PROPERTY ENERGY EFFICIENCY CERTIFICATE DETAILS
Derlwyn, SWANSEA, SA2 7QA
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 Derlwyn, SA2 7QA 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 Derlwyn, SWANSEA, SA2 7QA
Period Covered:
2008 - 31 January 2025
Address
Inspection Date
Current
Potential
Property Type
Built Form
Constructed
Address
1-3 Derlwyn, Dunvant
Date
25 Feb 2023
Current
Potential
48
52
Property Type
Flat
Built Form
Semi-Detached
Constructed
1983-1990
Certificate History
25 Feb 2023
48
52
Total Floor Area
72 sq m
Current CO2 Emissions Level
4.6
Potential CO2 Emissions Level
4.3
CO2 per sq m per Year
64
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
1
Address
25 Derlwyn, Dunvant
Date
15 Dec 2010
Current
Potential
52
68
Property Type
House
Built Form
End-Terrace
Constructed
1950-1966
Certificate History
15 Dec 2010
52
68
Total Floor Area
81 sq m
Current CO2 Emissions Level
5.4
Potential CO2 Emissions Level
3.5
CO2 per sq m per Year
66
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
25 DERLWYN, DUNVANT
Date
28 Apr 2021
Current
Potential
48
81
Property Type
House
Built Form
End-Terrace
Constructed
1950-1966
Certificate History
28 Apr 2021
48
81
Total Floor Area
81 sq m
Current CO2 Emissions Level
5.0
Potential CO2 Emissions Level
1.5
CO2 per sq m per Year
62
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
27 Derlwyn, Dunvant
Date
12 Feb 2020
Current
Potential
61
85
Property Type
House
Built Form
Mid-Terrace
Constructed
1950-1966
Certificate History
12 Feb 2020
61
85
18 Jul 2018
33
86
Total Floor Area
80 sq m
Current CO2 Emissions Level
3.8
Potential CO2 Emissions Level
1.3
CO2 per sq m per Year
48
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
29 Derlwyn, Dunvant
Date
13 Jul 2024
Current
Potential
60
85
Property Type
House
Built Form
Mid-Terrace
Constructed
1950-1966
Certificate History
13 Jul 2024
60
85
31 Dec 2014
53
77
Total Floor Area
82 sq m
Current CO2 Emissions Level
3.7
Potential CO2 Emissions Level
1.1
CO2 per sq m per Year
45
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
31 Derlwyn, Dunvant
Date
1 Aug 2018
Current
Potential
53
84
Property Type
House
Built Form
Mid-Terrace
Constructed
1950-1966
Certificate History
1 Aug 2018
53
84
Total Floor Area
82 sq m
Current CO2 Emissions Level
4.5
Potential CO2 Emissions Level
1.2
CO2 per sq m per Year
55
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
33 Derlwyn, Dunvant
Date
25 Jul 2018
Current
Potential
57
85
Property Type
House
Built Form
Mid-Terrace
Constructed
1950-1966
Certificate History
25 Jul 2018
57
85
Total Floor Area
84 sq m
Current CO2 Emissions Level
4.5
Potential CO2 Emissions Level
1.3
CO2 per sq m per Year
54
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
35 Derlwyn, Dunvant
Date
3 Aug 2015
Current
Potential
56
78
Property Type
House
Built Form
End-Terrace
Constructed
1950-1966
Certificate History
3 Aug 2015
56
78
Total Floor Area
83 sq m
Current CO2 Emissions Level
4.5
Potential CO2 Emissions Level
2.2
CO2 per sq m per Year
55
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
39 Derlwyn, Dunvant
Date
19 Feb 2020
Current
Potential
55
78
Property Type
House
Built Form
Detached
Constructed
1950-1966
Certificate History
19 Feb 2020
55
78
24 Aug 2009
63
69
Total Floor Area
88 sq m
Current CO2 Emissions Level
4.5
Potential CO2 Emissions Level
2.0
CO2 per sq m per Year
51
