PROPERTY ENERGY EFFICIENCY CERTIFICATE DETAILS
Onslow Gardens, LONDON, E18 1NA
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 Onslow Gardens, E18 1NA 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 Onslow Gardens, LONDON, E18 1NA
Period Covered:
2008 - 31 January 2025
Address
Inspection Date
Current
Potential
Property Type
Built Form
Constructed
Address
101 Onslow Gardens
Date
8 May 2014
Current
Potential
66
78
Property Type
Flat
Built Form
Semi-Detached
Constructed
1930-1949
Certificate History
8 May 2014
66
78
Total Floor Area
47 sq m
Current CO2 Emissions Level
2.1
Potential CO2 Emissions Level
1.2
CO2 per sq m per Year
45
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
103 Onslow Gardens
Date
15 Sep 2019
Current
Potential
67
77
Property Type
Maisonette
Built Form
Semi-Detached
Constructed
1930-1949
Certificate History
15 Sep 2019
67
77
22 Sep 2009
60
73
Total Floor Area
44 sq m
Current CO2 Emissions Level
2.0
Potential CO2 Emissions Level
1.2
CO2 per sq m per Year
44
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
105 Onslow Gardens
Date
2 Apr 2016
Current
Potential
65
77
Property Type
Flat
Built Form
Semi-Detached
Constructed
1930-1949
Certificate History
2 Apr 2016
65
77
1 Dec 2009
61
68
Total Floor Area
45 sq m
Current CO2 Emissions Level
2.2
Potential CO2 Emissions Level
1.2
CO2 per sq m per Year
49
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
105a Onslow Gardens
Date
12 Mar 2013
Current
Potential
69
83
Property Type
House
Built Form
Detached
Constructed
2003-2006
Certificate History
12 Mar 2013
69
83
14 Jan 2011
71
79
Total Floor Area
127 sq m
Current CO2 Emissions Level
4.1
Potential CO2 Emissions Level
2.1
CO2 per sq m per Year
32
Mains Gas Available
Yes
Habitable Rooms
7
Number of Extensions
0
Address
109 ONSLOW GARDENS, SOUTH WOODFORD
Date
8 Oct 2020
Current
Potential
58
65
Property Type
Maisonette
Built Form
Semi-Detached
Constructed
1930-1949
Certificate History
8 Oct 2020
58
65
Total Floor Area
58 sq m
Current CO2 Emissions Level
3.3
Potential CO2 Emissions Level
2.6
CO2 per sq m per Year
57
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
111 Onslow Gardens
Date
27 Mar 2009
Current
Potential
66
70
Property Type
Flat
Built Form
Semi-Detached
Constructed
1950-1966
Certificate History
27 Mar 2009
66
70
Total Floor Area
51 sq m
Current CO2 Emissions Level
2.8
Potential CO2 Emissions Level
2.5
CO2 per sq m per Year
56
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
113 Onslow Gardens
Date
12 Apr 2020
Current
Potential
56
66
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
12 Apr 2020
56
66
21 Jan 2009
64
72
Total Floor Area
62 sq m
Current CO2 Emissions Level
3.6
Potential CO2 Emissions Level
2.7
CO2 per sq m per Year
58
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
115 Onslow Gardens
Date
2 Sep 2019
Current
Potential
65
78
Property Type
Maisonette
Built Form
Semi-Detached
Constructed
1930-1949
Certificate History
2 Sep 2019
65
78
Total Floor Area
54 sq m
Current CO2 Emissions Level
2.4
Potential CO2 Emissions Level
1.3
CO2 per sq m per Year
45
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
117 Onslow Gardens
Date
7 Nov 2019
Current
Potential
64
78
Property Type
Maisonette
Built Form
Semi-Detached
Constructed
1930-1949
Certificate History
7 Nov 2019
64
78
1 Jul 2009
61
72
Total Floor Area
58 sq m
Current CO2 Emissions Level
2.7
Potential CO2 Emissions Level
1.4
CO2 per sq m per Year
47
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
119 Onslow Gardens
Date
4 Feb 2014
Current
Potential
64
78
Property Type
Maisonette
Built Form
Semi-Detached
Constructed
1950-1966
Certificate History
4 Feb 2014
64
78
Total Floor Area
49 sq m
Current CO2 Emissions Level
2.4
Potential CO2 Emissions Level
1.2
CO2 per sq m per Year
48
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
