PROPERTY ENERGY EFFICIENCY CERTIFICATE DETAILS
Denham Avenue, LLANELLI, SA15 4DD
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 Denham Avenue, SA15 4DD 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 Denham Avenue, LLANELLI, SA15 4DD
Period Covered:
2008 - 31 January 2025
Address
Inspection Date
Current
Potential
Property Type
Built Form
Constructed
Address
103 Denham Avenue
Date
22 May 2013
Current
Potential
57
80
Property Type
House
Built Form
Detached
Constructed
1950-1966
Certificate History
22 May 2013
57
80
Total Floor Area
107 sq m
Current CO2 Emissions Level
4.9
Potential CO2 Emissions Level
2.1
CO2 per sq m per Year
46
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
2
Address
104 Denham Avenue
Date
25 Jan 2020
Current
Potential
54
82
Property Type
House
Built Form
Detached
Constructed
1950-1966
Certificate History
25 Jan 2020
54
82
Total Floor Area
79 sq m
Current CO2 Emissions Level
5.0
Potential CO2 Emissions Level
1.9
CO2 per sq m per Year
64
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
108 Denham Avenue
Date
10 Dec 2018
Current
Potential
69
83
Property Type
House
Built Form
Detached
Constructed
1967-1975
Certificate History
10 Dec 2018
69
83
16 Mar 2018
60
82
Total Floor Area
87 sq m
Current CO2 Emissions Level
3.3
Potential CO2 Emissions Level
1.9
CO2 per sq m per Year
38
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
1
Address
109 Denham Avenue
Date
20 Jun 2010
Current
Potential
58
70
Property Type
House
Built Form
Detached
Constructed
1950-1966
Certificate History
20 Jun 2010
58
70
Total Floor Area
94 sq m
Current CO2 Emissions Level
5.1
Potential CO2 Emissions Level
3.7
CO2 per sq m per Year
54
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
1
Address
110 Denham Avenue
Date
11 May 2017
Current
Potential
53
85
Property Type
House
Built Form
Detached
Constructed
1967-1975
Certificate History
11 May 2017
53
85
Total Floor Area
85 sq m
Current CO2 Emissions Level
5.6
Potential CO2 Emissions Level
1.6
CO2 per sq m per Year
65
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
114 Denham Avenue
Date
5 Sep 2018
Current
Potential
60
81
Property Type
House
Built Form
Detached
Constructed
1967-1975
Certificate History
5 Sep 2018
60
81
Total Floor Area
89 sq m
Current CO2 Emissions Level
4.7
Potential CO2 Emissions Level
2.2
CO2 per sq m per Year
53
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
1
Address
118 Denham Avenue
Date
6 Oct 2017
Current
Potential
51
75
Property Type
House
Built Form
Detached
Constructed
1950-1966
Certificate History
6 Oct 2017
51
75
Total Floor Area
113 sq m
Current CO2 Emissions Level
7.0
Potential CO2 Emissions Level
3.5
CO2 per sq m per Year
62
Mains Gas Available
Yes
Habitable Rooms
7
Number of Extensions
1
Address
26 Denham Avenue
Date
8 Mar 2011
Current
Potential
53
72
Property Type
House
Built Form
Semi-Detached
Constructed
1930-1949
Certificate History
8 Mar 2011
53
72
Total Floor Area
127 sq m
Current CO2 Emissions Level
7.1
Potential CO2 Emissions Level
4.2
CO2 per sq m per Year
56
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
1
Address
28 Denham Avenue
Date
29 Apr 2013
Current
Potential
58
77
Property Type
House
Built Form
Semi-Detached
Constructed
1930-1949
Certificate History
29 Apr 2013
58
77
12 Jul 2012
39
76
Total Floor Area
96 sq m
Current CO2 Emissions Level
4.3
Potential CO2 Emissions Level
2.2
CO2 per sq m per Year
45
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
1
Address
34 Denham Avenue
Date
20 Aug 2015
Current
Potential
41
82
Property Type
House
Built Form
Semi-Detached
Constructed
1930-1949
Certificate History
20 Aug 2015
41
82
10 Mar 2010
60
65
Total Floor Area
92 sq m
Current CO2 Emissions Level
8.6
Potential CO2 Emissions Level
2.7
CO2 per sq m per Year
94
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
1
Address
40 Denham Avenue
Date
23 Aug 2015
Current
Potential
67
81
Property Type
House
Built Form
Semi-Detached
Constructed
1930-1949
Certificate History
23 Aug 2015
67
