PROPERTY ENERGY EFFICIENCY CERTIFICATE DETAILS
Thornton Avenue, LONDON, W4 1QF
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 Thornton Avenue, W4 1QF 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 Thornton Avenue, LONDON, W4 1QF
Period Covered:
2008 - 31 January 2025
Address
Inspection Date
Current
Potential
Property Type
Built Form
Constructed
Address
33 Thornton Avenue
Date
24 Feb 2010
Current
Potential
38
40
Property Type
House
Built Form
Detached
Constructed
1900-1929
Certificate History
24 Feb 2010
38
40
Total Floor Area
173 sq m
Current CO2 Emissions Level
15.0
Potential CO2 Emissions Level
15.0
CO2 per sq m per Year
69
Mains Gas Available
Yes
Habitable Rooms
8
Number of Extensions
2
Address
35 Thornton Avenue
Date
10 Feb 2016
Current
Potential
65
80
Property Type
House
Built Form
Semi-Detached
Constructed
before 1900
Certificate History
10 Feb 2016
65
80
Total Floor Area
202 sq m
Current CO2 Emissions Level
6.9
Potential CO2 Emissions Level
3.7
CO2 per sq m per Year
34
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
1
Address
41 Thornton Avenue
Date
31 Jul 2020
Current
Potential
61
75
Property Type
Flat
Built Form
Semi-Detached
Constructed
1900-1929
Certificate History
31 Jul 2020
61
75
23 Oct 2008
56
66
Total Floor Area
63 sq m
Current CO2 Emissions Level
3.1
Potential CO2 Emissions Level
1.7
CO2 per sq m per Year
49
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
1
Address
43 Thornton Avenue
Date
5 Jul 2022
Current
Potential
71
80
Property Type
House
Built Form
Semi-Detached
Constructed
1900-1929
Certificate History
5 Jul 2022
71
80
3 May 2012
51
74
Total Floor Area
233 sq m
Current CO2 Emissions Level
6.3
Potential CO2 Emissions Level
4.2
CO2 per sq m per Year
27
Mains Gas Available
Yes
Habitable Rooms
8
Number of Extensions
1
Address
47 Thornton Avenue
Date
6 Aug 2015
Current
Potential
66
77
Property Type
Flat
Built Form
Semi-Detached
Constructed
1900-1929
Certificate History
6 Aug 2015
66
77
10 Apr 2012
72
77
Total Floor Area
54 sq m
Current CO2 Emissions Level
2.4
Potential CO2 Emissions Level
1.3
CO2 per sq m per Year
44
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
47a Thornton Avenue
Date
24 Apr 2020
Current
Potential
44
63
Property Type
Flat
Built Form
Enclosed End-Terrace
Constructed
1900-1929
Certificate History
24 Apr 2020
44
63
20 Jul 2009
65
71
Total Floor Area
27 sq m
Current CO2 Emissions Level
2.2
Potential CO2 Emissions Level
1.3
CO2 per sq m per Year
82
Mains Gas Available
Yes
Habitable Rooms
1
Number of Extensions
1
Address
47b Thornton Avenue
Date
17 Jun 2014
Current
Potential
56
62
Property Type
Flat
Built Form
Semi-Detached
Constructed
before 1900
Certificate History
17 Jun 2014
56
62
31 May 2024
71
75
Total Floor Area
85 sq m
Current CO2 Emissions Level
4.5
Potential CO2 Emissions Level
3.8
CO2 per sq m per Year
53
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
0
Address
49 Thornton Avenue
Date
21 Oct 2019
Current
Potential
41
77
Property Type
House
Built Form
Semi-Detached
Constructed
1900-1929
Certificate History
21 Oct 2019
41
77
Total Floor Area
189 sq m
Current CO2 Emissions Level
11.9
Potential CO2 Emissions Level
4.1
CO2 per sq m per Year
63
Mains Gas Available
Yes
Habitable Rooms
7
Number of Extensions
1
Address
51 Thornton Avenue
Date
19 Jun 2016
Current
Potential
51
78
Property Type
House
Built Form
Semi-Detached
Constructed
before 1900
Certificate History
19 Jun 2016
51
78
22 Mar 2011
60
60
Total Floor Area
206 sq m
Current CO2 Emissions Level
10.0
Potential CO2 Emissions Level
4.1
CO2 per sq m per Year
49
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
1
Address
53 Thornton Avenue
Date
29 Aug 2018
Current
Potential
59
83
Property Type
House
Built Form
End-Terrace
Constructed
1900-1929
Certificate History
29 Aug 2018
59
83
Total Floor Area
176 sq m
Current CO2 Emissions Level
