PROPERTY ENERGY EFFICIENCY CERTIFICATE DETAILS
Balfour Avenue, LONDON, W7 3HS
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 Balfour Avenue, W7 3HS 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 Balfour Avenue, LONDON, W7 3HS
Period Covered:
2008 - 31 January 2025
Address
Inspection Date
Current
Potential
Property Type
Built Form
Constructed
Address
1 BALFOUR AVENUE, HANWELL
Date
1 Oct 2020
Current
Potential
57
75
Property Type
House
Built Form
Semi-Detached
Constructed
1900-1929
Certificate History
1 Oct 2020
57
75
1 Oct 2020
52
75
Total Floor Area
168 sq m
Current CO2 Emissions Level
7.5
Potential CO2 Emissions Level
4.3
CO2 per sq m per Year
45
Mains Gas Available
Yes
Habitable Rooms
7
Number of Extensions
0
Address
11 Balfour Avenue
Date
29 Feb 2012
Current
Potential
48
57
Property Type
House
Built Form
Semi-Detached
Constructed
1900-1929
Certificate History
29 Feb 2012
48
57
Total Floor Area
212 sq m
Current CO2 Emissions Level
12.0
Potential CO2 Emissions Level
9.9
CO2 per sq m per Year
57
Mains Gas Available
Yes
Habitable Rooms
8
Number of Extensions
1
Address
13 Balfour Avenue
Date
31 Jul 2023
Current
Potential
73
77
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
31 Jul 2023
73
77
3 Mar 2010
49
55
3 Nov 2008
18
25
Total Floor Area
84 sq m
Current CO2 Emissions Level
2.5
Potential CO2 Emissions Level
1.9
CO2 per sq m per Year
30
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
1
Address
13a Balfour Avenue
Date
27 Feb 2021
Current
Potential
59
79
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1930-1949
Certificate History
27 Feb 2021
59
79
22 Oct 2009
51
67
Total Floor Area
75 sq m
Current CO2 Emissions Level
3.8
Potential CO2 Emissions Level
1.5
CO2 per sq m per Year
50
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
14 Balfour Avenue
Date
20 Oct 2013
Current
Potential
38
85
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
20 Oct 2013
38
85
12 Mar 2013
46
85
Total Floor Area
111 sq m
Current CO2 Emissions Level
9.9
Potential CO2 Emissions Level
1.6
CO2 per sq m per Year
89
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
1
Address
17 Balfour Avenue
Date
4 Mar 2009
Current
Potential
40
59
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
4 Mar 2009
40
59
Total Floor Area
136 sq m
Current CO2 Emissions Level
9.8
Potential CO2 Emissions Level
6.7
CO2 per sq m per Year
72
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
0
Address
2 Balfour Avenue
Date
19 Feb 2015
Current
Potential
65
85
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
19 Feb 2015
65
85
Total Floor Area
117 sq m
Current CO2 Emissions Level
4.4
Potential CO2 Emissions Level
1.6
CO2 per sq m per Year
38
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
1
Address
21a Balfour Avenue
Date
21 Mar 2011
Current
Potential
61
61
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1930-1949
Certificate History
21 Mar 2011
61
61
6 Sep 2009
68
69
Total Floor Area
84 sq m
Current CO2 Emissions Level
4.5
Potential CO2 Emissions Level
4.5
CO2 per sq m per Year
53
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
21b Balfour Avenue
Date
4 Aug 2013
Current
Potential
47
63
Property Type
Flat
Built Form
Semi-Detached
Constructed
1900-1929
Certificate History
4 Aug 2013
47
63
Total Floor Area
68 sq m
Current CO2 Emissions Level
4.7
Potential CO2 Emissions Level
3.1
CO2 per sq m per Year
69
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
24 Balfour Avenue
Date
5 Aug 2018
Current
Potential
72
83
Property Type
House
Built Form
Mid-Terrace
Constructed
1930-1949
Certificate History
5 Aug 2018
72
83
Total Floor Area
156 sq m
Current CO2 Emissions Level
4.2
Potential CO2 Emissions Level
2.6
CO2 per sq m per Year
27
Mains Gas Available
Yes
Habitable Rooms
7
Number of Extensions
1
Address
25 Balfour Avenue
