PROPERTY ENERGY EFFICIENCY CERTIFICATE DETAILS
Onslow Avenue, RICHMOND, TW10 6QD
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 6QD 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 6QD
Period Covered:
2008 - 31 October 2024
Address
Inspection Date
Current
Potential
Property Type
Built Form
Constructed
Address
1 Onslow Avenue Mansions, Onslow Avenue
Date
23 Nov 2023
Current
Potential
59
75
Property Type
Flat
Built Form
End-Terrace
Constructed
1900-1929
Certificate History
23 Nov 2023
59
75
27 Jul 2011
57
63
Total Floor Area
71 sq m
Current CO2 Emissions Level
4.1
Potential CO2 Emissions Level
2.1
CO2 per sq m per Year
57
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
10 Onslow Avenue Mansions, Onslow Avenue
Date
25 Oct 2010
Current
Potential
54
65
Property Type
Flat
Built Form
Detached
Constructed
1900-1929
Certificate History
25 Oct 2010
54
65
Total Floor Area
92 sq m
Current CO2 Emissions Level
5.6
Potential CO2 Emissions Level
4.3
CO2 per sq m per Year
61
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
10 ONSLOW AVENUE MANSIONS, ONSLOW AVENUE
Date
22 Apr 2021
Current
Potential
66
77
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
22 Apr 2021
66
77
Total Floor Area
92 sq m
Current CO2 Emissions Level
3.5
Potential CO2 Emissions Level
2.0
CO2 per sq m per Year
38
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
11 Onslow Avenue Mansions, Onslow Avenue
Date
9 Apr 2019
Current
Potential
60
80
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
9 Apr 2019
60
80
1 Oct 2008
66
73
Total Floor Area
97 sq m
Current CO2 Emissions Level
4.3
Potential CO2 Emissions Level
1.8
CO2 per sq m per Year
44
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
13 Onslow Avenue Mansions, Onslow Avenue
Date
20 Jan 2017
Current
Potential
62
77
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
20 Jan 2017
62
77
Total Floor Area
92 sq m
Current CO2 Emissions Level
3.9
Potential CO2 Emissions Level
2.2
CO2 per sq m per Year
42
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
14 Onslow Avenue Mansions, Onslow Avenue
Date
18 Jul 2018
Current
Potential
72
83
Property Type
Flat
Built Form
Semi-Detached
Constructed
before 1900
Certificate History
18 Jul 2018
72
83
Total Floor Area
100 sq m
Current CO2 Emissions Level
3.0
Potential CO2 Emissions Level
1.5
CO2 per sq m per Year
30
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
15 Onslow Avenue Mansions, Onslow Avenue
Date
1 Jun 2012
Current
Potential
44
67
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
1 Jun 2012
44
67
Total Floor Area
85 sq m
Current CO2 Emissions Level
5.9
Potential CO2 Emissions Level
3.2
CO2 per sq m per Year
69
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
19 Onslow Avenue Mansions, Onslow Avenue
Date
24 Feb 2009
Current
Potential
60
63
Property Type
Flat
Built Form
Detached
Constructed
1900-1929
Certificate History
24 Feb 2009
60
63
Total Floor Area
96 sq m
Current CO2 Emissions Level
4.8
Potential CO2 Emissions Level
4.7
CO2 per sq m per Year
49
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
2 Onslow Avenue Mansions, Onslow Avenue
Date
10 Jan 2022
Current
Potential
65
80
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1930-1949
Certificate History
10 Jan 2022
65
80
Total Floor Area
103 sq m
Current CO2 Emissions Level
3.9
Potential CO2 Emissions Level
2.0
CO2 per sq m per Year
38
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
21 Onslow Avenue Mansions, Onslow Avenue
Date
1 Aug 2012
Current
Potential
58
79
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
1 Aug 2012
58
79
Total Floor Area
73 sq m
Current CO2 Emissions Level
4.1
Potential CO2 Emissions Level
1.6
CO2 per sq m per Year
56
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
22 Onslow Avenue Mansions, Onslow Avenue
Date
16 Jul 2023
Current
Potential
66
80
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
16 Jul 2023
66
80
1 May 2013
59
78
Total Floor Area
101 sq m
Current CO2 Emissions Level
3.7
Potential CO2 Emissions Level
1.8
CO2 per sq m per Year
36
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
24 Onslow Avenue Mansions, Onslow Avenue
Date
7 Feb 2020
Current
Potential
56
