PROPERTY ENERGY EFFICIENCY CERTIFICATE DETAILS
Derwydd Avenue, AMMANFORD, SA18 1PH

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 Derwydd Avenue, SA18 1PH 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 Derwydd Avenue, AMMANFORD, SA18 1PH
Period Covered: 2008 - 31 October 2024

Address
Inspection Date
Current
Potential
Property Type
Built Form
Constructed
Address
10 Derwydd Avenue, Gwaun Cae Gurwen
Date
29 Mar 2020
Current
Potential
75
86
Property Type
House
Built Form
Semi-Detached
Constructed
1930-1949
+
Certificate History
29 Mar 2020
75
86
31 Aug 2011
73
73
Total Floor Area
116 sq m
Current CO2 Emissions Level
3.1
Potential CO2 Emissions Level
1.7
CO2 per sq m per Year
26
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
12 Derwydd Avenue, Gwaun Cae Gurwen
Date
29 Mar 2020
Current
Potential
75
88
Property Type
House
Built Form
Semi-Detached
Constructed
1930-1949
+
Certificate History
29 Mar 2020
75
88
31 Aug 2011
70
71
Total Floor Area
86 sq m
Current CO2 Emissions Level
2.4
Potential CO2 Emissions Level
1.1
CO2 per sq m per Year
28
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
13 Derwydd Avenue, Gwaun Cae Gurwen
Date
26 Apr 2021
Current
Potential
55
73
Property Type
House
Built Form
Semi-Detached
Constructed
1930-1949
+
Certificate History
26 Apr 2021
55
73
Total Floor Area
92 sq m
Current CO2 Emissions Level
5.2
Potential CO2 Emissions Level
3.1
CO2 per sq m per Year
57
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
1
Address
15 Derwydd Avenue, Gwaun Cae Gurwen
Date
29 Mar 2020
Current
Potential
73
88
Property Type
House
Built Form
Semi-Detached
Constructed
1930-1949
+
Certificate History
29 Mar 2020
73
88
31 Aug 2011
70
71
Total Floor Area
84 sq m
Current CO2 Emissions Level
2.5
Potential CO2 Emissions Level
1.1
CO2 per sq m per Year
30
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
17 Derwydd Avenue, Gwaun Cae Gurwen
Date
29 Mar 2020
Current
Potential
57
85
Property Type
House
Built Form
Semi-Detached
Constructed
1930-1949
+
Certificate History
29 Mar 2020
57
85
31 Aug 2011
57
60
Total Floor Area
86 sq m
Current CO2 Emissions Level
4.7
Potential CO2 Emissions Level
1.8
CO2 per sq m per Year
55
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
0
Address
18 Derwydd Avenue, Gwaun Cae Gurwen
Date
29 Mar 2020
Current
Potential
75
88
Property Type
House
Built Form
Semi-Detached
Constructed
1930-1949
+
Certificate History
29 Mar 2020
75
88
31 Aug 2011
58
67
Total Floor Area
82 sq m
Current CO2 Emissions Level
2.3
Potential CO2 Emissions Level
0.9
CO2 per sq m per Year
28
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
19 Derwydd Avenue, Gwaun Cae Gurwen
Date
20 Jan 2011
Current
Potential
69
72
Property Type
House
Built Form
Semi-Detached
Constructed
1930-1949
+
Certificate History
20 Jan 2011
69
72
Total Floor Area
105 sq m
Current CO2 Emissions Level
3.5
Potential CO2 Emissions Level
3.3
CO2 per sq m per Year
38
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
1
Address
2 Derwydd Avenue, Gwaun Cae Gurwen
Date
29 Mar 2020
Current
Potential
73
84
Property Type
House
Built Form
Semi-Detached
Constructed
1930-1949
+
Certificate History
29 Mar 2020
73
84
31 Aug 2011
59
69
Total Floor Area
116 sq m
Current CO2 Emissions Level
3.4
Potential CO2 Emissions Level
2.0
CO2 per sq m per Year
29
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
20 Derwydd Avenue, Gwaun Cae Gurwen
Date
29 Mar 2020
Current
Potential
73
86
Property Type
House
Built Form
Semi-Detached
Constructed
1930-1949
+
Certificate History
29 Mar 2020
73
86
31 Aug 2011
70
70
Total Floor Area
82 sq m
Current CO2 Emissions Level
2.4
Potential CO2 Emissions Level
1.1
CO2 per sq m per Year
29
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
21 Derwydd Avenue, Gwaun Cae Gurwen
Date
29 Mar 2020
Current
Potential
73
86
Property Type
House
Built Form
Semi-Detached
Constructed
1930-1949
+
Certificate History
29 Mar 2020
73
86
1 Sep 2011
70
70
Total Floor Area
82 sq m
Current CO2 Emissions Level
2.4
Potential CO2 Emissions Level
1.1
CO2 per sq m per Year
29
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
22 Derwydd Avenue, Gwaun Cae Gurwen
