PROPERTY ENERGY EFFICIENCY CERTIFICATE DETAILS
Rhedyw Road, CAERNARFON, LL54 6SN
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 Rhedyw Road, LL54 6SN 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 Rhedyw Road, CAERNARFON, LL54 6SN
Period Covered:
2008 - 31 January 2025
Address
Inspection Date
Current
Potential
Property Type
Built Form
Constructed
Address
103 Rhedyw Road, Llanllyfni
Date
14 Aug 2018
Current
Potential
63
80
Property Type
House
Built Form
Mid-Terrace
Constructed
before 1900
Certificate History
14 Aug 2018
63
80
Total Floor Area
103 sq m
Current CO2 Emissions Level
4.6
Potential CO2 Emissions Level
2.4
CO2 per sq m per Year
45
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
1
Address
107 Rhedyw Road, Llanllyfni
Date
19 Aug 2022
Current
Potential
60
79
Property Type
House
Built Form
Mid-Terrace
Constructed
before 1900
Certificate History
19 Aug 2022
60
79
Total Floor Area
63 sq m
Current CO2 Emissions Level
3.5
Potential CO2 Emissions Level
1.8
CO2 per sq m per Year
55
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
1
Address
109 Rhedyw Road, Llanllyfni
Date
2 Mar 2010
Current
Potential
51
56
Property Type
House
Built Form
Mid-Terrace
Constructed
before 1900
Certificate History
2 Mar 2010
51
56
Total Floor Area
65 sq m
Current CO2 Emissions Level
5.2
Potential CO2 Emissions Level
4.7
CO2 per sq m per Year
80
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
1
Address
115 Rhedyw Road, Llanllyfni
Date
17 Feb 2012
Current
Potential
46
56
Property Type
House
Built Form
End-Terrace
Constructed
before 1900
Certificate History
17 Feb 2012
46
56
Total Floor Area
94 sq m
Current CO2 Emissions Level
7.5
Potential CO2 Emissions Level
6.0
CO2 per sq m per Year
66
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
1
Address
117 Rhedyw Road, Llanllyfni
Date
11 Nov 2015
Current
Potential
65
100
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
11 Nov 2015
65
100
1 Dec 2014
67
86
Total Floor Area
130 sq m
Current CO2 Emissions Level
5.6
Potential CO2 Emissions Level
0.7
CO2 per sq m per Year
43
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
0
Address
121 Rhedyw Road, Llanllyfni
Date
14 Mar 2018
Current
Potential
57
87
Property Type
House
Built Form
End-Terrace
Constructed
1900-1929
Certificate History
14 Mar 2018
57
87
24 Sep 2014
33
86
Total Floor Area
85 sq m
Current CO2 Emissions Level
4.8
Potential CO2 Emissions Level
1.3
CO2 per sq m per Year
56
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
1
Address
13 Rhedyw Road, Llanllyfni
Date
28 Feb 2024
Current
Potential
64
86
Property Type
House
Built Form
Mid-Terrace
Constructed
before 1900
Certificate History
28 Feb 2024
64
86
Total Floor Area
78 sq m
Current CO2 Emissions Level
3.5
Potential CO2 Emissions Level
1.2
CO2 per sq m per Year
45
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
1
Address
15 Rhedyw Road, Llanllyfni
Date
20 Nov 2025
Current
Potential
74
80
Property Type
House
Built Form
Mid-Terrace
Constructed
before 1900
Certificate History
20 Nov 2025
74
80
13 Dec 2010
79
81
Total Floor Area
88 sq m
Current CO2 Emissions Level
2.5
Potential CO2 Emissions Level
2.2
CO2 per sq m per Year
29
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
1
Address
19 RHEDYW ROAD, LLANLLYFNI
Date
24 Mar 2021
Current
Potential
68
85
Property Type
House
Built Form
Mid-Terrace
