PROPERTY ENERGY EFFICIENCY CERTIFICATE DETAILS
Heol Trefor, SWANSEA, SA5 9AG

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 Trefor, SA5 9AG 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 Trefor, SWANSEA, SA5 9AG
Period Covered: 2008 - 31 January 2025

Address
Inspection Date
Current
Potential
Property Type
Built Form
Constructed
Address
11 Heol Trefor, Penlan
Date
9 May 2022
Current
Potential
63
88
Property Type
House
Built Form
Detached
Constructed
1967-1975
+
Certificate History
9 May 2022
63
88
Total Floor Area
81 sq m
Current CO2 Emissions Level
3.7
Potential CO2 Emissions Level
1.0
CO2 per sq m per Year
46
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
13 Heol Trefor, Penlan
Date
1 Aug 2016
Current
Potential
62
80
Property Type
House
Built Form
Semi-Detached
Constructed
1950-1966
+
Certificate History
1 Aug 2016
62
80
18 Mar 2014
35
78
30 Jul 2013
37
78
Total Floor Area
85 sq m
Current CO2 Emissions Level
3.8
Potential CO2 Emissions Level
2.0
CO2 per sq m per Year
44
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
1
Address
14 Heol Trefor, Penlan
Date
13 Sep 2009
Current
Potential
39
57
Property Type
House
Built Form
Semi-Detached
Constructed
1930-1949
+
Certificate History
13 Sep 2009
39
57
Total Floor Area
84 sq m
Current CO2 Emissions Level
7.2
Potential CO2 Emissions Level
4.9
CO2 per sq m per Year
86
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
0
Address
15 Heol Trefor, Penlan
Date
7 Jul 2016
Current
Potential
74
88
Property Type
House
Built Form
Semi-Detached
Constructed
1950-1966
+
Certificate History
7 Jul 2016
74
88
Total Floor Area
82 sq m
Current CO2 Emissions Level
2.4
Potential CO2 Emissions Level
0.9
CO2 per sq m per Year
29
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
16 Heol Trefor, Penlan
Date
24 Jul 2014
Current
Potential
72
86
Property Type
House
Built Form
Semi-Detached
Constructed
1930-1949
+
Certificate History
24 Jul 2014
72
86
Total Floor Area
83 sq m
Current CO2 Emissions Level
2.5
Potential CO2 Emissions Level
1.0
CO2 per sq m per Year
30
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
18 Heol Trefor, Penlan
Date
20 Feb 2024
Current
Potential
71
84
Property Type
House
Built Form
Semi-Detached
Constructed
1930-1949
+
Certificate History
20 Feb 2024
71
84
6 Feb 2014
70
83
6 Feb 2014
53
83
7 Jul 2013
46
86
27 May 2013
43
83
Total Floor Area
82 sq m
Current CO2 Emissions Level
2.8
Potential CO2 Emissions Level
1.4
CO2 per sq m per Year
34
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
2 Heol Trefor, Penlan
Date
14 Mar 2013
Current
Potential
71
87
Property Type
House
Built Form
Semi-Detached
Constructed
1930-1949
+
Certificate History
14 Mar 2013
71
87
Total Floor Area
79 sq m
Current CO2 Emissions Level
2.5
Potential CO2 Emissions Level
0.9
CO2 per sq m per Year
31
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
21 Heol Trefor, Penlan
Date
24 Jul 2013
Current
Potential
73
87
Property Type
House
Built Form
Semi-Detached
Constructed
1930-1949
+
Certificate History
24 Jul 2013
73
87
Total Floor Area
83 sq m
Current CO2 Emissions Level
2.4
Potential CO2 Emissions Level
0.9
CO2 per sq m per Year
28
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
22 Heol Trefor, Penlan
Date
13 Mar 2017
Current
Potential
64
78
Property Type
House
Built Form
Semi-Detached
Constructed
1950-1966
+
Certificate History
13 Mar 2017
64
78
Total Floor Area
89 sq m
Current CO2 Emissions Level
3.7
Potential CO2 Emissions Level
2.3
CO2 per sq m per Year
42
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
23 Heol Trefor, Penlan
Date
29 Oct 2014
Current
Potential
73
87
Property Type
House
Built Form
Semi-Detached
Constructed
1930-1949
+
Certificate History
29 Oct 2014
73
87
Total Floor Area
84 sq m
Current CO2 Emissions Level
2.4
Potential CO2 Emissions Level
0.9
CO2 per sq m per Year
28
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
26 Heol Trefor, Penlan
