PROPERTY ENERGY EFFICIENCY CERTIFICATE DETAILS
Basil Street, LONDON, SW3 1AX
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 Basil Street, SW3 1AX 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 Basil Street, LONDON, SW3 1AX
Period Covered:
2008 - 31 October 2024
Address
Inspection Date
Current
Potential
Property Type
Built Form
Constructed
Address
Flat 1 Jefferson House, 11, Basil Street
Date
2 Sep 2018
Current
Potential
65
75
Property Type
Flat
Built Form
Mid-Terrace
Constructed
before 1900
Certificate History
2 Sep 2018
65
75
Total Floor Area
70 sq m
Current CO2 Emissions Level
3.1
Potential CO2 Emissions Level
1.9
CO2 per sq m per Year
44
Mains Gas Available
No
Habitable Rooms
3
Number of Extensions
0
Address
Flat 10 Jefferson House, 11, Basil Street
Date
9 Nov 2015
Current
Potential
76
80
Property Type
Flat
Built Form
Mid-Terrace
Constructed
before 1900
Certificate History
9 Nov 2015
76
80
Total Floor Area
27 sq m
Current CO2 Emissions Level
0.9
Potential CO2 Emissions Level
0.7
CO2 per sq m per Year
34
Mains Gas Available
Yes
Habitable Rooms
1
Number of Extensions
0
Address
Flat 11, Jefferson House
Date
14 May 2023
Current
Potential
68
77
Property Type
Flat
Built Form
Enclosed End-Terrace
Constructed
1950-1966
Certificate History
14 May 2023
68
77
Total Floor Area
26 sq m
Current CO2 Emissions Level
1.5
Potential CO2 Emissions Level
0.9
CO2 per sq m per Year
58
Mains Gas Available
No
Habitable Rooms
1
Number of Extensions
0
Address
Flat 11 Jefferson House, 11, Basil Street
Date
1 Jun 2010
Current
Potential
77
78
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1930-1949
Certificate History
1 Jun 2010
77
78
Total Floor Area
22 sq m
Current CO2 Emissions Level
1.4
Potential CO2 Emissions Level
1.3
CO2 per sq m per Year
61
Mains Gas Available
Yes
Habitable Rooms
1
Number of Extensions
0
Address
Flat 12 Jefferson House, 11, Basil Street
Date
7 Mar 2016
Current
Potential
69
76
Property Type
Flat
Built Form
Enclosed Mid-Terrace
Constructed
before 1900
Certificate History
7 Mar 2016
69
76
21 Mar 2012
67
68
25 Nov 2008
74
75
Total Floor Area
29 sq m
Current CO2 Emissions Level
1.5
Potential CO2 Emissions Level
1.1
CO2 per sq m per Year
51
Mains Gas Available
Yes
Habitable Rooms
1
Number of Extensions
0
Address
Flat 13 Jefferson House, 11, Basil Street
Date
10 Apr 2018
Current
Potential
71
79
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
10 Apr 2018
71
79
Total Floor Area
26 sq m
Current CO2 Emissions Level
1.2
Potential CO2 Emissions Level
0.8
CO2 per sq m per Year
49
Mains Gas Available
Yes
Habitable Rooms
1
Number of Extensions
0
Address
Flat 14 Jefferson House, 11, Basil Street
Date
15 Sep 2019
Current
Potential
61
75
Property Type
Flat
Built Form
Mid-Terrace
Constructed
before 1900
Certificate History
15 Sep 2019
61
75
Total Floor Area
22 sq m
Current CO2 Emissions Level
1.8
Potential CO2 Emissions Level
0.9
CO2 per sq m per Year
81
Mains Gas Available
No
Habitable Rooms
1
Number of Extensions
0
Address
Flat 15 Jefferson House, 11, Basil Street
Date
30 Jul 2019
Current
Potential
77
79
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
30 Jul 2019
77
79
18 May 2009
80
81
Total Floor Area
42 sq m
Current CO2 Emissions Level
1.2
Potential CO2 Emissions Level
1.0
CO2 per sq m per Year
28
Mains Gas Available
Yes
Habitable Rooms
1
Number of Extensions
0
Address
Flat 16 Jefferson House, 11, Basil Street
Date
30 Mar 2009
Current
Potential
78
79
Property Type
