PROPERTY ENERGY EFFICIENCY CERTIFICATE DETAILS
Dillwyn Street, LLANELLI, SA15 1BT
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 Dillwyn Street, SA15 1BT 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 Dillwyn Street, LLANELLI, SA15 1BT
Period Covered:
2008 - 31 January 2025
Address
Inspection Date
Current
Potential
Property Type
Built Form
Constructed
Address
105 Dillwyn Street
Date
9 Feb 2011
Current
Potential
40
46
Property Type
House
Built Form
Semi-Detached
Constructed
before 1900
Certificate History
9 Feb 2011
40
46
Total Floor Area
173 sq m
Current CO2 Emissions Level
13.0
Potential CO2 Emissions Level
11.0
CO2 per sq m per Year
66
Mains Gas Available
Yes
Habitable Rooms
7
Number of Extensions
2
Address
105a Dillwyn Street
Date
23 May 2023
Current
Potential
75
77
Property Type
Flat
Built Form
Semi-Detached
Constructed
1991-1995
Certificate History
23 May 2023
75
77
13 Sep 2013
75
77
Total Floor Area
44 sq m
Current CO2 Emissions Level
1.4
Potential CO2 Emissions Level
1.3
CO2 per sq m per Year
33
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
105B DILLWYN STREET, LLANELLI
Date
8 Apr 2021
Current
Potential
76
78
Property Type
Flat
Built Form
End-Terrace
Constructed
1976-1982
Certificate History
8 Apr 2021
76
78
Total Floor Area
44 sq m
Current CO2 Emissions Level
1.4
Potential CO2 Emissions Level
1.2
CO2 per sq m per Year
32
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
105c Dillwyn Street
Date
31 Mar 2010
Current
Potential
77
81
Property Type
Flat
Built Form
Semi-Detached
Constructed
1991-1995
Certificate History
31 Mar 2010
77
81
Total Floor Area
41 sq m
Current CO2 Emissions Level
1.7
Potential CO2 Emissions Level
1.4
CO2 per sq m per Year
41
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
105d Dillwyn Street
Date
22 May 2023
Current
Potential
76
77
Property Type
Flat
Built Form
Semi-Detached
Constructed
1991-1995
Certificate History
22 May 2023
76
77
18 Aug 2022
77
77
Total Floor Area
44 sq m
Current CO2 Emissions Level
1.3
Potential CO2 Emissions Level
1.3
CO2 per sq m per Year
30
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
11 Dillwyn Street
Date
6 Sep 2015
Current
Potential
55
89
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
6 Sep 2015
55
89
21 Feb 2012
51
60
Total Floor Area
68 sq m
Current CO2 Emissions Level
4.4
Potential CO2 Emissions Level
0.8
CO2 per sq m per Year
65
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
1
Address
15 Dillwyn Street
Date
23 Mar 2018
Current
Potential
51
88
Property Type
House
Built Form
Mid-Terrace
Constructed
before 1900
Certificate History
23 Mar 2018
51
88
Total Floor Area
72 sq m
Current CO2 Emissions Level
4.7
Potential CO2 Emissions Level
1.1
CO2 per sq m per Year
65
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
1
Address
25 Dillwyn Street
Date
5 Jun 2024
Current
Potential
54
82
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
5 Jun 2024
54
82
28 May 2014
49
82
Total Floor Area
138 sq m
Current CO2 Emissions Level
7.1
Potential CO2 Emissions Level
2.7
CO2 per sq m per Year
51
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
1
Address
29 Dillwyn Street
Date
8 May 2014
Current
Potential
61
86
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
8 May 2014
61
86
29 Jan 2014
58
83
Total Floor Area
89 sq m
Current CO2 Emissions Level
4.0
Potential CO2 Emissions Level
1.2
CO2 per sq m per Year
45
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
1
Address
3 Dillwyn Street
Date
10 May 2015
Current
Potential
26
81
Property Type
House
Built Form
Mid-Terrace
Constructed
before 1900
Certificate History
10 May 2015
26
81
Total Floor Area
64 sq m
Current CO2 Emissions Level
8.2
Potential CO2 Emissions Level
2.2
CO2 per sq m per Year
129
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
2
Address
33 Dillwyn Street
Date
17 Oct 2013
Current
Potential
70
85
Property Type
House
Built Form
Mid-Terrace
Constructed
before 1900
Certificate History
17 Oct 2013
70
85
17 Oct 2013
65
85
1 Jul 2012
35
69
Total Floor Area
63 sq m
Current CO2 Emissions Level
2.2
Potential CO2 Emissions Level
0.9
CO2 per sq m per Year
34
