PROPERTY ENERGY EFFICIENCY CERTIFICATE DETAILS
Heol Y Llwynau, SWANSEA, SA8 4DH
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 Heol Y Llwynau, SA8 4DH 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 Heol Y Llwynau, SWANSEA, SA8 4DH
Period Covered:
2008 - 31 January 2025
Address
Inspection Date
Current
Potential
Property Type
Built Form
Constructed
Address
1 Heol y Llwynau, Trebanos, Pontardawe
Date
7 Sep 2017
Current
Potential
70
83
Property Type
House
Built Form
Semi-Detached
Constructed
1900-1929
Certificate History
7 Sep 2017
70
83
Total Floor Area
96 sq m
Current CO2 Emissions Level
3.4
Potential CO2 Emissions Level
1.9
CO2 per sq m per Year
36
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
10 Heol y Llwynau, Trebanos, Pontardawe
Date
4 Mar 2016
Current
Potential
69
86
Property Type
House
Built Form
Semi-Detached
Constructed
1950-1966
Certificate History
4 Mar 2016
69
86
12 Sep 2013
60
86
Total Floor Area
99 sq m
Current CO2 Emissions Level
3.7
Potential CO2 Emissions Level
1.6
CO2 per sq m per Year
37
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
11 Heol y Llwynau, Trebanos, Pontardawe
Date
31 Aug 2011
Current
Potential
63
72
Property Type
House
Built Form
Semi-Detached
Constructed
1930-1949
Certificate History
31 Aug 2011
63
72
Total Floor Area
97 sq m
Current CO2 Emissions Level
4.3
Potential CO2 Emissions Level
3.1
CO2 per sq m per Year
44
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
13 Heol y Llwynau, Trebanos, Pontardawe
Date
29 Mar 2020
Current
Potential
73
87
Property Type
House
Built Form
Semi-Detached
Constructed
1930-1949
Certificate History
29 Mar 2020
73
87
31 Aug 2011
59
69
Total Floor Area
95 sq m
Current CO2 Emissions Level
2.9
Potential CO2 Emissions Level
1.4
CO2 per sq m per Year
30
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
14 Heol y Llwynau, Trebanos, Pontardawe
Date
29 Mar 2020
Current
Potential
65
80
Property Type
House
Built Form
Semi-Detached
Constructed
1930-1949
Certificate History
29 Mar 2020
65
80
31 Aug 2011
53
64
Total Floor Area
82 sq m
Current CO2 Emissions Level
3.6
Potential CO2 Emissions Level
2.2
CO2 per sq m per Year
44
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
15 Heol y Llwynau, Trebanos, Pontardawe
Date
29 Mar 2020
Current
Potential
74
87
Property Type
House
Built Form
Semi-Detached
Constructed
1930-1949
Certificate History
29 Mar 2020
74
87
31 Aug 2011
67
67
Total Floor Area
95 sq m
Current CO2 Emissions Level
2.8
Potential CO2 Emissions Level
1.3
CO2 per sq m per Year
30
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
16 Heol y Llwynau, Trebanos, Pontardawe
Date
29 Mar 2020
Current
Potential
73
88
Property Type
House
Built Form
Semi-Detached
Constructed
1930-1949
Certificate History
29 Mar 2020
73
88
31 Aug 2011
67
67
Total Floor Area
82 sq m
Current CO2 Emissions Level
2.5
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
18 Heol y Llwynau, Trebanos, Pontardawe
Date
29 Mar 2020
Current
Potential
73
87
Property Type
House
Built Form
Semi-Detached
Constructed
1930-1949
Certificate History
29 Mar 2020
73
87
31 Aug 2011
58
67
Total Floor Area
82 sq m
Current CO2 Emissions Level
2.6
Potential CO2 Emissions Level
1.2
CO2 per sq m per Year
32
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
19 Heol y Llwynau, Trebanos, Pontardawe
Date
5 Aug 2018
Current
Potential
72
83
Property Type
House
Built Form
Semi-Detached
Constructed
1967-1975
Certificate History
5 Aug 2018
72
83
Total Floor Area
99 sq m
Current CO2 Emissions Level
3.2
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
20 Heol y Llwynau, Trebanos, Pontardawe
Date
29 Mar 2020
Current
Potential
73
87
Property Type
House
Built Form
Semi-Detached
Constructed
