PROPERTY ENERGY EFFICIENCY CERTIFICATE DETAILS
Westerham Avenue, LONDON, N9 9BU
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 Westerham Avenue, N9 9BU 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 Westerham Avenue, LONDON, N9 9BU
Period Covered:
2008 - 31 October 2024
Address
Inspection Date
Current
Potential
Property Type
Built Form
Constructed
Address
10a Westerham Avenue
Date
11 Jul 2023
Current
Potential
65
74
Property Type
Flat
Built Form
Semi-Detached
Constructed
1900-1929
Certificate History
11 Jul 2023
65
74
29 May 2012
65
76
Total Floor Area
70 sq m
Current CO2 Emissions Level
3.0
Potential CO2 Emissions Level
2.1
CO2 per sq m per Year
43
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
10b Westerham Avenue
Date
23 Mar 2021
Current
Potential
58
78
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
23 Mar 2021
58
78
15 Dec 2010
82
82
Total Floor Area
68 sq m
Current CO2 Emissions Level
3.7
Potential CO2 Emissions Level
1.6
CO2 per sq m per Year
54
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
12a Westerham Avenue
Date
1 Nov 2018
Current
Potential
70
75
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
1 Nov 2018
70
75
21 Oct 2008
1
3
Total Floor Area
67 sq m
Current CO2 Emissions Level
2.3
Potential CO2 Emissions Level
1.8
CO2 per sq m per Year
35
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
12b Westerham Avenue
Date
1 Mar 2011
Current
Potential
83
84
Property Type
Flat
Built Form
End-Terrace
Constructed
2007 onwards
Certificate History
1 Mar 2011
83
84
Total Floor Area
68 sq m
Current CO2 Emissions Level
1.5
Potential CO2 Emissions Level
1.5
CO2 per sq m per Year
22
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
12B WESTERHAM AVENUE, EDMONTON
Date
19 Feb 2021
Current
Potential
79
79
Property Type
Flat
Built Form
Semi-Detached
Constructed
2007-2011
Certificate History
19 Feb 2021
79
79
Total Floor Area
67 sq m
Current CO2 Emissions Level
1.4
Potential CO2 Emissions Level
1.4
CO2 per sq m per Year
21
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
14a Westerham Avenue
Date
23 Apr 2019
Current
Potential
54
73
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1930-1949
Certificate History
23 Apr 2019
54
73
Total Floor Area
70 sq m
Current CO2 Emissions Level
4.2
Potential CO2 Emissions Level
2.2
CO2 per sq m per Year
59
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
16a Westerham Avenue
Date
17 Nov 2015
Current
Potential
51
73
Property Type
Flat
Built Form
End-Terrace
Constructed
1930-1949
Certificate History
17 Nov 2015
51
73
Total Floor Area
71 sq m
Current CO2 Emissions Level
4.5
Potential CO2 Emissions Level
2.1
CO2 per sq m per Year
64
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
1
Address
18a Westerham Avenue
Date
22 Mar 2011
Current
Potential
71
74
Property Type
Maisonette
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
22 Mar 2011
71
74
14 Sep 2010
76
78
Total Floor Area
70 sq m
Current CO2 Emissions Level
2.8
Potential CO2 Emissions Level
2.6
CO2 per sq m per Year
40
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
2 Westerham Avenue
Date
31 Mar 2009
Current
Potential
56
59
Property Type
House
Built Form
Semi-Detached
Constructed
1930-1949
Certificate History
31 Mar 2009
56
59
Total Floor Area
109 sq m
Current CO2 Emissions Level
5.9
Potential CO2 Emissions Level
5.7
CO2 per sq m per Year
54
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
1
Address
20a Westerham Avenue
Date
4 Mar 2022
Current
Potential
70
76
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
4 Mar 2022
70
76
Total Floor Area
68 sq m
Current CO2 Emissions Level
2.3
Potential CO2 Emissions Level
1.8
CO2 per sq m per Year
34
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
20b Westerham Avenue
Date
11 Aug 2009
Current
Potential
56
65
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1930-1949
Certificate History
11 Aug 2009
56
65
Total Floor Area
86 sq m
Current CO2 Emissions Level
4.9
Potential CO2 Emissions Level
4.1
CO2 per sq m per Year
57
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
