PROPERTY ENERGY EFFICIENCY CERTIFICATE DETAILS
Clarendon Gardens, LONDON, W9 1AZ
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 Clarendon Gardens, W9 1AZ 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 Clarendon Gardens, LONDON, W9 1AZ
Period Covered:
2008 - 31 January 2025
Address
Inspection Date
Current
Potential
Property Type
Built Form
Constructed
Address
18 Clarendon Gardens
Date
9 Feb 2017
Current
Potential
57
77
Property Type
Flat
Built Form
Enclosed End-Terrace
Constructed
1900-1929
Certificate History
9 Feb 2017
57
77
Total Floor Area
92 sq m
Current CO2 Emissions Level
4.5
Potential CO2 Emissions Level
2.1
CO2 per sq m per Year
50
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
20 Clarendon Gardens
Date
8 Feb 2017
Current
Potential
49
74
Property Type
Maisonette
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
8 Feb 2017
49
74
Total Floor Area
91 sq m
Current CO2 Emissions Level
5.1
Potential CO2 Emissions Level
2.2
CO2 per sq m per Year
56
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
21 Clarendon Gardens
Date
24 Jan 2018
Current
Potential
46
73
Property Type
House
Built Form
Mid-Terrace
Constructed
before 1900
Certificate History
24 Jan 2018
46
73
Total Floor Area
269 sq m
Current CO2 Emissions Level
14.0
Potential CO2 Emissions Level
6.4
CO2 per sq m per Year
51
Mains Gas Available
Yes
Habitable Rooms
8
Number of Extensions
1
Address
22 Clarendon Gardens
Date
14 Oct 2008
Current
Potential
56
58
Property Type
House
Built Form
Mid-Terrace
Constructed
before 1900
Certificate History
14 Oct 2008
56
58
8 Oct 2008
50
58
Total Floor Area
100 sq m
Current CO2 Emissions Level
6.0
Potential CO2 Emissions Level
5.9
CO2 per sq m per Year
53
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
24 Clarendon Gardens
Date
17 Apr 2024
Current
Potential
63
82
Property Type
House
Built Form
Mid-Terrace
Constructed
before 1900
Certificate History
17 Apr 2024
63
82
12 Mar 2010
47
49
Total Floor Area
271 sq m
Current CO2 Emissions Level
9.3
Potential CO2 Emissions Level
4.4
CO2 per sq m per Year
34
Mains Gas Available
Yes
Habitable Rooms
11
Number of Extensions
0
Address
26a Clarendon Gardens
Date
18 May 2022
Current
Potential
64
81
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1930-1949
Certificate History
18 May 2022
64
81
Total Floor Area
114 sq m
Current CO2 Emissions Level
4.5
Potential CO2 Emissions Level
2.0
CO2 per sq m per Year
39
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
1
Address
26c Clarendon Gardens
Date
19 Jul 2022
Current
Potential
63
71
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1930-1949
Certificate History
19 Jul 2022
63
71
Total Floor Area
110 sq m
Current CO2 Emissions Level
4.5
Potential CO2 Emissions Level
3.4
CO2 per sq m per Year
41
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
1
Address
27 Clarendon Gardens
Date
22 May 2019
Current
Potential
58
76
Property Type
Maisonette
Built Form
Mid-Terrace
Constructed
before 1900
Certificate History
22 May 2019
58
76
Total Floor Area
156 sq m
Current CO2 Emissions Level
6.6
Potential CO2 Emissions Level
3.4
CO2 per sq m per Year
42
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
1
Address
27a Clarendon Gardens
Date
21 Jan 2009
Current
Potential
62
64
Property Type
Maisonette
Built Form
Mid-Terrace
Constructed
before 1900
Certificate History
21 Jan 2009
62
64
Total Floor Area
101 sq m
Current CO2 Emissions Level
5.1
Potential CO2 Emissions Level
5.0
CO2 per sq m per Year
46
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
28 Clarendon Gardens
Date
18 Jul 2010
Current
