PROPERTY ENERGY EFFICIENCY CERTIFICATE DETAILS
Llewellyn Avenue, CARDIFF, CF5 4DZ
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 4DZ 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 4DZ
Period Covered:
2008 - 31 January 2025
Address
Inspection Date
Current
Potential
Property Type
Built Form
Constructed
Address
1 Llewellyn Avenue
Date
8 Jul 2015
Current
Potential
73
83
Property Type
House
Built Form
Semi-Detached
Constructed
1930-1949
Certificate History
8 Jul 2015
73
83
Total Floor Area
113 sq m
Current CO2 Emissions Level
3.3
Potential CO2 Emissions Level
1.9
CO2 per sq m per Year
29
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
1
Address
10 Llewellyn Avenue
Date
2 Dec 2013
Current
Potential
59
79
Property Type
House
Built Form
Semi-Detached
Constructed
1930-1949
Certificate History
2 Dec 2013
59
79
Total Floor Area
102 sq m
Current CO2 Emissions Level
4.4
Potential CO2 Emissions Level
2.0
CO2 per sq m per Year
43
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
12 Llewellyn Avenue
Date
4 Mar 2019
Current
Potential
61
83
Property Type
House
Built Form
Semi-Detached
Constructed
1900-1929
Certificate History
4 Mar 2019
61
83
3 Apr 2014
52
85
Total Floor Area
87 sq m
Current CO2 Emissions Level
4.0
Potential CO2 Emissions Level
1.5
CO2 per sq m per Year
47
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
13 Llewellyn Avenue
Date
16 Dec 2015
Current
Potential
72
84
Property Type
House
Built Form
Semi-Detached
Constructed
1950-1966
Certificate History
16 Dec 2015
72
84
Total Floor Area
84 sq m
Current CO2 Emissions Level
2.6
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
14 LLEWELLYN AVENUE, ELY
Date
31 Mar 2021
Current
Potential
60
77
Property Type
House
Built Form
Semi-Detached
Constructed
1900-1929
Certificate History
31 Mar 2021
60
77
Total Floor Area
98 sq m
Current CO2 Emissions Level
4.6
Potential CO2 Emissions Level
2.5
CO2 per sq m per Year
47
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
2
Address
15 LLEWELLYN AVENUE
Date
30 Jun 2021
Current
Potential
71
85
Property Type
House
Built Form
Semi-Detached
Constructed
1930-1949
Certificate History
30 Jun 2021
71
85
Total Floor Area
79 sq m
Current CO2 Emissions Level
2.6
Potential CO2 Emissions Level
1.2
CO2 per sq m per Year
33
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
1
Address
16 LLEWELLYN AVENUE, ELY
Date
23 Nov 2020
Current
Potential
72
85
Property Type
House
Built Form
Semi-Detached
Constructed
1950-1966
Certificate History
23 Nov 2020
72
85
Total Floor Area
93 sq m
Current CO2 Emissions Level
2.9
Potential CO2 Emissions Level
1.4
CO2 per sq m per Year
31
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
18 Llewellyn Avenue
Date
19 Apr 2023
Current
Potential
67
84
Property Type
House
Built Form
Semi-Detached
Constructed
1930-1949
Certificate History
19 Apr 2023
67
84
18 Feb 2013
57
84
14 Oct 2009
59
65
Total Floor Area
81 sq m
Current CO2 Emissions Level
3.2
Potential CO2 Emissions Level
1.4
CO2 per sq m per Year
40
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
19 LLEWELLYN AVENUE, ELY
Date
24 Sep 2020
Current
Potential
70
84
Property Type
House
Built Form
Semi-Detached
Constructed
1950-1966
Certificate History
24 Sep 2020
70
84
Total Floor Area
88 sq m
Current CO2 Emissions Level
2.9
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
2 Llewellyn Avenue
Date
3 Jul 2013
Current
Potential
61
85
Property Type
House
Built Form
Semi-Detached
Constructed
1950-1966
Certificate History
3 Jul 2013
61
85
Total Floor Area
86 sq m
Current CO2 Emissions Level
3.8
Potential CO2 Emissions Level
1.1
CO2 per sq m per Year
44
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
20 Llewellyn Avenue
Date
18 Aug 2019
Current
