PROPERTY ENERGY EFFICIENCY CERTIFICATE DETAILS
Johnston Road, CARDIFF, CF14 5HJ
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 Johnston Road, CF14 5HJ 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 Johnston Road, CARDIFF, CF14 5HJ
Period Covered:
2008 - 31 January 2025
Address
Inspection Date
Current
Potential
Property Type
Built Form
Constructed
Address
102 Johnston Road, Llanishen
Date
9 Dec 2024
Current
Potential
70
85
Property Type
House
Built Form
Semi-Detached
Constructed
1976-1982
Certificate History
9 Dec 2024
70
85
Total Floor Area
87 sq m
Current CO2 Emissions Level
3.0
Potential CO2 Emissions Level
1.4
CO2 per sq m per Year
34
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
104 Johnston Road, Llanishen
Date
4 Aug 2014
Current
Potential
71
87
Property Type
House
Built Form
Mid-Terrace
Constructed
1950-1966
Certificate History
4 Aug 2014
71
87
26 Sep 2011
46
65
Total Floor Area
95 sq m
Current CO2 Emissions Level
3.0
Potential CO2 Emissions Level
1.1
CO2 per sq m per Year
31
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
105 Johnston Road, Llanishen
Date
28 May 2019
Current
Potential
61
79
Property Type
House
Built Form
Semi-Detached
Constructed
1950-1966
Certificate History
28 May 2019
61
79
Total Floor Area
71 sq m
Current CO2 Emissions Level
3.6
Potential CO2 Emissions Level
1.8
CO2 per sq m per Year
50
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
1
Address
106 Johnston Road, Llanishen
Date
27 Aug 2019
Current
Potential
39
89
Property Type
House
Built Form
Mid-Terrace
Constructed
1950-1966
Certificate History
27 Aug 2019
39
89
Total Floor Area
72 sq m
Current CO2 Emissions Level
4.2
Potential CO2 Emissions Level
0.7
CO2 per sq m per Year
58
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
108 Johnston Road, Llanishen
Date
28 Feb 2018
Current
Potential
68
80
Property Type
House
Built Form
End-Terrace
Constructed
1967-1975
Certificate History
28 Feb 2018
68
80
Total Floor Area
100 sq m
Current CO2 Emissions Level
3.7
Potential CO2 Emissions Level
2.3
CO2 per sq m per Year
37
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
113 Johnston Road, Llanishen
Date
27 Mar 2022
Current
Potential
63
83
Property Type
House
Built Form
Semi-Detached
Constructed
1930-1949
Certificate History
27 Mar 2022
63
83
10 Oct 2008
58
72
Total Floor Area
83 sq m
Current CO2 Emissions Level
3.5
Potential CO2 Emissions Level
1.4
CO2 per sq m per Year
42
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
114 Johnston Road, Llanishen
Date
4 Dec 2014
Current
Potential
44
85
Property Type
House
Built Form
Semi-Detached
Constructed
1950-1966
Certificate History
4 Dec 2014
44
85
Total Floor Area
99 sq m
Current CO2 Emissions Level
6.7
Potential CO2 Emissions Level
1.4
CO2 per sq m per Year
67
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
116 Johnston Road, Llanishen
Date
19 Jun 2012
Current
Potential
67
86
Property Type
House
Built Form
Mid-Terrace
Constructed
1950-1966
Certificate History
19 Jun 2012
67
86
Total Floor Area
97 sq m
Current CO2 Emissions Level
3.4
Potential CO2 Emissions Level
1.3
CO2 per sq m per Year
36
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
118 Johnston Road, Llanishen
Date
17 May 2010
Current
Potential
47
76
Property Type
House
Built Form
Mid-Terrace
Constructed
1950-1966
Certificate History
17 May 2010
47
76
Total Floor Area
101 sq m
Current CO2 Emissions Level
6.4
Potential CO2 Emissions Level
2.7
CO2 per sq m per Year
71
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
121 Johnston Road, Llanishen
Date
6 Feb 2014
Current
Potential
67
82
Property Type
House
Built Form
Semi-Detached
Constructed
1950-1966
Certificate History
6 Feb 2014
67
82
Total Floor Area
96 sq m
Current CO2 Emissions Level
3.2
Potential CO2 Emissions Level
1.5
CO2 per sq m per Year
33
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
0
Address
123 Johnston Road, Llanishen
Date
9 Oct 2013
Current
Potential
62
85
Property Type
House
Built Form
Semi-Detached
Constructed
1950-1966
Certificate History
9 Oct 2013
62
85
Total Floor Area
99 sq m
Current CO2 Emissions Level
4.2
Potential CO2 Emissions Level
1.4
CO2 per sq m per Year
42
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
1
Address
124 Johnston Road, Llanishen
Date
6 Nov 2014
Current
Potential
34
87
Property Type
House
Built Form
Mid-Terrace
Constructed
1950-1966
Certificate History
6 Nov 2014
34
87