Flat
Built Form
Enclosed Mid-Terrace
Constructed
1900-1929
Certificate History
30 Mar 2009
78
79
Total Floor Area
33 sq m
Current CO2 Emissions Level
1.5
Potential CO2 Emissions Level
1.5
CO2 per sq m per Year
47
Mains Gas Available
No
Habitable Rooms
1
Number of Extensions
0
Address
Flat 17 Jefferson House, 11, Basil Street
Date
19 May 2016
Current
Potential
64
72
Property Type
Flat
Built Form
Mid-Terrace
Constructed
before 1900
Certificate History
19 May 2016
64
72
Total Floor Area
31 sq m
Current CO2 Emissions Level
1.9
Potential CO2 Emissions Level
1.3
CO2 per sq m per Year
62
Mains Gas Available
No
Habitable Rooms
1
Number of Extensions
0
Address
Flat 2 Jefferson House, 11, Basil Street
Date
28 Feb 2018
Current
Potential
60
75
Property Type
Flat
Built Form
Mid-Terrace
Constructed
before 1900
Certificate History
28 Feb 2018
60
75
13 Oct 2008
68
69
Total Floor Area
36 sq m
Current CO2 Emissions Level
2.4
Potential CO2 Emissions Level
1.2
CO2 per sq m per Year
66
Mains Gas Available
Yes
Habitable Rooms
1
Number of Extensions
1
Address
Flat 20 Jefferson House, 11, Basil Street
Date
24 Oct 2018
Current
Potential
67
77
Property Type
Flat
Built Form
Enclosed Mid-Terrace
Constructed
1900-1929
Certificate History
24 Oct 2018
67
77
15 Oct 2008
81
82
Total Floor Area
26 sq m
Current CO2 Emissions Level
1.5
Potential CO2 Emissions Level
0.9
CO2 per sq m per Year
60
Mains Gas Available
No
Habitable Rooms
1
Number of Extensions
0
Address
Flat 21, Jefferson House
Date
24 May 2022
Current
Potential
69
77
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
24 May 2022
69
77
Total Floor Area
24 sq m
Current CO2 Emissions Level
1.3
Potential CO2 Emissions Level
0.8
CO2 per sq m per Year
57
Mains Gas Available
No
Habitable Rooms
1
Number of Extensions
0
Address
Flat 22 Jefferson House, 11, Basil Street
Date
2 Oct 2017
Current
Potential
72
78
Property Type
Flat
Built Form
Enclosed Mid-Terrace
Constructed
before 1900
Certificate History
2 Oct 2017
72
78
Total Floor Area
15 sq m
Current CO2 Emissions Level
0.9
Potential CO2 Emissions Level
0.6
CO2 per sq m per Year
61
Mains Gas Available
No
Habitable Rooms
1
Number of Extensions
0
Address
Flat 23 Jefferson House, 11, Basil Street
Date
2 Oct 2017
Current
Potential
72
78
Property Type
Flat
Built Form
Enclosed Mid-Terrace
Constructed
before 1900
Certificate History
2 Oct 2017
72
78
Total Floor Area
16 sq m
Current CO2 Emissions Level
1.0
Potential CO2 Emissions Level
0.6
CO2 per sq m per Year
59
Mains Gas Available
No
Habitable Rooms
1
Number of Extensions
0
Address
Flat 24 Jefferson House, 11, Basil Street
Date
12 Aug 2020
Current
Potential
74
78
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
12 Aug 2020
74
78
19 May 2010
85
86
Total Floor Area
18 sq m
Current CO2 Emissions Level
0.9
Potential CO2 Emissions Level
0.7
CO2 per sq m per Year
50
Mains Gas Available
Yes
Habitable Rooms
1
Number of Extensions
0
Address
Flat 25 Jefferson House, 11, Basil Street
Date
5 Apr 2016
Current
Potential
73
75
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
5 Apr 2016
73
75
Total Floor Area
12 sq m
Current CO2 Emissions Level
1.7
Potential CO2 Emissions Level
1.6
CO2 per sq m per Year
141
Mains Gas Available
Yes
Habitable Rooms
1
Number of Extensions
0
Address
Flat 26, Jefferson House
Date
14 May 2023
Current
Potential
67
75
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
14 May 2023
67
75
Total Floor Area
30 sq m
Current CO2 Emissions Level