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
1
Address
41 Derlwyn, Dunvant
Date
11 Jan 2015
Current
Potential
61
81
Property Type
House
Built Form
Detached
Constructed
1967-1975
Certificate History
11 Jan 2015
61
81
Total Floor Area
92 sq m
Current CO2 Emissions Level
4.2
Potential CO2 Emissions Level
2.0
CO2 per sq m per Year
46
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
1
Address
43 Derlwyn, Dunvant
Date
27 Nov 2013
Current
Potential
59
79
Property Type
House
Built Form
Detached
Constructed
1967-1975
Certificate History
27 Nov 2013
59
79
Total Floor Area
99 sq m
Current CO2 Emissions Level
4.5
Potential CO2 Emissions Level
2.1
CO2 per sq m per Year
45
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
1
Address
47 Derlwyn, Dunvant
Date
9 Mar 2009
Current
Potential
42
68
Property Type
House
Built Form
Detached
Constructed
1950-1966
Certificate History
9 Mar 2009
42
68
Total Floor Area
90 sq m
Current CO2 Emissions Level
7.2
Potential CO2 Emissions Level
3.8
CO2 per sq m per Year
79
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
2
Address
49 Derlwyn, Dunvant
Date
13 Mar 2019
Current
Potential
49
76
Property Type
House
Built Form
Detached
Constructed
1950-1966
Certificate History
13 Mar 2019
49
76
17 Dec 2014
29
74
Total Floor Area
83 sq m
Current CO2 Emissions Level
4.7
Potential CO2 Emissions Level
2.0
CO2 per sq m per Year
57
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
1
Address
51 Derlwyn, Dunvant
Date
6 Sep 2018
Current
Potential
48
84
Property Type
House
Built Form
Detached
Constructed
1950-1966
Certificate History
6 Sep 2018
48
84
9 Dec 2014
40
78
Total Floor Area
83 sq m
Current CO2 Emissions Level
5.2
Potential CO2 Emissions Level
1.4
CO2 per sq m per Year
62
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
1
Address
53 Derlwyn, Dunvant
Date
31 Jul 2014
Current
Potential
62
84
Property Type
House
Built Form
Detached
Constructed
1967-1975
Certificate History
31 Jul 2014
62
84
Total Floor Area
82 sq m
Current CO2 Emissions Level
3.6
Potential CO2 Emissions Level
1.3
CO2 per sq m per Year
44
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
55 Derlwyn, Dunvant
Date
24 Jul 2016
Current
Potential
46
84
Property Type
House
Built Form
Detached
Constructed
1950-1966
Certificate History
24 Jul 2016
46
84
3 Nov 2014
41
83
Total Floor Area
86 sq m
Current CO2 Emissions Level
6.0
Potential CO2 Emissions Level
1.5
CO2 per sq m per Year
70
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
1
Address
57 Derlwyn, Dunvant
Date
17 Jul 2018
Current
Potential
51
82
Property Type
House
Built Form
Detached
Constructed
1967-1975
Certificate History
17 Jul 2018
51
82
Total Floor Area
85 sq m
Current CO2 Emissions Level
5.2
Potential CO2 Emissions Level
1.7
CO2 per sq m per Year
62
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
1
Address
59 Derlwyn, Dunvant
Date
20 Dec 2021
Current
Potential
58
81
Property Type
House
Built Form
Detached
Constructed
1950-1966
Certificate History
20 Dec 2021
58
81
13 Jan 2012
55
67
Total Floor Area
83 sq m
Current CO2 Emissions Level
4.3
Potential CO2 Emissions Level
1.8
CO2 per sq m per Year
52
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
1
Address
63 Derlwyn, Dunvant
Date
6 Jul 2024
Current
Potential
54
78
Property Type
House
Built Form
Detached
Constructed
1950-1966
Certificate History
6 Jul 2024
54
78
9 Dec 2014
45
84
29 Jul 2011
49