1930-1949
Certificate History
29 Mar 2020
73
87
31 Aug 2011
46
67
Total Floor Area
82 sq m
Current CO2 Emissions Level
2.6
Potential CO2 Emissions Level
1.2
CO2 per sq m per Year
32
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
23 Heol y Llwynau, Trebanos, Pontardawe
Date
29 Mar 2020
Current
Potential
70
83
Property Type
House
Built Form
Semi-Detached
Constructed
1930-1949
Certificate History
29 Mar 2020
70
83
31 Aug 2011
71
71
Total Floor Area
95 sq m
Current CO2 Emissions Level
3.3
Potential CO2 Emissions Level
1.9
CO2 per sq m per Year
35
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
24 Heol y Llwynau, Trebanos, Pontardawe
Date
24 Mar 2020
Current
Potential
68
83
Property Type
House
Built Form
Semi-Detached
Constructed
1930-1949
Certificate History
24 Mar 2020
68
83
31 Aug 2011
61
70
Total Floor Area
80 sq m
Current CO2 Emissions Level
3.1
Potential CO2 Emissions Level
1.7
CO2 per sq m per Year
39
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
0
Address
25 Heol Y Llwynau, Trebanos
Date
23 Jul 2023
Current
Potential
49
81
Property Type
House
Built Form
Semi-Detached
Constructed
1930-1949
Certificate History
23 Jul 2023
49
81
Total Floor Area
89 sq m
Current CO2 Emissions Level
6.2
Potential CO2 Emissions Level
2.1
CO2 per sq m per Year
69
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
2
Address
25 Heol y Llwynau, Trebanos, Pontardawe
Date
10 Aug 2011
Current
Potential
49
70
Property Type
House
Built Form
Semi-Detached
Constructed
1930-1949
Certificate History
10 Aug 2011
49
70
Total Floor Area
91 sq m
Current CO2 Emissions Level
5.8
Potential CO2 Emissions Level
3.1
CO2 per sq m per Year
64
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
1
Address
29 Heol y Llwynau, Trebanos, Pontardawe
Date
29 Mar 2020
Current
Potential
72
86
Property Type
House
Built Form
Semi-Detached
Constructed
1930-1949
Certificate History
29 Mar 2020
72
86
31 Aug 2011
72
72
Total Floor Area
69 sq m
Current CO2 Emissions Level
2.4
Potential CO2 Emissions Level
1.1
CO2 per sq m per Year
35
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
3 Heol Y Llwynau, Trebanos
Date
27 Apr 2023
Current
Potential
47
84
Property Type
House
Built Form
Semi-Detached
Constructed
1930-1949
Certificate History
27 Apr 2023
47
84
Total Floor Area
95 sq m
Current CO2 Emissions Level
6.6
Potential CO2 Emissions Level
1.8
CO2 per sq m per Year
70
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
31 Heol y Llwynau, Trebanos, Pontardawe
Date
29 Mar 2020
Current
Potential
67
85
Property Type
House
Built Form
Mid-Terrace
Constructed
1930-1949
Certificate History
29 Mar 2020
67
85
31 Aug 2011
68
71
Total Floor Area
82 sq m
Current CO2 Emissions Level
3.3
Potential CO2 Emissions Level
1.5
CO2 per sq m per Year
40
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
1
Address
32 Heol y Llwynau, Trebanos, Pontardawe
Date
29 Mar 2020
Current
Potential
70
85
Property Type
House
Built Form
Semi-Detached
Constructed
1930-1949
Certificate History
29 Mar 2020
70
85
31 Aug 2011
58
70
Total Floor Area
87 sq m
Current CO2 Emissions Level
3.2
Potential CO2 Emissions Level
1.5
CO2 per sq m per Year
36
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
1
Address
33 Heol y Llwynau, Trebanos, Pontardawe
Date
21 Nov 2013
Current
Potential
62
88
Property Type
House
Built Form
Mid-Terrace
Constructed
1930-1949
Certificate History
21 Nov 2013
62
88
Total Floor Area
106 sq m
Current CO2 Emissions Level
4.4
Potential CO2 Emissions Level
1.2
CO2 per sq m per Year
42
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
1
Address
36 Heol y Llwynau, Trebanos, Pontardawe
Date
26 Mar 2014
Current
Potential
54
84
Property Type
House
Built Form
Semi-Detached
Constructed
