PROPERTY ENERGY EFFICIENCY CERTIFICATE DETAILS
Guenever Close, CARDIFF, CF14 9AH
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 Guenever Close, CF14 9AH 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 Guenever Close, CARDIFF, CF14 9AH
Period Covered:
2008 - 31 January 2025
Address
Inspection Date
Current
Potential
Property Type
Built Form
Constructed
Address
10 Guenever Close, Thornhill
Date
15 May 2016
Current
Potential
63
85
Property Type
House
Built Form
Semi-Detached
Constructed
1976-1982
Certificate History
15 May 2016
63
85
Total Floor Area
86 sq m
Current CO2 Emissions Level
3.8
Potential CO2 Emissions Level
1.3
CO2 per sq m per Year
44
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
15 Guenever Close, Thornhill
Date
5 Sep 2012
Current
Potential
67
80
Property Type
House
Built Form
Semi-Detached
Constructed
1983-1990
Certificate History
5 Sep 2012
67
80
Total Floor Area
89 sq m
Current CO2 Emissions Level
3.0
Potential CO2 Emissions Level
1.6
CO2 per sq m per Year
34
Mains Gas Available
Yes
Habitable Rooms
7
Number of Extensions
1
Address
17 Guenever Close, Thornhill
Date
5 Feb 2017
Current
Potential
70
84
Property Type
House
Built Form
Semi-Detached
Constructed
1976-1982
Certificate History
5 Feb 2017
70
84
Total Floor Area
85 sq m
Current CO2 Emissions Level
2.9
Potential CO2 Emissions Level
1.4
CO2 per sq m per Year
35
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
19 Guenever Close, Thornhill
Date
4 Jan 2016
Current
Potential
72
85
Property Type
House
Built Form
Semi-Detached
Constructed
1983-1990
Certificate History
4 Jan 2016
72
85
Total Floor Area
88 sq m
Current CO2 Emissions Level
2.6
Potential CO2 Emissions Level
1.2
CO2 per sq m per Year
29
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
2 Guenever Close, Thornhill
Date
28 Aug 2023
Current
Potential
66
85
Property Type
House
Built Form
Detached
Constructed
1976-1982
Certificate History
28 Aug 2023
66
85
Total Floor Area
87 sq m
Current CO2 Emissions Level
3.6
Potential CO2 Emissions Level
1.3
CO2 per sq m per Year
41
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
22 Guenever Close, Thornhill
Date
29 Apr 2015
Current
Potential
67
88
Property Type
House
Built Form
Semi-Detached
Constructed
1983-1990
Certificate History
29 Apr 2015
67
88
Total Floor Area
57 sq m
Current CO2 Emissions Level
2.3
Potential CO2 Emissions Level
0.5
CO2 per sq m per Year
39
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
1
Address
26 Guenever Close, Thornhill
Date
29 Jul 2024
Current
Potential
75
88
Property Type
House
Built Form
Semi-Detached
Constructed
1983-1990
Certificate History
29 Jul 2024
75
88
7 Feb 2022
74
87
5 Nov 2015
71
86
Total Floor Area
89 sq m
Current CO2 Emissions Level
2.4
Potential CO2 Emissions Level
1.0
CO2 per sq m per Year
27
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
28 Guenever Close, Thornhill
Date
14 Nov 2013
Current
Potential
66
86
Property Type
House
Built Form
Semi-Detached
Constructed
1967-1975
Certificate History
14 Nov 2013
66
86
Total Floor Area
84 sq m
Current CO2 Emissions Level
3.2
Potential CO2 Emissions Level
1.1
CO2 per sq m per Year
38
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
3 Guenever Close, Thornhill
Date
16 Feb 2021
Current
Potential
62
87
Property Type
House
Built Form
Semi-Detached
Constructed
1983-1990
Certificate History
16 Feb 2021
62
87
22 Feb 2010
55
77
Total Floor Area
90 sq m
Current CO2 Emissions Level
4.1
Potential CO2 Emissions Level
1.1
CO2 per sq m per Year
46
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
30 Guenever Close, Thornhill
Date
31 Mar 2014
Current
Potential
66
83
Property Type
House
Built Form
Detached
Constructed
1976-1982
Certificate History
31 Mar 2014
66
83
Total Floor Area
87 sq m
Current CO2 Emissions Level
3.4
Potential CO2 Emissions Level
1.4
CO2 per sq m per Year
39
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
33 GUENEVER CLOSE, THORNHILL
Date
24 Sep 2020
Current
Potential
73
82
Property Type
House
Built Form
Detached
Constructed
1983-1990
Certificate History
24 Sep 2020
73
82
Total Floor Area
159 sq m
Current CO2 Emissions Level
4.3
Potential CO2 Emissions Level
2.8
CO2 per sq m per Year
27
Mains Gas Available
Yes
Habitable Rooms
8
Number of Extensions
3
Address
34 Guenever Close, Thornhill
Date
31 May 2015
Current
Potential
70
84
Property Type
House
Built Form
Semi-Detached
Constructed
1991-1995
Certificate History
31 May 2015
70
84
Total Floor Area