1.7
Potential CO2 Emissions Level
1.2
CO2 per sq m per Year
57
Mains Gas Available
No
Habitable Rooms
1
Number of Extensions
0
Address
Flat 27, Jefferson House
Date
4 Feb 2022
Current
Potential
65
70
Property Type
Flat
Built Form
Mid-Terrace
Constructed
before 1900
Certificate History
4 Feb 2022
65
70
Total Floor Area
15 sq m
Current CO2 Emissions Level
1.3
Potential CO2 Emissions Level
1.1
CO2 per sq m per Year
92
Mains Gas Available
Yes
Habitable Rooms
1
Number of Extensions
0
Address
Flat 27 Jefferson House, 11, Basil Street
Date
12 May 2009
Current
Potential
64
65
Property Type
House
Built Form
Enclosed Mid-Terrace
Constructed
before 1900
Certificate History
12 May 2009
64
65
Total Floor Area
18 sq m
Current CO2 Emissions Level
2.1
Potential CO2 Emissions Level
2.1
CO2 per sq m per Year
118
Mains Gas Available
No
Habitable Rooms
1
Number of Extensions
0
Address
Flat 28 Jefferson House, 11, Basil Street
Date
13 Nov 2019
Current
Potential
73
78
Property Type
Flat
Built Form
Enclosed Mid-Terrace
Constructed
before 1900
Certificate History
13 Nov 2019
73
78
12 Aug 2009
81
82
Total Floor Area
21 sq m
Current CO2 Emissions Level
1.0
Potential CO2 Emissions Level
0.7
CO2 per sq m per Year
49
Mains Gas Available
No
Habitable Rooms
1
Number of Extensions
0
Address
Flat 29 Jefferson House, 11, Basil Street
Date
21 Nov 2011
Current
Potential
68
69
Property Type
Flat
Built Form
Mid-Terrace
Constructed
before 1900
Certificate History
21 Nov 2011
68
69
Total Floor Area
18 sq m
Current CO2 Emissions Level
1.3
Potential CO2 Emissions Level
1.2
CO2 per sq m per Year
72
Mains Gas Available
Yes
Habitable Rooms
1
Number of Extensions
0
Address
Flat 30 Jefferson House, 11, Basil Street
Date
7 Apr 2015
Current
Potential
68
79
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
7 Apr 2015
68
79
Total Floor Area
26 sq m
Current CO2 Emissions Level
1.4
Potential CO2 Emissions Level
0.7
CO2 per sq m per Year
55
Mains Gas Available
Yes
Habitable Rooms
1
Number of Extensions
0
Address
Flat 31 Jefferson House, 11, Basil Street
Date
10 Jul 2017
Current
Potential
57
73
Property Type
Flat
Built Form
Mid-Terrace
Constructed
before 1900
Certificate History
10 Jul 2017
57
73
Total Floor Area
25 sq m
Current CO2 Emissions Level
2.2
Potential CO2 Emissions Level
1.2
CO2 per sq m per Year
88
Mains Gas Available
Yes
Habitable Rooms
1
Number of Extensions
0
Address
Flat 32, Jefferson House
Date
10 Sep 2024
Current
Potential
69
82
Property Type
Flat
Built Form
Mid-Terrace
Constructed
before 1900
Certificate History
10 Sep 2024
69
82
Total Floor Area
133 sq m
Current CO2 Emissions Level
4.2
Potential CO2 Emissions Level
2.2
CO2 per sq m per Year
32
Mains Gas Available
No
Habitable Rooms
4
Number of Extensions
0
Address
Flat 33 Jefferson House, 11, Basil Street
Date
4 Nov 2011
Current
Potential
74
74
Property Type
Flat
Built Form
Mid-Terrace
Constructed
before 1900
Certificate History
4 Nov 2011
74
74
4 Dec 2009
78
81
Total Floor Area
154 sq m
Current CO2 Emissions Level
4.3
Potential CO2 Emissions Level
4.3
CO2 per sq m per Year
28
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
Flat 34-35 Jefferson House 7-11 Basil Street
Date
10 Sep 2023
Current
Potential
65
67
Property Type
Flat
Built Form
Enclosed Mid-Terrace
Constructed
before 1900
Certificate History
10 Sep 2023
65
67
Total Floor Area
236 sq m
Current CO2 Emissions Level
8.2
Potential CO2 Emissions Level
7.9
CO2 per sq m per Year
35