22a Westerham Avenue
Date
5 Jul 2019
Current
Potential
63
75
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1930-1949
Certificate History
5 Jul 2019
63
75
Total Floor Area
71 sq m
Current CO2 Emissions Level
3.1
Potential CO2 Emissions Level
1.9
CO2 per sq m per Year
44
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
22b Westerham Avenue
Date
18 Jul 2019
Current
Potential
52
77
Property Type
Maisonette
Built Form
Semi-Detached
Constructed
1930-1949
Certificate History
18 Jul 2019
52
77
Total Floor Area
65 sq m
Current CO2 Emissions Level
4.1
Potential CO2 Emissions Level
1.6
CO2 per sq m per Year
63
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
24b Westerham Avenue
Date
14 Dec 2021
Current
Potential
56
74
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1930-1949
Certificate History
14 Dec 2021
56
74
Total Floor Area
71 sq m
Current CO2 Emissions Level
4.0
Potential CO2 Emissions Level
2.0
CO2 per sq m per Year
56
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
26b Westerham Avenue
Date
5 Jul 2019
Current
Potential
70
75
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1930-1949
Certificate History
5 Jul 2019
70
75
Total Floor Area
69 sq m
Current CO2 Emissions Level
2.4
Potential CO2 Emissions Level
1.9
CO2 per sq m per Year
35
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
26c Westerham Avenue
Date
5 Jul 2019
Current
Potential
54
75
Property Type
Maisonette
Built Form
End-Terrace
Constructed
1930-1949
Certificate History
5 Jul 2019
54
75
Total Floor Area
66 sq m
Current CO2 Emissions Level
3.9
Potential CO2 Emissions Level
1.8
CO2 per sq m per Year
60
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
28b Westerham Avenue
Date
22 Sep 2015
Current
Potential
74
80
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1930-1949
Certificate History
22 Sep 2015
74
80
Total Floor Area
55 sq m
Current CO2 Emissions Level
1.6
Potential CO2 Emissions Level
1.1
CO2 per sq m per Year
29
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
1
Address
28c Westerham Avenue
Date
6 Dec 2014
Current
Potential
79
79
Property Type
Flat
Built Form
Mid-Terrace
Constructed
2007 onwards
Certificate History
6 Dec 2014
79
79
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
Yes
Habitable Rooms
3
Number of Extensions
0
Address
30a Westerham Avenue
Date
5 Jul 2019
Current
Potential
66
73
Property Type
Maisonette
Built Form
End-Terrace
Constructed
1930-1949
Certificate History
5 Jul 2019
66
73
18 Feb 2009
68
73
Total Floor Area
72 sq m
Current CO2 Emissions Level
2.9
Potential CO2 Emissions Level
2.1
CO2 per sq m per Year
41
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
30c Westerham Avenue
Date
5 Jul 2019
Current
Potential
44
78
Property Type
Maisonette
Built Form
End-Terrace
Constructed
1930-1949
Certificate History
5 Jul 2019
44
78
Total Floor Area
75 sq m
Current CO2 Emissions Level
5.4
Potential CO2 Emissions Level
1.7
CO2 per sq m per Year
72
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
4 Westerham Avenue
Date
12 Jul 2023
Current
Potential
58
81
Property Type
House
Built Form
Semi-Detached
Constructed
1930-1949
Certificate History
12 Jul 2023
58
81
16 Feb 2014
35
70
Total Floor Area
99 sq m
Current CO2 Emissions Level
4.3
Potential CO2 Emissions Level
1.7
CO2 per sq m per Year
44
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
2
Address
8a Westerham Avenue
Date
24 Mar 2021
Current
Potential
40
74
Property Type
Flat
Built Form
Semi-Detached
Constructed
1900-1929
Certificate History
24 Mar 2021
40
74
Total Floor Area
49 sq m
Current CO2 Emissions Level
6.0
Potential CO2 Emissions Level
2.2
CO2 per sq m per Year
122
Mains Gas Available
No
Habitable Rooms
2
Number of Extensions
0
Address
8b Westerham Avenue
Date
23 Mar 2021
Current
Potential
42
67
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
23 Mar 2021
42
67
Total Floor Area
89 sq m
Current CO2 Emissions Level
7.6
Potential CO2 Emissions Level
4.0
CO2 per sq m per Year
85
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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