Date
29 Mar 2020
Current
Potential
75
88
Property Type
House
Built Form
Semi-Detached
Constructed
1930-1949
+
Certificate History
29 Mar 2020
75
88
31 Aug 2011
58
67
Total Floor Area
82 sq m
Current CO2 Emissions Level
2.3
Potential CO2 Emissions Level
0.9
CO2 per sq m per Year
28
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
23 Derwydd Avenue, Gwaun Cae Gurwen
Date
29 Mar 2020
Current
Potential
75
88
Property Type
House
Built Form
Semi-Detached
Constructed
1930-1949
+
Certificate History
29 Mar 2020
75
88
31 Aug 2011
58
67
Total Floor Area
82 sq m
Current CO2 Emissions Level
2.3
Potential CO2 Emissions Level
0.9
CO2 per sq m per Year
28
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
24 Derwydd Avenue, Gwaun Cae Gurwen
Date
29 Mar 2020
Current
Potential
61
78
Property Type
House
Built Form
Semi-Detached
Constructed
1930-1949
+
Certificate History
29 Mar 2020
61
78
31 Aug 2011
58
67
Total Floor Area
82 sq m
Current CO2 Emissions Level
2.3
Potential CO2 Emissions Level
1.0
CO2 per sq m per Year
29
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
26 Derwydd Avenue, Gwaun Cae Gurwen
Date
29 Mar 2020
Current
Potential
74
87
Property Type
House
Built Form
Semi-Detached
Constructed
1930-1949
+
Certificate History
29 Mar 2020
74
87
31 Aug 2011
70
70
Total Floor Area
82 sq m
Current CO2 Emissions Level
2.3
Potential CO2 Emissions Level
1.0
CO2 per sq m per Year
28
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
28 Derwydd Avenue, Gwaun Cae Gurwen
Date
29 Mar 2020
Current
Potential
75
88
Property Type
House
Built Form
Semi-Detached
Constructed
1930-1949
+
Certificate History
29 Mar 2020
75
88
31 Aug 2011
61
61
Total Floor Area
82 sq m
Current CO2 Emissions Level
2.4
Potential CO2 Emissions Level
1.0
CO2 per sq m per Year
29
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
3 Derwydd Avenue, Gwaun Cae Gurwen
Date
15 Oct 2014
Current
Potential
54
82
Property Type
House
Built Form
Semi-Detached
Constructed
1900-1929
+
Certificate History
15 Oct 2014
54
82
Total Floor Area
99 sq m
Current CO2 Emissions Level
8.3
Potential CO2 Emissions Level
-0.4
CO2 per sq m per Year
84
Mains Gas Available
No
Habitable Rooms
5
Number of Extensions
0
Address
34 Derwydd Avenue, Gwaun Cae Gurwen
Date
29 Mar 2020
Current
Potential
74
88
Property Type
House
Built Form
Semi-Detached
Constructed
1930-1949
+
Certificate History
29 Mar 2020
74
88
31 Aug 2011
58
67
Total Floor Area
82 sq m
Current CO2 Emissions Level
2.4
Potential CO2 Emissions Level
1.1
CO2 per sq m per Year
29
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
36 Derwydd Avenue, Gwaun Cae Gurwen
Date
6 Oct 2008
Current
Potential
41
44
Property Type
House
Built Form
Semi-Detached
Constructed
1950-1966
+
Certificate History
6 Oct 2008
41
44
Total Floor Area
84 sq m
Current CO2 Emissions Level
6.1
Potential CO2 Emissions Level
5.7
CO2 per sq m per Year
73
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
38 Derwydd Avenue, Gwaun Cae Gurwen
Date
29 Mar 2020
Current
Potential
74
88
Property Type
House
Built Form
Semi-Detached
Constructed
1950-1966
+
Certificate History
29 Mar 2020
74
88
31 Aug 2011
71
71
Total Floor Area
75 sq m
Current CO2 Emissions Level
2.3
Potential CO2 Emissions Level
0.9
CO2 per sq m per Year
31
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
4 Derwydd Avenue, Gwaun Cae Gurwen
Date
13 Oct 2014
Current
Potential
69
87
Property Type
House
Built Form
Semi-Detached
Constructed
1950-1966
+
Certificate History
13 Oct 2014
69
87
Total Floor Area
86 sq m
Current CO2 Emissions Level
2.9
Potential CO2 Emissions Level
1.1
CO2 per sq m per Year
34
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
0
Address
40 Derwydd Avenue, Gwaun Cae Gurwen
Date
29 Mar 2020
Current
Potential
74
89
Property Type
House
Built Form
Semi-Detached
Constructed
1950-1966
+
Certificate History
29 Mar 2020
74
89
31 Aug 2011
71
71
Total Floor Area
75 sq m
Current CO2 Emissions Level
2.2
Potential CO2 Emissions Level
0.8
CO2 per sq m per Year
29
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
42 Derwydd Avenue, Gwaun Cae Gurwen
Date
29 Mar 2020
Current
Potential
74
88
Property Type