Date
13 Apr 2014
Current
Potential
46
71
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
13 Apr 2014
46
71
17 Mar 2009
9
9
Total Floor Area
133 sq m
Current CO2 Emissions Level
7.4
Potential CO2 Emissions Level
3.9
CO2 per sq m per Year
55
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
0
Address
28 Balfour Avenue
Date
2 May 2019
Current
Potential
61
80
Property Type
House
Built Form
Mid-Terrace
Constructed
1930-1949
Certificate History
2 May 2019
61
80
29 Apr 2009
55
61
Total Floor Area
146 sq m
Current CO2 Emissions Level
6.0
Potential CO2 Emissions Level
2.8
CO2 per sq m per Year
41
Mains Gas Available
Yes
Habitable Rooms
7
Number of Extensions
1
Address
29 Balfour Avenue
Date
25 Sep 2009
Current
Potential
49
59
Property Type
House
Built Form
Detached
Constructed
1930-1949
Certificate History
25 Sep 2009
49
59
Total Floor Area
217 sq m
Current CO2 Emissions Level
12.0
Potential CO2 Emissions Level
9.5
CO2 per sq m per Year
54
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
1
Address
30 Balfour Avenue
Date
7 Oct 2010
Current
Potential
51
59
Property Type
House
Built Form
Semi-Detached
Constructed
1930-1949
Certificate History
7 Oct 2010
51
59
Total Floor Area
113 sq m
Current CO2 Emissions Level
6.9
Potential CO2 Emissions Level
5.8
CO2 per sq m per Year
61
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
1
Address
4 BALFOUR AVENUE
Date
30 Aug 2023
Current
Potential
74
83
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
30 Aug 2023
74
83
29 Aug 2023
77
87
29 Aug 2023
78
86
19 Jul 2021
11
87
Total Floor Area
149 sq m
Current CO2 Emissions Level
3.8
Potential CO2 Emissions Level
2.4
CO2 per sq m per Year
25
Mains Gas Available
Yes
Habitable Rooms
8
Number of Extensions
1
Address
40 Balfour Avenue
Date
1 Feb 2011
Current
Potential
54
61
Property Type
Flat
Built Form
Semi-Detached
Constructed
1900-1929
Certificate History
1 Feb 2011
54
61
Total Floor Area
73 sq m
Current CO2 Emissions Level
4.7
Potential CO2 Emissions Level
4.0
CO2 per sq m per Year
64
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
40a Balfour Avenue
Date
25 Jul 2010
Current
Potential
43
55
Property Type
Flat
Built Form
Detached
Constructed
1900-1929
Certificate History
25 Jul 2010
43
55
Total Floor Area
67 sq m
Current CO2 Emissions Level
6.1
Potential CO2 Emissions Level
4.7
CO2 per sq m per Year
69
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
1
Address
42a Balfour Avenue
Date
24 Jan 2017
Current
Potential
43
62
Property Type
Flat
Built Form
End-Terrace
Constructed
1900-1929
Certificate History
24 Jan 2017
43
62
Total Floor Area
88 sq m
Current CO2 Emissions Level
6.3
Potential CO2 Emissions Level
3.9
CO2 per sq m per Year
72
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
5 Balfour Avenue
Date
27 Jun 2019
Current
Potential
51
81
Property Type
House
Built Form
Semi-Detached
Constructed
1900-1929
Certificate History
27 Jun 2019
51
81
Total Floor Area
211 sq m
Current CO2 Emissions Level
9.9
Potential CO2 Emissions Level
3.7
CO2 per sq m per Year
47
Mains Gas Available
Yes
Habitable Rooms
9
Number of Extensions
1
Address
6 Balfour Avenue
Date
5 May 2015
Current
Potential
57
76
Property Type
House
Built Form
Mid-Terrace
Constructed
1930-1949
Certificate History
5 May 2015
57
76
Total Floor Area
111 sq m
Current CO2 Emissions Level
5.4
Potential CO2 Emissions Level
2.9
CO2 per sq m per Year
49
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
1
Address
7 Balfour Avenue
Date
20 Jun 2022
Current
Potential
63
80
Property Type
House
Built Form
Semi-Detached
Constructed
1900-1929
Certificate History
20 Jun 2022
63
80
Total Floor Area
234 sq m
Current CO2 Emissions Level
8.4
Potential CO2 Emissions Level
4.2
CO2 per sq m per Year
36
Mains Gas Available
Yes
Habitable Rooms
9
Number of Extensions
0
Address
8 Balfour Avenue
