Energy Performance Certificate

Flat 20, 15-23 Church Street, SL1 1HZ

EPC Report

Energy rating

Current: 72 C | Potential: 72 C
Current Potential A 92–100 B 81–91 C 69–80 D 55–68 E 39–54 F 21–38 G 1–20 72 C Current: 72 C 72 C Potential: 72 C

Environmental impact (CO₂)

Current: 95 | Potential: 95
Current Potential A 92–100 B 81–91 C 69–80 D 55–68 E 39–54 F 21–38 G 1–20 95 Current: 95 95 Potential: 95
Field Value
LMK KEY 9111-3910-3309-5535-7204
ADDRESS1 Flat 20
ADDRESS2 15-23 Church Street
ADDRESS3
POSTCODE SL1 1HZ
BUILDING REFERENCE NUMBER
CURRENT ENERGY RATING C
POTENTIAL ENERGY RATING C
CURRENT ENERGY EFFICIENCY 72
POTENTIAL ENERGY EFFICIENCY 72
PROPERTY TYPE Flat
BUILT FORM Semi-Detached
INSPECTION DATE 2025-11-19
LOCAL AUTHORITY E06000039
CONSTITUENCY E14001477
COUNTY
LODGEMENT DATE 2025-11-19
TRANSACTION TYPE New dwelling
ENVIRONMENT IMPACT CURRENT 95
ENVIRONMENT IMPACT POTENTIAL 95
ENERGY CONSUMPTION CURRENT 91
ENERGY CONSUMPTION POTENTIAL 91
CO2 EMISSIONS CURRENT 0.3
CO2 EMISS CURR PER FLOOR AREA 8.5
CO2 EMISSIONS POTENTIAL 0.3
LIGHTING COST CURRENT 31
LIGHTING COST POTENTIAL 31
HEATING COST CURRENT 136
HEATING COST POTENTIAL 136
HOT WATER COST CURRENT 511
HOT WATER COST POTENTIAL 511
TOTAL FLOOR AREA 38
ENERGY TARIFF standard tariff
MAINS GAS FLAG
FLOOR LEVEL 2
FLAT TOP STOREY N
FLAT STOREY COUNT 1
MAIN HEATING CONTROLS Programmer and appliance thermostats
MULTI GLAZE PROPORTION 100
GLAZED TYPE
GLAZED AREA
EXTENSION COUNT
NUMBER HABITABLE ROOMS
NUMBER HEATED ROOMS
LOW ENERGY LIGHTING 100
NUMBER OPEN FIREPLACES 0
HOTWATER DESCRIPTION Electric immersion, standard tariff
HOT WATER ENERGY EFF Very Poor
HOT WATER ENV EFF Very Good
FLOOR DESCRIPTION (other premises below)
FLOOR ENERGY EFF N/A
FLOOR ENV EFF N/A
WINDOWS DESCRIPTION High performance glazing
WINDOWS ENERGY EFF Very Good
WINDOWS ENV EFF Very Good
WALLS DESCRIPTION Average thermal transmittance 0.17 W/m²K
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 (other premises above)
ROOF ENERGY EFF N/A
ROOF ENV EFF N/A
MAINHEAT DESCRIPTION Room heaters, electric
MAINHEAT ENERGY EFF Very Poor
MAINHEAT ENV EFF Very Good
MAINHEATCONT DESCRIPTION Programmer and appliance thermostats
MAINHEATC ENERGY EFF Good
MAINHEATC ENV EFF Good
LIGHTING DESCRIPTION Good lighting efficiency
LIGHTING ENERGY EFF Good
LIGHTING ENV EFF Good
MAIN FUEL Electricity: electricity, unspecified tariff
WIND TURBINE COUNT
HEAT LOSS CORRIDOR
UNHEATED CORRIDOR LENGTH
FLOOR HEIGHT 2.5
PHOTO SUPPLY
SOLAR WATER HEATING FLAG
MECHANICAL VENTILATION
ADDRESS Flat 20, 15-23 Church Street
LOCAL AUTHORITY LABEL
CONSTITUENCY LABEL
POSTTOWN SLOUGH
CONSTRUCTION AGE BAND 2024
LODGEMENT DATETIME 2025-11-19 00:12:12
TENURE unknown
FIXED LIGHTING OUTLETS COUNT 13
LOW ENERGY FIXED LIGHT COUNT 13
UPRN 10094479955
UPRN SOURCE Address Matched
REPORT TYPE 3
Source file certificates-2025.csv
COUNTRY England
REGION E12000008
Address display
Nation ew