69
Total Floor Area
84 sq m
Current CO2 Emissions Level
4.5
Potential CO2 Emissions Level
1.9
CO2 per sq m per Year
54
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
1
Address
65 DERLWYN, DUNVANT
Date
17 Jun 2021
Current
Potential
54
78
Property Type
House
Built Form
Detached
Constructed
1950-1966
Certificate History
17 Jun 2021
54
78
Total Floor Area
93 sq m
Current CO2 Emissions Level
4.8
Potential CO2 Emissions Level
2.0
CO2 per sq m per Year
52
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
2
Address
65 Derlwyn, Dunvant
Date
3 May 2011
Current
Potential
61
71
Property Type
House
Built Form
Detached
Constructed
1967-1975
Certificate History
3 May 2011
61
71
Total Floor Area
83 sq m
Current CO2 Emissions Level
4.1
Potential CO2 Emissions Level
2.8
CO2 per sq m per Year
49
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
1
Address
67 Derlwyn, Dunvant
Date
3 Sep 2018
Current
Potential
61
82
Property Type
House
Built Form
Detached
Constructed
1950-1966
Certificate History
3 Sep 2018
61
82
9 Dec 2014
60
83
Total Floor Area
83 sq m
Current CO2 Emissions Level
3.9
Potential CO2 Emissions Level
1.6
CO2 per sq m per Year
47
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
1
Address
69 Derlwyn, Dunvant
Date
3 Sep 2018
Current
Potential
61
82
Property Type
House
Built Form
Detached
Constructed
1950-1966
Certificate History
3 Sep 2018
61
82
10 Dec 2014
55
83
Total Floor Area
83 sq m
Current CO2 Emissions Level
3.9
Potential CO2 Emissions Level
1.6
CO2 per sq m per Year
47
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
1
Address
71 Derlwyn, Dunvant
Date
30 Jan 2020
Current
Potential
60
81
Property Type
House
Built Form
Detached
Constructed
1950-1966
Certificate History
30 Jan 2020
60
81
10 Dec 2014
1
84
Total Floor Area
83 sq m
Current CO2 Emissions Level
4.1
Potential CO2 Emissions Level
1.8
CO2 per sq m per Year
50
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
75 Derlwyn, Dunvant
Date
29 Apr 2015
Current
Potential
66
84
Property Type
House
Built Form
Detached
Constructed
1967-1975
Certificate History
29 Apr 2015
66
84
Total Floor Area
131 sq m
Current CO2 Emissions Level
4.8
Potential CO2 Emissions Level
2.2
CO2 per sq m per Year
37
Mains Gas Available
Yes
Habitable Rooms
7
Number of Extensions
1
Address
81 Derlwyn, Dunvant
Date
26 Feb 2022
Current
Potential
30
73
Property Type
House
Built Form
Detached
Constructed
1950-1966
Certificate History
26 Feb 2022
30
73
17 Nov 2008
45
61
Total Floor Area
84 sq m
Current CO2 Emissions Level
8.2
Potential CO2 Emissions Level
2.7
CO2 per sq m per Year
98
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
2
Address
83 Derlwyn, Dunvant
Date
19 Mar 2024
Current
Potential
70
82
Property Type
House
Built Form
Detached
Constructed
1983-1990
Certificate History
19 Mar 2024
70
82
Total Floor Area
123 sq m
Current CO2 Emissions Level
4.0
Potential CO2 Emissions Level
2.3
CO2 per sq m per Year
32
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
2
Address
89 Derlwyn, Dunvant
Date
11 Dec 2012
Current
Potential
55
79
Property Type
Bungalow
Built Form
Detached
Constructed
1950-1966
Certificate History
11 Dec 2012
55
79
11 Dec 2012
77
88
Total Floor Area
78 sq m
Current CO2 Emissions Level
4.4
Potential CO2 Emissions Level
1.8
CO2 per sq m per Year
56
Mains Gas Available
Yes
Habitable Rooms
4
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.