PROPERTY ENERGY EFFICIENCY CERTIFICATE DETAILS
Chiswick High Road, LONDON, W4 4HS
Introduction
Energy Performance Certificates (EPCs) are designed to tell you how efficient a building is and provides a rating between A (very efficient) and G which is inefficient. It helps to identify how costly it will be to light and heat a property and what the carbon dioxide emissions are likely to be.
An EPC needs to be provided as part of the process of selling or renting a house and should be availale as soon as the property is marketed. An EPC may only be produced by an approved domestic energy assessor and each certificate is valid for 10 years.
Additionally, an EPC will highlight potential efficiency improvements that could be made to the property, an estimated cost for implementation and the likely savings that can be made as a result. These costs and savings are for a typical household in that property and not specific to you or your family.
Certificates issued for Chiswick High Road, W4 4HS are shown below and the data are updated monthly for England and Wales and quarterly for properties in Scotland.
Data are provided by the Department for Levelling Up, Housing and Communities.
Energy Performance Certificates Generated for Chiswick High Road, LONDON, W4 4HS
Period Covered:
2008 - 31 January 2025
Address
Inspection Date
Current
Potential
Property Type
Built Form
Constructed
Address
341A CHISWICK HIGH ROAD
Date
13 Jul 2021
Current
Potential
64
80
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
13 Jul 2021
64
80
Total Floor Area
68 sq m
Current CO2 Emissions Level
3.1
Potential CO2 Emissions Level
1.3
CO2 per sq m per Year
45
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
341a Chiswick High Road
Date
9 Dec 2009
Current
Potential
57
66
Property Type
Maisonette
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
9 Dec 2009
57
66
Total Floor Area
61 sq m
Current CO2 Emissions Level
3.9
Potential CO2 Emissions Level
3.1
CO2 per sq m per Year
64
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
341b Chiswick High Road
Date
20 Aug 2015
Current
Potential
56
79
Property Type
Flat
Built Form
Mid-Terrace
Constructed
before 1900
Certificate History
20 Aug 2015
56
79
Total Floor Area
93 sq m
Current CO2 Emissions Level
4.9
Potential CO2 Emissions Level
1.9
CO2 per sq m per Year
52
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
Basement Flat, 345 Chiswick High Road
Date
16 May 2018
Current
Potential
44
77
Property Type
Flat
Built Form
End-Terrace
Constructed
1900-1929
Certificate History
16 May 2018
44
77
5 Oct 2009
34
34
Total Floor Area
60 sq m
Current CO2 Emissions Level
4.3
Potential CO2 Emissions Level
1.5
CO2 per sq m per Year
71
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
1
Address
First Floor Flat, 339 Chiswick High Road
Date
1 Feb 2019
Current
Potential
77
80
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
1 Feb 2019
77
80
15 Oct 2008
75
78
Total Floor Area
39 sq m
Current CO2 Emissions Level
1.1
Potential CO2 Emissions Level
0.9
CO2 per sq m per Year
28
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
First Floor Flat, 343 Chiswick High Road
Date
8 Feb 2018
Current
Potential
71
79
Property Type
Flat
Built Form
Mid-Terrace
Constructed
before 1900
Certificate History
8 Feb 2018
71
79
8 Nov 2016
54
73
22 Feb 2011
55
56
Total Floor Area
41 sq m
Current CO2 Emissions Level
1.5
Potential CO2 Emissions Level
0.9
CO2 per sq m per Year
36
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
First Floor Flat, 345 Chiswick High Road
Date
9 Oct 2022
Current
Potential
68
78
Property Type
Flat
Built Form
End-Terrace
Constructed
1900-1929
Certificate History
9 Oct 2022
68
78
Total Floor Area
38 sq m
Current CO2 Emissions Level
1.8
Potential CO2 Emissions Level
1.0
CO2 per sq m per Year
46
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
Flat 1, 329 Chiswick High Road
Date
20 Nov 2015
Current
Potential
80
80
Property Type
Flat
Built Form
End-Terrace
Constructed
INVALID!
