PROPERTY ENERGY EFFICIENCY CERTIFICATE DETAILS
Gwern Heulog, PORTH, CF39 8BJ

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 Gwern Heulog, CF39 8BJ 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 Gwern Heulog, PORTH, CF39 8BJ
Period Covered: 2008 - 31 October 2024

Address
Inspection Date
Current
Potential
Property Type
Built Form
Constructed
Address
10 Gwern Heulog, Tonyrefail
Date
25 May 2010
Current
Potential
68
72
Property Type
House
Built Form
Detached
Constructed
1996-2002
+
Certificate History
25 May 2010
68
72
Total Floor Area
121 sq m
Current CO2 Emissions Level
4.1
Potential CO2 Emissions Level
3.5
CO2 per sq m per Year
34
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
0
Address
11 Gwern Heulog, Tonyrefail
Date
31 Mar 2015
Current
Potential
58
78
Property Type
House
Built Form
Detached
Constructed
1996-2002
+
Certificate History
31 Mar 2015
58
78
Total Floor Area
92 sq m
Current CO2 Emissions Level
4.6
Potential CO2 Emissions Level
2.1
CO2 per sq m per Year
50
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
13 Gwern Heulog, Tonyrefail
Date
16 Nov 2012
Current
Potential
66
81
Property Type
House
Built Form
Detached
Constructed
1996-2002
+
Certificate History
16 Nov 2012
66
81
Total Floor Area
108 sq m
Current CO2 Emissions Level
3.7
Potential CO2 Emissions Level
1.8
CO2 per sq m per Year
34
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
1
Address
15 Gwern Heulog, Tonyrefail
Date
4 Aug 2022
Current
Potential
69
84
Property Type
House
Built Form
Semi-Detached
Constructed
1996-2002
+
Certificate History
4 Aug 2022
69
84
14 Nov 2011
70
75
Total Floor Area
116 sq m
Current CO2 Emissions Level
4.1
Potential CO2 Emissions Level
2.2
CO2 per sq m per Year
35
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
2
Address
17 Gwern Heulog, Tonyrefail
Date
2 Nov 2010
Current
Potential
76
79
Property Type
House
Built Form
Detached
Constructed
2003-2006
+
Certificate History
2 Nov 2010
76
79
Total Floor Area
97 sq m
Current CO2 Emissions Level
2.8
Potential CO2 Emissions Level
2.5
CO2 per sq m per Year
29
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
2 Gwern Heulog, Tonyrefail
Date
11 Feb 2013
Current
Potential
68
81
Property Type
House
Built Form
Detached
Constructed
1996-2002
+
Certificate History
11 Feb 2013
68
81
Total Floor Area
114 sq m
Current CO2 Emissions Level
3.7
Potential CO2 Emissions Level
1.9
CO2 per sq m per Year
32
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
22 Gwern Heulog, Tonyrefail
Date
19 Sep 2024
Current
Potential
74
89
Property Type
House
Built Form
Semi-Detached
Constructed
2007-2011
+
Certificate History
19 Sep 2024
74
89
22 Jan 2010
76
81
9 Feb 2009
76
81
13 Oct 2008
78
82
Total Floor Area
83 sq m
Current CO2 Emissions Level
2.5
Potential CO2 Emissions Level
0.9
CO2 per sq m per Year
30
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
23 Gwern Heulog, Tonyrefail
Date
14 Jan 2014
Current
Potential
67
85
Property Type
House
Built Form
Semi-Detached
Constructed
1996-2002
+
Certificate History
14 Jan 2014
67
85
14 Jan 2014
40
88
23 Aug 2012
72
89
Total Floor Area
83 sq m
Current CO2 Emissions Level
2.9
Potential CO2 Emissions Level
1.0
CO2 per sq m per Year
35
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
24 Gwern Heulog, Tonyrefail
Date
28 Jan 2015
Current
Potential
59
87
Property Type
House
Built Form
Semi-Detached
Constructed
2003-2006
+
Certificate History
28 Jan 2015
59
87
18 May 2011
69
74
Total Floor Area
90 sq m
Current CO2 Emissions Level
4.7
Potential CO2 Emissions Level
1.3
CO2 per sq m per Year
