PROPERTY ENERGY EFFICIENCY CERTIFICATE DETAILS
Llewellyn Avenue, CARDIFF, CF5 4EA
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 Llewellyn Avenue, CF5 4EA 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 Llewellyn Avenue, CARDIFF, CF5 4EA
Period Covered:
2008 - 31 January 2025
Address
Inspection Date
Current
Potential
Property Type
Built Form
Constructed
Address
32 Llewellyn Avenue, Ely
Date
21 Jan 2025
Current
Potential
60
80
Property Type
House
Built Form
Semi-Detached
Constructed
1900-1929
Certificate History
21 Jan 2025
60
80
Total Floor Area
90 sq m
Current CO2 Emissions Level
3.9
Potential CO2 Emissions Level
1.7
CO2 per sq m per Year
44
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
34 Llewellyn Avenue
Date
14 Feb 2022
Current
Potential
71
85
Property Type
House
Built Form
Semi-Detached
Constructed
1950-1966
Certificate History
14 Feb 2022
71
85
Total Floor Area
85 sq m
Current CO2 Emissions Level
2.8
Potential CO2 Emissions Level
1.3
CO2 per sq m per Year
33
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
36 LLEWELLYN AVENUE, ELY
Date
17 Nov 2020
Current
Potential
71
86
Property Type
House
Built Form
Semi-Detached
Constructed
1950-1966
Certificate History
17 Nov 2020
71
86
Total Floor Area
86 sq m
Current CO2 Emissions Level
2.8
Potential CO2 Emissions Level
1.1
CO2 per sq m per Year
32
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
0
Address
38 Llewellyn Avenue
Date
10 Nov 2021
Current
Potential
72
85
Property Type
House
Built Form
Semi-Detached
Constructed
1930-1949
Certificate History
10 Nov 2021
72
85
16 Mar 2011
60
74
1 Mar 2010
45
72
Total Floor Area
85 sq m
Current CO2 Emissions Level
2.7
Potential CO2 Emissions Level
1.3
CO2 per sq m per Year
32
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
39 LLEWELLYN AVENUE, ELY
Date
11 Dec 2020
Current
Potential
71
86
Property Type
House
Built Form
Semi-Detached
Constructed
1950-1966
Certificate History
11 Dec 2020
71
86
Total Floor Area
86 sq m
Current CO2 Emissions Level
2.8
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
40 LLEWELLYN AVENUE, ELY
Date
27 Nov 2020
Current
Potential
70
83
Property Type
House
Built Form
Semi-Detached
Constructed
1950-1966
Certificate History
27 Nov 2020
70
83
Total Floor Area
86 sq m
Current CO2 Emissions Level
3.0
Potential CO2 Emissions Level
1.5
CO2 per sq m per Year
34
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
41 Llewellyn Avenue
Date
4 Apr 2025
Current
Potential
72
85
Property Type
House
Built Form
Semi-Detached
Constructed
1967-1975
Certificate History
4 Apr 2025
72
85
23 May 2013
63
86
6 Mar 2013
62
84
18 May 2012
53
85
Total Floor Area
87 sq m
Current CO2 Emissions Level
2.8
Potential CO2 Emissions Level
1.3
CO2 per sq m per Year
32
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
42 Llewellyn Avenue
Date
9 Apr 2025
Current
Potential
71
85
Property Type
House
Built Form
Semi-Detached
Constructed
1930-1949
Certificate History
9 Apr 2025
71
85
20 Feb 2015
73
87
Total Floor Area
82 sq m
Current CO2 Emissions Level
2.7
Potential CO2 Emissions Level
1.3
CO2 per sq m per Year
32
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
44 Llewellyn Avenue
Date
24 Oct 2023
Current
Potential
67
85
Property Type
House
Built Form
Semi-Detached
Constructed
1950-1966
Certificate History
24 Oct 2023
67
85
5 Jun 2013
54
85
27 May 2013
63
84
Total Floor Area
88 sq m
Current CO2 Emissions Level
3.4
Potential CO2 Emissions Level
1.3
CO2 per sq m per Year
38
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
45 Llewellyn Avenue
Date
3 Apr 2019
Current
Potential
64
81
Property Type
House
Built Form
Semi-Detached
Constructed
1967-1975
Certificate History
3 Apr 2019
64
81
Total Floor Area
87 sq m
Current CO2 Emissions Level
3.8
Potential CO2 Emissions Level
1.8
CO2 per sq m per Year
44
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
46 Llewellyn Avenue
Date
7 Nov 2017
Current
Potential
68
84
Property Type
House
Built Form
Semi-Detached
Constructed
1950-1966
Certificate History
7 Nov 2017
68
84
Total Floor Area
86 sq m
Current CO2 Emissions Level
3.1
Potential CO2 Emissions Level
1.4
CO2 per sq m per Year
36
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
47 Llewellyn Avenue
Date
6 Mar 2015
Current
Potential
72
87
Property Type
House
Built Form
Semi-Detached
Constructed
1930-1949
Certificate History
6 Mar 2015
72
87
Total Floor Area
88 sq m
Current CO2 Emissions Level
2.6
Potential CO2 Emissions Level
1.1
CO2 per sq m per Year
30
Mains Gas Available
No
Habitable Rooms
4
Number of Extensions
0
Address
48 Llewellyn Avenue
Date
4 Sep 2012
Current
Potential
65
86