Potential
55
68
Property Type
Maisonette
Built Form
Mid-Terrace
Constructed
before 1900
Certificate History
18 Jul 2010
55
68
Total Floor Area
104 sq m
Current CO2 Emissions Level
5.7
Potential CO2 Emissions Level
4.2
CO2 per sq m per Year
55
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
28a Clarendon Gardens
Date
19 Nov 2018
Current
Potential
60
77
Property Type
Maisonette
Built Form
Mid-Terrace
Constructed
before 1900
Certificate History
19 Nov 2018
60
77
14 Oct 2008
59
66
Total Floor Area
113 sq m
Current CO2 Emissions Level
4.5
Potential CO2 Emissions Level
2.4
CO2 per sq m per Year
40
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
2
Address
29a Clarendon Gardens
Date
26 Oct 2010
Current
Potential
63
76
Property Type
Maisonette
Built Form
N/A
Constructed
before 1900
Certificate History
26 Oct 2010
63
76
30 Sep 2009
67
72
Total Floor Area
118 sq m
Current CO2 Emissions Level
5.0
Potential CO2 Emissions Level
3.4
CO2 per sq m per Year
43
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
29A CLARENDON GARDENS, LONDON
Date
11 Dec 2020
Current
Potential
63
79
Property Type
Flat
Built Form
Mid-Terrace
Constructed
before 1900
Certificate History
11 Dec 2020
63
79
Total Floor Area
114 sq m
Current CO2 Emissions Level
4.6
Potential CO2 Emissions Level
2.4
CO2 per sq m per Year
41
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
29b Clarendon Gardens
Date
25 Aug 2020
Current
Potential
67
79
Property Type
Flat
Built Form
Mid-Terrace
Constructed
before 1900
Certificate History
25 Aug 2020
67
79
3 Feb 2011
73
80
Total Floor Area
39 sq m
Current CO2 Emissions Level
1.8
Potential CO2 Emissions Level
0.9
CO2 per sq m per Year
46
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
29c Clarendon Gardens
Date
28 May 2021
Current
Potential
61
80
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
28 May 2021
61
80
26 May 2011
55
66
17 Feb 2010
47
59
Total Floor Area
99 sq m
Current CO2 Emissions Level
4.6
Potential CO2 Emissions Level
1.9
CO2 per sq m per Year
46
Mains Gas Available
No
Habitable Rooms
4
Number of Extensions
0
Address
2nd Floor Flat, 23 Clarendon Gardens
Date
17 Jun 2014
Current
Potential
69
81
Property Type
Flat
Built Form
Mid-Terrace
Constructed
before 1900
Certificate History
17 Jun 2014
69
81
12 Mar 2010
73
75
Total Floor Area
47 sq m
Current CO2 Emissions Level
1.9
Potential CO2 Emissions Level
0.9
CO2 per sq m per Year
41
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
33a Clarendon Gardens
Date
30 Jun 2016
Current
Potential
59
74
Property Type
Flat
Built Form
Mid-Terrace
Constructed
before 1900
Certificate History
30 Jun 2016
59
74
1 Dec 2010
68
74
Total Floor Area
68 sq m
Current CO2 Emissions Level
3.5
Potential CO2 Emissions Level
1.9
CO2 per sq m per Year
52
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
2
Address
34 Clarendon Gardens
Date
5 Dec 2016
Current
Potential
44
79
Property Type
House
Built Form
End-Terrace
Constructed
before 1900
Certificate History
5 Dec 2016
44
79
Total Floor Area
269 sq m
Current CO2 Emissions Level
15.0
Potential CO2 Emissions Level
5.1
CO2 per sq m per Year
55
Mains Gas Available
Yes
Habitable Rooms
11
Number of Extensions
2
Address
Basement and Ground Floor Flat, 22 Clarendon Gardens
Date
13 May 2019
Current
Potential
63
76
Property Type
Maisonette
Built Form
Mid-Terrace
Constructed
before 1900
Certificate History
13 May 2019
63
76
Total Floor Area
125 sq m
Current CO2 Emissions Level
4.6
Potential CO2 Emissions Level
2.7
CO2 per sq m per Year
37
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
3
Address