Total Floor Area
107 sq m
Current CO2 Emissions Level
8.6
Potential CO2 Emissions Level
1.2
CO2 per sq m per Year
80
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
126 Johnston Road, Llanishen
Date
2 Dec 2024
Current
Potential
74
85
Property Type
House
Built Form
Mid-Terrace
Constructed
1930-1949
Certificate History
2 Dec 2024
74
85
Total Floor Area
97 sq m
Current CO2 Emissions Level
2.8
Potential CO2 Emissions Level
1.4
CO2 per sq m per Year
29
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
128 Johnston Road, Llanishen
Date
7 May 2015
Current
Potential
66
80
Property Type
House
Built Form
End-Terrace
Constructed
1950-1966
Certificate History
7 May 2015
66
80
Total Floor Area
94 sq m
Current CO2 Emissions Level
3.6
Potential CO2 Emissions Level
2.1
CO2 per sq m per Year
39
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
0
Address
129 Johnston Road, Llanishen
Date
25 Nov 2024
Current
Potential
54
86
Property Type
House
Built Form
Semi-Detached
Constructed
1950-1966
Certificate History
25 Nov 2024
54
86
Total Floor Area
81 sq m
Current CO2 Emissions Level
4.6
Potential CO2 Emissions Level
1.2
CO2 per sq m per Year
57
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
130 Johnston Road, Llanishen
Date
4 Jan 2014
Current
Potential
58
79
Property Type
House
Built Form
End-Terrace
Constructed
1950-1966
Certificate History
4 Jan 2014
58
79
Total Floor Area
117 sq m
Current CO2 Emissions Level
4.7
Potential CO2 Emissions Level
2.0
CO2 per sq m per Year
41
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
1
Address
131 Johnston Road, Llanishen
Date
16 Nov 2022
Current
Potential
63
83
Property Type
House
Built Form
Detached
Constructed
1930-1949
Certificate History
16 Nov 2022
63
83
Total Floor Area
88 sq m
Current CO2 Emissions Level
3.8
Potential CO2 Emissions Level
1.6
CO2 per sq m per Year
43
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
1
Address
132 Johnston Road, Llanishen
Date
23 Oct 2013
Current
Potential
61
85
Property Type
House
Built Form
Mid-Terrace
Constructed
1950-1966
Certificate History
23 Oct 2013
61
85
Total Floor Area
119 sq m
Current CO2 Emissions Level
4.9
Potential CO2 Emissions Level
1.6
CO2 per sq m per Year
41
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
1
Address
133 Johnston Road, Llanishen
Date
7 Jul 2015
Current
Potential
41
72
Property Type
House
Built Form
Semi-Detached
Constructed
1950-1966
Certificate History
7 Jul 2015
41
72
Total Floor Area
113 sq m
Current CO2 Emissions Level
8.1
Potential CO2 Emissions Level
3.7
CO2 per sq m per Year
72
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
1
Address
134 Johnston Road, Llanishen
Date
15 Mar 2018
Current
Potential
72
84
Property Type
House
Built Form
Mid-Terrace
Constructed
1967-1975
Certificate History
15 Mar 2018
72
84
Total Floor Area
98 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
5
Number of Extensions
0
Address
135 Johnston Road, Llanishen
Date
18 Nov 2010
Current
Potential
70
76
Property Type
House
Built Form
Semi-Detached
Constructed
1950-1966
Certificate History
18 Nov 2010
70
76
Total Floor Area
93 sq m
Current CO2 Emissions Level
3.4
Potential CO2 Emissions Level
2.8
CO2 per sq m per Year
37
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
1
Address
136 Johnston Road, Llanishen
Date
24 Jul 2019
Current
Potential
60
77
Property Type
House
Built Form
End-Terrace
Constructed
1950-1966
Certificate History
24 Jul 2019
60
77
8 Apr 2010
69
71
Total Floor Area
98 sq m
Current CO2 Emissions Level
4.2
Potential CO2 Emissions Level
2.3
CO2 per sq m per Year
43
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
139 Johnston Road, Llanishen
Date
8 Jan 2019
Current
Potential
72
86
Property Type
House
Built Form
Semi-Detached
Constructed
1950-1966
Certificate History
8 Jan 2019
72
86
Total Floor Area
85 sq m
Current CO2 Emissions Level
2.6
Potential CO2 Emissions Level
1.2
CO2 per sq m per Year
31
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
140 Johnston Road, Llanishen
Date
8 Jan 2025
Current
Potential
77
79
Property Type
House
Built Form
Semi-Detached
Constructed
1950-1966
Certificate History
8 Jan 2025
77
79
25 Jun 2018
75
78
27 Jun 2014
78
80
29 Oct 2013
69
84
Total Floor Area
112 sq m
Current CO2 Emissions Level
3.4
Potential CO2 Emissions Level
3.0
CO2 per sq m per Year
30
Mains Gas Available
Yes
Habitable Rooms
6
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 2025.