PROPERTY ENERGY EFFICIENCY CERTIFICATE DETAILS
Chiswick High Road, LONDON, W4 5RH

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 5RH 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 5RH
Period Covered: 2008 - 31 January 2025

Address
Inspection Date
Current
Potential
Property Type
Built Form
Constructed
Address
Flat 1 Mortlake House, Chiswick High Road
Date
15 Oct 2013
Current
Potential
56
70
Property Type
Flat
Built Form
Enclosed End-Terrace
Constructed
1967-1975
+
Certificate History
15 Oct 2013
56
70
3 Jun 2009
26
55
Total Floor Area
65 sq m
Current CO2 Emissions Level
5.1
Potential CO2 Emissions Level
3.5
CO2 per sq m per Year
79
Mains Gas Available
No
Habitable Rooms
3
Number of Extensions
0
Address
Flat 10 Mortlake House, Chiswick High Road
Date
15 Oct 2013
Current
Potential
66
77
Property Type
Flat
Built Form
Enclosed End-Terrace
Constructed
1967-1975
+
Certificate History
15 Oct 2013
66
77
28 Oct 2008
59
64
Total Floor Area
74 sq m
Current CO2 Emissions Level
3.8
Potential CO2 Emissions Level
2.4
CO2 per sq m per Year
51
Mains Gas Available
No
Habitable Rooms
4
Number of Extensions
0
Address
Flat 11 Mortlake House, Chiswick High Road
Date
15 Oct 2013
Current
Potential
70
81
Property Type
Flat
Built Form
Enclosed End-Terrace
Constructed
1967-1975
+
Certificate History
15 Oct 2013
70
81
Total Floor Area
64 sq m
Current CO2 Emissions Level
3.6
Potential CO2 Emissions Level
2.3
CO2 per sq m per Year
57
Mains Gas Available
No
Habitable Rooms
3
Number of Extensions
0
Address
Flat 12 Mortlake House, Chiswick High Road
Date
21 Nov 2018
Current
Potential
69
76
Property Type
Flat
Built Form
Enclosed End-Terrace
Constructed
1950-1966
+
Certificate History
21 Nov 2018
69
76
15 Oct 2013
71
82
28 Oct 2008
60
66
Total Floor Area
61 sq m
Current CO2 Emissions Level
3.3
Potential CO2 Emissions Level
2.7
CO2 per sq m per Year
55
Mains Gas Available
No
Habitable Rooms
3
Number of Extensions
0
Address
Flat 13 Mortlake House, Chiswick High Road
Date
15 Oct 2013
Current
Potential
63
81
Property Type
Flat
Built Form
Enclosed End-Terrace
Constructed
1967-1975
+
Certificate History
15 Oct 2013
63
81
Total Floor Area
65 sq m
Current CO2 Emissions Level
3.9
Potential CO2 Emissions Level
2.5
CO2 per sq m per Year
61
Mains Gas Available
No
Habitable Rooms
3
Number of Extensions
0
Address
Flat 14, Mortlake House
Date
23 Nov 2023
Current
Potential
61
83
Property Type
Flat
Built Form
End-Terrace
Constructed
1976-1982
+
Certificate History
23 Nov 2023
61
83
Total Floor Area
73 sq m
Current CO2 Emissions Level
2.7
Potential CO2 Emissions Level
2.2
CO2 per sq m per Year
36
Mains Gas Available
No
Habitable Rooms
3
Number of Extensions
0
Address
Flat 14 Mortlake House, Chiswick High Road
Date
15 Oct 2013
Current
Potential
64
81
Property Type
Flat
Built Form
Enclosed End-Terrace
Constructed
1967-1975
+
Certificate History
15 Oct 2013
64
81
2 Oct 2009
72
80
Total Floor Area
74 sq m
Current CO2 Emissions Level
4.1
Potential CO2 Emissions Level
2.6
CO2 per sq m per Year
56
Mains Gas Available
No
Habitable Rooms
3
Number of Extensions
0
Address
Flat 15, Mortlake House
Date
17 Oct 2023
Current
Potential
74
81
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1983-1990
+
Certificate History
17 Oct 2023
74
81
Total Floor Area
62 sq m
Current CO2 Emissions Level
2.3
Potential CO2 Emissions Level
2.2
CO2 per sq m per Year
37