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
1
Address
37 Dillwyn Street
Date
25 May 2022
Current
Potential
70
88
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
25 May 2022
70
88
Total Floor Area
79 sq m
Current CO2 Emissions Level
2.7
Potential CO2 Emissions Level
0.8
CO2 per sq m per Year
34
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
1
Address
39 Dillwyn Street
Date
30 Dec 2016
Current
Potential
65
85
Property Type
House
Built Form
Mid-Terrace
Constructed
before 1900
Certificate History
30 Dec 2016
65
85
Total Floor Area
85 sq m
Current CO2 Emissions Level
3.8
Potential CO2 Emissions Level
1.6
CO2 per sq m per Year
45
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
1
Address
41 Dillwyn Street
Date
6 Aug 2015
Current
Potential
63
90
Property Type
House
Built Form
End-Terrace
Constructed
1900-1929
Certificate History
6 Aug 2015
63
90
16 Feb 2010
26
54
Total Floor Area
70 sq m
Current CO2 Emissions Level
3.6
Potential CO2 Emissions Level
0.7
CO2 per sq m per Year
51
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
1
Address
43 Dillwyn Street
Date
15 Jan 2014
Current
Potential
56
84
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
15 Jan 2014
56
84
10 Oct 2012
61
85
2 Jun 2009
56
72
15 Oct 2008
43
66
Total Floor Area
109 sq m
Current CO2 Emissions Level
5.3
Potential CO2 Emissions Level
1.8
CO2 per sq m per Year
49
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
1
Address
45 Dillwyn Street
Date
9 Jun 2016
Current
Potential
48
77
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
9 Jun 2016
48
77
12 Apr 2014
48
75
Total Floor Area
88 sq m
Current CO2 Emissions Level
6.1
Potential CO2 Emissions Level
2.7
CO2 per sq m per Year
70
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
1
Address
47 Dillwyn Street
Date
30 May 2014
Current
Potential
64
85
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
30 May 2014
64
85
10 Jun 2010
60
64
Total Floor Area
92 sq m
Current CO2 Emissions Level
3.7
Potential CO2 Emissions Level
1.4
CO2 per sq m per Year
41
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
1
Address
5 Dillwyn Street
Date
19 May 2019
Current
Potential
58
75
Property Type
House
Built Form
Mid-Terrace
Constructed
before 1900
Certificate History
19 May 2019
58
75
Total Floor Area
68 sq m
Current CO2 Emissions Level
3.7
Potential CO2 Emissions Level
2.1
CO2 per sq m per Year
55
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
1
Address
51a Dillwyn Street
Date
20 Sep 2023
Current
Potential
73
76
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
20 Sep 2023
73
76
7 May 2015
48
75
Total Floor Area
59 sq m
Current CO2 Emissions Level
2.1
Potential CO2 Emissions Level
1.8
CO2 per sq m per Year
35
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
1
Address
51b Dillwyn Street
Date
16 Feb 2023
Current
Potential
73
77
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
16 Feb 2023
73
77
Total Floor Area
65 sq m
Current CO2 Emissions Level
2.2
Potential CO2 Emissions Level
1.7
CO2 per sq m per Year
34
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
1
Address
51B DILLWYN STREET, LLANELLI
Date
20 Apr 2021
Current
Potential
62
78
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
20 Apr 2021
62
78
Total Floor Area
65 sq m
Current CO2 Emissions Level
3.4
Potential CO2 Emissions Level
1.7
CO2 per sq m per Year
53
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
1
Address
53 Dillwyn Street
Date
14 Jun 2023
Current
Potential
72
84
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
14 Jun 2023
72
84
22 Apr 2013
37
79
Total Floor Area
110 sq m
Current CO2 Emissions Level
3.7
Potential CO2 Emissions Level
2.0
CO2 per sq m per Year
33
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
1
Address
55 Dillwyn Street
Date
3 Oct 2018
Current
Potential
62
83
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
3 Oct 2018
62
83
Total Floor Area
92 sq m
Current CO2 Emissions Level
4.1
Potential CO2 Emissions Level
1.7
CO2 per sq m per Year
45
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
1
Address
63 Dillwyn Street
Date
19 Jun 2018
Current
Potential
61
81