53
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
25 Gwern Heulog, Tonyrefail
Date
23 Dec 2014
Current
Potential
58
87
Property Type
House
Built Form
Semi-Detached
Constructed
2003-2006
+
Certificate History
23 Dec 2014
58
87
Total Floor Area
90 sq m
Current CO2 Emissions Level
4.8
Potential CO2 Emissions Level
1.3
CO2 per sq m per Year
53
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
26 Gwern Heulog, Tonyrefail
Date
2 Aug 2016
Current
Potential
76
89
Property Type
House
Built Form
Semi-Detached
Constructed
2003-2006
+
Certificate History
2 Aug 2016
76
89
Total Floor Area
74 sq m
Current CO2 Emissions Level
2.0
Potential CO2 Emissions Level
0.8
CO2 per sq m per Year
27
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
27 Gwern Heulog, Tonyrefail
Date
3 Aug 2022
Current
Potential
71
82
Property Type
House
Built Form
Detached
Constructed
1996-2002
+
Certificate History
3 Aug 2022
71
82
Total Floor Area
171 sq m
Current CO2 Emissions Level
5.4
Potential CO2 Emissions Level
3.4
CO2 per sq m per Year
32
Mains Gas Available
Yes
Habitable Rooms
7
Number of Extensions
1
Address
28 Gwern Heulog, Tonyrefail
Date
3 Apr 2022
Current
Potential
68
84
Property Type
House
Built Form
Semi-Detached
Constructed
1983-1990
+
Certificate History
3 Apr 2022
68
84
Total Floor Area
82 sq m
Current CO2 Emissions Level
3.3
Potential CO2 Emissions Level
1.6
CO2 per sq m per Year
40
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
3 Gwern Heulog, Tonyrefail
Date
11 May 2023
Current
Potential
85
90
Property Type
House
Built Form
Detached
Constructed
1996-2002
+
Certificate History
11 May 2023
85
90
Total Floor Area
122 sq m
Current CO2 Emissions Level
2.4
Potential CO2 Emissions Level
1.6
CO2 per sq m per Year
19
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
1
Address
31 Gwern Heulog, Tonyrefail
Date
26 Jan 2015
Current
Potential
54
80
Property Type
House
Built Form
Detached
Constructed
2003-2006
+
Certificate History
26 Jan 2015
54
80
Total Floor Area
150 sq m
Current CO2 Emissions Level
7.5
Potential CO2 Emissions Level
3.1
CO2 per sq m per Year
50
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
1
Address
32 Gwern Heulog, Tonyrefail
Date
12 Aug 2013
Current
Potential
68
83
Property Type
House
Built Form
Detached
Constructed
2003-2006
+
Certificate History
12 Aug 2013
68
83
Total Floor Area
104 sq m
Current CO2 Emissions Level
3.3
Potential CO2 Emissions Level
1.5
CO2 per sq m per Year
32
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
33 Gwern Heulog, Tonyrefail
Date
12 Oct 2014
Current
Potential
65
82
Property Type
House
Built Form
Semi-Detached
Constructed
1996-2002
+
Certificate History
12 Oct 2014
65
82
Total Floor Area
122 sq m
Current CO2 Emissions Level
4.2
Potential CO2 Emissions Level
2.0
CO2 per sq m per Year
35
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
1
Address
36 Gwern Heulog, Tonyrefail
Date
10 Mar 2023
Current
Potential
74
81
Property Type
House
Built Form
Semi-Detached
Constructed
2003-2006
+
Certificate History
10 Mar 2023
74
81
Total Floor Area
187 sq m
Current CO2 Emissions Level
4.7
Potential CO2 Emissions Level
3.6
CO2 per sq m per Year
25
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
1
Address
38 Gwern Heulog, Tonyrefail
Date
11 Oct 2012
Current
Potential
65
80
Property Type
House
Built Form
Detached
Constructed
1996-2002
+
Certificate History
11 Oct 2012
65
80
Total Floor Area
116 sq m
Current CO2 Emissions Level
4.0
Potential CO2 Emissions Level
2.1
CO2 per sq m per Year
34
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