Mains Gas Available
No
Habitable Rooms
3
Number of Extensions
0
Address
Flat 15 Mortlake House, Chiswick High Road
Date
15 Oct 2013
Current
Potential
68
80
Property Type
Flat
Built Form
Enclosed End-Terrace
Constructed
1967-1975
+
Certificate History
15 Oct 2013
68
80
3 Aug 2009
65
73
Total Floor Area
64 sq m
Current CO2 Emissions Level
3.8
Potential CO2 Emissions Level
2.4
CO2 per sq m per Year
59
Mains Gas Available
No
Habitable Rooms
3
Number of Extensions
0
Address
Flat 16 Mortlake House, Chiswick High Road
Date
21 Nov 2018
Current
Potential
68
75
Property Type
Flat
Built Form
Enclosed End-Terrace
Constructed
1950-1966
+
Certificate History
21 Nov 2018
68
75
15 Oct 2013
67
82
17 Oct 2008
64
68
Total Floor Area
62 sq m
Current CO2 Emissions Level
3.3
Potential CO2 Emissions Level
2.9
CO2 per sq m per Year
54
Mains Gas Available
No
Habitable Rooms
3
Number of Extensions
0
Address
Flat 17, Mortlake House
Date
29 Jan 2024
Current
Potential
70
78
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1967-1975
+
Certificate History
29 Jan 2024
70
78
29 Jan 2024
60
78
Total Floor Area
60 sq m
Current CO2 Emissions Level
1.6
Potential CO2 Emissions Level
1.6
CO2 per sq m per Year
27
Mains Gas Available
No
Habitable Rooms
3
Number of Extensions
0
Address
Flat 17 Mortlake House, Chiswick High Road
Date
5 Nov 2013
Current
Potential
53
74
Property Type
Flat
Built Form
Enclosed End-Terrace
Constructed
1967-1975
+
Certificate History
5 Nov 2013
53
74
15 Oct 2013
45
74
13 Apr 2009
41
46
Total Floor Area
65 sq m
Current CO2 Emissions Level
5.4
Potential CO2 Emissions Level
2.7
CO2 per sq m per Year
83
Mains Gas Available
No
Habitable Rooms
3
Number of Extensions
0
Address
Flat 18 Mortlake House, Chiswick High Road
Date
15 Oct 2013
Current
Potential
44
73
Property Type
Flat
Built Form
Enclosed End-Terrace
Constructed
1967-1975
+
Certificate History
15 Oct 2013
44
73
19 Oct 2008
48
62
Total Floor Area
74 sq m
Current CO2 Emissions Level
7.1
Potential CO2 Emissions Level
3.0
CO2 per sq m per Year
96
Mains Gas Available
No
Habitable Rooms
4
Number of Extensions
0
Address
Flat 19 Mortlake House, Chiswick High Road
Date
15 Oct 2013
Current
Potential
47
76
Property Type
Flat
Built Form
Enclosed End-Terrace
Constructed
1967-1975
+
Certificate History
15 Oct 2013
47
76
Total Floor Area
64 sq m
Current CO2 Emissions Level
6.6
Potential CO2 Emissions Level
3.0
CO2 per sq m per Year
104
Mains Gas Available
No
Habitable Rooms
3
Number of Extensions
0
Address
Flat 2 Mortlake House, Chiswick High Road
Date
15 Oct 2013
Current
Potential
30
72
Property Type
Flat
Built Form
Enclosed End-Terrace
Constructed
1967-1975
+
Certificate History
15 Oct 2013
30
72
Total Floor Area
74 sq m
Current CO2 Emissions Level
5.2
Potential CO2 Emissions Level
4.0
CO2 per sq m per Year
70
Mains Gas Available
No
Habitable Rooms
3
Number of Extensions
0
Address
Flat 20 Mortlake House, Chiswick High Road
Date
15 Oct 2013
Current
Potential
36
80
Property Type
Flat
Built Form
Enclosed End-Terrace
Constructed
1967-1975
+
Certificate History
15 Oct 2013
36
80
5 Mar 2010
18
45
Total Floor Area
65 sq m
Current CO2 Emissions Level
7.1
Potential CO2 Emissions Level
2.7
CO2 per sq m per Year
109
Mains Gas Available
No
Habitable Rooms
3
Number of Extensions
0
Address
Flat 21 Mortlake House, 512, Chiswick High Road
Date
24 Jan 2019
Current
Potential
93
93
Property Type