121 Onslow Gardens
Date
22 Dec 2015
Current
Potential
49
79
Property Type
Flat
Built Form
Semi-Detached
Constructed
1900-1929
Certificate History
22 Dec 2015
49
79
25 Dec 2008
57
82
Total Floor Area
64 sq m
Current CO2 Emissions Level
4.4
Potential CO2 Emissions Level
1.4
CO2 per sq m per Year
69
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
123 Onslow Gardens
Date
20 Apr 2020
Current
Potential
70
78
Property Type
Maisonette
Built Form
Semi-Detached
Constructed
1900-1929
Certificate History
20 Apr 2020
70
78
26 Mar 2009
63
68
Total Floor Area
58 sq m
Current CO2 Emissions Level
2.2
Potential CO2 Emissions Level
1.4
CO2 per sq m per Year
37
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
125 Onslow Gardens
Date
29 Nov 2023
Current
Potential
69
77
Property Type
Flat
Built Form
Semi-Detached
Constructed
1900-1929
Certificate History
29 Nov 2023
69
77
17 Nov 2013
47
78
6 Sep 2012
49
78
Total Floor Area
56 sq m
Current CO2 Emissions Level
2.1
Potential CO2 Emissions Level
1.4
CO2 per sq m per Year
38
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
129 Onslow Gardens
Date
6 Dec 2018
Current
Potential
48
67
Property Type
Maisonette
Built Form
Semi-Detached
Constructed
1930-1949
Certificate History
6 Dec 2018
48
67
Total Floor Area
56 sq m
Current CO2 Emissions Level
4.1
Potential CO2 Emissions Level
2.3
CO2 per sq m per Year
73
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
131 Onslow Gardens
Date
21 Sep 2010
Current
Potential
46
57
Property Type
Maisonette
Built Form
Detached
Constructed
1930-1949
Certificate History
21 Sep 2010
46
57
Total Floor Area
48 sq m
Current CO2 Emissions Level
4.5
Potential CO2 Emissions Level
3.6
CO2 per sq m per Year
94
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
133 Onslow Gardens
Date
20 Mar 2023
Current
Potential
73
89
Property Type
House
Built Form
Semi-Detached
Constructed
1983-1990
Certificate History
20 Mar 2023
73
89
9 Aug 2012
45
76
Total Floor Area
52 sq m
Current CO2 Emissions Level
1.7
Potential CO2 Emissions Level
0.5
CO2 per sq m per Year
33
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
135 Onslow Gardens
Date
18 Jun 2020
Current
Potential
69
77
Property Type
Flat
Built Form
Semi-Detached
Constructed
1930-1949
Certificate History
18 Jun 2020
69
77
18 Oct 2009
69
71
27 Mar 2009
60
62
Total Floor Area
48 sq m
Current CO2 Emissions Level
2.0
Potential CO2 Emissions Level
1.2
CO2 per sq m per Year
41
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
141 Onslow Gardens
Date
5 Mar 2019
Current
Potential
63
77
Property Type
Flat
Built Form
Semi-Detached
Constructed
1930-1949
Certificate History
5 Mar 2019
63
77
Total Floor Area
53 sq m
Current CO2 Emissions Level
2.7
Potential CO2 Emissions Level
1.4
CO2 per sq m per Year
50
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
143 Onslow Gardens
Date
4 Oct 2018
Current
Potential
68
77
Property Type
Flat
Built Form
End-Terrace
Constructed
1930-1949
Certificate History
4 Oct 2018
68
77
Total Floor Area
51 sq m
Current CO2 Emissions Level
2.1
Potential CO2 Emissions Level
1.4
CO2 per sq m per Year
42
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
145 Onslow Gardens
Date
13 Sep 2020
Current
Potential
70
77
Property Type
Flat
Built Form
Semi-Detached
Constructed
1930-1949
Certificate History
13 Sep 2020
70
77
2 Apr 2018
70
79
27 Oct 2014
41
78
Total Floor Area
58 sq m
Current CO2 Emissions Level
2.1
Potential CO2 Emissions Level
1.4
CO2 per sq m per Year
37
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
147 Onslow Gardens
Date
29 Jan 2011
Current
Potential
67
69
Property Type
Flat
Built Form
Semi-Detached
Constructed
1950-1966
Certificate History
29 Jan 2011
67
69
25 Jan 2010
60
71
Total Floor Area
54 sq m
Current CO2 Emissions Level
2.7
Potential CO2 Emissions Level
2.7
CO2 per sq m per Year
51