First Floor Flat, 19 Clarendon Gardens
Date
27 Mar 2019
Current
Potential
67
79
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
27 Mar 2019
67
79
Total Floor Area
54 sq m
Current CO2 Emissions Level
2.3
Potential CO2 Emissions Level
1.2
CO2 per sq m per Year
42
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
First Floor Flat, 20 Clarendon Gardens
Date
3 Sep 2023
Current
Potential
72
79
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
3 Sep 2023
72
79
22 Jan 2019
72
81
15 Nov 2008
64
69
Total Floor Area
45 sq m
Current CO2 Emissions Level
1.6
Potential CO2 Emissions Level
1.1
CO2 per sq m per Year
36
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
First Floor Flat, 22 Clarendon Gardens
Date
14 Jan 2011
Current
Potential
74
77
Property Type
Flat
Built Form
Mid-Terrace
Constructed
before 1900
Certificate History
14 Jan 2011
74
77
Total Floor Area
47 sq m
Current CO2 Emissions Level
2.0
Potential CO2 Emissions Level
1.8
CO2 per sq m per Year
42
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
First Floor Flat, 23 Clarendon Gardens
Date
11 Feb 2019
Current
Potential
65
77
Property Type
Flat
Built Form
Mid-Terrace
Constructed
before 1900
Certificate History
11 Feb 2019
65
77
23 Feb 2009
72
77
Total Floor Area
40 sq m
Current CO2 Emissions Level
2.0
Potential CO2 Emissions Level
1.0
CO2 per sq m per Year
49
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
First Floor Flat, 25 Clarendon Gardens
Date
26 Jun 2014
Current
Potential
65
78
Property Type
Flat
Built Form
Mid-Terrace
Constructed
before 1900
Certificate History
26 Jun 2014
65
78
Total Floor Area
47 sq m
Current CO2 Emissions Level
2.2
Potential CO2 Emissions Level
1.1
CO2 per sq m per Year
47
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
FIRST FLOOR FLAT, 28 CLARENDON GARDENS
Date
23 Jun 2021
Current
Potential
67
78
Property Type
Flat
Built Form
Mid-Terrace
Constructed
before 1900
Certificate History
23 Jun 2021
67
78
Total Floor Area
41 sq m
Current CO2 Emissions Level
1.9
Potential CO2 Emissions Level
1.0
CO2 per sq m per Year
46
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
First Floor Flat, 30 Clarendon Gardens
Date
17 Apr 2022
Current
Potential
73
79
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
17 Apr 2022
73
79
25 Oct 2011
65
71
Total Floor Area
39 sq m
Current CO2 Emissions Level
1.4
Potential CO2 Emissions Level
0.9
CO2 per sq m per Year
35
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
Flat 1, 28 Clarendon Gardens
Date
18 Jul 2010
Current
Potential
66
73
Property Type
Flat
Built Form
Mid-Terrace
Constructed
before 1900
Certificate History
18 Jul 2010
66
73
31 May 2018
69
76
Total Floor Area
39 sq m
Current CO2 Emissions Level
2.4
Potential CO2 Emissions Level
1.9
CO2 per sq m per Year
62
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
Flat 1 26 Clarendon Gardens
Date
5 Oct 2021
Current
Potential
70
81
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1950-1966
Certificate History
5 Oct 2021
70
81
Total Floor Area
48 sq m
Current CO2 Emissions Level
1.9
Potential CO2 Emissions Level
1.0
CO2 per sq m per Year
39
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
Flat 2, 33 Clarendon Gardens
Date
24 Mar 2021
Current
Potential
41
80
Property Type
Flat
Built Form
Mid-Terrace
Constructed
before 1900
Certificate History
24 Mar 2021
41
80
3 May 2010
22
52
Total Floor Area
44 sq m
Current CO2 Emissions Level
3.8
Potential CO2 Emissions Level
1.8
CO2 per sq m per Year
85
Mains Gas Available
No
Habitable Rooms
2
Number of Extensions
0
Address
Flat 3, 23 Clarendon Gardens