Constructed
before 1900
Certificate History
24 Mar 2021
68
85
Total Floor Area
72 sq m
Current CO2 Emissions Level
2.9
Potential CO2 Emissions Level
1.3
CO2 per sq m per Year
40
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
2
Address
21 Rhedyw Road, Llanllyfni
Date
9 Oct 2025
Current
Potential
63
75
Property Type
House
Built Form
Mid-Terrace
Constructed
before 1900
Certificate History
9 Oct 2025
63
75
Total Floor Area
69 sq m
Current CO2 Emissions Level
3.3
Potential CO2 Emissions Level
2.5
CO2 per sq m per Year
48
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
3
Address
23 Rhedyw Road, Llanllyfni
Date
17 Oct 2019
Current
Potential
62
85
Property Type
House
Built Form
Mid-Terrace
Constructed
before 1900
Certificate History
17 Oct 2019
62
85
Total Floor Area
74 sq m
Current CO2 Emissions Level
3.7
Potential CO2 Emissions Level
1.3
CO2 per sq m per Year
50
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
3
Address
29 Rhedyw Road, Llanllyfni
Date
7 Dec 2012
Current
Potential
57
81
Property Type
House
Built Form
End-Terrace
Constructed
before 1900
Certificate History
7 Dec 2012
57
81
Total Floor Area
130 sq m
Current CO2 Emissions Level
6.1
Potential CO2 Emissions Level
2.5
CO2 per sq m per Year
47
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
2
Address
3 Rhedyw Road, Llanllyfni
Date
12 Sep 2025
Current
Potential
68
81
Property Type
House
Built Form
End-Terrace
Constructed
before 1900
Certificate History
12 Sep 2025
68
81
16 Oct 2015
58
84
24 Jul 2013
59
91
Total Floor Area
75 sq m
Current CO2 Emissions Level
2.9
Potential CO2 Emissions Level
1.8
CO2 per sq m per Year
38
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
1
Address
31 Rhedyw Road, Llanllyfni
Date
12 Aug 2022
Current
Potential
72
86
Property Type
House
Built Form
Mid-Terrace
Constructed
before 1900
Certificate History
12 Aug 2022
72
86
25 Jun 2014
51
84
Total Floor Area
74 sq m
Current CO2 Emissions Level
2.5
Potential CO2 Emissions Level
1.2
CO2 per sq m per Year
33
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
2
Address
35 Rhedyw Road, Llanllyfni
Date
24 Aug 2021
Current
Potential
41
86
Property Type
House
Built Form
Mid-Terrace
Constructed
before 1900
Certificate History
24 Aug 2021
41
86
Total Floor Area
77 sq m
Current CO2 Emissions Level
5.7
Potential CO2 Emissions Level
2.6
CO2 per sq m per Year
73
Mains Gas Available
No
Habitable Rooms
5
Number of Extensions
1
Address
37 Rhedyw Road, Llanllyfni
Date
26 Feb 2018
Current
Potential
52
87
Property Type
House
Built Form
Mid-Terrace
Constructed
before 1900
Certificate History
26 Feb 2018
52
87
28 Jan 2012
50
60
Total Floor Area
82 sq m
Current CO2 Emissions Level
6.3
Potential CO2 Emissions Level
1.3
CO2 per sq m per Year
77
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
1
Address
39 Rhedyw Road, Llanllyfni
Date
20 Aug 2024
Current
Potential
36
84
Property Type
House
Built Form
Mid-Terrace
Constructed
before 1900
Certificate History
20 Aug 2024
36
84
Total Floor Area
80 sq m
Current CO2 Emissions Level
6.6
Potential CO2 Emissions Level
1.5
CO2 per sq m per Year
82
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
2
Address
41 Rhedyw Road, Llanllyfni
Date
27 Jul 2018
Current
Potential
67
84
Property Type
House
Built Form
Mid-Terrace
Constructed
before 1900
Certificate History
27 Jul 2018
67
84
Total Floor Area
