PROPERTY ENERGY EFFICIENCY CERTIFICATE DETAILS
Testerton Walk, LONDON, W11 1WQ
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 Testerton Walk, W11 1WQ 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 Testerton Walk, LONDON, W11 1WQ
Period Covered:
2008 - 31 January 2025
Address
Inspection Date
Current
Potential
Property Type
Built Form
Constructed
Address
401 Testerton Walk
Date
28 Feb 2012
Current
Potential
64
67
Property Type
Flat
Built Form
End-Terrace
Constructed
1967-1975
Certificate History
28 Feb 2012
64
67
Total Floor Area
33 sq m
Current CO2 Emissions Level
2.1
Potential CO2 Emissions Level
1.8
CO2 per sq m per Year
64
Mains Gas Available
Yes
Habitable Rooms
1
Number of Extensions
0
Address
402 Testerton Walk
Date
3 Mar 2009
Current
Potential
71
75
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1967-1975
Certificate History
3 Mar 2009
71
75
Total Floor Area
81 sq m
Current CO2 Emissions Level
3.3
Potential CO2 Emissions Level
2.8
CO2 per sq m per Year
41
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
403 Testerton Walk
Date
14 Mar 2022
Current
Potential
71
77
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1930-1949
Certificate History
14 Mar 2022
71
77
4 Jan 2022
73
77
Total Floor Area
83 sq m
Current CO2 Emissions Level
2.8
Potential CO2 Emissions Level
2.1
CO2 per sq m per Year
34
Mains Gas Available
No
Habitable Rooms
4
Number of Extensions
0
Address
405 Testerton Walk
Date
14 Mar 2022
Current
Potential
71
77
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1930-1949
Certificate History
14 Mar 2022
71
77
4 Jan 2022
73
77
Total Floor Area
83 sq m
Current CO2 Emissions Level
2.8
Potential CO2 Emissions Level
2.1
CO2 per sq m per Year
34
Mains Gas Available
No
Habitable Rooms
4
Number of Extensions
0
Address
408 Testerton Walk
Date
12 Aug 2009
Current
Potential
64
71
Property Type
Maisonette
Built Form
Mid-Terrace
Constructed
1967-1975
Certificate History
12 Aug 2009
64
71
Total Floor Area
101 sq m
Current CO2 Emissions Level
4.7
Potential CO2 Emissions Level
3.8
CO2 per sq m per Year
47
Mains Gas Available
No
Habitable Rooms
4
Number of Extensions
0
Address
410 Testerton Walk
Date
8 Nov 2023
Current
Potential
71
77
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1930-1949
Certificate History
8 Nov 2023
71
77
Total Floor Area
71 sq m
Current CO2 Emissions Level
2.5
Potential CO2 Emissions Level
1.8
CO2 per sq m per Year
35
Mains Gas Available
No
Habitable Rooms
3
Number of Extensions
0
Address
411 Testerton Walk
Date
9 Nov 2022
Current
Potential
79
79
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1967-1975
Certificate History
9 Nov 2022
79
79
18 Oct 2022
74
77
4 Sep 2022
70
74
Total Floor Area
83 sq m
Current CO2 Emissions Level
1.7
Potential CO2 Emissions Level
1.7
CO2 per sq m per Year
21
Mains Gas Available
No
Habitable Rooms
4
Number of Extensions
0
Address
412 Testerton Walk
Date
3 Jul 2022
Current
Potential
61
73
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1967-1975
Certificate History
3 Jul 2022
61
73
3 Feb 2012
68
72
8 Feb 2010
61
69
Total Floor Area
88 sq m
Current CO2 Emissions Level
4.2
Potential CO2 Emissions Level
2.7
CO2 per sq m per Year
48
Mains Gas Available
No
Habitable Rooms
5
Number of Extensions
0
Address
413 Testerton Walk
Date
15 Aug 2011
Current
Potential
59
68
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1967-1975
Certificate History
15 Aug 2011
59
68
Total Floor Area
90 sq m
Current CO2 Emissions Level
4.8
Potential CO2 Emissions Level
3.7
CO2 per sq m per Year
53
