PROPERTY ENERGY EFFICIENCY CERTIFICATE DETAILS
Onslow Avenue, RICHMOND, TW10 6QB
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 Avenue, TW10 6QB 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 Avenue, RICHMOND, TW10 6QB
Period Covered:
2008 - 31 October 2024
Address
Inspection Date
Current
Potential
Property Type
Built Form
Constructed
Address
1 Onslow Avenue
Date
4 Aug 2022
Current
Potential
69
81
Property Type
House
Built Form
End-Terrace
Constructed
1900-1929
Certificate History
4 Aug 2022
69
81
7 May 2019
46
74
Total Floor Area
217 sq m
Current CO2 Emissions Level
6.4
Potential CO2 Emissions Level
3.8
CO2 per sq m per Year
29
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
1
Address
10 Onslow Avenue
Date
22 Mar 2019
Current
Potential
70
82
Property Type
House
Built Form
Mid-Terrace
Constructed
1930-1949
Certificate History
22 Mar 2019
70
82
Total Floor Area
200 sq m
Current CO2 Emissions Level
5.7
Potential CO2 Emissions Level
3.3
CO2 per sq m per Year
28
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
2
Address
12 Onslow Avenue
Date
11 Jun 2014
Current
Potential
43
69
Property Type
House
Built Form
Mid-Terrace
Constructed
before 1900
Certificate History
11 Jun 2014
43
69
16 Sep 2010
27
39
Total Floor Area
200 sq m
Current CO2 Emissions Level
12.0
Potential CO2 Emissions Level
6.4
CO2 per sq m per Year
59
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
3
Address
14 Onslow Avenue
Date
12 Jul 2022
Current
Potential
60
74
Property Type
House
Built Form
Mid-Terrace
Constructed
before 1900
Certificate History
12 Jul 2022
60
74
Total Floor Area
190 sq m
Current CO2 Emissions Level
7.3
Potential CO2 Emissions Level
4.6
CO2 per sq m per Year
39
Mains Gas Available
Yes
Habitable Rooms
7
Number of Extensions
1
Address
18 Onslow Avenue
Date
25 Mar 2010
Current
Potential
51
64
Property Type
House
Built Form
Mid-Terrace
Constructed
before 1900
Certificate History
25 Mar 2010
51
64
Total Floor Area
189 sq m
Current CO2 Emissions Level
9.9
Potential CO2 Emissions Level
7.4
CO2 per sq m per Year
52
Mains Gas Available
Yes
Habitable Rooms
7
Number of Extensions
0
Address
2 26 Onslow Avenue
Date
21 Dec 2023
Current
Potential
63
75
Property Type
Flat
Built Form
Mid-Terrace
Constructed
before 1900
Certificate History
21 Dec 2023
63
75
Total Floor Area
56 sq m
Current CO2 Emissions Level
2.7
Potential CO2 Emissions Level
1.6
CO2 per sq m per Year
48
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
20 Onslow Avenue
Date
18 May 2022
Current
Potential
59
73
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
18 May 2022
59
73
24 May 2011
51
53
Total Floor Area
188 sq m
Current CO2 Emissions Level
7.3
Potential CO2 Emissions Level
4.5
CO2 per sq m per Year
39
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
1
Address
22 Onslow Avenue
Date
30 Jan 2023
Current
Potential
62
79
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
30 Jan 2023
62
79
11 Jan 2013
50
70
Total Floor Area
189 sq m
Current CO2 Emissions Level
7.9
Potential CO2 Emissions Level
4.2
CO2 per sq m per Year
42
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
1
Address
24 Onslow Avenue
Date
9 Feb 2023
Current
Potential
63
81
Property Type
House
Built Form
Mid-Terrace
Constructed
before 1900
Certificate History
9 Feb 2023
63
81
30 Jan 2013
61
82
Total Floor Area
185 sq m
Current CO2 Emissions Level
6.8
Potential CO2 Emissions Level
3.3
CO2 per sq m per Year
36
Mains Gas Available
Yes
Habitable Rooms
10
Number of Extensions
4
Address
28 Onslow Avenue
Date
24 Sep 2008
Current
Potential
66
69
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
24 Sep 2008
66
69
Total Floor Area
175 sq m
Current CO2 Emissions Level
6.2
Potential CO2 Emissions Level
6.0
CO2 per sq m per Year
35
Mains Gas Available
Yes
Habitable Rooms
7
Number of Extensions
0
Address
30c Onslow Avenue
Date
15 Sep 2009
Current
Potential
57
64
Property Type
Flat
Built Form
Semi-Detached
Constructed
1900-1929
Certificate History
15 Sep 2009
57
64
Total Floor Area
69 sq m
Current CO2 Emissions Level
4.4
Potential CO2 Emissions Level
3.7
CO2 per sq m per Year
63
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
4 Onslow Avenue
Date
21 Dec 2010
Current
Potential
43
47
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
21 Dec 2010
43
47
Total Floor Area
148 sq m
Current CO2 Emissions Level