79
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
7 Feb 2020
56
79
9 Dec 2009
47
49
Total Floor Area
88 sq m
Current CO2 Emissions Level
4.6
Potential CO2 Emissions Level
1.9
CO2 per sq m per Year
52
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
25 Onslow Avenue Mansions, Onslow Avenue
Date
12 Jan 2010
Current
Potential
63
69
Property Type
Flat
Built Form
N/A
Constructed
before 1900
Certificate History
12 Jan 2010
63
69
Total Floor Area
92 sq m
Current CO2 Emissions Level
4.4
Potential CO2 Emissions Level
3.7
CO2 per sq m per Year
47
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
28 Onslow Avenue Mansions, Onslow Avenue
Date
30 Mar 2017
Current
Potential
69
82
Property Type
Flat
Built Form
End-Terrace
Constructed
1900-1929
Certificate History
30 Mar 2017
69
82
Total Floor Area
52 sq m
Current CO2 Emissions Level
2.0
Potential CO2 Emissions Level
0.9
CO2 per sq m per Year
39
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
29 Onslow Avenue Mansions, Onslow Avenue
Date
7 Feb 2024
Current
Potential
64
79
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
7 Feb 2024
64
79
21 Oct 2008
70
73
Total Floor Area
73 sq m
Current CO2 Emissions Level
3.1
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
3 Onslow Avenue Mansions, Onslow Avenue
Date
30 Jan 2020
Current
Potential
71
82
Property Type
Flat
Built Form
End-Terrace
Constructed
1900-1929
Certificate History
30 Jan 2020
71
82
4 Nov 2008
59
64
Total Floor Area
72 sq m
Current CO2 Emissions Level
2.4
Potential CO2 Emissions Level
1.2
CO2 per sq m per Year
33
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
30 Onslow Avenue Mansions, Onslow Avenue
Date
20 Feb 2024
Current
Potential
63
78
Property Type
Flat
Built Form
End-Terrace
Constructed
1900-1929
Certificate History
20 Feb 2024
63
78
9 Jan 2014
53
77
Total Floor Area
55 sq m
Current CO2 Emissions Level
3.0
Potential CO2 Emissions Level
1.3
CO2 per sq m per Year
54
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
31 Onslow Avenue Mansions, Onslow Avenue
Date
10 Jul 2022
Current
Potential
60
79
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
10 Jul 2022
60
79
29 Apr 2009
39
46
Total Floor Area
91 sq m
Current CO2 Emissions Level
4.3
Potential CO2 Emissions Level
1.8
CO2 per sq m per Year
47
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
32 Onslow Avenue Mansions, Onslow Avenue
Date
16 Apr 2020
Current
Potential
55
77
Property Type
Flat
Built Form
End-Terrace
Constructed
before 1900
Certificate History
16 Apr 2020
55
77
26 Apr 2009
20
21
Total Floor Area
55 sq m
Current CO2 Emissions Level
3.5
Potential CO2 Emissions Level
1.4
CO2 per sq m per Year
63
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
4 Onslow Avenue Mansions, Onslow Avenue
Date
8 Oct 2023
Current
Potential
71
83
Property Type
Flat
Built Form
Mid-Terrace
Constructed
before 1900
Certificate History
8 Oct 2023
71
83
Total Floor Area
102 sq m
Current CO2 Emissions Level
3.0
Potential CO2 Emissions Level
1.6
CO2 per sq m per Year
30
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
5 Onslow Avenue Mansions, Onslow Avenue
Date
13 Oct 2019
Current
Potential
70
82
Property Type
Flat
Built Form
End-Terrace
Constructed
before 1900
Certificate History
13 Oct 2019
70
82
4 Oct 2009
55
67
4 Oct 2009
55
67
Total Floor Area
72 sq m
Current CO2 Emissions Level
2.5
Potential CO2 Emissions Level
1.2
CO2 per sq m per Year
34
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
8 ONSLOW AVENUE MANSIONS, ONSLOW AVENUE
Date
1 Jul 2021
Current
Potential
45
77
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
1 Jul 2021
45
77
Total Floor Area
100 sq m
Current CO2 Emissions Level
6.5
Potential CO2 Emissions Level
2.3
CO2 per sq m per Year
65
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
9 Onslow Avenue Mansions, Onslow Avenue
Date
7 Sep 2021
Current
Potential
67
76
Property Type
Flat
Built Form
Mid-Terrace
Constructed
before 1900
Certificate History
7 Sep 2021
67
76
Total Floor Area
94 sq m
Current CO2 Emissions Level
3.4
Potential CO2 Emissions Level
2.3
CO2 per sq m per Year
36
Mains Gas Available
Yes
Habitable Rooms
4
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.