PROPERTY ENERGY EFFICIENCY CERTIFICATE DETAILS
John Street, PENARTH, CF64 1DN
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 John Street, CF64 1DN 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 John Street, PENARTH, CF64 1DN
Period Covered:
2008 - 31 January 2025
Address
Inspection Date
Current
Potential
Property Type
Built Form
Constructed
Address
1 Admana Apartments, John Street
Date
17 Jul 2024
Current
Potential
73
84
Property Type
Flat
Built Form
End-Terrace
Constructed
2007-2011
Certificate History
17 Jul 2024
73
84
25 Apr 2012
73
74
Total Floor Area
41 sq m
Current CO2 Emissions Level
1.4
Potential CO2 Emissions Level
1.5
CO2 per sq m per Year
35
Mains Gas Available
No
Habitable Rooms
2
Number of Extensions
0
Address
1 John Street
Date
17 Dec 2012
Current
Potential
46
77
Property Type
House
Built Form
End-Terrace
Constructed
before 1900
Certificate History
17 Dec 2012
46
77
Total Floor Area
91 sq m
Current CO2 Emissions Level
5.8
Potential CO2 Emissions Level
2.2
CO2 per sq m per Year
64
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
0
Address
10 John Street
Date
18 Jun 2025
Current
Potential
40
82
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
18 Jun 2025
40
82
Total Floor Area
84 sq m
Current CO2 Emissions Level
5.4
Potential CO2 Emissions Level
1.8
CO2 per sq m per Year
64
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
1
Address
11 John Street
Date
9 Sep 2020
Current
Potential
64
88
Property Type
House
Built Form
Mid-Terrace
Constructed
before 1900
Certificate History
9 Sep 2020
64
88
Total Floor Area
76 sq m
Current CO2 Emissions Level
3.4
Potential CO2 Emissions Level
0.8
CO2 per sq m per Year
44
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
12 John Street
Date
16 Dec 2014
Current
Potential
58
90
Property Type
House
Built Form
Mid-Terrace
Constructed
before 1900
Certificate History
16 Dec 2014
58
90
Total Floor Area
93 sq m
Current CO2 Emissions Level
4.6
Potential CO2 Emissions Level
0.8
CO2 per sq m per Year
50
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
13 John Street
Date
18 Oct 2015
Current
Potential
67
81
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
18 Oct 2015
67
81
18 Nov 2008
53
69
Total Floor Area
106 sq m
Current CO2 Emissions Level
4.0
Potential CO2 Emissions Level
2.1
CO2 per sq m per Year
38
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
2
Address
14 JOHN STREET, PENARTH
Date
13 Nov 2020
Current
Potential
49
77
Property Type
House
Built Form
Semi-Detached
Constructed
before 1900
Certificate History
13 Nov 2020
49
77
Total Floor Area
74 sq m
Current CO2 Emissions Level
4.5
Potential CO2 Emissions Level
1.7
CO2 per sq m per Year
61
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
1
Address
15 JOHN STREET
Date
22 Jul 2021
Current
Potential
47
77
Property Type
House
Built Form
End-Terrace
Constructed
1900-1929
Certificate History
22 Jul 2021
47
77
Total Floor Area
119 sq m
Current CO2 Emissions Level
7.3
Potential CO2 Emissions Level
2.9
CO2 per sq m per Year
61
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
2
Address
16 John Street
Date
27 Sep 2016
Current
Potential
55
83
Property Type
House
Built Form
Semi-Detached
Constructed
1900-1929
Certificate History
27 Sep 2016
55
83
Total Floor Area
101 sq m
Current CO2 Emissions Level
5.3
Potential CO2 Emissions Level
1.8
CO2 per sq m per Year
53
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
1
Address
18 John Street
Date
20 May 2024
Current
Potential
63
81
Property Type
House
Built Form
Semi-Detached
Constructed
1900-1929
Certificate History
20 May 2024
63
81
24 Jan 2011
43
46
Total Floor Area
148 sq m
Current CO2 Emissions Level
5.8
Potential CO2 Emissions Level
2.9
CO2 per sq m per Year
39
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
2
Address
19 John Street
Date
13 Oct 2024
Current
Potential
74
81
Property Type
House
Built Form
Semi-Detached
Constructed
