PROPERTY ENERGY EFFICIENCY CERTIFICATE DETAILS
Gwynedd Avenue, SWANSEA, SA1 6LG

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 Gwynedd Avenue, SA1 6LG 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 Gwynedd Avenue, SWANSEA, SA1 6LG
Period Covered: 2008 - 31 October 2024

Address
Inspection Date
Current
Potential
Property Type
Built Form
Constructed
Address
12 Gwynedd Avenue, Townhill
Date
23 Aug 2017
Current
Potential
70
87
Property Type
House
Built Form
Mid-Terrace
Constructed
1930-1949
+
Certificate History
23 Aug 2017
70
87
Total Floor Area
62 sq m
Current CO2 Emissions Level
2.1
Potential CO2 Emissions Level
0.7
CO2 per sq m per Year
35
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
1
Address
14 Gwynedd Avenue, Townhill
Date
18 Jul 2022
Current
Potential
72
88
Property Type
House
Built Form
End-Terrace
Constructed
1930-1949
+
Certificate History
18 Jul 2022
72
88
Total Floor Area
69 sq m
Current CO2 Emissions Level
2.1
Potential CO2 Emissions Level
0.6
CO2 per sq m per Year
31
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
17 Gwynedd Avenue, Townhill
Date
25 Apr 2018
Current
Potential
69
84
Property Type
House
Built Form
Mid-Terrace
Constructed
1930-1949
+
Certificate History
25 Apr 2018
69
84
14 Aug 2011
60
71
Total Floor Area
72 sq m
Current CO2 Emissions Level
2.4
Potential CO2 Emissions Level
0.9
CO2 per sq m per Year
33
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
18 Gwynedd Avenue, Townhill
Date
25 Apr 2018
Current
Potential
72
88
Property Type
House
Built Form
Semi-Detached
Constructed
1900-1929
+
Certificate History
25 Apr 2018
72
88
Total Floor Area
57 sq m
Current CO2 Emissions Level
1.9
Potential CO2 Emissions Level
0.6
CO2 per sq m per Year
33
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
19 Gwynedd Avenue, Townhill
Date
31 Jan 2013
Current
Potential
59
89
Property Type
House
Built Form
End-Terrace
Constructed
1950-1966
+
Certificate History
31 Jan 2013
59
89
Total Floor Area
65 sq m
Current CO2 Emissions Level
3.4
Potential CO2 Emissions Level
0.6
CO2 per sq m per Year
52
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
2 Gwynedd Avenue, Townhill
Date
23 Sep 2013
Current
Potential
47
84
Property Type
House
Built Form
Semi-Detached
Constructed
1930-1949
+
Certificate History
23 Sep 2013
47
84
2 May 2013
49
89
Total Floor Area
51 sq m
Current CO2 Emissions Level
3.9
Potential CO2 Emissions Level
0.8
CO2 per sq m per Year
76
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
20 Gwynedd Avenue, Townhill
Date
26 Jun 2022
Current
Potential
71
86
Property Type
House
Built Form
End-Terrace
Constructed
1967-1975
+
Certificate History
26 Jun 2022
71
86
16 Jun 2009
56
74
Total Floor Area
69 sq m
Current CO2 Emissions Level
2.3
Potential CO2 Emissions Level
0.9
CO2 per sq m per Year
33
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
21 Gwynedd Avenue, Townhill
Date
18 Feb 2010
Current
Potential
60
75
Property Type
House
Built Form
Semi-Detached
Constructed
1930-1949
+
Certificate History
18 Feb 2010
60
75
Total Floor Area
57 sq m
Current CO2 Emissions Level
3.6
Potential CO2 Emissions Level
2.2
CO2 per sq m per Year
63
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
22 Gwynedd Avenue, Townhill
Date
24 Jul 2012
Current
Potential
53
84
Property Type
House
Built Form
Mid-Terrace
Constructed
1930-1949
+
Certificate History
24 Jul 2012
53
84
Total Floor Area
60 sq m
Current CO2 Emissions Level
3.8
Potential CO2 Emissions Level
1.1
CO2 per sq m per Year
63
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
24 Gwynedd Avenue, Townhill
Date
30 Apr 2020
Current
Potential
67
83
Property Type
House
Built Form
Mid-Terrace
Constructed
1950-1966