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
414 Testerton Walk
Date
13 Feb 2020
Current
Potential
70
73
Property Type
Maisonette
Built Form
Mid-Terrace
Constructed
1967-1975
Certificate History
13 Feb 2020
70
73
6 Jul 2019
63
68
Total Floor Area
83 sq m
Current CO2 Emissions Level
2.9
Potential CO2 Emissions Level
2.6
CO2 per sq m per Year
35
Mains Gas Available
No
Habitable Rooms
4
Number of Extensions
1
Address
418 Testerton Walk
Date
11 Jan 2010
Current
Potential
75
80
Property Type
Flat
Built Form
Detached
Constructed
1950-1966
Certificate History
11 Jan 2010
75
80
Total Floor Area
78 sq m
Current CO2 Emissions Level
2.8
Potential CO2 Emissions Level
2.2
CO2 per sq m per Year
35
Mains Gas Available
No
Habitable Rooms
4
Number of Extensions
0
Address
420 Testerton Walk
Date
9 Nov 2023
Current
Potential
56
67
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1967-1975
Certificate History
9 Nov 2023
56
67
Total Floor Area
93 sq m
Current CO2 Emissions Level
5.1
Potential CO2 Emissions Level
3.6
CO2 per sq m per Year
55
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
2
Address
421 Testerton Walk
Date
7 Nov 2024
Current
Potential
74
79
Property Type
Flat
Built Form
Semi-Detached
Constructed
1950-1966
Certificate History
7 Nov 2024
74
79
10 Jan 2013
67
75
Total Floor Area
32 sq m
Current CO2 Emissions Level
1.3
Potential CO2 Emissions Level
0.9
CO2 per sq m per Year
40
Mains Gas Available
Yes
Habitable Rooms
1
Number of Extensions
0
Address
426 Testerton Walk
Date
20 Jan 2016
Current
Potential
62
76
Property Type
Maisonette
Built Form
Enclosed Mid-Terrace
Constructed
1967-1975
Certificate History
20 Jan 2016
62
76
Total Floor Area
91 sq m
Current CO2 Emissions Level
4.2
Potential CO2 Emissions Level
2.3
CO2 per sq m per Year
46
Mains Gas Available
No
Habitable Rooms
5
Number of Extensions
2
Address
433 TESTERTON WALK
Date
24 May 2021
Current
Potential
64
77
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1950-1966
Certificate History
24 May 2021
64
77
Total Floor Area
33 sq m
Current CO2 Emissions Level
0.6
Potential CO2 Emissions Level
0.4
CO2 per sq m per Year
19
Mains Gas Available
Yes
Habitable Rooms
1
Number of Extensions
0
Address
434 Testerton Walk
Date
29 Jan 2020
Current
Potential
58
71
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1967-1975
Certificate History
29 Jan 2020
58
71
1 Oct 2009
56
62
Total Floor Area
77 sq m
Current CO2 Emissions Level
4.2
Potential CO2 Emissions Level
2.7
CO2 per sq m per Year
54
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
436 Testerton Walk
Date
25 Mar 2020
Current
Potential
56
69
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1967-1975
Certificate History
25 Mar 2020
56
69
7 Jan 2020
66
77
Total Floor Area
33 sq m
Current CO2 Emissions Level
2.2
Potential CO2 Emissions Level
1.3
CO2 per sq m per Year
66
Mains Gas Available
No
Habitable Rooms
1
Number of Extensions
0
Address
438 Testerton Walk
Date
20 Jun 2024
Current
Potential
63
77
Property Type
Maisonette
Built Form
Mid-Terrace
Constructed
1950-1966
Certificate History
20 Jun 2024
63
77
6 Sep 2012
63
72
Total Floor Area
76 sq m
Current CO2 Emissions Level
3.5
Potential CO2 Emissions Level
1.9
CO2 per sq m per Year
46
Mains Gas Available
No
Habitable Rooms
3
Number of Extensions
0
Address
439 Testerton Walk
Date
5 Aug 2024
Current
Potential
70
78
Property Type
Flat
Built Form
Enclosed End-Terrace
Constructed
1967-1975
Certificate History
5 Aug 2024
70
78
19 Feb 2024
32
80
11 Jan 2024
63
74
1 Oct 2015
65
77
Total Floor Area
75 sq m
Current CO2 Emissions Level
2.6