1
Address
39 Gwern Heulog, Tonyrefail
Date
31 Mar 2015
Current
Potential
59
81
Property Type
House
Built Form
Semi-Detached
Constructed
1996-2002
+
Certificate History
31 Mar 2015
59
81
Total Floor Area
100 sq m
Current CO2 Emissions Level
4.7
Potential CO2 Emissions Level
2.0
CO2 per sq m per Year
47
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
4 Gwern Heulog, Tonyrefail
Date
23 Dec 2014
Current
Potential
57
77
Property Type
House
Built Form
Detached
Constructed
1996-2002
+
Certificate History
23 Dec 2014
57
77
Total Floor Area
224 sq m
Current CO2 Emissions Level
9.9
Potential CO2 Emissions Level
5.2
CO2 per sq m per Year
44
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
0
Address
40 Gwern Heulog, Tonyrefail
Date
18 Feb 2015
Current
Potential
59
78
Property Type
House
Built Form
Semi-Detached
Constructed
2003-2006
+
Certificate History
18 Feb 2015
59
78
Total Floor Area
123 sq m
Current CO2 Emissions Level
5.3
Potential CO2 Emissions Level
2.7
CO2 per sq m per Year
43
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
1
Address
41 Gwern Heulog, Tonyrefail
Date
1 Apr 2015
Current
Potential
52
79
Property Type
House
Built Form
Detached
Constructed
1996-2002
+
Certificate History
1 Apr 2015
52
79
25 Oct 2013
70
82
Total Floor Area
224 sq m
Current CO2 Emissions Level
11.0
Potential CO2 Emissions Level
4.8
CO2 per sq m per Year
50
Mains Gas Available
Yes
Habitable Rooms
8
Number of Extensions
0
Address
43 Gwern Heulog, Tonyrefail
Date
22 Dec 2014
Current
Potential
56
84
Property Type
House
Built Form
Detached
Constructed
1996-2002
+
Certificate History
22 Dec 2014
56
84
Total Floor Area
96 sq m
Current CO2 Emissions Level
5.4
Potential CO2 Emissions Level
1.8
CO2 per sq m per Year
57
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
45 Gwern Heulog, Tonyrefail
Date
23 Dec 2014
Current
Potential
48
80
Property Type
House
Built Form
Detached
Constructed
1996-2002
+
Certificate History
23 Dec 2014
48
80
18 Apr 2013
65
81
Total Floor Area
129 sq m
Current CO2 Emissions Level
7.6
Potential CO2 Emissions Level
2.7
CO2 per sq m per Year
58
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
0
Address
46 Gwern Heulog, Tonyrefail
Date
2 May 2018
Current
Potential
71
85
Property Type
House
Built Form
Detached
Constructed
1996-2002
+
Certificate History
2 May 2018
71
85
Total Floor Area
116 sq m
Current CO2 Emissions Level
3.8
Potential CO2 Emissions Level
1.9
CO2 per sq m per Year
33
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
47 Gwern Heulog, Tonyrefail
Date
16 Dec 2014
Current
Potential
55
84
Property Type
House
Built Form
Detached
Constructed
1996-2002
+
Certificate History
16 Dec 2014
55
84
Total Floor Area
95 sq m
Current CO2 Emissions Level
5.6
Potential CO2 Emissions Level
1.8
CO2 per sq m per Year
59
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
5 Gwern Heulog, Tonyrefail
Date
27 Jan 2015
Current
Potential
58
80
Property Type
House
Built Form
Detached
Constructed
1996-2002
+
Certificate History
27 Jan 2015
58
80
Total Floor Area
127 sq m
Current CO2 Emissions Level
6.4
Potential CO2 Emissions Level
2.9
CO2 per sq m per Year
50
Mains Gas Available
Yes
Habitable Rooms
7
Number of Extensions
0
Address
8 Gwern Heulog, Tonyrefail
Date
7 Aug 2016
Current
Potential
64
81
Property Type
House
Built Form
Detached
Constructed
1996-2002
+
Certificate History
7 Aug 2016
64
81
Total Floor Area
94 sq m
Current CO2 Emissions Level
4.0
Potential CO2 Emissions Level
1.9
CO2 per sq m per Year
42
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.