Flat
Built Form
Detached
Constructed
N/A
+
Certificate History
24 Jan 2019
93
93
Total Floor Area
57 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 22 Mortlake House, 512, Chiswick High Road
Date
24 Jan 2019
Current
Potential
93
93
Property Type
Flat
Built Form
Detached
Constructed
N/A
+
Certificate History
24 Jan 2019
93
93
Total Floor Area
71 sq m
Current CO2 Emissions Level
1.0
Potential CO2 Emissions Level
1.0
CO2 per sq m per Year
15
Mains Gas Available
No
Habitable Rooms
0
Number of Extensions
0
Address
Flat 23 Mortlake House, 512, Chiswick High Road
Date
24 Jan 2019
Current
Potential
93
93
Property Type
Flat
Built Form
Detached
Constructed
N/A
+
Certificate History
24 Jan 2019
93
93
Total Floor Area
68 sq m
Current CO2 Emissions Level
1.0
Potential CO2 Emissions Level
1.0
CO2 per sq m per Year
15
Mains Gas Available
No
Habitable Rooms
0
Number of Extensions
0
Address
Flat 24 Mortlake House, 512, Chiswick High Road
Date
24 Jan 2019
Current
Potential
93
93
Property Type
Flat
Built Form
Detached
Constructed
N/A
+
Certificate History
24 Jan 2019
93
93
Total Floor Area
55 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 25 Mortlake House, 512, Chiswick High Road
Date
24 Jan 2019
Current
Potential
92
92
Property Type
Flat
Built Form
Detached
Constructed
N/A
+
Certificate History
24 Jan 2019
92
92
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
No
Habitable Rooms
0
Number of Extensions
0
Address
Flat 26 Mortlake House, 512, Chiswick High Road
Date
24 Jan 2019
Current
Potential
92
92
Property Type
Flat
Built Form
Detached
Constructed
N/A
+
Certificate History
24 Jan 2019
92
92
Total Floor Area
64 sq m
Current CO2 Emissions Level
1.2
Potential CO2 Emissions Level
1.2
CO2 per sq m per Year
19
Mains Gas Available
No
Habitable Rooms
0
Number of Extensions
0
Address
Flat 27 Mortlake House, 512, Chiswick High Road
Date
24 Jan 2019
Current
Potential
91
91
Property Type
Flat
Built Form
Detached
Constructed
N/A
+
Certificate History
24 Jan 2019
91
91
Total Floor Area
62 sq m
Current CO2 Emissions Level
1.3
Potential CO2 Emissions Level
1.3
CO2 per sq m per Year
21
Mains Gas Available
No
Habitable Rooms
0
Number of Extensions
0
Address
Flat 28 Mortlake House, 512, Chiswick High Road
Date
24 Jan 2019
Current
Potential
91
91
Property Type
Flat
Built Form
Detached
Constructed
N/A
+
Certificate History
24 Jan 2019
91
91
Total Floor Area
49 sq m
Current CO2 Emissions Level
1.1
Potential CO2 Emissions Level
1.1
CO2 per sq m per Year
23
Mains Gas Available
No
Habitable Rooms
0
Number of Extensions
0
Address
Flat 3 Mortlake House, Chiswick High Road
Date
15 Oct 2013
Current
Potential
54
73
Property Type
Flat
Built Form
Enclosed End-Terrace
Constructed
1967-1975
+
Certificate History
15 Oct 2013
54
73
Total Floor Area
64 sq m
Current CO2 Emissions Level
4.2
Potential CO2 Emissions Level
3.5
CO2 per sq m per Year
66
Mains Gas Available
No
Habitable Rooms
3
Number of Extensions
0
Address
Flat 4, Mortlake House
Date
24 Jul 2023
Current
Potential
79
81
Property Type
Flat
Built Form
Semi-Detached
Constructed
1996-2002
+
Certificate History
24 Jul 2023
79
81
Total Floor Area
59 sq m
Current CO2 Emissions Level
1.6
Potential CO2 Emissions Level
1.5
CO2 per sq m per Year
27
Mains Gas Available
No
Habitable Rooms
3
Number of Extensions
0
Address
Flat 4 Mortlake House, Chiswick High Road
Date
15 Oct 2013
Current