81
Total Floor Area
94 sq m
Current CO2 Emissions Level
4.0
Potential CO2 Emissions Level
2.4
CO2 per sq m per Year
43
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
1
Address
44 Denham Avenue
Date
10 Aug 2023
Current
Potential
71
85
Property Type
House
Built Form
Semi-Detached
Constructed
1930-1949
Certificate History
10 Aug 2023
71
85
Total Floor Area
100 sq m
Current CO2 Emissions Level
3.4
Potential CO2 Emissions Level
1.8
CO2 per sq m per Year
34
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
2
Address
48 Denham Avenue
Date
7 Oct 2008
Current
Potential
26
50
Property Type
House
Built Form
Semi-Detached
Constructed
1930-1949
Certificate History
7 Oct 2008
26
50
Total Floor Area
100 sq m
Current CO2 Emissions Level
12.0
Potential CO2 Emissions Level
6.9
CO2 per sq m per Year
119
Mains Gas Available
No
Habitable Rooms
6
Number of Extensions
1
Address
52 Denham Avenue
Date
28 Aug 2014
Current
Potential
68
80
Property Type
House
Built Form
Semi-Detached
Constructed
1930-1949
Certificate History
28 Aug 2014
68
80
Total Floor Area
111 sq m
Current CO2 Emissions Level
3.7
Potential CO2 Emissions Level
2.3
CO2 per sq m per Year
33
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
1
Address
54 Denham Avenue
Date
13 Mar 2015
Current
Potential
64
88
Property Type
House
Built Form
Semi-Detached
Constructed
1930-1949
Certificate History
13 Mar 2015
64
88
23 Oct 2012
32
78
Total Floor Area
83 sq m
Current CO2 Emissions Level
3.8
Potential CO2 Emissions Level
1.2
CO2 per sq m per Year
46
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
61 Denham Avenue
Date
24 Apr 2014
Current
Potential
69
81
Property Type
House
Built Form
Detached
Constructed
1983-1990
Certificate History
24 Apr 2014
69
81
Total Floor Area
170 sq m
Current CO2 Emissions Level
5.1
Potential CO2 Emissions Level
3.2
CO2 per sq m per Year
30
Mains Gas Available
Yes
Habitable Rooms
7
Number of Extensions
0
Address
63 Denham Avenue
Date
9 Aug 2024
Current
Potential
65
73
Property Type
House
Built Form
Detached
Constructed
1983-1990
Certificate History
9 Aug 2024
65
73
15 Feb 2010
56
67
Total Floor Area
209 sq m
Current CO2 Emissions Level
7.3
Potential CO2 Emissions Level
5.8
CO2 per sq m per Year
35
Mains Gas Available
Yes
Habitable Rooms
8
Number of Extensions
0
Address
64 Denham Avenue
Date
19 Feb 2013
Current
Potential
56
74
Property Type
House
Built Form
Semi-Detached
Constructed
1930-1949
Certificate History
19 Feb 2013
56
74
Total Floor Area
101 sq m
Current CO2 Emissions Level
5.6
Potential CO2 Emissions Level
3.3
CO2 per sq m per Year
55
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
1
Address
67 Denham Avenue
Date
16 Feb 2011
Current
Potential
47
57
Property Type
House
Built Form
Semi-Detached
Constructed
1930-1949
Certificate History
16 Feb 2011
47
57
Total Floor Area
102 sq m
Current CO2 Emissions Level
6.4
Potential CO2 Emissions Level
5.1
CO2 per sq m per Year
63
Mains Gas Available
No
Habitable Rooms
6
Number of Extensions
2
Address
68 Denham Avenue
Date
22 Jun 2017
Current
Potential
52
75
Property Type
House
Built Form
Semi-Detached
Constructed
1967-1975
Certificate History
22 Jun 2017
52
75
Total Floor Area
136 sq m
Current CO2 Emissions Level
7.4
Potential CO2 Emissions Level
4.0
CO2 per sq m per Year
54
Mains Gas Available
Yes
Habitable Rooms
7
Number of Extensions
2
Address
69 Denham Avenue
Date
20 Oct 2014
Current
Potential
64
79
Property Type
House
Built Form
Semi-Detached
Constructed
1930-1949
Certificate History
20 Oct 2014
64
79
Total Floor Area
90 sq m
Current CO2 Emissions Level
4.1
Potential CO2 Emissions Level
2.4
CO2 per sq m per Year
45
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
0
Address
70 Denham Avenue
Date
17 Aug 2015
Current
Potential
57
80
Property Type
House
Built Form
Semi-Detached
Constructed
1930-1949
Certificate History
17 Aug 2015
57
80
Total Floor Area
112 sq m
Current CO2 Emissions Level
6.3
Potential CO2 Emissions Level
2.9
CO2 per sq m per Year
56