Property Type
House
Built Form
Mid-Terrace
Constructed
before 1900
Certificate History
19 Jun 2018
61
81
4 Dec 2008
66
67
Total Floor Area
91 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
65 Dillwyn Street
Date
6 May 2013
Current
Potential
63
81
Property Type
House
Built Form
Mid-Terrace
Constructed
before 1900
Certificate History
6 May 2013
63
81
Total Floor Area
86 sq m
Current CO2 Emissions Level
3.7
Potential CO2 Emissions Level
1.8
CO2 per sq m per Year
43
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
1
Address
67 DILLWYN STREET
Date
15 Jun 2021
Current
Potential
58
82
Property Type
House
Built Form
End-Terrace
Constructed
before 1900
Certificate History
15 Jun 2021
58
82
Total Floor Area
96 sq m
Current CO2 Emissions Level
4.7
Potential CO2 Emissions Level
1.9
CO2 per sq m per Year
50
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
1
Address
67 Dillwyn Street
Date
18 Feb 2014
Current
Potential
37
82
Property Type
House
Built Form
End-Terrace
Constructed
before 1900
Certificate History
18 Feb 2014
37
82
21 Jan 2014
35
76
Total Floor Area
129 sq m
Current CO2 Emissions Level
9.5
Potential CO2 Emissions Level
2.3
CO2 per sq m per Year
74
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
1
Address
69 Dillwyn Street
Date
17 Jun 2015
Current
Potential
51
75
Property Type
House
Built Form
End-Terrace
Constructed
1900-1929
Certificate History
17 Jun 2015
51
75
Total Floor Area
90 sq m
Current CO2 Emissions Level
5.8
Potential CO2 Emissions Level
2.9
CO2 per sq m per Year
64
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
2
Address
73 Dillwyn Street
Date
15 Oct 2015
Current
Potential
69
85
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
15 Oct 2015
69
85
Total Floor Area
91 sq m
Current CO2 Emissions Level
3.6
Potential CO2 Emissions Level
1.6
CO2 per sq m per Year
39
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
1
Address
75 Dillwyn Street
Date
5 Feb 2023
Current
Potential
59
85
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
5 Feb 2023
59
85
Total Floor Area
89 sq m
Current CO2 Emissions Level
4.8
Potential CO2 Emissions Level
1.7
CO2 per sq m per Year
54
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
1
Address
77 Dillwyn Street
Date
25 Apr 2017
Current
Potential
77
88
Property Type
House
Built Form
Mid-Terrace
Constructed
2003-2006
Certificate History
25 Apr 2017
77
88
Total Floor Area
92 sq m
Current CO2 Emissions Level
2.5
Potential CO2 Emissions Level
1.3
CO2 per sq m per Year
27
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
1
Address
79 Dillwyn Street
Date
26 Nov 2013
Current
Potential
45
87
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
26 Nov 2013
45
87
Total Floor Area
71 sq m
Current CO2 Emissions Level
5.1
Potential CO2 Emissions Level
0.9
CO2 per sq m per Year
72
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
1
Address
81 Dillwyn Street
Date
11 Mar 2023
Current
Potential
73
88
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
11 Mar 2023
73
88
13 Nov 2014
52
86
5 May 2014
55
89
24 Feb 2009
62
74
Total Floor Area
60 sq m
Current CO2 Emissions Level
2.1
Potential CO2 Emissions Level
0.9
CO2 per sq m per Year
35
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
83 Dillwyn Street
Date
12 Feb 2020
Current
Potential
74
89
Property Type
House
Built Form
Mid-Terrace
Constructed
before 1900
Certificate History
12 Feb 2020
74
89
30 Jul 2013
69
86
Total Floor Area
78 sq m
Current CO2 Emissions Level
2.4
Potential CO2 Emissions Level
0.9
CO2 per sq m per Year
31
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
3
Address
85 Dillwyn Street
Date
2 Mar 2015
Current
Potential
59
86
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
2 Mar 2015
59
86
Total Floor Area
66 sq m
Current CO2 Emissions Level
3.5
Potential CO2 Emissions Level
1.0
CO2 per sq m per Year
53
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
1
Address
87 Dillwyn Street
Date
10 Feb 2017
Current
Potential
69
86
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
10 Feb 2017
69
86
9 May 2016
68
84
Total Floor Area
65 sq m
Current CO2 Emissions Level
2.7
Potential CO2 Emissions Level