Potential
60
72
Property Type
Flat
Built Form
Enclosed End-Terrace
Constructed
1967-1975
+
Certificate History
15 Oct 2013
60
72
Total Floor Area
65 sq m
Current CO2 Emissions Level
5.0
Potential CO2 Emissions Level
3.7
CO2 per sq m per Year
77
Mains Gas Available
No
Habitable Rooms
3
Number of Extensions
0
Address
Flat 5 Mortlake House, Chiswick High Road
Date
21 Nov 2018
Current
Potential
66
73
Property Type
Flat
Built Form
Enclosed End-Terrace
Constructed
1950-1966
+
Certificate History
21 Nov 2018
66
73
15 Oct 2013
65
78
15 Oct 2013
64
78
14 Oct 2008
57
59
Total Floor Area
62 sq m
Current CO2 Emissions Level
3.7
Potential CO2 Emissions Level
3.2
CO2 per sq m per Year
60
Mains Gas Available
No
Habitable Rooms
3
Number of Extensions
0
Address
Flat 6 Mortlake House, Chiswick High Road
Date
21 Nov 2018
Current
Potential
56
73
Property Type
Flat
Built Form
Enclosed End-Terrace
Constructed
1950-1966
+
Certificate History
21 Nov 2018
56
73
15 Oct 2013
64
82
Total Floor Area
74 sq m
Current CO2 Emissions Level
5.3
Potential CO2 Emissions Level
3.5
CO2 per sq m per Year
72
Mains Gas Available
No
Habitable Rooms
4
Number of Extensions
0
Address
Flat 7, Mortlake House
Date
9 Oct 2023
Current
Potential
71
78
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1967-1975
+
Certificate History
9 Oct 2023
71
78
Total Floor Area
52 sq m
Current CO2 Emissions Level
2.0
Potential CO2 Emissions Level
1.6
CO2 per sq m per Year
38
Mains Gas Available
No
Habitable Rooms
3
Number of Extensions
0
Address
Flat 7 Mortlake House, Chiswick High Road
Date
15 Oct 2013
Current
Potential
67
77
Property Type
Flat
Built Form
Enclosed End-Terrace
Constructed
1967-1975
+
Certificate History
15 Oct 2013
67
77
14 Oct 2008
58
58
Total Floor Area
64 sq m
Current CO2 Emissions Level
4.4
Potential CO2 Emissions Level
3.2
CO2 per sq m per Year
69
Mains Gas Available
No
Habitable Rooms
3
Number of Extensions
0
Address
Flat 8 Mortlake House, Chiswick High Road
Date
21 Nov 2018
Current
Potential
68
75
Property Type
Flat
Built Form
Enclosed End-Terrace
Constructed
1950-1966
+
Certificate History
21 Nov 2018
68
75
15 Oct 2013
71
82
14 Oct 2008
69
69
Total Floor Area
62 sq m
Current CO2 Emissions Level
3.4
Potential CO2 Emissions Level
2.9
CO2 per sq m per Year
55
Mains Gas Available
No
Habitable Rooms
3
Number of Extensions
0
Address
Flat 9, Mortlake House
Date
31 Oct 2023
Current
Potential
75
82
Property Type
Flat
Built Form
Semi-Detached
Constructed
1996-2002
+
Certificate History
31 Oct 2023
75
82
Total Floor Area
61 sq m
Current CO2 Emissions Level
2.0
Potential CO2 Emissions Level
1.9
CO2 per sq m per Year
33
Mains Gas Available
No
Habitable Rooms
3
Number of Extensions
0
Address
Flat 9 Mortlake House, Chiswick High Road
Date
15 Oct 2013
Current
Potential
63
81
Property Type
Flat
Built Form
Enclosed End-Terrace
Constructed
1967-1975
+
Certificate History
15 Oct 2013
63
81
3 Aug 2009
68
74
Total Floor Area
65 sq m
Current CO2 Emissions Level
3.9
Potential CO2 Emissions Level
2.4
CO2 per sq m per Year
60
Mains Gas Available
No
Habitable Rooms
3
Number of Extensions
0
Bands

A
92 - 100
B
81 - 91
C
69 - 80
D
55 -68
E
39 -54
F
54 -38
G
0 - 20

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.

Contains public sector information licensed under the Open Government Licence v3.0.
Contains Royal Mail data © Royal Mail copyright and Database right 2025.