99 sq m
Current CO2 Emissions Level
3.8
Potential CO2 Emissions Level
1.9
CO2 per sq m per Year
39
Mains Gas Available
Yes
Habitable Rooms
7
Number of Extensions
2
Address
45 Rhedyw Road, Llanllyfni
Date
20 Jul 2016
Current
Potential
69
88
Property Type
House
Built Form
Mid-Terrace
Constructed
before 1900
Certificate History
20 Jul 2016
69
88
Total Floor Area
67 sq m
Current CO2 Emissions Level
2.7
Potential CO2 Emissions Level
0.9
CO2 per sq m per Year
40
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
1
Address
5 Rhedyw Road, Llanllyfni
Date
18 Jun 2023
Current
Potential
73
84
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
18 Jun 2023
73
84
Total Floor Area
115 sq m
Current CO2 Emissions Level
3.5
Potential CO2 Emissions Level
2.1
CO2 per sq m per Year
31
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
2
Address
51 Rhedyw Road, Llanllyfni
Date
18 Apr 2023
Current
Potential
69
82
Property Type
House
Built Form
Mid-Terrace
Constructed
before 1900
Certificate History
18 Apr 2023
69
82
28 Feb 2012
51
58
Total Floor Area
82 sq m
Current CO2 Emissions Level
2.8
Potential CO2 Emissions Level
1.6
CO2 per sq m per Year
35
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
2
Address
55 Rhedyw Road, Llanllyfni
Date
9 Oct 2025
Current
Potential
63
74
Property Type
House
Built Form
Mid-Terrace
Constructed
before 1900
Certificate History
9 Oct 2025
63
74
Total Floor Area
76 sq m
Current CO2 Emissions Level
3.1
Potential CO2 Emissions Level
2.3
CO2 per sq m per Year
41
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
2
Address
59 Rhedyw Road, Llanllyfni
Date
12 Aug 2022
Current
Potential
69
87
Property Type
House
Built Form
Mid-Terrace
Constructed
before 1900
Certificate History
12 Aug 2022
69
87
Total Floor Area
59 sq m
Current CO2 Emissions Level
2.4
Potential CO2 Emissions Level
0.9
CO2 per sq m per Year
41
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
1
Address
61 Rhedyw Road, Llanllyfni
Date
28 Apr 2013
Current
Potential
58
86
Property Type
House
Built Form
Mid-Terrace
Constructed
before 1900
Certificate History
28 Apr 2013
58
86
Total Floor Area
69 sq m
Current CO2 Emissions Level
3.5
Potential CO2 Emissions Level
0.9
CO2 per sq m per Year
51
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
1
Address
63 Rhedyw Road, Llanllyfni
Date
11 Sep 2022
Current
Potential
65
86
Property Type
House
Built Form
Mid-Terrace
Constructed
before 1900
Certificate History
11 Sep 2022
65
86
29 Apr 2010
67
74
Total Floor Area
55 sq m
Current CO2 Emissions Level
2.5
Potential CO2 Emissions Level
0.8
CO2 per sq m per Year
46
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
2
Address
65 Rhedyw Road, Llanllyfni
Date
12 Aug 2022
Current
Potential
60
87
Property Type
House
Built Form
End-Terrace
Constructed
before 1900
Certificate History
12 Aug 2022
60
87
Total Floor Area
58 sq m
Current CO2 Emissions Level
3.3
Potential CO2 Emissions Level
0.8
CO2 per sq m per Year
57
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
1
Address
69 Rhedyw Road, Llanllyfni
Date
30 Jul 2013
Current
Potential
69
85
Property Type
Bungalow
Built Form
Detached
Constructed
1976-1982
Certificate History
30 Jul 2013
69
85
Total Floor Area
71 sq m
Current CO2 Emissions Level
2.6
Potential CO2 Emissions Level
1.1
CO2 per sq m per Year
36
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