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
1
Address
151 Onslow Gardens
Date
2 Mar 2017
Current
Potential
64
72
Property Type
Flat
Built Form
Semi-Detached
Constructed
1930-1949
Certificate History
2 Mar 2017
64
72
Total Floor Area
27 sq m
Current CO2 Emissions Level
1.7
Potential CO2 Emissions Level
1.1
CO2 per sq m per Year
64
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
157 Onslow Gardens
Date
3 Mar 2020
Current
Potential
72
79
Property Type
Flat
Built Form
Semi-Detached
Constructed
1967-1975
Certificate History
3 Mar 2020
72
79
Total Floor Area
50 sq m
Current CO2 Emissions Level
1.7
Potential CO2 Emissions Level
1.1
CO2 per sq m per Year
35
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
159 Onslow Gardens
Date
8 Sep 2022
Current
Potential
68
77
Property Type
Flat
Built Form
Semi-Detached
Constructed
1930-1949
Certificate History
8 Sep 2022
68
77
26 Nov 2010
64
64
Total Floor Area
45 sq m
Current CO2 Emissions Level
2.0
Potential CO2 Emissions Level
1.2
CO2 per sq m per Year
43
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
79 Onslow Gardens
Date
20 Dec 2010
Current
Potential
71
72
Property Type
Flat
Built Form
Semi-Detached
Constructed
1900-1929
Certificate History
20 Dec 2010
71
72
Total Floor Area
40 sq m
Current CO2 Emissions Level
2.1
Potential CO2 Emissions Level
2.1
CO2 per sq m per Year
53
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
83 Onslow Gardens
Date
17 Aug 2009
Current
Potential
71
77
Property Type
Flat
Built Form
Semi-Detached
Constructed
1930-1949
Certificate History
17 Aug 2009
71
77
Total Floor Area
38 sq m
Current CO2 Emissions Level
2.0
Potential CO2 Emissions Level
1.6
CO2 per sq m per Year
52
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
85 Onslow Gardens
Date
12 Sep 2020
Current
Potential
55
78
Property Type
Flat
Built Form
Semi-Detached
Constructed
1930-1949
Certificate History
12 Sep 2020
55
78
16 Apr 2010
51
62
Total Floor Area
48 sq m
Current CO2 Emissions Level
3.1
Potential CO2 Emissions Level
1.2
CO2 per sq m per Year
65
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
91 Onslow Gardens
Date
12 Jan 2022
Current
Potential
66
76
Property Type
Flat
Built Form
Semi-Detached
Constructed
1930-1949
Certificate History
12 Jan 2022
66
76
16 Sep 2010
61
70
Total Floor Area
49 sq m
Current CO2 Emissions Level
2.3
Potential CO2 Emissions Level
1.4
CO2 per sq m per Year
46
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
93 Onslow Gardens
Date
14 Apr 2011
Current
Potential
67
75
Property Type
Flat
Built Form
Semi-Detached
Constructed
1930-1949
Certificate History
14 Apr 2011
67
75
Total Floor Area
47 sq m
Current CO2 Emissions Level
2.5
Potential CO2 Emissions Level
1.9
CO2 per sq m per Year
60
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
95 Onslow Gardens
Date
9 Mar 2024
Current
Potential
63
76
Property Type
Flat
Built Form
Semi-Detached
Constructed
1930-1949
Certificate History
9 Mar 2024
63
76
Total Floor Area
41 sq m
Current CO2 Emissions Level
2.2
Potential CO2 Emissions Level
1.2
CO2 per sq m per Year
54
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
97 Onslow Gardens
Date
31 Oct 2022
Current
Potential
75
78
Property Type
Flat
Built Form
Semi-Detached
Constructed
1930-1949
Certificate History
31 Oct 2022
75
78
23 Sep 2012
40
71
Total Floor Area
42 sq m
Current CO2 Emissions Level
1.3
Potential CO2 Emissions Level
1.0
CO2 per sq m per Year
32
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
99 Onslow Gardens
Date
31 May 2010
Current
Potential
63
69
Property Type
Flat
Built Form
Semi-Detached
Constructed
1950-1966
Certificate History
31 May 2010
63
69
Total Floor Area
51 sq m
Current CO2 Emissions Level
2.9
Potential CO2 Emissions Level
2.4
CO2 per sq m per Year
63
Mains Gas Available
Yes
Habitable Rooms
2
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.