Potential CO2 Emissions Level
1.7
CO2 per sq m per Year
35
Mains Gas Available
No
Habitable Rooms
3
Number of Extensions
0
Address
443 Testerton Walk
Date
21 May 2024
Current
Potential
64
78
Property Type
Maisonette
Built Form
Mid-Terrace
Constructed
1950-1966
Certificate History
21 May 2024
64
78
Total Floor Area
78 sq m
Current CO2 Emissions Level
3.5
Potential CO2 Emissions Level
1.9
CO2 per sq m per Year
45
Mains Gas Available
No
Habitable Rooms
3
Number of Extensions
0
Address
444 Testerton Walk
Date
20 Jan 2020
Current
Potential
56
69
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1967-1975
Certificate History
20 Jan 2020
56
69
10 Dec 2019
65
77
6 Jul 2019
63
77
Total Floor Area
33 sq m
Current CO2 Emissions Level
2.2
Potential CO2 Emissions Level
1.3
CO2 per sq m per Year
67
Mains Gas Available
Yes
Habitable Rooms
1
Number of Extensions
0
Address
445 Testerton Walk
Date
29 Apr 2020
Current
Potential
71
75
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1967-1975
Certificate History
29 Apr 2020
71
75
25 Mar 2020
44
84
Total Floor Area
69 sq m
Current CO2 Emissions Level
1.9
Potential CO2 Emissions Level
1.5
CO2 per sq m per Year
28
Mains Gas Available
No
Habitable Rooms
3
Number of Extensions
0
Address
446 Testerton Walk
Date
26 Feb 2020
Current
Potential
77
80
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1991-1995
Certificate History
26 Feb 2020
77
80
13 Jan 2020
72
78
Total Floor Area
46 sq m
Current CO2 Emissions Level
1.3
Potential CO2 Emissions Level
1.1
CO2 per sq m per Year
29
Mains Gas Available
No
Habitable Rooms
2
Number of Extensions
0
Address
448 Testerton Walk
Date
25 Apr 2019
Current
Potential
69
72
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1967-1975
Certificate History
25 Apr 2019
69
72
21 Aug 2016
74
80
Total Floor Area
33 sq m
Current CO2 Emissions Level
2.6
Potential CO2 Emissions Level
2.2
CO2 per sq m per Year
78
Mains Gas Available
No
Habitable Rooms
1
Number of Extensions
1
Address
449 Testerton Walk
Date
17 Nov 2021
Current
Potential
73
80
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1950-1966
Certificate History
17 Nov 2021
73
80
5 Sep 2021
68
76
Total Floor Area
38 sq m
Current CO2 Emissions Level
1.4
Potential CO2 Emissions Level
0.9
CO2 per sq m per Year
38
Mains Gas Available
No
Habitable Rooms
2
Number of Extensions
0
Address
450 Testerton Walk
Date
14 Mar 2022
Current
Potential
66
70
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1930-1949
Certificate History
14 Mar 2022
66
70
Total Floor Area
37 sq m
Current CO2 Emissions Level
2.5
Potential CO2 Emissions Level
2.3
CO2 per sq m per Year
68
Mains Gas Available
No
Habitable Rooms
2
Number of Extensions
0
Address
451 Testerton Walk
Date
4 May 2010
Current
Potential
65
69
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1967-1975
Certificate History
4 May 2010
65
69
Total Floor Area
33 sq m
Current CO2 Emissions Level
2.5
Potential CO2 Emissions Level
2.2
CO2 per sq m per Year
77
Mains Gas Available
Yes
Habitable Rooms
1
Number of Extensions
0
Address
452 Testerton Walk
Date
11 Sep 2023
Current
Potential
71
80
Property Type
Flat
Built Form
Enclosed Mid-Terrace
Constructed
1976-1982
Certificate History
11 Sep 2023
71
80
Total Floor Area
77 sq m
Current CO2 Emissions Level
2.7
Potential CO2 Emissions Level
1.6
CO2 per sq m per Year
34
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
454 Testerton Walk
Date
3 Sep 2024
Current
Potential
62
74
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1967-1975
Certificate History
3 Sep 2024
62
74
20 Oct 2022