Date
26 Jan 2024
Current
Potential
72
80
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
26 Jan 2024
72
80
17 Aug 2009
50
57
Total Floor Area
44 sq m
Current CO2 Emissions Level
1.6
Potential CO2 Emissions Level
0.9
CO2 per sq m per Year
36
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
1
Address
Flat 4, 23 Clarendon Gardens
Date
4 Nov 2019
Current
Potential
71
78
Property Type
Flat
Built Form
Mid-Terrace
Constructed
before 1900
Certificate History
4 Nov 2019
71
78
20 Oct 2009
74
78
Total Floor Area
51 sq m
Current CO2 Emissions Level
1.9
Potential CO2 Emissions Level
1.2
CO2 per sq m per Year
37
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
1
Address
Flat A, 23 Clarendon Gardens
Date
13 May 2024
Current
Potential
79
80
Property Type
Flat
Built Form
Mid-Terrace
Constructed
before 1900
Certificate History
13 May 2024
79
80
Total Floor Area
130 sq m
Current CO2 Emissions Level
2.6
Potential CO2 Emissions Level
2.3
CO2 per sq m per Year
20
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
Garden Flat, 23 Clarendon Gardens
Date
4 Sep 2013
Current
Potential
62
75
Property Type
Flat
Built Form
Mid-Terrace
Constructed
before 1900
Certificate History
4 Sep 2013
62
75
Total Floor Area
124 sq m
Current CO2 Emissions Level
4.9
Potential CO2 Emissions Level
3.1
CO2 per sq m per Year
40
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
2
Address
Second and Third Floor Maisonette, 28 Clarendon Gardens
Date
27 Sep 2021
Current
Potential
71
81
Property Type
Maisonette
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
27 Sep 2021
71
81
Total Floor Area
108 sq m
Current CO2 Emissions Level
3.3
Potential CO2 Emissions Level
1.9
CO2 per sq m per Year
30
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
0
Address
SECOND FLOOR FLAT 3, 33 CLARENDON GARDENS
Date
4 Mar 2021
Current
Potential
62
78
Property Type
Maisonette
Built Form
Mid-Terrace
Constructed
before 1900
Certificate History
4 Mar 2021
62
78
Total Floor Area
98 sq m
Current CO2 Emissions Level
4.1
Potential CO2 Emissions Level
2.2
CO2 per sq m per Year
42
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
2
Address
Top Floor Flat, 19 Clarendon Gardens
Date
6 Feb 2020
Current
Potential
59
79
Property Type
Maisonette
Built Form
Mid-Terrace
Constructed
before 1900
Certificate History
6 Feb 2020
59
79
11 Nov 2008
62
67
Total Floor Area
95 sq m
Current CO2 Emissions Level
4.4
Potential CO2 Emissions Level
1.8
CO2 per sq m per Year
46
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
Top Floor Flat, 20 Clarendon Gardens
Date
21 Aug 2023
Current
Potential
60
81
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
21 Aug 2023
60
81
3 Nov 2011
69
69
Total Floor Area
94 sq m
Current CO2 Emissions Level
4.3
Potential CO2 Emissions Level
1.7
CO2 per sq m per Year
45
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
Top Floor Flat, 30 Clarendon Gardens
Date
3 Sep 2013
Current
Potential
61
74
Property Type
Flat
Built Form
Mid-Terrace
Constructed
before 1900
Certificate History
3 Sep 2013
61
74
Total Floor Area
111 sq m
Current CO2 Emissions Level
4.7
Potential CO2 Emissions Level
3.0
CO2 per sq m per Year
42
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
1
Address
Upper Floor Maisonette, 25 Clarendon Gardens
Date
12 Mar 2020
Current
Potential
59
83
Property Type
Flat
Built Form
Mid-Terrace
Constructed
before 1900
Certificate History
12 Mar 2020
59
83
Total Floor Area
102 sq m
Current CO2 Emissions Level
4.7
Potential CO2 Emissions Level
1.6
CO2 per sq m per Year
46
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.