PROPERTY ENERGY EFFICIENCY CERTIFICATE DETAILS
William Street, CAERPHILLY, CF83 8DQ
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 William Street, CF83 8DQ 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 William Street, CAERPHILLY, CF83 8DQ
Period Covered:
2008 - 31 October 2024
Address
Inspection Date
Current
Potential
Property Type
Built Form
Constructed
Address
1 William Street, Trethomas
Date
27 Jan 2023
Current
Potential
64
86
Property Type
House
Built Form
End-Terrace
Constructed
1900-1929
Certificate History
27 Jan 2023
64
86
7 Mar 2013
20
75
Total Floor Area
80 sq m
Current CO2 Emissions Level
3.9
Potential CO2 Emissions Level
1.4
CO2 per sq m per Year
49
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
2
Address
12 William Street, Trethomas
Date
7 Jul 2022
Current
Potential
65
88
Property Type
House
Built Form
Mid-Terrace
Constructed
before 1900
Certificate History
7 Jul 2022
65
88
25 Jun 2022
70
85
Total Floor Area
75 sq m
Current CO2 Emissions Level
3.5
Potential CO2 Emissions Level
1.0
CO2 per sq m per Year
46
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
1
Address
13 William Street, Trethomas
Date
19 Sep 2018
Current
Potential
57
77
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
19 Sep 2018
57
77
Total Floor Area
83 sq m
Current CO2 Emissions Level
5.0
Potential CO2 Emissions Level
2.7
CO2 per sq m per Year
60
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
1
Address
14 William Street, Trethomas
Date
16 Feb 2022
Current
Potential
66
83
Property Type
House
Built Form
Mid-Terrace
Constructed
before 1900
Certificate History
16 Feb 2022
66
83
Total Floor Area
75 sq m
Current CO2 Emissions Level
3.4
Potential CO2 Emissions Level
1.7
CO2 per sq m per Year
46
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
1
Address
16 William Street, Trethomas
Date
7 Oct 2024
Current
Potential
65
86
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
7 Oct 2024
65
86
19 May 2011
61
64
Total Floor Area
85 sq m
Current CO2 Emissions Level
3.9
Potential CO2 Emissions Level
1.5
CO2 per sq m per Year
46
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
17 William Street, Trethomas
Date
12 Nov 2015
Current
Potential
45
78
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
12 Nov 2015
45
78
7 Apr 2009
51
66
Total Floor Area
107 sq m
Current CO2 Emissions Level
8.0
Potential CO2 Emissions Level
3.2
CO2 per sq m per Year
75
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
1
Address
2 William Street, Trethomas
Date
14 Feb 2014
Current
Potential
41
86
Property Type
House
Built Form
End-Terrace
Constructed
before 1900
Certificate History
14 Feb 2014
41
86
Total Floor Area
72 sq m
Current CO2 Emissions Level
5.5
Potential CO2 Emissions Level
0.9
CO2 per sq m per Year
77
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
1
Address
20 William Street, Trethomas
Date
26 Jul 2020
Current
Potential
74
77
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
26 Jul 2020
74
77
20 Mar 2020
74
77
29 Jan 2009
46
46
Total Floor Area
30 sq m
Current CO2 Emissions Level
1.2
Potential CO2 Emissions Level
1.0
CO2 per sq m per Year
41
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
23 William Street, Trethomas
Date
18 Dec 2013
Current
Potential
54
82
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
18 Dec 2013
54
82
8 Mar 2013
51
85
10 Feb 2010
67
75
Total Floor Area
93 sq m
Current CO2 Emissions Level
4.9
Potential CO2 Emissions Level
1.7
CO2 per sq m per Year
52
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
1
Address
25 William Street, Trethomas
Date
17 Mar 2015
Current
Potential
69
88
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
17 Mar 2015
69
88
Total Floor Area
85 sq m
Current CO2 Emissions Level
3.3
Potential CO2 Emissions Level
1.2
CO2 per sq m per Year
39
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
1
Address
26 William Street, Trethomas
Date
22 Jun 2020
Current
Potential
57
82
Property Type
House
Built Form
End-Terrace
Constructed
1900-1929
Certificate History
22 Jun 2020
57
82
Total Floor Area
84 sq m
Current CO2 Emissions Level
5.0
Potential CO2 Emissions Level
2.1
CO2 per sq m per Year
59