87 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
1
Address
35 Guenever Close, Thornhill
Date
5 May 2016
Current
Potential
74
86
Property Type
House
Built Form
Semi-Detached
Constructed
1976-1982
Certificate History
5 May 2016
74
86
Total Floor Area
94 sq m
Current CO2 Emissions Level
2.7
Potential CO2 Emissions Level
1.2
CO2 per sq m per Year
28
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
1
Address
36 Guenever Close, Thornhill
Date
16 Mar 2009
Current
Potential
62
70
Property Type
House
Built Form
Detached
Constructed
1976-1982
Certificate History
16 Mar 2009
62
70
Total Floor Area
148 sq m
Current CO2 Emissions Level
6.2
Potential CO2 Emissions Level
5.0
CO2 per sq m per Year
42
Mains Gas Available
Yes
Habitable Rooms
9
Number of Extensions
2
Address
38 GUENEVER CLOSE, THORNHILL
Date
15 Feb 2021
Current
Potential
68
86
Property Type
House
Built Form
Semi-Detached
Constructed
1976-1982
Certificate History
15 Feb 2021
68
86
Total Floor Area
73 sq m
Current CO2 Emissions Level
2.8
Potential CO2 Emissions Level
1.0
CO2 per sq m per Year
38
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
41 Guenever Close, Thornhill
Date
12 Apr 2019
Current
Potential
66
78
Property Type
House
Built Form
Detached
Constructed
1976-1982
Certificate History
12 Apr 2019
66
78
24 May 2010
61
69
Total Floor Area
130 sq m
Current CO2 Emissions Level
4.3
Potential CO2 Emissions Level
2.7
CO2 per sq m per Year
33
Mains Gas Available
Yes
Habitable Rooms
7
Number of Extensions
2
Address
48 Guenever Close, Thornhill
Date
23 Sep 2014
Current
Potential
58
84
Property Type
House
Built Form
Semi-Detached
Constructed
1967-1975
Certificate History
23 Sep 2014
58
84
3 Jul 2014
64
89
Total Floor Area
66 sq m
Current CO2 Emissions Level
3.5
Potential CO2 Emissions Level
1.1
CO2 per sq m per Year
53
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
5 Guenever Close, Thornhill
Date
3 Aug 2014
Current
Potential
55
84
Property Type
House
Built Form
Semi-Detached
Constructed
1976-1982
Certificate History
3 Aug 2014
55
84
Total Floor Area
80 sq m
Current CO2 Emissions Level
4.1
Potential CO2 Emissions Level
1.1
CO2 per sq m per Year
52
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
1
Address
50 Guenever Close, Thornhill
Date
7 Sep 2015
Current
Potential
69
88
Property Type
House
Built Form
Semi-Detached
Constructed
1976-1982
Certificate History
7 Sep 2015
69
88
Total Floor Area
71 sq m
Current CO2 Emissions Level
2.6
Potential CO2 Emissions Level
0.8
CO2 per sq m per Year
37
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
52 Guenever Close, Thornhill
Date
14 Aug 2023
Current
Potential
73
87
Property Type
House
Built Form
Semi-Detached
Constructed
1983-1990
Certificate History
14 Aug 2023
73
87
23 Nov 2008
57
74
Total Floor Area
72 sq m
Current CO2 Emissions Level
2.2
Potential CO2 Emissions Level
0.9
CO2 per sq m per Year
31
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
6 Guenever Close, Thornhill
Date
12 Aug 2014
Current
Potential
66
84
Property Type
House
Built Form
Detached
Constructed
1967-1975
Certificate History
12 Aug 2014
66
84
Total Floor Area
93 sq m
Current CO2 Emissions Level
3.7
Potential CO2 Emissions Level
1.5
CO2 per sq m per Year
40
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
62 Guenever Close, Thornhill
Date
16 Apr 2023
Current
Potential
69
84
Property Type
House
Built Form
Detached
Constructed
1983-1990
Certificate History
16 Apr 2023
69
84
Total Floor Area
88 sq m
Current CO2 Emissions Level
3.1
Potential CO2 Emissions Level
1.5
CO2 per sq m per Year
35
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
64 Guenever Close, Thornhill
Date
28 Mar 2013
Current
Potential
70
79
Property Type
House
Built Form
Detached
Constructed
1976-1982
Certificate History
28 Mar 2013
70
79
Total Floor Area
171 sq m
Current CO2 Emissions Level
4.8
Potential CO2 Emissions Level
3.2
CO2 per sq m per Year
28
Mains Gas Available
Yes
Habitable Rooms
9
Number of Extensions
1
Address
9 Guenever Close, Thornhill
Date
21 May 2015
Current
Potential
66
80
Property Type
House
Built Form
Detached
Constructed
1983-1990
Certificate History
21 May 2015
66
80
Total Floor Area
153 sq m
Current CO2 Emissions Level
5.6
Potential CO2 Emissions Level
3.1
CO2 per sq m per Year
37
Mains Gas Available
Yes
Habitable Rooms
8
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.
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Contains Royal Mail data © Royal Mail copyright and Database right 2025.