13
80
Total Floor Area
32 sq m
Current CO2 Emissions Level
2.2
Potential CO2 Emissions Level
1.3
CO2 per sq m per Year
68
Mains Gas Available
No
Habitable Rooms
1
Number of Extensions
0
Address
455 Testerton Walk
Date
30 Oct 2013
Current
Potential
67
78
Property Type
Maisonette
Built Form
Enclosed Mid-Terrace
Constructed
1967-1975
Certificate History
30 Oct 2013
67
78
Total Floor Area
77 sq m
Current CO2 Emissions Level
3.2
Potential CO2 Emissions Level
1.8
CO2 per sq m per Year
41
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
459 Testerton Walk
Date
11 Jan 2023
Current
Potential
60
75
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1967-1975
Certificate History
11 Jan 2023
60
75
26 Jul 2016
61
76
Total Floor Area
34 sq m
Current CO2 Emissions Level
2.3
Potential CO2 Emissions Level
1.2
CO2 per sq m per Year
69
Mains Gas Available
Yes
Habitable Rooms
1
Number of Extensions
1
Address
461 Testerton Walk
Date
9 Aug 2023
Current
Potential
75
82
Property Type
Flat
Built Form
Enclosed Mid-Terrace
Constructed
1976-1982
Certificate History
9 Aug 2023
75
82
26 Mar 2014
66
78
Total Floor Area
75 sq m
Current CO2 Emissions Level
2.1
Potential CO2 Emissions Level
1.4
CO2 per sq m per Year
28
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
FLAT 408, TESTERTON WALK
Date
27 Feb 2021
Current
Potential
57
70
Property Type
Maisonette
Built Form
Mid-Terrace
Constructed
1976-1982
Certificate History
27 Feb 2021
57
70
Total Floor Area
88 sq m
Current CO2 Emissions Level
4.9
Potential CO2 Emissions Level
3.0
CO2 per sq m per Year
55
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
FLAT 423, TESTERTON WALK
Date
30 Mar 2021
Current
Potential
64
75
Property Type
Flat
Built Form
Enclosed End-Terrace
Constructed
1967-1975
Certificate History
30 Mar 2021
64
75
Total Floor Area
47 sq m
Current CO2 Emissions Level
2.5
Potential CO2 Emissions Level
1.5
CO2 per sq m per Year
52
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
1
Address
FLAT 432, TESTERTON WALK
Date
22 Apr 2021
Current
Potential
70
74
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1950-1966
Certificate History
22 Apr 2021
70
74
Total Floor Area
45 sq m
Current CO2 Emissions Level
1.8
Potential CO2 Emissions Level
1.5
CO2 per sq m per Year
41
Mains Gas Available
No
Habitable Rooms
2
Number of Extensions
0
Address
FLAT 433, TESTERTON WALK
Date
21 Jan 2021
Current
Potential
12
79
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1950-1966
Certificate History
21 Jan 2021
12
79
Total Floor Area
34 sq m
Current CO2 Emissions Level
4.9
Potential CO2 Emissions Level
1.8
CO2 per sq m per Year
146
Mains Gas Available
No
Habitable Rooms
1
Number of Extensions
0
Address
FLAT 448, TESTERTON WALK
Date
11 Mar 2021
Current
Potential
87
89
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1930-1949
Certificate History
11 Mar 2021
87
89
Total Floor Area
338 sq m
Current CO2 Emissions Level
3.6
Potential CO2 Emissions Level
2.8
CO2 per sq m per Year
11
Mains Gas Available
No
Habitable Rooms
1
Number of Extensions
0
Address
FLAT 453, TESTERTON WALK
Date
11 Mar 2021
Current
Potential
64
77
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1930-1949
Certificate History
11 Mar 2021
64
77
Total Floor Area
78 sq m
Current CO2 Emissions Level
3.6
Potential CO2 Emissions Level
1.9
CO2 per sq m per Year
46
Mains Gas Available
No
Habitable Rooms
3
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.
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Contains Royal Mail data © Royal Mail copyright and Database right 2025.