Mains Gas Available
No
Habitable Rooms
5
Number of Extensions
0
Address
Flat 36, Jefferson House
Date
1 Jul 2010
Current
Potential
82
84
Property Type
Maisonette
Built Form
Mid-Terrace
Constructed
1996-2002
Certificate History
1 Jul 2010
82
84
Total Floor Area
49 sq m
Current CO2 Emissions Level
1.4
Potential CO2 Emissions Level
1.4
CO2 per sq m per Year
29
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
Flat 36 Jefferson House, 11, Basil Street
Date
28 Mar 2012
Current
Potential
68
70
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
28 Mar 2012
68
70
Total Floor Area
50 sq m
Current CO2 Emissions Level
2.3
Potential CO2 Emissions Level
2.2
CO2 per sq m per Year
45
Mains Gas Available
No
Habitable Rooms
3
Number of Extensions
0
Address
Flat 4 Jefferson House, 11, Basil Street
Date
29 Jul 2019
Current
Potential
64
73
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
29 Jul 2019
64
73
7 Jul 2009
67
69
Total Floor Area
34 sq m
Current CO2 Emissions Level
2.0
Potential CO2 Emissions Level
1.3
CO2 per sq m per Year
60
Mains Gas Available
No
Habitable Rooms
1
Number of Extensions
0
Address
Flat 5 Jefferson House, 11, Basil Street
Date
6 May 2019
Current
Potential
64
75
Property Type
Flat
Built Form
Mid-Terrace
Constructed
before 1900
Certificate History
6 May 2019
64
75
26 Nov 2008
73
74
Total Floor Area
27 sq m
Current CO2 Emissions Level
1.8
Potential CO2 Emissions Level
1.0
CO2 per sq m per Year
67
Mains Gas Available
No
Habitable Rooms
1
Number of Extensions
0
Address
Flat 6 Jefferson House, 11, Basil Street
Date
7 Apr 2013
Current
Potential
59
73
Property Type
Flat
Built Form
Mid-Terrace
Constructed
before 1900
Certificate History
7 Apr 2013
59
73
Total Floor Area
30 sq m
Current CO2 Emissions Level
2.2
Potential CO2 Emissions Level
1.2
CO2 per sq m per Year
75
Mains Gas Available
Yes
Habitable Rooms
1
Number of Extensions
1
Address
Flat 7 Jefferson House, 11, Basil Street
Date
27 Mar 2019
Current
Potential
73
77
Property Type
Flat
Built Form
Mid-Terrace
Constructed
before 1900
Certificate History
27 Mar 2019
73
77
12 Nov 2008
67
69
Total Floor Area
31 sq m
Current CO2 Emissions Level
1.3
Potential CO2 Emissions Level
0.9
CO2 per sq m per Year
41
Mains Gas Available
Yes
Habitable Rooms
1
Number of Extensions
0
Address
Flat 8, Jefferson House
Date
14 Apr 2024
Current
Potential
74
79
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
14 Apr 2024
74
79
7 Jun 2023
65
76
Total Floor Area
25 sq m
Current CO2 Emissions Level
1.0
Potential CO2 Emissions Level
0.7
CO2 per sq m per Year
41
Mains Gas Available
No
Habitable Rooms
1
Number of Extensions
0
Address
Flat 9 Jefferson House, 11, Basil Street
Date
14 Jul 2020
Current
Potential
77
80
Property Type
Flat
Built Form
Enclosed Mid-Terrace
Constructed
before 1900
Certificate History
14 Jul 2020
77
80
14 Jul 2010
78
79
17 Aug 2009
76
78
Total Floor Area
28 sq m
Current CO2 Emissions Level
0.9
Potential CO2 Emissions Level
0.8
CO2 per sq m per Year
33
Mains Gas Available
No
Habitable Rooms
1
Number of Extensions
0
Address
Penthouse Jefferson House, 11, Basil Street
Date
6 Aug 2012
Current
Potential
78
80
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1996-2002
Certificate History
6 Aug 2012
78
80
Total Floor Area
229 sq m
Current CO2 Emissions Level
4.6
Potential CO2 Emissions Level
4.3
CO2 per sq m per Year
20
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.
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