITUENCY E14001284
COUNTY
LODGEMENT DATE 2026-03-18
TRANSACTION TYPE Non-marketed sale
ENVIRONMENT IMPACT CURRENT 88
ENVIRONMENT IMPACT POTENTIAL 88
ENERGY CONSUMPTION CURRENT 87
ENERGY CONSUMPTION POTENTIAL 87
CO2 EMISSIONS CURRENT 0.9
CO2 EMISS CURR PER FLOOR AREA 15
CO2 EMISSIONS POTENTIAL 0.9
LIGHTING COST CURRENT 49
LIGHTING COST POTENTIAL 49
HEATING COST CURRENT 275
HEATING COST POTENTIAL 275
HOT WATER COST CURRENT 152
HOT WATER COST POTENTIAL 152
TOTAL FLOOR AREA 61
ENERGY TARIFF Single
MAINS GAS FLAG Y
FLOOR LEVEL 2
FLAT TOP STOREY N
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
HOT WATER ENERGY EFF Good
HOT WATER ENV EFF 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 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 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 Good lighting efficiency
LIGHTING ENERGY EFF Good
LIGHTING ENV EFF Good
MAIN FUEL mains gas (not community)
WIND TURBINE COUNT 0
HEAT LOSS CORRIDOR unheated corridor
UNHEATED CORRIDOR LENGTH 9.7
FLOOR HEIGHT 2.4
PHOTO SUPPLY 0
SOLAR WATER HEATING FLAG N
MECHANICAL VENTILATION natural
ADDRESS 17 Checkline House 186-192, Darkes Lane
LOCAL AUTHORITY LABEL Hertsmere
CONSTITUENCY LABEL Hertsmere
POSTTOWN POTTERS BAR
CONSTRUCTION AGE BAND England and Wales: 1996-2002
LODGEMENT DATETIME 2026-03-18 21:37:40
TENURE rented (private)
FIXED LIGHTING OUTLETS COUNT 6
LOW ENERGY FIXED LIGHT COUNT 6
UPRN 10013913383
UPRN SOURCE Energy Assessor
REPORT TYPE 2
Source file certificates-2026.csv
COUNTRY England
REGION E12000006
Address display
Nation ew