12.0
Potential CO2 Emissions Level
12.0
CO2 per sq m per Year
62
Mains Gas Available
Yes
Habitable Rooms
8
Number of Extensions
1
Address
5 Onslow Avenue
Date
6 Sep 2009
Current
Potential
65
70
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
6 Sep 2009
65
70
Total Floor Area
212 sq m
Current CO2 Emissions Level
7.5
Potential CO2 Emissions Level
6.5
CO2 per sq m per Year
35
Mains Gas Available
Yes
Habitable Rooms
7
Number of Extensions
1
Address
6 Onslow Avenue
Date
28 Jul 2022
Current
Potential
68
86
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
28 Jul 2022
68
86
2 Aug 2012
70
87
Total Floor Area
180 sq m
Current CO2 Emissions Level
5.6
Potential CO2 Emissions Level
2.1
CO2 per sq m per Year
31
Mains Gas Available
Yes
Habitable Rooms
8
Number of Extensions
1
Address
Flat 1, 16 Onslow Avenue
Date
14 Nov 2023
Current
Potential
72
77
Property Type
Flat
Built Form
Mid-Terrace
Constructed
before 1900
Certificate History
14 Nov 2023
72
77
14 Feb 2013
72
78
21 Feb 2009
70
75
Total Floor Area
79 sq m
Current CO2 Emissions Level
2.4
Potential CO2 Emissions Level
1.9
CO2 per sq m per Year
31
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
1
Address
Flat 1, 2 Onslow Avenue
Date
7 Aug 2022
Current
Potential
62
72
Property Type
Flat
Built Form
Semi-Detached
Constructed
before 1900
Certificate History
7 Aug 2022
62
72
2 Aug 2012
59
73
Total Floor Area
82 sq m
Current CO2 Emissions Level
3.6
Potential CO2 Emissions Level
2.4
CO2 per sq m per Year
44
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
1
Address
Flat 2, 16 Onslow Avenue
Date
7 Oct 2012
Current
Potential
65
81
Property Type
Flat
Built Form
Enclosed Mid-Terrace
Constructed
before 1900
Certificate History
7 Oct 2012
65
81
Total Floor Area
47 sq m
Current CO2 Emissions Level
2.2
Potential CO2 Emissions Level
0.9
CO2 per sq m per Year
47
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
FLAT 2, 16 ONSLOW AVENUE
Date
16 May 2021
Current
Potential
72
78
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
16 May 2021
72
78
Total Floor Area
48 sq m
Current CO2 Emissions Level
1.6
Potential CO2 Emissions Level
1.1
CO2 per sq m per Year
35
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
Flat 2, 2 Onslow Avenue
Date
22 Mar 2016
Current
Potential
68
80
Property Type
Flat
Built Form
Semi-Detached
Constructed
before 1900
Certificate History
22 Mar 2016
68
80
Total Floor Area
44 sq m
Current CO2 Emissions Level
1.8
Potential CO2 Emissions Level
0.9
CO2 per sq m per Year
42
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
Flat 2, 26 Onslow Avenue
Date
19 Dec 2013
Current
Potential
56
79
Property Type
Flat
Built Form
Mid-Terrace
Constructed
before 1900
Certificate History
19 Dec 2013
56
79
Total Floor Area
47 sq m
Current CO2 Emissions Level
3.0
Potential CO2 Emissions Level
1.0
CO2 per sq m per Year
64
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
Flat 2, 30 Onslow Avenue
Date
21 Sep 2016
Current
Potential
66
78
Property Type
Flat
Built Form
End-Terrace
Constructed
1900-1929
Certificate History
21 Sep 2016
66
78
Total Floor Area
62 sq m
Current CO2 Emissions Level
2.6
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
Flat 3, 16 Onslow Avenue
Date
28 Jul 2022
Current
Potential
74
76
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
28 Jul 2022
74
76
30 May 2012
74
80
Total Floor Area
63 sq m
Current CO2 Emissions Level
1.9
Potential CO2 Emissions Level
1.6
CO2 per sq m per Year
30
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
Flat 3, 26 Onslow Avenue
Date
28 Feb 2018
Current
Potential
49
53
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
28 Feb 2018
49
53
19 Dec 2013
37
53
Total Floor Area
73 sq m
Current CO2 Emissions Level
4.7
Potential CO2 Emissions Level
4.3
CO2 per sq m per Year
63
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
FLAT 3, 30 ONSLOW AVENUE
Date
22 Jul 2021
Current
Potential
51
59
Property Type
Flat
Built Form
End-Terrace
Constructed
1900-1929
Certificate History
22 Jul 2021
51
59
Total Floor Area
73 sq m
Current CO2 Emissions Level
4.6
Potential CO2 Emissions Level
3.7
CO2 per sq m per Year
63
Mains Gas Available
Yes
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.
Contains public sector information licensed under the Open Government Licence v3.0.
Contains Royal Mail data © Royal Mail copyright and Database right 2025.