1930-1949
Certificate History
26 Mar 2014
54
84
Total Floor Area
80 sq m
Current CO2 Emissions Level
4.5
Potential CO2 Emissions Level
1.2
CO2 per sq m per Year
56
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
38 Heol y Llwynau, Trebanos, Pontardawe
Date
16 Dec 2019
Current
Potential
56
78
Property Type
House
Built Form
Semi-Detached
Constructed
1967-1975
Certificate History
16 Dec 2019
56
78
Total Floor Area
103 sq m
Current CO2 Emissions Level
5.3
Potential CO2 Emissions Level
2.5
CO2 per sq m per Year
51
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
1
Address
4 Heol y Llwynau, Trebanos, Pontardawe
Date
3 Jan 2014
Current
Potential
51
84
Property Type
House
Built Form
Semi-Detached
Constructed
1930-1949
Certificate History
3 Jan 2014
51
84
29 Oct 2013
40
76
29 Oct 2013
40
76
Total Floor Area
79 sq m
Current CO2 Emissions Level
4.8
Potential CO2 Emissions Level
1.2
CO2 per sq m per Year
60
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
40 Heol Y Llwynau, Trebanos
Date
15 May 2024
Current
Potential
67
83
Property Type
House
Built Form
Semi-Detached
Constructed
1967-1975
Certificate History
15 May 2024
67
83
Total Floor Area
94 sq m
Current CO2 Emissions Level
3.8
Potential CO2 Emissions Level
1.9
CO2 per sq m per Year
40
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
1
Address
41 Heol Y Llwynau, Trebanos
Date
3 Nov 2021
Current
Potential
34
84
Property Type
House
Built Form
Semi-Detached
Constructed
1950-1966
Certificate History
3 Nov 2021
34
84
Total Floor Area
74 sq m
Current CO2 Emissions Level
12.0
Potential CO2 Emissions Level
4.2
CO2 per sq m per Year
164
Mains Gas Available
No
Habitable Rooms
3
Number of Extensions
0
Address
42 Heol y Llwynau, Trebanos, Pontardawe
Date
29 Mar 2020
Current
Potential
71
86
Property Type
House
Built Form
Semi-Detached
Constructed
1950-1966
Certificate History
29 Mar 2020
71
86
31 Aug 2011
67
68
Total Floor Area
74 sq m
Current CO2 Emissions Level
2.6
Potential CO2 Emissions Level
1.2
CO2 per sq m per Year
35
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
43 Heol y Llwynau, Trebanos, Pontardawe
Date
9 Jun 2016
Current
Potential
55
83
Property Type
House
Built Form
Semi-Detached
Constructed
1930-1949
Certificate History
9 Jun 2016
55
83
Total Floor Area
92 sq m
Current CO2 Emissions Level
4.9
Potential CO2 Emissions Level
1.6
CO2 per sq m per Year
53
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
1
Address
44 HEOL Y LLWYNAU, TREBANOS
Date
27 Sep 2020
Current
Potential
63
76
Property Type
House
Built Form
Semi-Detached
Constructed
1930-1949
Certificate History
27 Sep 2020
63
76
Total Floor Area
83 sq m
Current CO2 Emissions Level
3.6
Potential CO2 Emissions Level
2.3
CO2 per sq m per Year
44
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
45 Heol y Llwynau, Trebanos, Pontardawe
Date
29 Mar 2020
Current
Potential
71
86
Property Type
House
Built Form
Semi-Detached
Constructed
1950-1966
Certificate History
29 Mar 2020
71
86
31 Aug 2011
67
68
Total Floor Area
74 sq m
Current CO2 Emissions Level
2.6
Potential CO2 Emissions Level
1.2
CO2 per sq m per Year
35
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
46 Heol y Llwynau, Trebanos, Pontardawe
Date
29 Mar 2020
Current
Potential
70
85
Property Type
House
Built Form
Semi-Detached
Constructed
1950-1966
Certificate History
29 Mar 2020
70
85
31 Aug 2011
59
72
Total Floor Area
74 sq m
Current CO2 Emissions Level
2.7
Potential CO2 Emissions Level
1.3
CO2 per sq m per Year
37
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
47 Heol y Llwynau, Trebanos, Pontardawe
Date
23 Jul 2014
Current
Potential
59
79
Property Type
House
Built Form
Semi-Detached
Constructed
1950-1966
Certificate History
