PROPERTY ENERGY EFFICIENCY CERTIFICATE DETAILS
Gwern Avenue, CAERPHILLY, CF83 4HA
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 Gwern Avenue, CF83 4HA 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 Gwern Avenue, CAERPHILLY, CF83 4HA
Period Covered:
2008 - 31 January 2025
Address
Inspection Date
Current
Potential
Property Type
Built Form
Constructed
Address
1 Dawn Villa, Gwern Avenue
Date
21 Dec 2022
Current
Potential
68
76
Property Type
Flat
Built Form
Semi-Detached
Constructed
1900-1929
Certificate History
21 Dec 2022
68
76
Total Floor Area
31 sq m
Current CO2 Emissions Level
1.7
Potential CO2 Emissions Level
1.1
CO2 per sq m per Year
56
Mains Gas Available
Yes
Habitable Rooms
1
Number of Extensions
0
Address
10 Gwern Avenue, Senghenydd
Date
11 Mar 2022
Current
Potential
61
84
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
11 Mar 2022
61
84
Total Floor Area
95 sq m
Current CO2 Emissions Level
4.9
Potential CO2 Emissions Level
1.9
CO2 per sq m per Year
51
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
1
Address
11 Gwern Avenue, Senghenydd
Date
8 May 2018
Current
Potential
41
84
Property Type
House
Built Form
End-Terrace
Constructed
1900-1929
Certificate History
8 May 2018
41
84
Total Floor Area
96 sq m
Current CO2 Emissions Level
8.0
Potential CO2 Emissions Level
1.9
CO2 per sq m per Year
83
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
1
Address
12 Gwern Avenue, Senghenydd
Date
15 Apr 2009
Current
Potential
63
65
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
15 Apr 2009
63
65
Total Floor Area
126 sq m
Current CO2 Emissions Level
5.6
Potential CO2 Emissions Level
5.4
CO2 per sq m per Year
42
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
2 Dawn Villa, Gwern Avenue
Date
21 Dec 2022
Current
Potential
67
76
Property Type
Flat
Built Form
Semi-Detached
Constructed
1900-1929
Certificate History
21 Dec 2022
67
76
Total Floor Area
33 sq m
Current CO2 Emissions Level
1.8
Potential CO2 Emissions Level
1.1
CO2 per sq m per Year
57
Mains Gas Available
Yes
Habitable Rooms
1
Number of Extensions
0
Address
20 Gwern Avenue, Senghenydd
Date
29 Oct 2019
Current
Potential
46
80
Property Type
House
Built Form
End-Terrace
Constructed
1900-1929
Certificate History
29 Oct 2019
46
80
Total Floor Area
109 sq m
Current CO2 Emissions Level
7.8
Potential CO2 Emissions Level
2.9
CO2 per sq m per Year
72
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
2
Address
21 Gwern Avenue, Senghenydd
Date
29 Oct 2019
Current
Potential
56
81
Property Type
House
Built Form
Mid-Terrace
Constructed
before 1900
Certificate History
29 Oct 2019
56
81
19 Jul 2009
60
66
Total Floor Area
99 sq m
Current CO2 Emissions Level
5.7
Potential CO2 Emissions Level
2.4
CO2 per sq m per Year
58
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
2
Address
22 Gwern Avenue, Senghenydd
Date
10 Feb 2022
Current
Potential
60
81
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
10 Feb 2022
60
81
Total Floor Area
88 sq m
Current CO2 Emissions Level
4.8
Potential CO2 Emissions Level
2.2
CO2 per sq m per Year
54
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
1
Address
23 Gwern Avenue, Senghenydd
Date
29 Oct 2019
Current
Potential
51
85
Property Type
House
Built Form
End-Terrace
Constructed
before 1900
Certificate History
29 Oct 2019
51
85
Total Floor Area
80 sq m
Current CO2 Emissions Level
5.6
Potential CO2 Emissions Level
1.5
CO2 per sq m per Year
71
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
1
Address
3 Dawn Villa, Gwern Avenue
Date
21 Dec 2022
Current
Potential
69
76
Property Type
Flat
Built Form
Semi-Detached
Constructed
1900-1929
Certificate History
21 Dec 2022
69
76
Total Floor Area
23 sq m
Current CO2 Emissions Level
1.4
Potential CO2 Emissions Level
0.9
CO2 per sq m per Year
60
Mains Gas Available
Yes
Habitable Rooms
1
Number of Extensions
0
Address