1900-1929
Certificate History
13 Oct 2024
74
81
13 Oct 2024
74
81
7 Dec 2023
39
78
Total Floor Area
147 sq m
Current CO2 Emissions Level
3.9
Potential CO2 Emissions Level
2.8
CO2 per sq m per Year
26
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
1
Address
2 Admana Apartments, John Street
Date
18 Aug 2025
Current
Potential
71
81
Property Type
Flat
Built Form
End-Terrace
Constructed
2007-2011
Certificate History
18 Aug 2025
71
81
25 Apr 2012
78
79
Total Floor Area
41 sq m
Current CO2 Emissions Level
0.4
Potential CO2 Emissions Level
0.4
CO2 per sq m per Year
11
Mains Gas Available
No
Habitable Rooms
2
Number of Extensions
0
Address
2 John Street
Date
2 Dec 2014
Current
Potential
52
73
Property Type
House
Built Form
Mid-Terrace
Constructed
before 1900
Certificate History
2 Dec 2014
52
73
Total Floor Area
138 sq m
Current CO2 Emissions Level
7.1
Potential CO2 Emissions Level
3.8
CO2 per sq m per Year
52
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
0
Address
22 John Street
Date
23 Mar 2022
Current
Potential
63
86
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
23 Mar 2022
63
86
19 Mar 2009
63
65
Total Floor Area
99 sq m
Current CO2 Emissions Level
4.3
Potential CO2 Emissions Level
1.3
CO2 per sq m per Year
43
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
23 John Street
Date
22 Mar 2012
Current
Potential
52
54
Property Type
House
Built Form
Mid-Terrace
Constructed
before 1900
Certificate History
22 Mar 2012
52
54
Total Floor Area
80 sq m
Current CO2 Emissions Level
4.3
Potential CO2 Emissions Level
4.2
CO2 per sq m per Year
54
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
24 John Street
Date
13 Mar 2015
Current
Potential
53
81
Property Type
House
Built Form
Mid-Terrace
Constructed
before 1900
Certificate History
13 Mar 2015
53
81
Total Floor Area
109 sq m
Current CO2 Emissions Level
6.0
Potential CO2 Emissions Level
2.1
CO2 per sq m per Year
55
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
25 John Street
Date
21 Aug 2024
Current
Potential
64
87
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
21 Aug 2024
64
87
Total Floor Area
92 sq m
Current CO2 Emissions Level
3.8
Potential CO2 Emissions Level
1.0
CO2 per sq m per Year
41
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
26 John Street
Date
4 Sep 2011
Current
Potential
66
70
Property Type
House
Built Form
Mid-Terrace
Constructed
before 1900
Certificate History
4 Sep 2011
66
70
Total Floor Area
111 sq m
Current CO2 Emissions Level
4.3
Potential CO2 Emissions Level
3.7
CO2 per sq m per Year
40
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
27 John Street
Date
19 Apr 2011
Current
Potential
47
60
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
19 Apr 2011
47
60
16 Mar 2010
50
69
Total Floor Area
123 sq m
Current CO2 Emissions Level
7.7
Potential CO2 Emissions Level
5.8
CO2 per sq m per Year
63
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
2
Address
28 John Street
Date
18 Aug 2021
Current
Potential
57
86
Property Type
House
Built Form
Mid-Terrace
Constructed
before 1900
Certificate History
18 Aug 2021
57
86
16 May 2013
52
82
Total Floor Area
101 sq m
Current CO2 Emissions Level
4.7
Potential CO2 Emissions Level
1.1
CO2 per sq m per Year
47
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
29 John Street
Date
13 Jun 2024
Current
Potential
78
86
Property Type
House
Built Form
Mid-Terrace
Constructed
before 1900
Certificate History
13 Jun 2024
78
86
17 May 2023
64
88
Total Floor Area
137 sq m
Current CO2 Emissions Level
3.0
Potential CO2 Emissions Level
1.9
CO2 per sq m per Year
22
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
1
Address
3 Admana Apartments, John Street
Date
8 Dec 2023
Current
Potential
77
87
Property Type
Flat
Built Form
End-Terrace
Constructed
2007-2011
Certificate History
8 Dec 2023
77
87
24 Apr 2012
78
79
Total Floor Area
47 sq m
Current CO2 Emissions Level
1.3
