PROPERTY ENERGY EFFICIENCY CERTIFICATE DETAILS
Onslow Square, LONDON, SW7 3NP

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 Square, SW7 3NP 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 Square, LONDON, SW7 3NP
Period Covered: 2008 - 30 September 2024

Address
Inspection Date
Current
Potential
Property Type
Built Form
Constructed
Address
16 Onslow Square
Date
6 Sep 2020
Current
Potential
75
81
Property Type
Maisonette
Built Form
Mid-Terrace
Constructed
before 1900
+
Certificate History
6 Sep 2020
75
81
9 Feb 2010
70
71
Total Floor Area
225 sq m
Current CO2 Emissions Level
5.2
Potential CO2 Emissions Level
3.7
CO2 per sq m per Year
23
Mains Gas Available
Yes
Habitable Rooms
7
Number of Extensions
0
Address
2 Onslow Square
Date
17 Jul 2024
Current
Potential
58
76
Property Type
Maisonette
Built Form
End-Terrace
Constructed
before 1900
+
Certificate History
17 Jul 2024
58
76
17 Dec 2013
44
73
Total Floor Area
171 sq m
Current CO2 Emissions Level
7.0
Potential CO2 Emissions Level
3.4
CO2 per sq m per Year
41
Mains Gas Available
Yes
Habitable Rooms
7
Number of Extensions
2
Address
2a Onslow Square
Date
20 Sep 2018
Current
Potential
56
73
Property Type
Flat
Built Form
End-Terrace
Constructed
before 1900
+
Certificate History
20 Sep 2018
56
73
Total Floor Area
80 sq m
Current CO2 Emissions Level
4.2
Potential CO2 Emissions Level
2.3
CO2 per sq m per Year
53
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
1
Address
4 ONSLOW SQUARE, LONDON
Date
3 Nov 2020
Current
Potential
67
80
Property Type
Maisonette
Built Form
Mid-Terrace
Constructed
1930-1949
+
Certificate History
3 Nov 2020
67
80
Total Floor Area
197 sq m
Current CO2 Emissions Level
6.4
Potential CO2 Emissions Level
3.5
CO2 per sq m per Year
32
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
Basement Flat, 2A Onslow Square
Date
10 Jul 2017
Current
Potential
73
79
Property Type
Flat
Built Form
End-Terrace
Constructed
1900-1929
+
Certificate History
10 Jul 2017
73
79
Total Floor Area
91 sq m
Current CO2 Emissions Level
2.4
Potential CO2 Emissions Level
1.9
CO2 per sq m per Year
27
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
Flat 1, 14, Onslow Square
Date
13 Nov 2017
Current
Potential
55
66
Property Type
Flat
Built Form
Semi-Detached
Constructed
before 1900
+
Certificate History
13 Nov 2017
55
66
Total Floor Area
118 sq m
Current CO2 Emissions Level
6.1
Potential CO2 Emissions Level
4.5
CO2 per sq m per Year
52
Mains Gas Available
No
Habitable Rooms
4
Number of Extensions
0
Address
Flat 1, 6, Onslow Square
Date
14 Nov 2019
Current
Potential
69
80
Property Type
Flat
Built Form
Mid-Terrace
Constructed
before 1900
+
Certificate History
14 Nov 2019
69
80
27 Apr 2009
70
72
Total Floor Area
108 sq m
Current CO2 Emissions Level
3.6
Potential CO2 Emissions Level
2.0
CO2 per sq m per Year
33
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
Flat 10, 14, Onslow Square
Date
2 Oct 2019
Current
Potential
44
70
Property Type
Flat
Built Form
Mid-Terrace
Constructed
before 1900
+
Certificate History
2 Oct 2019
44
70
8 Sep 2009
46
48
20 Oct 2008
48
50
Total Floor Area
114 sq m
Current CO2 Emissions Level
7.3
Potential CO2 Emissions Level
3.5
CO2 per sq m per Year
64
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
Flat 3, 14, Onslow Square
Date
27 May 2019
Current
Potential
73
85
Property Type
Flat
Built Form
Mid-Terrace
Constructed
before 1900
+
Certificate History
27 May 2019
73
85
14 May 2009
68
71
Total Floor Area
142 sq m
Current CO2 Emissions Level
3.7
Potential CO2 Emissions Level
1.9
CO2 per sq m per Year
26
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
Flat 3, 20 Onslow Square
Date
17 Jul 2022
Current
Potential
61
73
Property Type
Flat
Built Form
Mid-Terrace
Constructed
before 1900
+
Certificate History
17 Jul 2022
61
73
7 Sep 2010
76
79
Total Floor Area
64 sq m
Current CO2 Emissions Level
2.8
Potential CO2 Emissions Level
1.6
CO2 per sq m per Year
44
Mains Gas Available
No
Habitable Rooms
2
Number of Extensions
0
Address
Flat 4, 14, Onslow Square
Date
27 Mar 2014
Current
Potential
45
76
Property Type
Flat
Built Form
Mid-Terrace
Constructed
before 1900
+
Certificate History
27 Mar 2014
45
76
Total Floor Area
122 sq m
Current CO2 Emissions Level
7.9
Potential CO2 Emissions Level
3.1
CO2 per sq m per Year
65
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
Flat 4, 6, Onslow Square
Date
25 Oct 2011
Current
Potential
62
64
Property Type
Flat
Built Form
Enclosed End-Terrace
Constructed
before 1900
+
Certificate History
25 Oct 2011
62
64
Total Floor Area
120 sq m
Current CO2 Emissions Level
4.6
Potential CO2 Emissions Level
4.4
CO2 per sq m per Year
38
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
Flat 4 & 5, 20 Onslow Square