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
1
Address
72 Denham Avenue
Date
30 Apr 2013
Current
Potential
66
79
Property Type
House
Built Form
Semi-Detached
Constructed
1930-1949
Certificate History
30 Apr 2013
66
79
Total Floor Area
102 sq m
Current CO2 Emissions Level
3.8
Potential CO2 Emissions Level
2.3
CO2 per sq m per Year
37
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
1
Address
73 Denham Avenue
Date
17 Mar 2015
Current
Potential
50
83
Property Type
House
Built Form
Semi-Detached
Constructed
1930-1949
Certificate History
17 Mar 2015
50
83
31 Mar 2010
57
71
Total Floor Area
109 sq m
Current CO2 Emissions Level
7.3
Potential CO2 Emissions Level
2.5
CO2 per sq m per Year
66
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
1
Address
74 Denham Avenue
Date
4 Aug 2013
Current
Potential
30
65
Property Type
House
Built Form
Semi-Detached
Constructed
1930-1949
Certificate History
4 Aug 2013
30
65
Total Floor Area
92 sq m
Current CO2 Emissions Level
12.0
Potential CO2 Emissions Level
6.8
CO2 per sq m per Year
135
Mains Gas Available
No
Habitable Rooms
5
Number of Extensions
1
Address
85 Denham Avenue
Date
16 Sep 2013
Current
Potential
54
80
Property Type
Bungalow
Built Form
Detached
Constructed
1950-1966
Certificate History
16 Sep 2013
54
80
Total Floor Area
73 sq m
Current CO2 Emissions Level
4.2
Potential CO2 Emissions Level
1.7
CO2 per sq m per Year
57
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
86 Denham Avenue
Date
2 Sep 2024
Current
Potential
68
85
Property Type
Bungalow
Built Form
Semi-Detached
Constructed
1967-1975
Certificate History
2 Sep 2024
68
85
25 Nov 2022
46
78
18 Jan 2012
57
70
Total Floor Area
67 sq m
Current CO2 Emissions Level
2.7
Potential CO2 Emissions Level
1.1
CO2 per sq m per Year
40
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
1
Address
87 Denham Avenue
Date
26 Apr 2022
Current
Potential
52
78
Property Type
House
Built Form
Semi-Detached
Constructed
1967-1975
Certificate History
26 Apr 2022
52
78
Total Floor Area
89 sq m
Current CO2 Emissions Level
5.9
Potential CO2 Emissions Level
2.9
CO2 per sq m per Year
66
Mains Gas Available
No
Habitable Rooms
4
Number of Extensions
0
Address
89 Denham Avenue
Date
3 Apr 2012
Current
Potential
67
84
Property Type
House
Built Form
Semi-Detached
Constructed
1950-1966
Certificate History
3 Apr 2012
67
84
Total Floor Area
92 sq m
Current CO2 Emissions Level
3.2
Potential CO2 Emissions Level
1.4
CO2 per sq m per Year
34
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
1
Address
91 Denham Avenue
Date
13 Jun 2024
Current
Potential
57
73
Property Type
House
Built Form
Semi-Detached
Constructed
1950-1966
Certificate History
13 Jun 2024
57
73
25 Oct 2009
52
65
21 Oct 2009
63
70
Total Floor Area
128 sq m
Current CO2 Emissions Level
6.3
Potential CO2 Emissions Level
4.0
CO2 per sq m per Year
49
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
1
Address
95 Denham Avenue
Date
30 Nov 2023
Current
Potential
56
82
Property Type
Bungalow
Built Form
Semi-Detached
Constructed
1967-1975
Certificate History
30 Nov 2023
56
82
Total Floor Area
95 sq m
Current CO2 Emissions Level
5.0
Potential CO2 Emissions Level
1.9
CO2 per sq m per Year
53
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
98 Denham Avenue
Date
9 Jun 2014
Current
Potential
64
72
Property Type
Bungalow
Built Form
Detached
Constructed
1976-1982
Certificate History
9 Jun 2014
64
72
23 Oct 2012
86
89
Total Floor Area
126 sq m
Current CO2 Emissions Level
3.5
Potential CO2 Emissions Level
2.5
CO2 per sq m per Year
28
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
99 Denham Avenue
Date
7 Jun 2015
Current
Potential
64
85
Property Type
Bungalow
Built Form
Detached
Constructed
1976-1982
Certificate History
7 Jun 2015
64
85
26 Apr 2012
24
74
Total Floor Area
77 sq m
Current CO2 Emissions Level
3.6
Potential CO2 Emissions Level
1.4
CO2 per sq m per Year
46
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
2
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.