4 Dawn Villa, Gwern Avenue
Date
21 Dec 2022
Current
Potential
67
76
Property Type
Flat
Built Form
Semi-Detached
Constructed
1900-1929
Certificate History
21 Dec 2022
67
76
Total Floor Area
24 sq m
Current CO2 Emissions Level
1.6
Potential CO2 Emissions Level
0.9
CO2 per sq m per Year
65
Mains Gas Available
Yes
Habitable Rooms
1
Number of Extensions
0
Address
5 Dawn Villa, Gwern Avenue
Date
21 Dec 2022
Current
Potential
67
76
Property Type
Flat
Built Form
Semi-Detached
Constructed
1900-1929
Certificate History
21 Dec 2022
67
76
Total Floor Area
33 sq m
Current CO2 Emissions Level
1.9
Potential CO2 Emissions Level
1.1
CO2 per sq m per Year
57
Mains Gas Available
Yes
Habitable Rooms
1
Number of Extensions
0
Address
Flat Gwern-Y-Milwr Flats, Gwern Avenue
Date
24 May 2021
Current
Potential
70
72
Property Type
Flat
Built Form
Semi-Detached
Constructed
1900-1929
Certificate History
24 May 2021
70
72
Total Floor Area
65 sq m
Current CO2 Emissions Level
3.1
Potential CO2 Emissions Level
2.9
CO2 per sq m per Year
48
Mains Gas Available
No
Habitable Rooms
4
Number of Extensions
0
Address
Flat 1 Gwern-y-Milwr, Gwern Avenue
Date
14 May 2011
Current
Potential
58
58
Property Type
Flat
Built Form
N/A
Constructed
before 1900
Certificate History
14 May 2011
58
58
Total Floor Area
64 sq m
Current CO2 Emissions Level
5.1
Potential CO2 Emissions Level
5.1
CO2 per sq m per Year
80
Mains Gas Available
No
Habitable Rooms
3
Number of Extensions
0
Address
Flat 10 Gwern-y-Milwr, Gwern Avenue
Date
17 Oct 2021
Current
Potential
74
74
Property Type
Flat
Built Form
End-Terrace
Constructed
1991-1995
Certificate History
17 Oct 2021
74
74
14 May 2011
71
71
Total Floor Area
94 sq m
Current CO2 Emissions Level
4.6
Potential CO2 Emissions Level
4.6
CO2 per sq m per Year
48
Mains Gas Available
No
Habitable Rooms
4
Number of Extensions
0
Address
Flat 2 Gwern-y-Milwr, Gwern Avenue
Date
14 May 2011
Current
Potential
72
72
Property Type
Flat
Built Form
N/A
Constructed
before 1900
Certificate History
14 May 2011
72
72
Total Floor Area
37 sq m
Current CO2 Emissions Level
2.6
Potential CO2 Emissions Level
2.6
CO2 per sq m per Year
68
Mains Gas Available
No
Habitable Rooms
2
Number of Extensions
0
Address
Flat 2 Gwern-Y-Milwr Flats , Gwern Avenue
Date
24 May 2021
Current
Potential
70
79
Property Type
Flat
Built Form
Semi-Detached
Constructed
1900-1929
Certificate History
24 May 2021
70
79
Total Floor Area
39 sq m
Current CO2 Emissions Level
2.8
Potential CO2 Emissions Level
1.9
CO2 per sq m per Year
72
Mains Gas Available
No
Habitable Rooms
2
Number of Extensions
0
Address
Flat 3 Gwern-y-Milwr, Gwern Avenue
Date
14 May 2011
Current
Potential
68
68
Property Type
Flat
Built Form
N/A
Constructed
before 1900
Certificate History
14 May 2011
68
68
Total Floor Area
44 sq m
Current CO2 Emissions Level
3.2
Potential CO2 Emissions Level
3.2
CO2 per sq m per Year
72
Mains Gas Available
No
Habitable Rooms
2
Number of Extensions
0
Address
Flat 3 Gwern-Y-Milwr Flats , Gwern Avenue
Date
24 May 2021
Current
Potential
74
78
Property Type
Flat
Built Form
End-Terrace
Constructed
1900-1929
Certificate History
24 May 2021
74
78
Total Floor Area
49 sq m
Current CO2 Emissions Level
2.8
Potential CO2 Emissions Level
2.2
CO2 per sq m per Year
57
Mains Gas Available
No
Habitable Rooms
2
Number of Extensions
0
Address
Flat 4 Gwern-y-Milwr, Gwern Avenue
Date
14 May 2011
Current
Potential
68
70
Property Type
Flat
Built Form
N/A
Constructed
before 1900
Certificate History
14 May 2011
68
70
Total Floor Area
36 sq m
Current CO2 Emissions Level
2.8
Potential CO2 Emissions Level
2.8
CO2 per sq m per Year
77
Mains Gas Available
No
Habitable Rooms
2
Number of Extensions
0
Address
Flat 4 Gwern-Y-Milwr Flats , Gwern Avenue
Date
24 May 2021
Current
Potential
66
74
Property Type
Flat
Built Form
End-Terrace
Constructed
1900-1929
Certificate History
24 May 2021
66