+
Certificate History
30 Apr 2020
67
83
Total Floor Area
60 sq m
Current CO2 Emissions Level
2.2
Potential CO2 Emissions Level
0.9
CO2 per sq m per Year
37
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
26 Gwynedd Avenue, Townhill
Date
25 Sep 2011
Current
Potential
57
70
Property Type
House
Built Form
Mid-Terrace
Constructed
1930-1949
+
Certificate History
25 Sep 2011
57
70
Total Floor Area
59 sq m
Current CO2 Emissions Level
3.6
Potential CO2 Emissions Level
2.3
CO2 per sq m per Year
61
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
28 Gwynedd Avenue, Townhill
Date
29 Apr 2012
Current
Potential
57
88
Property Type
House
Built Form
Mid-Terrace
Constructed
1930-1949
+
Certificate History
29 Apr 2012
57
88
13 Oct 2010
60
75
Total Floor Area
60 sq m
Current CO2 Emissions Level
3.4
Potential CO2 Emissions Level
0.6
CO2 per sq m per Year
57
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
30 Gwynedd Avenue, Townhill
Date
12 May 2011
Current
Potential
70
72
Property Type
House
Built Form
End-Terrace
Constructed
1930-1949
+
Certificate History
12 May 2011
70
72
Total Floor Area
69 sq m
Current CO2 Emissions Level
2.5
Potential CO2 Emissions Level
2.3
CO2 per sq m per Year
36
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
32 Gwynedd Avenue, Townhill
Date
21 Feb 2012
Current
Potential
55
64
Property Type
House
Built Form
End-Terrace
Constructed
1930-1949
+
Certificate History
21 Feb 2012
55
64
Total Floor Area
69 sq m
Current CO2 Emissions Level
4.3
Potential CO2 Emissions Level
3.2
CO2 per sq m per Year
62
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
34 Gwynedd Avenue, Townhill
Date
26 Sep 2024
Current
Potential
68
87
Property Type
House
Built Form
Mid-Terrace
Constructed
1950-1966
+
Certificate History
26 Sep 2024
68
87
26 Sep 2024
65
86
8 Oct 2014
55
86
17 Sep 2013
51
86
Total Floor Area
66 sq m
Current CO2 Emissions Level
2.5
Potential CO2 Emissions Level
0.8
CO2 per sq m per Year
38
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
2
Address
35 Gwynedd Avenue, Townhill
Date
25 Apr 2018
Current
Potential
71
86
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
+
Certificate History
25 Apr 2018
71
86
Total Floor Area
70 sq m
Current CO2 Emissions Level
2.3
Potential CO2 Emissions Level
0.9
CO2 per sq m per Year
32
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
1
Address
37 Gwynedd Avenue, Townhill
Date
25 Apr 2018
Current
Potential
69
84
Property Type
House
Built Form
Mid-Terrace
Constructed
1930-1949
+
Certificate History
25 Apr 2018
69
84
Total Floor Area
69 sq m
Current CO2 Emissions Level
2.3
Potential CO2 Emissions Level
1.0
CO2 per sq m per Year
33
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
4 Gwynedd Avenue, Townhill
Date
19 May 2019
Current
Potential
44
85
Property Type
House
Built Form
End-Terrace
Constructed
1950-1966
+
Certificate History
19 May 2019
44
85
3 Jun 2013
47
86
Total Floor Area
68 sq m
Current CO2 Emissions Level
5.1
Potential CO2 Emissions Level
1.0
CO2 per sq m per Year
75
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
40 Gwynedd Avenue, Townhill
Date
30 Sep 2021
Current
Potential
63
82
Property Type
House
Built Form
Mid-Terrace
Constructed
1950-1966
+
Certificate History
30 Sep 2021
63
82
3 Feb 2009
50
65
Total Floor Area
62 sq m
Current CO2 Emissions Level
2.9
Potential CO2 Emissions Level
1.2
CO2 per sq m per Year
46
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
1
Address
42 Gwynedd Avenue, Townhill
Date
25 Apr 2018
Current
Potential
72
87
Property Type
House
Built Form
End-Terrace
Constructed
1900-1929
+
Certificate History
25 Apr 2018
72
87
23 Jan 2014
55
73
Total Floor Area
69 sq m
Current CO2 Emissions Level