Date
20 Feb 2009
Current
Potential
40
70
Property Type
House
Built Form
Mid-Terrace
Constructed
1930-1949
Certificate History
20 Feb 2009
40
70
Total Floor Area
115 sq m
Current CO2 Emissions Level
8.1
Potential CO2 Emissions Level
3.9
CO2 per sq m per Year
77
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
1
Address
8 BALFOUR AVENUE, HANWELL
Date
22 Dec 2020
Current
Potential
57
80
Property Type
House
Built Form
Mid-Terrace
Constructed
1930-1949
Certificate History
22 Dec 2020
57
80
Total Floor Area
114 sq m
Current CO2 Emissions Level
5.5
Potential CO2 Emissions Level
2.4
CO2 per sq m per Year
49
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
1
Address
First Floor Flat, 22 Balfour Avenue
Date
21 Sep 2020
Current
Potential
72
77
Property Type
Flat
Built Form
End-Terrace
Constructed
1930-1949
Certificate History
21 Sep 2020
72
77
9 Mar 2017
66
77
Total Floor Area
92 sq m
Current CO2 Emissions Level
2.8
Potential CO2 Emissions Level
2.1
CO2 per sq m per Year
30
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
1
Address
Flat 1, 10 Balfour Avenue
Date
7 Jan 2023
Current
Potential
64
71
Property Type
Flat
Built Form
Semi-Detached
Constructed
1930-1949
Certificate History
7 Jan 2023
64
71
Total Floor Area
67 sq m
Current CO2 Emissions Level
3.0
Potential CO2 Emissions Level
2.2
CO2 per sq m per Year
45
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
1
Address
Flat 2, 10 Balfour Avenue
Date
18 May 2023
Current
Potential
78
80
Property Type
Flat
Built Form
Semi-Detached
Constructed
1930-1949
Certificate History
18 May 2023
78
80
Total Floor Area
33 sq m
Current CO2 Emissions Level
0.9
Potential CO2 Emissions Level
0.7
CO2 per sq m per Year
27
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
Flat 3, 10 Balfour Avenue
Date
18 May 2023
Current
Potential
59
69
Property Type
Flat
Built Form
Semi-Detached
Constructed
1930-1949
Certificate History
18 May 2023
59
69
21 Dec 2012
79
80
Total Floor Area
34 sq m
Current CO2 Emissions Level
2.3
Potential CO2 Emissions Level
1.6
CO2 per sq m per Year
68
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
1
Address
Flat A, 2 Balfour Avenue
Date
18 Feb 2013
Current
Potential
72
78
Property Type
Flat
Built Form
Semi-Detached
Constructed
1996-2002
Certificate History
18 Feb 2013
72
78
Total Floor Area
23 sq m
Current CO2 Emissions Level
1.0
Potential CO2 Emissions Level
0.7
CO2 per sq m per Year
44
Mains Gas Available
Yes
Habitable Rooms
1
Number of Extensions
0
Address
Ground Floor Flat, 13 Balfour Avenue
Date
12 Mar 2020
Current
Potential
67
76
Property Type
Flat
Built Form
Semi-Detached
Constructed
1900-1929
Certificate History
12 Mar 2020
67
76
Total Floor Area
81 sq m
Current CO2 Emissions Level
3.1
Potential CO2 Emissions Level
2.0
CO2 per sq m per Year
38
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
1
Address
Ground Floor Flat, 22 Balfour Avenue
Date
20 Sep 2024
Current
Potential
66
76
Property Type
Maisonette
Built Form
Semi-Detached
Constructed
1930-1949
Certificate History
20 Sep 2024
66
76
19 Mar 2013
56
78
Total Floor Area
60 sq m
Current CO2 Emissions Level
2.6
Potential CO2 Emissions Level
1.6
CO2 per sq m per Year
43
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
1
Address
Ground Floor Flat, 32 Balfour Avenue
Date
24 Jan 2022
Current
Potential
39
73
Property Type
Flat
Built Form
Semi-Detached
Constructed
1900-1929
Certificate History
24 Jan 2022
39
73
17 Apr 2012
44
76
Total Floor Area
74 sq m
Current CO2 Emissions Level
6.0
Potential CO2 Emissions Level
2.2
CO2 per sq m per Year
82
Mains Gas Available
Yes
Habitable Rooms
3
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.
Contains public sector information licensed under the Open Government Licence v3.0.
Contains Royal Mail data © Royal Mail copyright and Database right 2025.