1.2
CO2 per sq m per Year
41
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
2
Address
89 Dillwyn Street
Date
17 Sep 2019
Current
Potential
63
85
Property Type
House
Built Form
Mid-Terrace
Constructed
before 1900
Certificate History
17 Sep 2019
63
85
Total Floor Area
60 sq m
Current CO2 Emissions Level
2.9
Potential CO2 Emissions Level
0.9
CO2 per sq m per Year
48
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
2
Address
9 Dillwyn Street
Date
6 Jun 2022
Current
Potential
65
89
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
6 Jun 2022
65
89
Total Floor Area
65 sq m
Current CO2 Emissions Level
3.1
Potential CO2 Emissions Level
0.8
CO2 per sq m per Year
47
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
1
Address
91 Dillwyn Street
Date
14 Nov 2024
Current
Potential
73
88
Property Type
House
Built Form
Mid-Terrace
Constructed
1930-1949
Certificate History
14 Nov 2024
73
88
12 Mar 2020
61
87
2 Jun 2009
71
71
Total Floor Area
65 sq m
Current CO2 Emissions Level
2.3
Potential CO2 Emissions Level
0.9
CO2 per sq m per Year
35
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
1
Address
93 Dillwyn Street
Date
9 Nov 2021
Current
Potential
62
87
Property Type
House
Built Form
Mid-Terrace
Constructed
before 1900
Certificate History
9 Nov 2021
62
87
Total Floor Area
77 sq m
Current CO2 Emissions Level
3.9
Potential CO2 Emissions Level
1.2
CO2 per sq m per Year
50
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
2
Address
95 Dillwyn Street
Date
17 Jan 2017
Current
Potential
56
89
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
17 Jan 2017
56
89
Total Floor Area
64 sq m
Current CO2 Emissions Level
4.0
Potential CO2 Emissions Level
0.8
CO2 per sq m per Year
63
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
2
Address
97 Dillwyn Street
Date
24 Feb 2022
Current
Potential
67
84
Property Type
House
Built Form
Mid-Terrace
Constructed
before 1900
Certificate History
24 Feb 2022
67
84
Total Floor Area
87 sq m
Current CO2 Emissions Level
3.6
Potential CO2 Emissions Level
1.8
CO2 per sq m per Year
42
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
1
Address
99 Dillwyn Street
Date
23 Nov 2024
Current
Potential
57
87
Property Type
House
Built Form
Mid-Terrace
Constructed
before 1900
Certificate History
23 Nov 2024
57
87
Total Floor Area
75 sq m
Current CO2 Emissions Level
4.5
Potential CO2 Emissions Level
1.2
CO2 per sq m per Year
60
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
1
Address
Flat 1, 107 Dillwyn Street
Date
22 May 2023
Current
Potential
54
73
Property Type
Flat
Built Form
Semi-Detached
Constructed
1900-1929
Certificate History
22 May 2023
54
73
10 Mar 2010
59
65
Total Floor Area
50 sq m
Current CO2 Emissions Level
3.3
Potential CO2 Emissions Level
1.7
CO2 per sq m per Year
67
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
Flat 2, 107 Dillwyn Street
Date
23 May 2023
Current
Potential
68
73
Property Type
Flat
Built Form
Semi-Detached
Constructed
1900-1929
Certificate History
23 May 2023
68
73
28 Jul 2010
49
69
Total Floor Area
39 sq m
Current CO2 Emissions Level
2.0
Potential CO2 Emissions Level
1.5
CO2 per sq m per Year
50
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
1
Address
Flat 3, 107 Dillwyn Street
Date
29 May 2023
Current
Potential
66
78
Property Type
Flat
Built Form
Detached
Constructed
1900-1929
Certificate History
29 May 2023
66
78
Total Floor Area
79 sq m
Current CO2 Emissions Level
3.4
Potential CO2 Emissions Level
1.9
CO2 per sq m per Year
43
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
1
Address
Flat 4, 107 Dillwyn Street
Date
22 May 2023
Current
Potential
51
71
Property Type
Flat
Built Form
Detached
Constructed
1900-1929
Certificate History
22 May 2023
51
71
22 May 2023
59
81
Total Floor Area
94 sq m
Current CO2 Emissions Level
6.0
Potential CO2 Emissions Level
3.3
CO2 per sq m per Year
64
Mains Gas Available
Yes
Habitable Rooms
2
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.
Contains public sector information licensed under the Open Government Licence v3.0.
Contains Royal Mail data © Royal Mail copyright and Database right 2025.