Potential
72
85
Property Type
House
Built Form
Semi-Detached
Constructed
1930-1949
Certificate History
18 Aug 2019
72
85
22 Feb 2012
16
33
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
24 Llewellyn Avenue
Date
13 Sep 2021
Current
Potential
60
78
Property Type
House
Built Form
Semi-Detached
Constructed
1930-1949
Certificate History
13 Sep 2021
60
78
Total Floor Area
88 sq m
Current CO2 Emissions Level
4.3
Potential CO2 Emissions Level
2.3
CO2 per sq m per Year
49
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
26 Llewellyn Avenue
Date
31 Aug 2012
Current
Potential
65
78
Property Type
House
Built Form
Semi-Detached
Constructed
1950-1966
Certificate History
31 Aug 2012
65
78
Total Floor Area
88 sq m
Current CO2 Emissions Level
3.5
Potential CO2 Emissions Level
2.1
CO2 per sq m per Year
40
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
28 Llewellyn Avenue
Date
15 Jul 2024
Current
Potential
59
78
Property Type
House
Built Form
Semi-Detached
Constructed
1950-1966
Certificate History
15 Jul 2024
59
78
Total Floor Area
100 sq m
Current CO2 Emissions Level
5.0
Potential CO2 Emissions Level
2.5
CO2 per sq m per Year
50
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
3 Llewellyn Avenue
Date
10 Feb 2016
Current
Potential
71
85
Property Type
House
Built Form
Semi-Detached
Constructed
1950-1966
Certificate History
10 Feb 2016
71
85
Total Floor Area
98 sq m
Current CO2 Emissions Level
3.1
Potential CO2 Emissions Level
1.5
CO2 per sq m per Year
31
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
30 Llewellyn Avenue
Date
13 Aug 2012
Current
Potential
65
81
Property Type
House
Built Form
Semi-Detached
Constructed
1950-1966
Certificate History
13 Aug 2012
65
81
4 Nov 2011
36
62
5 Mar 2010
44
73
Total Floor Area
71 sq m
Current CO2 Emissions Level
2.9
Potential CO2 Emissions Level
1.4
CO2 per sq m per Year
41
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
4 Llewellyn Avenue
Date
14 Feb 2011
Current
Potential
69
73
Property Type
House
Built Form
Semi-Detached
Constructed
1900-1929
Certificate History
14 Feb 2011
69
73
Total Floor Area
89 sq m
Current CO2 Emissions Level
3.6
Potential CO2 Emissions Level
3.1
CO2 per sq m per Year
41
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
5 Llewellyn Avenue
Date
28 Jun 2017
Current
Potential
65
80
Property Type
House
Built Form
Semi-Detached
Constructed
1900-1929
Certificate History
28 Jun 2017
65
80
Total Floor Area
83 sq m
Current CO2 Emissions Level
3.5
Potential CO2 Emissions Level
1.9
CO2 per sq m per Year
42
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
6 Llewellyn Avenue
Date
4 May 2017
Current
Potential
66
83
Property Type
House
Built Form
Semi-Detached
Constructed
1950-1966
Certificate History
4 May 2017
66
83
4 May 2017
65
83
24 Apr 2016
61
83
24 Apr 2016
60
83
14 Aug 2012
58
73
Total Floor Area
91 sq m
Current CO2 Emissions Level
3.3
Potential CO2 Emissions Level
1.4
CO2 per sq m per Year
37
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
0
Address
7 Llewellyn Avenue
Date
13 Aug 2012
Current
Potential
69
83
Property Type
House
Built Form
Semi-Detached
Constructed
1950-1966
Certificate History
13 Aug 2012
69
83
Total Floor Area
84 sq m
Current CO2 Emissions Level
2.9
Potential CO2 Emissions Level
1.4
CO2 per sq m per Year
34
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
8 Llewellyn Avenue
Date
17 Apr 2017
Current
Potential
71
87
Property Type
House
Built Form
Semi-Detached
Constructed
1900-1929
Certificate History
17 Apr 2017
71
87
Total Floor Area
79 sq m
Current CO2 Emissions Level
2.6
Potential CO2 Emissions Level
1.0
CO2 per sq m per Year
33
Mains Gas Available
Yes
Habitable Rooms
5
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.