Certificate History
20 Nov 2015
80
80
Total Floor Area
62 sq m
Current CO2 Emissions Level
1.2
Potential CO2 Emissions Level
1.2
CO2 per sq m per Year
19
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
Flat 1, 331-335
Date
3 Nov 2022
Current
Potential
79
79
Property Type
Flat
Built Form
Mid-Terrace
Constructed
2012 onwards
Certificate History
3 Nov 2022
79
79
21 Jun 2011
81
81
Total Floor Area
52 sq m
Current CO2 Emissions Level
1.1
Potential CO2 Emissions Level
1.1
CO2 per sq m per Year
21
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
Flat 1, 337 Chiswick High Road
Date
12 Oct 2009
Current
Potential
58
67
Property Type
Flat
Built Form
Mid-Terrace
Constructed
before 1900
Certificate History
12 Oct 2009
58
67
Total Floor Area
56 sq m
Current CO2 Emissions Level
3.7
Potential CO2 Emissions Level
2.9
CO2 per sq m per Year
66
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
FLAT 1, 337 CHISWICK HIGH ROAD
Date
1 Oct 2020
Current
Potential
65
74
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
1 Oct 2020
65
74
Total Floor Area
56 sq m
Current CO2 Emissions Level
2.4
Potential CO2 Emissions Level
1.6
CO2 per sq m per Year
43
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
1
Address
Flat 10, 331-335
Date
3 Nov 2022
Current
Potential
82
82
Property Type
Flat
Built Form
Mid-Terrace
Constructed
2012 onwards
Certificate History
3 Nov 2022
82
82
21 Jun 2011
84
84
Total Floor Area
55 sq m
Current CO2 Emissions Level
0.9
Potential CO2 Emissions Level
0.9
CO2 per sq m per Year
17
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
Flat 11, 331-335
Date
8 Nov 2022
Current
Potential
82
82
Property Type
Flat
Built Form
Mid-Terrace
Constructed
2012 onwards
Certificate History
8 Nov 2022
82
82
21 Jun 2011
83
83
Total Floor Area
53 sq m
Current CO2 Emissions Level
0.9
Potential CO2 Emissions Level
0.9
CO2 per sq m per Year
16
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
Flat 12, 331-335
Date
1 Dec 2022
Current
Potential
83
83
Property Type
Flat
Built Form
Mid-Terrace
Constructed
2012 onwards
Certificate History
1 Dec 2022
83
83
21 Jun 2011
84
84
Total Floor Area
51 sq m
Current CO2 Emissions Level
0.8
Potential CO2 Emissions Level
0.8
CO2 per sq m per Year
16
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
Flat 13, 331-335
Date
21 Jan 2023
Current
Potential
81
81
Property Type
Flat
Built Form
Mid-Terrace
Constructed
2003-2006
Certificate History
21 Jan 2023
81
81
21 Jun 2011
82
82
Total Floor Area
51 sq m
Current CO2 Emissions Level
0.9
Potential CO2 Emissions Level
0.9
CO2 per sq m per Year
19
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
Flat 14, 331-335, Chiswick High Road
Date
21 Jun 2011
Current
Potential
82
82
Property Type
Flat
Built Form
Enclosed Mid-Terrace
Constructed
N/A
Certificate History
21 Jun 2011
82
82
Total Floor Area
56 sq m
Current CO2 Emissions Level
1.0
Potential CO2 Emissions Level
1.0
CO2 per sq m per Year
18
Mains Gas Available
No
Habitable Rooms
0
Number of Extensions
0
Address
Flat 15, 331-335
Date
30 Jan 2023
Current
Potential
80
80
Property Type
Flat
Built Form
Semi-Detached
Constructed
2012 onwards
Certificate History
30 Jan 2023
80
80
21 Jun 2011
82
82
Total Floor Area
60 sq m
Current CO2 Emissions Level
1.2
Potential CO2 Emissions Level
1.2
CO2 per sq m per Year
20
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
Flat 16, 331-335, Chiswick High Road
Date
21 Jun 2011
Current
Potential
82
82
Property Type
Flat
Built Form
Enclosed Mid-Terrace
Constructed
N/A
Certificate History
21 Jun 2011
82
82
Total Floor Area
49 sq m
Current CO2 Emissions Level
0.9
Potential CO2 Emissions Level
0.9
CO2 per sq m per Year
18
Mains Gas Available
No
Habitable Rooms
0
Number of Extensions
0
Address
Flat 2, 329 Chiswick High Road
Date
20 Nov 2015
Current
Potential
80
80
Property Type
Flat
Built Form
Mid-Terrace
Constructed
INVALID!