74
Total Floor Area
37 sq m
Current CO2 Emissions Level
2.7
Potential CO2 Emissions Level
2.0
CO2 per sq m per Year
73
Mains Gas Available
No
Habitable Rooms
2
Number of Extensions
0
Address
Flat 5 Gwern-y-Milwr, Gwern Avenue
Date
17 Oct 2021
Current
Potential
77
77
Property Type
Flat
Built Form
End-Terrace
Constructed
1991-1995
Certificate History
17 Oct 2021
77
77
14 May 2011
71
71
Total Floor Area
51 sq m
Current CO2 Emissions Level
2.8
Potential CO2 Emissions Level
2.8
CO2 per sq m per Year
54
Mains Gas Available
No
Habitable Rooms
3
Number of Extensions
1
Address
Flat 6 Gwern-y-Milwr, Gwern Avenue
Date
14 May 2011
Current
Potential
71
71
Property Type
Flat
Built Form
N/A
Constructed
before 1900
Certificate History
14 May 2011
71
71
Total Floor Area
45 sq m
Current CO2 Emissions Level
2.9
Potential CO2 Emissions Level
2.9
CO2 per sq m per Year
64
Mains Gas Available
No
Habitable Rooms
3
Number of Extensions
1
Address
Flat 6 Gwern-Y-Milwr Flats , Gwern Avenue
Date
24 May 2021
Current
Potential
75
77
Property Type
Flat
Built Form
Semi-Detached
Constructed
1900-1929
Certificate History
24 May 2021
75
77
Total Floor Area
68 sq m
Current CO2 Emissions Level
2.5
Potential CO2 Emissions Level
2.3
CO2 per sq m per Year
37
Mains Gas Available
No
Habitable Rooms
3
Number of Extensions
0
Address
Flat 7 Gwern-y-Milwr, Gwern Avenue
Date
14 May 2011
Current
Potential
69
69
Property Type
Flat
Built Form
N/A
Constructed
before 1900
Certificate History
14 May 2011
69
69
Total Floor Area
44 sq m
Current CO2 Emissions Level
3.1
Potential CO2 Emissions Level
3.1
CO2 per sq m per Year
70
Mains Gas Available
No
Habitable Rooms
2
Number of Extensions
0
Address
Flat 7 Gwern-Y-Milwr Flats , Gwern Avenue
Date
27 May 2021
Current
Potential
75
81
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
27 May 2021
75
81
Total Floor Area
45 sq m
Current CO2 Emissions Level
2.0
Potential CO2 Emissions Level
1.0
CO2 per sq m per Year
45
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
Flat 8 Gwern-y-Milwr, Gwern Avenue
Date
14 May 2011
Current
Potential
69
69
Property Type
Flat
Built Form
N/A
Constructed
before 1900
Certificate History
14 May 2011
69
69
Total Floor Area
44 sq m
Current CO2 Emissions Level
3.1
Potential CO2 Emissions Level
3.1
CO2 per sq m per Year
70
Mains Gas Available
No
Habitable Rooms
2
Number of Extensions
0
Address
Flat 8 Gwern-Y-Milwr Flats , Gwern Avenue
Date
24 May 2021
Current
Potential
74
78
Property Type
Flat
Built Form
End-Terrace
Constructed
1900-1929
Certificate History
24 May 2021
74
78
Total Floor Area
37 sq m
Current CO2 Emissions Level
1.9
Potential CO2 Emissions Level
1.6
CO2 per sq m per Year
52
Mains Gas Available
No
Habitable Rooms
2
Number of Extensions
0
Address
Flat 9 Gwern-y-Milwr, Gwern Avenue
Date
16 Apr 2011
Current
Potential
73
73
Property Type
Flat
Built Form
N/A
Constructed
1991-1995
Certificate History
16 Apr 2011
73
73
Total Floor Area
81 sq m
Current CO2 Emissions Level
3.8
Potential CO2 Emissions Level
3.8
CO2 per sq m per Year
47
Mains Gas Available
No
Habitable Rooms
4
Number of Extensions
0
Address
Flat 9 Gwern-Y-Milwr Flats, Gwern Avenue
Date
24 May 2021
Current
Potential
67
71
Property Type
Flat
Built Form
End-Terrace
Constructed
1900-1929
Certificate History
24 May 2021
67
71
Total Floor Area
71 sq m
Current CO2 Emissions Level
3.7
Potential CO2 Emissions Level
3.3
CO2 per sq m per Year
52
Mains Gas Available
No
Habitable Rooms
3
Number of Extensions
0
Address
Flat A, 2, Gwern Avenue
Date
1 Nov 2011
Current
Potential
60
62
Property Type
Maisonette
Built Form
Semi-Detached
Constructed
1900-1929
Certificate History
1 Nov 2011
60
62
Total Floor Area
81 sq m
Current CO2 Emissions Level
4.0
Potential CO2 Emissions Level
3.9
CO2 per sq m per Year
50
Mains Gas Available
Yes
Habitable Rooms
3
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.