Date
17 Jul 2013
Current
Potential
65
80
Property Type
Flat
Built Form
Mid-Terrace
Constructed
before 1900
+
Certificate History
17 Jul 2013
65
80
Total Floor Area
199 sq m
Current CO2 Emissions Level
7.8
Potential CO2 Emissions Level
4.1
CO2 per sq m per Year
39
Mains Gas Available
No
Habitable Rooms
7
Number of Extensions
0
Address
Flat 5, 14, Onslow Square
Date
26 Aug 2010
Current
Potential
70
73
Property Type
Flat
Built Form
Detached
Constructed
before 1900
+
Certificate History
26 Aug 2010
70
73
Total Floor Area
116 sq m
Current CO2 Emissions Level
4.1
Potential CO2 Emissions Level
3.9
CO2 per sq m per Year
35
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
Flat 5, 6, Onslow Square
Date
5 Feb 2019
Current
Potential
74
84
Property Type
Flat
Built Form
Mid-Terrace
Constructed
before 1900
+
Certificate History
5 Feb 2019
74
84
17 Dec 2008
67
70
Total Floor Area
106 sq m
Current CO2 Emissions Level
2.8
Potential CO2 Emissions Level
1.5
CO2 per sq m per Year
27
Mains Gas Available
No
Habitable Rooms
4
Number of Extensions
0
Address
Flat 6, 14, Onslow Square
Date
5 Jul 2015
Current
Potential
61
77
Property Type
Flat
Built Form
Mid-Terrace
Constructed
before 1900
+
Certificate History
5 Jul 2015
61
77
Total Floor Area
121 sq m
Current CO2 Emissions Level
4.5
Potential CO2 Emissions Level
2.0
CO2 per sq m per Year
37
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
Flat 6, 20, Onslow Square
Date
4 Jun 2020
Current
Potential
64
76
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1900-1929
+
Certificate History
4 Jun 2020
64
76
7 Apr 2010
68
72
Total Floor Area
128 sq m
Current CO2 Emissions Level
4.2
Potential CO2 Emissions Level
2.4
CO2 per sq m per Year
33
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
Flat 6, 6, Onslow Square
Date
26 Mar 2009
Current
Potential
51
54
Property Type
Flat
Built Form
Semi-Detached
Constructed
before 1900
+
Certificate History
26 Mar 2009
51
54
Total Floor Area
127 sq m
Current CO2 Emissions Level
6.0
Potential CO2 Emissions Level
5.7
CO2 per sq m per Year
47
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
Flat 7, 14, Onslow Square
Date
20 Jun 2011
Current
Potential
70
72
Property Type
Flat
Built Form
Mid-Terrace
Constructed
before 1900
+
Certificate History
20 Jun 2011
70
72
Total Floor Area
118 sq m
Current CO2 Emissions Level
4.0
Potential CO2 Emissions Level
3.8
CO2 per sq m per Year
34
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
Flat 7, 20, Onslow Square
Date
19 Aug 2012
Current
Potential
68
82
Property Type
Flat
Built Form
Mid-Terrace
Constructed
before 1900
+
Certificate History
19 Aug 2012
68
82
Total Floor Area
64 sq m
Current CO2 Emissions Level
2.6
Potential CO2 Emissions Level
1.1
CO2 per sq m per Year
41
Mains Gas Available
No
Habitable Rooms
2
Number of Extensions
0
Address
Flat 7, 6, Onslow Square
Date
12 Nov 2012
Current
Potential
39
44
Property Type
Flat
Built Form
Mid-Terrace
Constructed
before 1900
+
Certificate History
12 Nov 2012
39
44
Total Floor Area
78 sq m
Current CO2 Emissions Level
5.7
Potential CO2 Emissions Level
5.2
CO2 per sq m per Year
73
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
Flat 8, 14, Onslow Square
Date
24 Apr 2016
Current
Potential
79
83
Property Type
Flat
Built Form
Mid-Terrace
Constructed
before 1900
+
Certificate History
24 Apr 2016
79
83
Total Floor Area
122 sq m
Current CO2 Emissions Level
2.5
Potential CO2 Emissions Level
1.8
CO2 per sq m per Year
20
Mains Gas Available
No
Habitable Rooms
4
Number of Extensions
0
Address
Flat 8, 20 Onslow Square
Date
20 Dec 2022
Current
Potential
48
69
Property Type
Flat
Built Form
Mid-Terrace
Constructed
before 1900
+
Certificate History
20 Dec 2022
48
69
28 Jan 2013
44
72
Total Floor Area
110 sq m
Current CO2 Emissions Level
6.8
Potential CO2 Emissions Level
3.8
CO2 per sq m per Year
61
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
1
Address
Flat 8, 6, Onslow Square
Date
16 Sep 2010
Current
Potential
23
37
Property Type
Flat
Built Form
End-Terrace
Constructed
before 1900
+
Certificate History
16 Sep 2010
23
37
Total Floor Area
102 sq m
Current CO2 Emissions Level
9.4
Potential CO2 Emissions Level
6.7
CO2 per sq m per Year
93
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
Flat 9, 14, Onslow Square
Date
11 May 2020
Current
Potential
54
71
Property Type
Flat
Built Form
Mid-Terrace
Constructed
before 1900
+
Certificate History
11 May 2020
54
71
5 Nov 2008
47
50
Total Floor Area
110 sq m
Current CO2 Emissions Level
5.6
Potential CO2 Emissions Level
3.3
CO2 per sq m per Year
51
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Bands

A
92 - 100
B
81 - 91
C
69 - 80
D
55 -68
E
39 -54
F
54 -38
G
0 - 20

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 2024.