Certificate History
20 Nov 2015
80
80
Total Floor Area
72 sq m
Current CO2 Emissions Level
1.3
Potential CO2 Emissions Level
1.3
CO2 per sq m per Year
19
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
1
Address
Flat 2, 331-335
Date
3 Nov 2022
Current
Potential
79
79
Property Type
Flat
Built Form
Mid-Terrace
Constructed
2012 onwards
Certificate History
3 Nov 2022
79
79
21 Jun 2011
82
82
Total Floor Area
49 sq m
Current CO2 Emissions Level
1.0
Potential CO2 Emissions Level
1.0
CO2 per sq m per Year
21
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
Flat 2, 337 Chiswick High Road
Date
26 Jan 2011
Current
Potential
57
68
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
26 Jan 2011
57
68
Total Floor Area
47 sq m
Current CO2 Emissions Level
3.4
Potential CO2 Emissions Level
3.0
CO2 per sq m per Year
71
Mains Gas Available
No
Habitable Rooms
3
Number of Extensions
0
Address
Flat 3, 329 Chiswick High Road
Date
20 Nov 2015
Current
Potential
77
81
Property Type
Flat
Built Form
End-Terrace
Constructed
1900-1929
Certificate History
20 Nov 2015
77
81
20 Nov 2015
82
82
20 Nov 2015
82
82
Total Floor Area
58 sq m
Current CO2 Emissions Level
1.5
Potential CO2 Emissions Level
1.1
CO2 per sq m per Year
26
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
Flat 3, 331-335
Date
21 Jan 2023
Current
Potential
81
81
Property Type
Flat
Built Form
Mid-Terrace
Constructed
2003-2006
Certificate History
21 Jan 2023
81
81
21 Jun 2011
81
81
Total Floor Area
52 sq m
Current CO2 Emissions Level
1.0
Potential CO2 Emissions Level
1.0
CO2 per sq m per Year
20
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
Flat 3, 337 Chiswick High Road
Date
6 Dec 2016
Current
Potential
73
81
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
6 Dec 2016
73
81
Total Floor Area
39 sq m
Current CO2 Emissions Level
1.4
Potential CO2 Emissions Level
0.8
CO2 per sq m per Year
34
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
Flat 4, 329 Chiswick High Road
Date
20 Nov 2015
Current
Potential
79
79
Property Type
Flat
Built Form
End-Terrace
Constructed
INVALID!
Certificate History
20 Nov 2015
79
79
Total Floor Area
42 sq m
Current CO2 Emissions Level
0.9
Potential CO2 Emissions Level
0.9
CO2 per sq m per Year
22
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
Flat 4, 331-335
Date
3 Nov 2022
Current
Potential
78
78
Property Type
Flat
Built Form
Mid-Terrace
Constructed
2012 onwards
Certificate History
3 Nov 2022
78
78
21 Jun 2011
81
81
Total Floor Area
45 sq m
Current CO2 Emissions Level
1.0
Potential CO2 Emissions Level
1.0
CO2 per sq m per Year
23
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
Flat 4, 337 Chiswick High Road
Date
25 Oct 2010
Current
Potential
31
43
Property Type
Flat
Built Form
Mid-Terrace
Constructed
before 1900
Certificate History
25 Oct 2010
31
43
Total Floor Area
40 sq m
Current CO2 Emissions Level
5.8
Potential CO2 Emissions Level
5.0
CO2 per sq m per Year
144
Mains Gas Available
No
Habitable Rooms
2
Number of Extensions
0
Address
Flat 5, 329 Chiswick High Road
Date
20 Nov 2015
Current
Potential
80
80
Property Type
Flat
Built Form
End-Terrace
Constructed
INVALID!