Potential CO2 Emissions Level
1.4
CO2 per sq m per Year
28
Mains Gas Available
No
Habitable Rooms
2
Number of Extensions
0
Address
3 John Street
Date
20 Nov 2012
Current
Potential
51
87
Property Type
House
Built Form
Mid-Terrace
Constructed
before 1900
Certificate History
20 Nov 2012
51
87
Total Floor Area
93 sq m
Current CO2 Emissions Level
5.3
Potential CO2 Emissions Level
1.1
CO2 per sq m per Year
57
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
1
Address
30 John Street
Date
26 Oct 2021
Current
Potential
55
83
Property Type
House
Built Form
Mid-Terrace
Constructed
before 1900
Certificate History
26 Oct 2021
55
83
Total Floor Area
143 sq m
Current CO2 Emissions Level
7.1
Potential CO2 Emissions Level
2.5
CO2 per sq m per Year
50
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
1
Address
33 John Street
Date
31 Oct 2016
Current
Potential
55
86
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
31 Oct 2016
55
86
12 Jul 2009
65
69
Total Floor Area
123 sq m
Current CO2 Emissions Level
6.3
Potential CO2 Emissions Level
1.7
CO2 per sq m per Year
51
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
34 John Street
Date
19 Mar 2020
Current
Potential
62
88
Property Type
House
Built Form
Mid-Terrace
Constructed
before 1900
Certificate History
19 Mar 2020
62
88
Total Floor Area
89 sq m
Current CO2 Emissions Level
4.0
Potential CO2 Emissions Level
1.0
CO2 per sq m per Year
45
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
35 John Street
Date
4 Nov 2014
Current
Potential
66
83
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
4 Nov 2014
66
83
Total Floor Area
111 sq m
Current CO2 Emissions Level
4.0
Potential CO2 Emissions Level
1.8
CO2 per sq m per Year
36
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
1
Address
36 John Street
Date
30 Jan 2025
Current
Potential
67
86
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
30 Jan 2025
67
86
Total Floor Area
96 sq m
Current CO2 Emissions Level
3.6
Potential CO2 Emissions Level
1.3
CO2 per sq m per Year
38
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
37 John Street
Date
30 Oct 2019
Current
Potential
39
79
Property Type
House
Built Form
Semi-Detached
Constructed
1900-1929
Certificate History
30 Oct 2019
39
79
Total Floor Area
103 sq m
Current CO2 Emissions Level
7.1
Potential CO2 Emissions Level
2.1
CO2 per sq m per Year
69
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
4 Admana Apartments, John Street
Date
24 Feb 2025
Current
Potential
72
83
Property Type
Flat
Built Form
End-Terrace
Constructed
2007-2011
Certificate History
24 Feb 2025
72
83
25 Apr 2012
74
75
Total Floor Area
40 sq m
Current CO2 Emissions Level
1.4
Potential CO2 Emissions Level
1.5
CO2 per sq m per Year
36
Mains Gas Available
No
Habitable Rooms
2
Number of Extensions
0
Address
6 John Street
Date
24 Nov 2017
Current
Potential
47
83
Property Type
House
Built Form
Mid-Terrace
Constructed
before 1900
Certificate History
24 Nov 2017
47
83
Total Floor Area
92 sq m
Current CO2 Emissions Level
5.9
Potential CO2 Emissions Level
1.7
CO2 per sq m per Year
64
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
2
Address
7 John Street
Date
18 Sep 2014
Current
Potential
44
79
Property Type
House
Built Form
Mid-Terrace
Constructed
before 1900
Certificate History
18 Sep 2014
44
79
Total Floor Area
94 sq m
Current CO2 Emissions Level
5.6
Potential CO2 Emissions Level
1.8
CO2 per sq m per Year
60
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
1
Address
Top Floor Flat, 8, John Street
Date
27 Jul 2020
Current
Potential
70
76
Property Type
Flat
Built Form
Mid-Terrace
Constructed
before 1900
Certificate History
27 Jul 2020
70
76
19 Apr 2010
59
67
Total Floor Area
59 sq m
Current CO2 Emissions Level
2.1
Potential CO2 Emissions Level
1.6
CO2 per sq m per Year
36
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
1
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 2026.