7.4
Potential CO2 Emissions Level
2.8
CO2 per sq m per Year
42
Mains Gas Available
Yes
Habitable Rooms
7
Number of Extensions
1
Address
59 Thornton Avenue
Date
9 May 2010
Current
Potential
57
63
Property Type
Flat
Built Form
Semi-Detached
Constructed
1950-1966
Certificate History
9 May 2010
57
63
Total Floor Area
53 sq m
Current CO2 Emissions Level
3.5
Potential CO2 Emissions Level
3.1
CO2 per sq m per Year
67
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
61 Thornton Avenue
Date
16 Mar 2020
Current
Potential
73
81
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1950-1966
Certificate History
16 Mar 2020
73
81
Total Floor Area
65 sq m
Current CO2 Emissions Level
2.0
Potential CO2 Emissions Level
1.2
CO2 per sq m per Year
30
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
63 Thornton Avenue
Date
25 Jan 2010
Current
Potential
67
70
Property Type
Flat
Built Form
Enclosed End-Terrace
Constructed
1950-1966
Certificate History
25 Jan 2010
67
70
Total Floor Area
61 sq m
Current CO2 Emissions Level
3.0
Potential CO2 Emissions Level
2.8
CO2 per sq m per Year
50
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
71 Thornton Avenue
Date
30 Oct 2015
Current
Potential
46
73
Property Type
Flat
Built Form
Mid-Terrace
Constructed
before 1900
Certificate History
30 Oct 2015
46
73
Total Floor Area
80 sq m
Current CO2 Emissions Level
5.5
Potential CO2 Emissions Level
2.3
CO2 per sq m per Year
69
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
1
Address
75 Thornton Avenue
Date
25 Jul 2012
Current
Potential
55
73
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
25 Jul 2012
55
73
Total Floor Area
172 sq m
Current CO2 Emissions Level
8.1
Potential CO2 Emissions Level
4.8
CO2 per sq m per Year
47
Mains Gas Available
Yes
Habitable Rooms
7
Number of Extensions
1
Address
First Floor Flat, 37 Thornton Avenue
Date
25 Aug 2009
Current
Potential
67
68
Property Type
Flat
Built Form
Semi-Detached
Constructed
1930-1949
Certificate History
25 Aug 2009
67
68
Total Floor Area
53 sq m
Current CO2 Emissions Level
4.0
Potential CO2 Emissions Level
3.9
CO2 per sq m per Year
42
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
First Floor Flat, 69 Thornton Avenue
Date
31 May 2020
Current
Potential
60
78
Property Type
Flat
Built Form
End-Terrace
Constructed
before 1900
Certificate History
31 May 2020
60
78
4 Apr 2010
71
75
Total Floor Area
83 sq m
Current CO2 Emissions Level
4.0
Potential CO2 Emissions Level
1.8
CO2 per sq m per Year
48
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
1
Address
First Floor Flat, 71 Thornton Avenue
Date
12 Oct 2016
Current
Potential
45
80
Property Type
Maisonette
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
12 Oct 2016
45
80
Total Floor Area
84 sq m
Current CO2 Emissions Level
5.8
Potential CO2 Emissions Level
1.6
CO2 per sq m per Year
69
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
1
Address
Flat 1, 69 Thornton Avenue
Date
9 Mar 2022
Current
Potential
33
76
Property Type
Flat
Built Form
End-Terrace
Constructed
1900-1929
Certificate History
9 Mar 2022
33
76
Total Floor Area
65 sq m
Current CO2 Emissions Level
7.6
Potential CO2 Emissions Level
1.7
CO2 per sq m per Year
117
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
1
Address
Flat 1, 77 Thornton Avenue
Date
24 Feb 2015
Current
Potential
57
74
Property Type
Flat
Built Form
End-Terrace
Constructed
before 1900
Certificate History
24 Feb 2015
57
74
Total Floor Area
33 sq m
Current CO2 Emissions Level
2.5
Potential CO2 Emissions Level
1.2
CO2 per sq m per Year
75
Mains Gas Available
Yes
Habitable Rooms
1
Number of Extensions
0
Address
Flat 2, 77 Thornton Avenue
Date
27 Feb 2009
Current
Potential
73
73
Property Type
Flat
Built Form
Semi-Detached
Constructed
1900-1929
Certificate History
27 Feb 2009
73
73
12 Nov 2008
71
71
Total Floor Area
31 sq m