2.1
Potential CO2 Emissions Level
0.8
CO2 per sq m per Year
31
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
43 Gwynedd Avenue, Townhill
Date
27 Feb 2013
Current
Potential
59
84
Property Type
House
Built Form
Semi-Detached
Constructed
1930-1949
+
Certificate History
27 Feb 2013
59
84
Total Floor Area
80 sq m
Current CO2 Emissions Level
3.9
Potential CO2 Emissions Level
1.2
CO2 per sq m per Year
48
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
44 Gwynedd Avenue, Townhill
Date
15 Nov 2021
Current
Potential
59
80
Property Type
House
Built Form
End-Terrace
Constructed
1967-1975
+
Certificate History
15 Nov 2021
59
80
Total Floor Area
80 sq m
Current CO2 Emissions Level
3.9
Potential CO2 Emissions Level
1.6
CO2 per sq m per Year
48
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
2
Address
46 Gwynedd Avenue, Townhill
Date
7 Sep 2011
Current
Potential
53
64
Property Type
House
Built Form
Mid-Terrace
Constructed
1930-1949
+
Certificate History
7 Sep 2011
53
64
Total Floor Area
60 sq m
Current CO2 Emissions Level
4.0
Potential CO2 Emissions Level
2.9
CO2 per sq m per Year
66
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
47 Gwynedd Avenue, Townhill
Date
30 Oct 2008
Current
Potential
62
75
Property Type
House
Built Form
Semi-Detached
Constructed
1930-1949
+
Certificate History
30 Oct 2008
62
75
Total Floor Area
65 sq m
Current CO2 Emissions Level
3.6
Potential CO2 Emissions Level
2.4
CO2 per sq m per Year
56
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
48 Gwynedd Avenue, Townhill
Date
3 Oct 2013
Current
Potential
72
90
Property Type
House
Built Form
Mid-Terrace
Constructed
1930-1949
+
Certificate History
3 Oct 2013
72
90
26 Sep 2013
71
90
Total Floor Area
60 sq m
Current CO2 Emissions Level
1.9
Potential CO2 Emissions Level
0.4
CO2 per sq m per Year
32
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
49 Gwynedd Avenue, Townhill
Date
19 Sep 2013
Current
Potential
46
85
Property Type
House
Built Form
Semi-Detached
Constructed
1950-1966
+
Certificate History
19 Sep 2013
46
85
Total Floor Area
77 sq m
Current CO2 Emissions Level
5.3
Potential CO2 Emissions Level
1.1
CO2 per sq m per Year
68
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
51 Gwynedd Avenue, Townhill
Date
15 Jul 2009
Current
Potential
60
74
Property Type
House
Built Form
Semi-Detached
Constructed
1930-1949
+
Certificate History
15 Jul 2009
60
74
Total Floor Area
55 sq m
Current CO2 Emissions Level
3.4
Potential CO2 Emissions Level
2.2
CO2 per sq m per Year
62
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
53 Gwynedd Avenue, Townhill
Date
28 Sep 2015
Current
Potential
88
97
Property Type
House
Built Form
Semi-Detached
Constructed
1950-1966
+
Certificate History
28 Sep 2015
88
97
6 Jul 2015
41
84
20 Nov 2013
39
73
20 Nov 2013
59
88
Total Floor Area
100 sq m
Current CO2 Emissions Level
1.2
Potential CO2 Emissions Level
0.1
CO2 per sq m per Year
12
Mains Gas Available
Yes
Habitable Rooms
7
Number of Extensions
0
Address
55 Gwynedd Avenue, Townhill
Date
13 Apr 2023
Current
Potential
62
88
Property Type
House
Built Form
Mid-Terrace
Constructed
1930-1949
+
Certificate History
13 Apr 2023
62
88
20 Dec 2012
47
77
Total Floor Area
64 sq m
Current CO2 Emissions Level
3.0
Potential CO2 Emissions Level
0.6
CO2 per sq m per Year
46
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
59 Gwynedd Avenue, Townhill
Date
12 Mar 2013
Current
Potential
56
75
Property Type
House
Built Form
Semi-Detached
Constructed
1930-1949
+
Certificate History
12 Mar 2013
56
75
Total Floor Area
57 sq m
Current CO2 Emissions Level
3.1
Potential CO2 Emissions Level
1.6
CO2 per sq m per Year
54