Property Type
House
Built Form
Semi-Detached
Constructed
1950-1966
Certificate History
4 Sep 2012
65
86
4 Sep 2012
65
79
Total Floor Area
82 sq m
Current CO2 Emissions Level
3.3
Potential CO2 Emissions Level
1.0
CO2 per sq m per Year
40
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
49 Llewellyn Avenue
Date
3 May 2012
Current
Potential
63
83
Property Type
House
Built Form
Semi-Detached
Constructed
1930-1949
Certificate History
3 May 2012
63
83
Total Floor Area
87 sq m
Current CO2 Emissions Level
3.6
Potential CO2 Emissions Level
1.4
CO2 per sq m per Year
42
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
50 LLEWELLYN AVENUE, ELY
Date
30 Nov 2020
Current
Potential
71
85
Property Type
House
Built Form
Semi-Detached
Constructed
1950-1966
Certificate History
30 Nov 2020
71
85
Total Floor Area
86 sq m
Current CO2 Emissions Level
2.8
Potential CO2 Emissions Level
1.3
CO2 per sq m per Year
33
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
51 Llewellyn Avenue
Date
4 Nov 2024
Current
Potential
72
85
Property Type
House
Built Form
Semi-Detached
Constructed
1930-1949
Certificate History
4 Nov 2024
72
85
9 Jun 2012
66
81
8 Sep 2009
74
75
Total Floor Area
88 sq m
Current CO2 Emissions Level
2.8
Potential CO2 Emissions Level
1.4
CO2 per sq m per Year
31
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
52 Llewellyn Avenue
Date
7 Mar 2025
Current
Potential
55
79
Property Type
House
Built Form
Semi-Detached
Constructed
1930-1949
Certificate History
7 Mar 2025
55
79
25 Sep 2014
61
82
10 Apr 2012
60
82
Total Floor Area
128 sq m
Current CO2 Emissions Level
6.5
Potential CO2 Emissions Level
2.9
CO2 per sq m per Year
51
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
2
Address
53 Llewellyn Avenue
Date
10 Sep 2025
Current
Potential
68
75
Property Type
House
Built Form
Semi-Detached
Constructed
1950-1966
Certificate History
10 Sep 2025
68
75
25 Jul 2014
65
87
29 Nov 2012
66
87
Total Floor Area
82 sq m
Current CO2 Emissions Level
2.5
Potential CO2 Emissions Level
2.1
CO2 per sq m per Year
30
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
54 Llewellyn Avenue
Date
29 Nov 2012
Current
Potential
66
87
Property Type
House
Built Form
Semi-Detached
Constructed
1950-1966
Certificate History
29 Nov 2012
66
87
Total Floor Area
82 sq m
Current CO2 Emissions Level
3.1
Potential CO2 Emissions Level
0.9
CO2 per sq m per Year
39
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
57 Llewellyn Avenue
Date
22 Jun 2020
Current
Potential
71
75
Property Type
Flat
Built Form
Semi-Detached
Constructed
1950-1966
Certificate History
22 Jun 2020
71
75
6 Feb 2014
59
72
Total Floor Area
47 sq m
Current CO2 Emissions Level
1.8
Potential CO2 Emissions Level
1.5
CO2 per sq m per Year
37
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
1
Address
57a Llewellyn Avenue
Date
12 Jul 2016
Current
Potential
67
76
Property Type
Flat
Built Form
Semi-Detached
Constructed
1950-1966
Certificate History
12 Jul 2016
67
76
Total Floor Area
43 sq m
Current CO2 Emissions Level
2.0
Potential CO2 Emissions Level
1.3
CO2 per sq m per Year
47
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
58 Llewellyn Avenue
Date
10 Aug 2016
Current
Potential
71
86
Property Type
House
Built Form
Semi-Detached
Constructed
1930-1949
Certificate History
10 Aug 2016
71
86
8 Jun 2014
55
82
17 Dec 2013
59
83
Total Floor Area
96 sq m
Current CO2 Emissions Level
3.0
Potential CO2 Emissions Level
1.3
CO2 per sq m per Year
31
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
59 Llewellyn Avenue
Date
15 Jul 2024
Current
Potential
59
83
Property Type
House
Built Form
Semi-Detached
Constructed
1930-1949
Certificate History
15 Jul 2024
59
83
14 Jun 2012
46
80
Total Floor Area
94 sq m
Current CO2 Emissions Level
4.6
Potential CO2 Emissions Level
1.6
CO2 per sq m per Year
49
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
2
Address
62 Llewellyn Avenue
Date
18 Jan 2023
Current
Potential
69
81
Property Type
House
Built Form
Semi-Detached
Constructed
1967-1975
Certificate History
18 Jan 2023
69
81
Total Floor Area
108 sq m
Current CO2 Emissions Level
3.7
Potential CO2 Emissions Level
2.1
CO2 per sq m per Year
34
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
2
Address
64 Llewellyn Avenue
Date
18 Feb 2014
Current
Potential
12
78
Property Type
House
Built Form
Semi-Detached
Constructed
1900-1929
Certificate History
18 Feb 2014
12
78
Total Floor Area
109 sq m
Current CO2 Emissions Level
10.0
Potential CO2 Emissions Level
2.4
CO2 per sq m per Year
93
Mains Gas Available
Yes
Habitable Rooms
6
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 2026.