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
1
Address
29 William Street, Trethomas
Date
26 Mar 2015
Current
Potential
56
86
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
26 Mar 2015
56
86
15 Apr 2014
65
90
Total Floor Area
77 sq m
Current CO2 Emissions Level
4.8
Potential CO2 Emissions Level
1.4
CO2 per sq m per Year
62
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
2
Address
33 William Street, Trethomas
Date
25 Nov 2009
Current
Potential
62
71
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
25 Nov 2009
62
71
Total Floor Area
100 sq m
Current CO2 Emissions Level
4.9
Potential CO2 Emissions Level
3.7
CO2 per sq m per Year
49
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
1
Address
35 William Street, Trethomas
Date
6 Oct 2013
Current
Potential
63
84
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
6 Oct 2013
63
84
Total Floor Area
81 sq m
Current CO2 Emissions Level
3.4
Potential CO2 Emissions Level
1.2
CO2 per sq m per Year
42
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
1
Address
37 William Street, Trethomas
Date
19 Mar 2020
Current
Potential
59
78
Property Type
House
Built Form
Mid-Terrace
Constructed
before 1900
Certificate History
19 Mar 2020
59
78
Total Floor Area
82 sq m
Current CO2 Emissions Level
4.6
Potential CO2 Emissions Level
2.6
CO2 per sq m per Year
57
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
2
Address
41 William Street, Trethomas
Date
4 Sep 2016
Current
Potential
62
81
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
4 Sep 2016
62
81
Total Floor Area
84 sq m
Current CO2 Emissions Level
3.9
Potential CO2 Emissions Level
2.0
CO2 per sq m per Year
46
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
2
Address
43 William Street, Trethomas
Date
6 Oct 2013
Current
Potential
46
79
Property Type
House
Built Form
Mid-Terrace
Constructed
before 1900
Certificate History
6 Oct 2013
46
79
Total Floor Area
79 sq m
Current CO2 Emissions Level
5.2
Potential CO2 Emissions Level
1.9
CO2 per sq m per Year
66
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
1
Address
45 William Street, Trethomas
Date
8 Jul 2013
Current
Potential
64
89
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
8 Jul 2013
64
89
Total Floor Area
88 sq m
Current CO2 Emissions Level
3.5
Potential CO2 Emissions Level
0.8
CO2 per sq m per Year
40
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
47 William Street, Trethomas
Date
23 May 2023
Current
Potential
73
90
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
23 May 2023
73
90
Total Floor Area
80 sq m
Current CO2 Emissions Level
2.7
Potential CO2 Emissions Level
1.0
CO2 per sq m per Year
34
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
1
Address
49 William Street, Trethomas
Date
9 Aug 2021
Current
Potential
53
77
Property Type
House
Built Form
End-Terrace
Constructed
1900-1929
Certificate History
9 Aug 2021
53
77
Total Floor Area
97 sq m
Current CO2 Emissions Level
6.2
Potential CO2 Emissions Level
3.0
CO2 per sq m per Year
64
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
2
Address
6 William Street, Trethomas
Date
9 Mar 2015
Current
Potential
68
87
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
9 Mar 2015
68
87
30 Aug 2011
63
70
Total Floor Area
84 sq m
Current CO2 Emissions Level
3.4
Potential CO2 Emissions Level
1.3
CO2 per sq m per Year
40
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
1
Address
8 William Street, Trethomas
Date
30 Oct 2014
Current
Potential
67
89
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
30 Oct 2014
67
89
6 Sep 2013
48
80
Total Floor Area
82 sq m
Current CO2 Emissions Level
3.0
Potential CO2 Emissions Level
0.7
CO2 per sq m per Year
36
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
1
Address
9 William Street, Trethomas
Date
22 Feb 2022
Current
Potential
63
80
Property Type
House
Built Form
Mid-Terrace
Constructed
before 1900
Certificate History
22 Feb 2022
63
80
15 Feb 2010
54
69
Total Floor Area
81 sq m
Current CO2 Emissions Level
4.1
Potential CO2 Emissions Level
2.3
CO2 per sq m per Year
51
Mains Gas Available
Yes
Habitable Rooms
3
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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