House
Built Form
Semi-Detached
Constructed
1950-1966
+
Certificate History
29 Mar 2020
74
88
31 Aug 2011
71
71
Total Floor Area
75 sq m
Current CO2 Emissions Level
2.3
Potential CO2 Emissions Level
0.9
CO2 per sq m per Year
31
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
44 Derwydd Avenue, Gwaun Cae Gurwen
Date
29 Mar 2020
Current
Potential
74
89
Property Type
House
Built Form
Semi-Detached
Constructed
1950-1966
+
Certificate History
29 Mar 2020
74
89
31 Aug 2011
71
71
Total Floor Area
75 sq m
Current CO2 Emissions Level
2.2
Potential CO2 Emissions Level
0.8
CO2 per sq m per Year
29
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
46 Derwydd Avenue, Gwaun Cae Gurwen
Date
29 Mar 2020
Current
Potential
67
85
Property Type
House
Built Form
Semi-Detached
Constructed
1950-1966
+
Certificate History
29 Mar 2020
67
85
31 Aug 2011
71
71
Total Floor Area
75 sq m
Current CO2 Emissions Level
3.0
Potential CO2 Emissions Level
1.3
CO2 per sq m per Year
40
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
5 Derwydd Avenue, Gwaun Cae Gurwen
Date
29 Mar 2020
Current
Potential
68
76
Property Type
House
Built Form
Semi-Detached
Constructed
1930-1949
+
Certificate History
29 Mar 2020
68
76
Total Floor Area
172 sq m
Current CO2 Emissions Level
6.0
Potential CO2 Emissions Level
4.7
CO2 per sq m per Year
35
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
50 Derwydd Avenue, Gwaun Cae Gurwen
Date
30 Jan 2023
Current
Potential
83
86
Property Type
House
Built Form
Semi-Detached
Constructed
1950-1966
+
Certificate History
30 Jan 2023
83
86
5 Oct 2011
64
72
Total Floor Area
77 sq m
Current CO2 Emissions Level
1.6
Potential CO2 Emissions Level
1.2
CO2 per sq m per Year
21
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
1
Address
52 Derwydd Avenue, Gwaun Cae Gurwen
Date
29 Mar 2020
Current
Potential
71
85
Property Type
House
Built Form
Semi-Detached
Constructed
1950-1966
+
Certificate History
29 Mar 2020
71
85
31 Aug 2011
71
71
Total Floor Area
75 sq m
Current CO2 Emissions Level
2.6
Potential CO2 Emissions Level
1.3
CO2 per sq m per Year
35
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
6 Derwydd Avenue, Gwaun Cae Gurwen
Date
31 Aug 2011
Current
Potential
70
71
Property Type
House
Built Form
Semi-Detached
Constructed
1930-1949
+
Certificate History
31 Aug 2011
70
71
Total Floor Area
86 sq m
Current CO2 Emissions Level
3.0
Potential CO2 Emissions Level
2.9
CO2 per sq m per Year
35
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
7 Derwydd Avenue, Gwaun Cae Gurwen
Date
29 Mar 2020
Current
Potential
73
86
Property Type
House
Built Form
Semi-Detached
Constructed
1930-1949
+
Certificate History
29 Mar 2020
73
86
31 Aug 2011
72
72
Total Floor Area
86 sq m
Current CO2 Emissions Level
2.7
Potential CO2 Emissions Level
1.4
CO2 per sq m per Year
31
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
0
Address
8 Derwydd Avenue, Gwaun Cae Gurwen
Date
29 Mar 2020
Current
Potential
76
87
Property Type
House
Built Form
Semi-Detached
Constructed
1930-1949
+
Certificate History
29 Mar 2020
76
87
31 Aug 2011
73
73
Total Floor Area
116 sq m
Current CO2 Emissions Level
3.0
Potential CO2 Emissions Level
1.6
CO2 per sq m per Year
26
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
9 Derwydd Avenue, Gwaun Cae Gurwen
Date
29 Mar 2020
Current
Potential
72
85
Property Type
House
Built Form
Semi-Detached
Constructed
1930-1949
+
Certificate History
29 Mar 2020
72
85
31 Aug 2011
72
72
Total Floor Area
86 sq m
Current CO2 Emissions Level
2.8
Potential CO2 Emissions Level
1.5
CO2 per sq m per Year
32
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
0
Address
Alder Grove, Derwydd Avenue
Date
4 Nov 2021
Current
Potential
51
70
Property Type
Bungalow
Built Form
Detached
Constructed
1991-1995
+
Certificate History
4 Nov 2021
51
70
6 May 2010
72
76
Total Floor Area
117 sq m
Current CO2 Emissions Level
6.2
Potential CO2 Emissions Level
3.9
CO2 per sq m per Year
54
Mains Gas Available
No
Habitable Rooms
4
Number of Extensions
1
Bands

A
92 - 100
B
81 - 91
C
69 - 80
D
55 -68
E
39 -54
F
54 -38
G
0 - 20

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.