7 Rhedyw Road, Llanllyfni
Date
28 Nov 2012
Current
Potential
61
90
Property Type
House
Built Form
Mid-Terrace
Constructed
before 1900
Certificate History
28 Nov 2012
61
90
Total Floor Area
59 sq m
Current CO2 Emissions Level
3.0
Potential CO2 Emissions Level
0.4
CO2 per sq m per Year
50
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
81 Rhedyw Road, Llanllyfni
Date
23 Feb 2018
Current
Potential
69
81
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
23 Feb 2018
69
81
Total Floor Area
87 sq m
Current CO2 Emissions Level
3.1
Potential CO2 Emissions Level
1.9
CO2 per sq m per Year
36
Mains Gas Available
Yes
Habitable Rooms
8
Number of Extensions
1
Address
89 Rhedyw Road, Llanllyfni
Date
6 Jul 2020
Current
Potential
61
81
Property Type
House
Built Form
Mid-Terrace
Constructed
before 1900
Certificate History
6 Jul 2020
61
81
Total Floor Area
107 sq m
Current CO2 Emissions Level
5.1
Potential CO2 Emissions Level
2.3
CO2 per sq m per Year
48
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
2
Address
91 Rhedyw Road, Llanllyfni
Date
12 Sep 2017
Current
Potential
59
78
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
12 Sep 2017
59
78
Total Floor Area
98 sq m
Current CO2 Emissions Level
4.6
Potential CO2 Emissions Level
2.3
CO2 per sq m per Year
47
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
2
Address
97 Rhedyw Road, Llanllyfni
Date
3 Oct 2008
Current
Potential
67
72
Property Type
House
Built Form
Mid-Terrace
Constructed
before 1900
Certificate History
3 Oct 2008
67
72
Total Floor Area
85 sq m
Current CO2 Emissions Level
3.8
Potential CO2 Emissions Level
3.4
CO2 per sq m per Year
44
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
1
Address
99 Rhedyw Road, Llanllyfni
Date
27 Apr 2022
Current
Potential
66
87
Property Type
House
Built Form
Mid-Terrace
Constructed
before 1900
Certificate History
27 Apr 2022
66
87
Total Floor Area
83 sq m
Current CO2 Emissions Level
3.5
Potential CO2 Emissions Level
1.2
CO2 per sq m per Year
42
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
2
Address
Gwelfor, Rhedyw Road
Date
19 May 2016
Current
Potential
37
70
Property Type
House
Built Form
Detached
Constructed
before 1900
Certificate History
19 May 2016
37
70
Total Floor Area
152 sq m
Current CO2 Emissions Level
14.0
Potential CO2 Emissions Level
6.6
CO2 per sq m per Year
89
Mains Gas Available
Yes
Habitable Rooms
7
Number of Extensions
0
Address
Rhoslan, 91a Rhedyw Road
Date
2 Sep 2025
Current
Potential
92
123
Property Type
House
Built Form
Mid-Terrace
Constructed
before 1900
Certificate History
2 Sep 2025
92
123
10 Aug 2023
43
88
Total Floor Area
66 sq m
Current CO2 Emissions Level
0.2
Potential CO2 Emissions Level
-0.4
CO2 per sq m per Year
3
Mains Gas Available
No
Habitable Rooms
4
Number of Extensions
1
Address
Y Fflat An Tir Na Nog, 79 Rhedyw Road
Date
22 Mar 2019
Current
Potential
75
75
Property Type
Flat
Built Form
End-Terrace
Constructed
1900-1929
Certificate History
22 Mar 2019
75
75
Total Floor Area
65 sq m
Current CO2 Emissions Level
1.8
Potential CO2 Emissions Level
1.8
CO2 per sq m per Year
28
Mains Gas Available
Yes
Habitable Rooms
4
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.
Contains public sector information licensed under the Open Government Licence v3.0.
Contains Royal Mail data © Royal Mail copyright and Database right 2026.