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
6 Gwynedd Avenue, Townhill
Date
4 May 2023
Current
Potential
69
88
Property Type
House
Built Form
Mid-Terrace
Constructed
1930-1949
+
Certificate History
4 May 2023
69
88
4 Jan 2013
58
85
Total Floor Area
54 sq m
Current CO2 Emissions Level
2.0
Potential CO2 Emissions Level
0.6
CO2 per sq m per Year
37
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
61 Gwynedd Avenue, Townhill
Date
19 Feb 2010
Current
Potential
61
75
Property Type
House
Built Form
Semi-Detached
Constructed
1930-1949
+
Certificate History
19 Feb 2010
61
75
Total Floor Area
64 sq m
Current CO2 Emissions Level
3.7
Potential CO2 Emissions Level
2.4
CO2 per sq m per Year
58
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
63 Gwynedd Avenue, Townhill
Date
11 Jun 2020
Current
Potential
62
87
Property Type
House
Built Form
Semi-Detached
Constructed
1950-1966
+
Certificate History
11 Jun 2020
62
87
14 Nov 2015
39
87
Total Floor Area
66 sq m
Current CO2 Emissions Level
3.2
Potential CO2 Emissions Level
0.7
CO2 per sq m per Year
47
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
65 Gwynedd Avenue, Townhill
Date
26 Apr 2018
Current
Potential
58
86
Property Type
Bungalow
Built Form
Semi-Detached
Constructed
1930-1949
+
Certificate History
26 Apr 2018
58
86
23 Mar 2012
62
64
13 Mar 2012
62
64
Total Floor Area
66 sq m
Current CO2 Emissions Level
3.3
Potential CO2 Emissions Level
0.7
CO2 per sq m per Year
49
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
66 Gwynedd Avenue, Townhill
Date
26 Apr 2018
Current
Potential
72
87
Property Type
House
Built Form
End-Terrace
Constructed
1930-1949
+
Certificate History
26 Apr 2018
72
87
Total Floor Area
69 sq m
Current CO2 Emissions Level
2.2
Potential CO2 Emissions Level
0.8
CO2 per sq m per Year
31
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
67 Gwynedd Avenue, Townhill
Date
26 May 2009
Current
Potential
46
64
Property Type
House
Built Form
Semi-Detached
Constructed
1930-1949
+
Certificate History
26 May 2009
46
64
Total Floor Area
32 sq m
Current CO2 Emissions Level
5.3
Potential CO2 Emissions Level
3.5
CO2 per sq m per Year
82
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
69 Gwynedd Avenue, Townhill
Date
16 Nov 2010
Current
Potential
68
73
Property Type
House
Built Form
Semi-Detached
Constructed
1950-1966
+
Certificate History
16 Nov 2010
68
73
Total Floor Area
33 sq m
Current CO2 Emissions Level
2.8
Potential CO2 Emissions Level
2.4
CO2 per sq m per Year
49
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
71 Gwynedd Avenue, Townhill
Date
14 Jan 2009
Current
Potential
51
75
Property Type
House
Built Form
Semi-Detached
Constructed
1930-1949
+
Certificate History
14 Jan 2009
51
75
Total Floor Area
54 sq m
Current CO2 Emissions Level
4.3
Potential CO2 Emissions Level
2.1
CO2 per sq m per Year
80
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
8 Gwynedd Avenue, Townhill
Date
22 Jan 2013
Current
Potential
57
86
Property Type
House
Built Form
Mid-Terrace
Constructed
1930-1949
+
Certificate History
22 Jan 2013
57
86
20 May 2009
60
76
Total Floor Area
70 sq m
Current CO2 Emissions Level
3.8
Potential CO2 Emissions Level
0.9
CO2 per sq m per Year
54
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
9 Gwynedd Avenue, Townhill
Date
29 Mar 2009
Current
Potential
60
76
Property Type
House
Built Form
Semi-Detached
Constructed
1930-1949
+
Certificate History
29 Mar 2009
60
76
Total Floor Area
65 sq m
Current CO2 Emissions Level
3.8
Potential CO2 Emissions Level
2.2
CO2 per sq m per Year
58
Mains Gas Available
Yes
Habitable Rooms
3
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.

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