Certificate History
20 Nov 2015
80
80
Total Floor Area
52 sq m
Current CO2 Emissions Level
1.0
Potential CO2 Emissions Level
1.0
CO2 per sq m per Year
20
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
Flat 5, 331-335
Date
3 Nov 2022
Current
Potential
82
82
Property Type
Flat
Built Form
Mid-Terrace
Constructed
2012 onwards
Certificate History
3 Nov 2022
82
82
21 Jun 2011
83
83
Total Floor Area
52 sq m
Current CO2 Emissions Level
0.9
Potential CO2 Emissions Level
0.9
CO2 per sq m per Year
16
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
Flat 6, 331-335, Chiswick High Road
Date
21 Jun 2011
Current
Potential
84
84
Property Type
Flat
Built Form
Enclosed Mid-Terrace
Constructed
N/A
Certificate History
21 Jun 2011
84
84
Total Floor Area
58 sq m
Current CO2 Emissions Level
0.9
Potential CO2 Emissions Level
0.9
CO2 per sq m per Year
16
Mains Gas Available
No
Habitable Rooms
0
Number of Extensions
0
Address
Flat 7, 331-335
Date
3 Nov 2022
Current
Potential
82
82
Property Type
Flat
Built Form
Mid-Terrace
Constructed
2012 onwards
Certificate History
3 Nov 2022
82
82
21 Jun 2011
83
83
Total Floor Area
54 sq m
Current CO2 Emissions Level
0.9
Potential CO2 Emissions Level
0.9
CO2 per sq m per Year
17
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
Flat 8, 331-335
Date
3 Nov 2022
Current
Potential
81
81
Property Type
Flat
Built Form
Mid-Terrace
Constructed
2012 onwards
Certificate History
3 Nov 2022
81
81
21 Jun 2011
83
83
Total Floor Area
45 sq m
Current CO2 Emissions Level
0.8
Potential CO2 Emissions Level
0.8
CO2 per sq m per Year
18
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
Flat 9, 331-335
Date
3 Nov 2022
Current
Potential
82
82
Property Type
Flat
Built Form
Mid-Terrace
Constructed
2012 onwards
Certificate History
3 Nov 2022
82
82
21 Jun 2011
83
83
Total Floor Area
46 sq m
Current CO2 Emissions Level
0.8
Potential CO2 Emissions Level
0.8
CO2 per sq m per Year
18
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
Ground Floor Flat, 345 Chiswick High Road
Date
22 May 2017
Current
Potential
55
74
Property Type
Flat
Built Form
End-Terrace
Constructed
1900-1929
Certificate History
22 May 2017
55
74
1 Oct 2008
60
63
Total Floor Area
48 sq m
Current CO2 Emissions Level
3.1
Potential CO2 Emissions Level
1.5
CO2 per sq m per Year
64
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
1
Address
Second Floor Flat, 339 Chiswick High Road
Date
19 Jul 2024
Current
Potential
73
79
Property Type
Flat
Built Form
Mid-Terrace
Constructed
before 1900
Certificate History
19 Jul 2024
73
79
Total Floor Area
49 sq m
Current CO2 Emissions Level
1.6
Potential CO2 Emissions Level
1.1
CO2 per sq m per Year
33
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
Top Flat, 343 Chiswick High Road
Date
8 Feb 2018
Current
Potential
46
79
Property Type
Flat
Built Form
Mid-Terrace
Constructed
before 1900
Certificate History
8 Feb 2018
46
79
15 Apr 2010
55
72
Total Floor Area
47 sq m
Current CO2 Emissions Level
3.5
Potential CO2 Emissions Level
1.0
CO2 per sq m per Year
74
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
Top Flat, 345 Chiswick High Road
Date
2 Aug 2018
Current
Potential
40
72
Property Type
Flat
Built Form
End-Terrace
Constructed
before 1900
Certificate History
2 Aug 2018
40
72
20 Nov 2009
40
48
Total Floor Area
54 sq m
Current CO2 Emissions Level
4.3
Potential CO2 Emissions Level
1.8
CO2 per sq m per Year
79
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
1
Bands
Energy Performance Certificate Notes
There are a number of reasons that certificates are excluded from the dataset;
- The holder of the energy certificate has 'opted-out' of disclosure
- The certificate is excluded on the grounds of national security
- Certificates that are marked as 'cancelled' or 'not for issue'
Certificates are grouped together by the property reference identifier rather than the postal address with a view to showing the history of changes made to properties over time. Sometimes, one property may exist as multiple entries in the table instead and this is as a result of inconsistent building references being used on each prepared certificate.
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