23 Jul 2014
59
79
Total Floor Area
95 sq m
Current CO2 Emissions Level
4.4
Potential CO2 Emissions Level
2.1
CO2 per sq m per Year
46
Mains Gas Available
Yes
Habitable Rooms
7
Number of Extensions
1
Address
48 Heol y Llwynau, Trebanos, Pontardawe
Date
1 Dec 2016
Current
Potential
71
85
Property Type
House
Built Form
Semi-Detached
Constructed
1950-1966
Certificate History
1 Dec 2016
71
85
11 Oct 2011
58
70
27 Jul 2011
58
70
Total Floor Area
85 sq m
Current CO2 Emissions Level
2.9
Potential CO2 Emissions Level
1.6
CO2 per sq m per Year
34
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
49 Heol y Llwynau, Trebanos, Pontardawe
Date
17 Feb 2017
Current
Potential
64
81
Property Type
House
Built Form
Semi-Detached
Constructed
1950-1966
Certificate History
17 Feb 2017
64
81
17 Feb 2017
64
82
Total Floor Area
102 sq m
Current CO2 Emissions Level
4.5
Potential CO2 Emissions Level
2.3
CO2 per sq m per Year
44
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
1
Address
5 Heol y Llwynau, Trebanos, Pontardawe
Date
25 Mar 2014
Current
Potential
66
84
Property Type
House
Built Form
Semi-Detached
Constructed
1930-1949
Certificate History
25 Mar 2014
66
84
Total Floor Area
96 sq m
Current CO2 Emissions Level
3.6
Potential CO2 Emissions Level
1.4
CO2 per sq m per Year
38
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
50 Heol y Llwynau, Trebanos, Pontardawe
Date
19 Aug 2013
Current
Potential
70
86
Property Type
House
Built Form
Semi-Detached
Constructed
1950-1966
Certificate History
19 Aug 2013
70
86
Total Floor Area
82 sq m
Current CO2 Emissions Level
2.8
Potential CO2 Emissions Level
1.1
CO2 per sq m per Year
34
Mains Gas Available
Yes
Habitable Rooms
7
Number of Extensions
1
Address
52 Heol y Llwynau, Trebanos, Pontardawe
Date
17 May 2015
Current
Potential
71
85
Property Type
House
Built Form
Semi-Detached
Constructed
1950-1966
Certificate History
17 May 2015
71
85
Total Floor Area
89 sq m
Current CO2 Emissions Level
3.1
Potential CO2 Emissions Level
1.6
CO2 per sq m per Year
35
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
1
Address
6 Heol Y Llwynau, Trebanos
Date
22 Jun 2022
Current
Potential
61
80
Property Type
House
Built Form
Semi-Detached
Constructed
1930-1949
Certificate History
22 Jun 2022
61
80
Total Floor Area
92 sq m
Current CO2 Emissions Level
4.6
Potential CO2 Emissions Level
2.3
CO2 per sq m per Year
50
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
7 Heol y Llwynau, Trebanos, Pontardawe
Date
29 Mar 2020
Current
Potential
74
87
Property Type
House
Built Form
Semi-Detached
Constructed
1930-1949
Certificate History
29 Mar 2020
74
87
31 Aug 2011
71
72
Total Floor Area
97 sq m
Current CO2 Emissions Level
2.8
Potential CO2 Emissions Level
1.3
CO2 per sq m per Year
29
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
8 Heol y Llwynau, Trebanos, Pontardawe
Date
12 Sep 2013
Current
Potential
66
80
Property Type
House
Built Form
Semi-Detached
Constructed
1950-1966
Certificate History
12 Sep 2013
66
80
Total Floor Area
105 sq m
Current CO2 Emissions Level
3.6
Potential CO2 Emissions Level
1.9
CO2 per sq m per Year
34
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
1
Address
9 Heol y Llwynau, Trebanos, Pontardawe
Date
29 Mar 2020
Current
Potential
71
87
Property Type
House
Built Form
Semi-Detached
Constructed
1930-1949
Certificate History
29 Mar 2020
71
87
31 Aug 2011
60
72
Total Floor Area
97 sq m
Current CO2 Emissions Level
3.2
Potential CO2 Emissions Level
1.4
CO2 per sq m per Year
33
Mains Gas Available
Yes
Habitable Rooms
5
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.
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Contains Royal Mail data © Royal Mail copyright and Database right 2025.