Current CO2 Emissions Level
1.7
Potential CO2 Emissions Level
1.7
CO2 per sq m per Year
56
Mains Gas Available
Yes
Habitable Rooms
1
Number of Extensions
0
Address
FLAT 2, 77 THORNTON AVENUE
Date
19 May 2021
Current
Potential
64
76
Property Type
Flat
Built Form
Enclosed End-Terrace
Constructed
1900-1929
Certificate History
19 May 2021
64
76
Total Floor Area
32 sq m
Current CO2 Emissions Level
2.0
Potential CO2 Emissions Level
1.1
CO2 per sq m per Year
62
Mains Gas Available
Yes
Habitable Rooms
1
Number of Extensions
0
Address
Flat 3, 77 Thornton Avenue
Date
15 Jul 2009
Current
Potential
48
50
Property Type
Flat
Built Form
Detached
Constructed
1900-1929
Certificate History
15 Jul 2009
48
50
Total Floor Area
55 sq m
Current CO2 Emissions Level
4.8
Potential CO2 Emissions Level
4.7
CO2 per sq m per Year
86
Mains Gas Available
Yes
Habitable Rooms
1
Number of Extensions
0
Address
FLAT 3, 77 THORNTON AVENUE
Date
19 May 2021
Current
Potential
65
79
Property Type
Flat
Built Form
Semi-Detached
Constructed
1900-1929
Certificate History
19 May 2021
65
79
Total Floor Area
43 sq m
Current CO2 Emissions Level
2.3
Potential CO2 Emissions Level
1.1
CO2 per sq m per Year
53
Mains Gas Available
Yes
Habitable Rooms
1
Number of Extensions
0
Address
Flat 4, 77 Thornton Avenue
Date
12 Nov 2008
Current
Potential
71
71
Property Type
Flat
Built Form
End-Terrace
Constructed
before 1900
Certificate History
12 Nov 2008
71
71
Total Floor Area
37 sq m
Current CO2 Emissions Level
2.4
Potential CO2 Emissions Level
2.4
CO2 per sq m per Year
64
Mains Gas Available
Yes
Habitable Rooms
1
Number of Extensions
0
Address
FLAT 4, 77 THORNTON AVENUE
Date
19 May 2021
Current
Potential
55
76
Property Type
Flat
Built Form
Enclosed End-Terrace
Constructed
1900-1929
Certificate History
19 May 2021
55
76
Total Floor Area
32 sq m
Current CO2 Emissions Level
2.7
Potential CO2 Emissions Level
1.1
CO2 per sq m per Year
84
Mains Gas Available
Yes
Habitable Rooms
1
Number of Extensions
0
Address
Flat 5, 77 Thornton Avenue
Date
25 Jun 2009
Current
Potential
59
67
Property Type
Flat
Built Form
Detached
Constructed
1900-1929
Certificate History
25 Jun 2009
59
67
Total Floor Area
32 sq m
Current CO2 Emissions Level
2.7
Potential CO2 Emissions Level
2.2
CO2 per sq m per Year
86
Mains Gas Available
Yes
Habitable Rooms
1
Number of Extensions
0
Address
FLAT 5, 77 THORNTON AVENUE
Date
19 May 2021
Current
Potential
61
65
Property Type
Flat
Built Form
Semi-Detached
Constructed
1900-1929
Certificate History
19 May 2021
61
65
Total Floor Area
43 sq m
Current CO2 Emissions Level
2.6
Potential CO2 Emissions Level
2.3
CO2 per sq m per Year
61
Mains Gas Available
Yes
Habitable Rooms
1
Number of Extensions
0
Address
Flat First Floor, 37 Thornton Avenue
Date
3 May 2022
Current
Potential
60
73
Property Type
Flat
Built Form
Semi-Detached
Constructed
1950-1966
Certificate History
3 May 2022
60
73
Total Floor Area
132 sq m
Current CO2 Emissions Level
5.5
Potential CO2 Emissions Level
3.6
CO2 per sq m per Year
42
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
Ground Floor Flat, 37 Thornton Avenue
Date
23 Jul 2020
Current
Potential
53
69
Property Type
Flat
Built Form
Semi-Detached
Constructed
1900-1929
Certificate History
23 Jul 2020
53
69
24 Aug 2010
49
54
Total Floor Area
61 sq m
Current CO2 Emissions Level
3.8
Potential CO2 Emissions Level
2.2
CO2 per sq m per Year
62
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
Top Floor Flat, 41 Thornton Avenue
Date
31 Jul 2020
Current
Potential
55
79
Property Type
Maisonette
Built Form
Semi-Detached
Constructed
1900-1929
Certificate History
31 Jul 2020
55
79
25 Oct 2008
55
57
Total Floor Area
116 sq m
Current CO2 Emissions Level
5.8
Potential CO2 Emissions Level
2.3
CO2 per sq m per Year
50
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
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.