Date
11 Feb 2013
Current
Potential
58
85
Property Type
House
Built Form
Semi-Detached
Constructed
1930-1949
+
Certificate History
11 Feb 2013
58
85
Total Floor Area
84 sq m
Current CO2 Emissions Level
4.1
Potential CO2 Emissions Level
1.2
CO2 per sq m per Year
49
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
28 Heol Trefor, Penlan
Date
17 Apr 2018
Current
Potential
63
81
Property Type
House
Built Form
Semi-Detached
Constructed
1950-1966
+
Certificate History
17 Apr 2018
63
81
Total Floor Area
99 sq m
Current CO2 Emissions Level
3.9
Potential CO2 Emissions Level
1.8
CO2 per sq m per Year
40
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
29 Heol Trefor, Penlan
Date
22 Sep 2015
Current
Potential
43
78
Property Type
House
Built Form
Semi-Detached
Constructed
1950-1966
+
Certificate History
22 Sep 2015
43
78
Total Floor Area
123 sq m
Current CO2 Emissions Level
8.1
Potential CO2 Emissions Level
2.6
CO2 per sq m per Year
65
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
3 Heol Trefor, Penlan
Date
15 Jan 2013
Current
Potential
68
81
Property Type
House
Built Form
Semi-Detached
Constructed
1930-1949
+
Certificate History
15 Jan 2013
68
81
Total Floor Area
84 sq m
Current CO2 Emissions Level
2.8
Potential CO2 Emissions Level
1.5
CO2 per sq m per Year
33
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
30 Heol Trefor, Penlan
Date
17 Apr 2018
Current
Potential
70
84
Property Type
House
Built Form
Semi-Detached
Constructed
1950-1966
+
Certificate History
17 Apr 2018
70
84
Total Floor Area
99 sq m
Current CO2 Emissions Level
3.3
Potential CO2 Emissions Level
1.7
CO2 per sq m per Year
33
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
33 Heol Trefor, Penlan
Date
2 Apr 2018
Current
Potential
68
82
Property Type
House
Built Form
Semi-Detached
Constructed
1967-1975
+
Certificate History
2 Apr 2018
68
82
Total Floor Area
88 sq m
Current CO2 Emissions Level
3.3
Potential CO2 Emissions Level
1.8
CO2 per sq m per Year
38
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
4 Heol Trefor, Penlan
Date
13 Sep 2009
Current
Potential
39
57
Property Type
House
Built Form
Semi-Detached
Constructed
1930-1949
+
Certificate History
13 Sep 2009
39
57
Total Floor Area
82 sq m
Current CO2 Emissions Level
7.1
Potential CO2 Emissions Level
4.9
CO2 per sq m per Year
87
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
5 Heol Trefor, Penlan
Date
17 Jan 2013
Current
Potential
68
81
Property Type
House
Built Form
Semi-Detached
Constructed
1930-1949
+
Certificate History
17 Jan 2013
68
81
Total Floor Area
84 sq m
Current CO2 Emissions Level
2.8
Potential CO2 Emissions Level
1.5
CO2 per sq m per Year
33
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
6 Heol Trefor, Penlan
Date
17 Apr 2018
Current
Potential
70
83
Property Type
House
Built Form
Semi-Detached
Constructed
1930-1949
+
Certificate History
17 Apr 2018
70
83
Total Floor Area
90 sq m
Current CO2 Emissions Level
2.9
Potential CO2 Emissions Level
1.4
CO2 per sq m per Year
32
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
7 Heol Trefor, Penlan
Date
17 Apr 2018
Current
Potential
73
86
Property Type
House
Built Form
Semi-Detached
Constructed
1930-1949
+
Certificate History
17 Apr 2018
73
86
Total Floor Area
90 sq m
Current CO2 Emissions Level
2.7
Potential CO2 Emissions Level
1.2
CO2 per sq m per Year
30
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
8 Heol Trefor, Penlan
Date
5 Jan 2015
Current
Potential
36
76
Property Type
House
Built Form
Semi-Detached
Constructed
1950-1966
+
Certificate History
5 Jan 2015
36
76
Total Floor Area
78 sq m
Current CO2 Emissions Level
6.9
Potential CO2 Emissions Level
2.2
CO2 per sq m per Year
88
Mains Gas Available
Yes
Habitable Rooms
5
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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Contains Royal Mail data © Royal Mail copyright and Database right 2025.