PROPERTY ENERGY EFFICIENCY CERTIFICATE DETAILS
High Street, CAERNARFON, LL54 6PL

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 High Street, LL54 6PL 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 High Street, CAERNARFON, LL54 6PL
Period Covered: 2008 - 31 October 2024

Address
Inspection Date
Current
Potential
Property Type
Built Form
Constructed
Address
1 High Street, Penygroes
Date
15 Dec 2014
Current
Potential
54
82
Property Type
House
Built Form
End-Terrace
Constructed
before 1900
+
Certificate History
15 Dec 2014
54
82
12 May 2014
57
84
Total Floor Area
113 sq m
Current CO2 Emissions Level
6.4
Potential CO2 Emissions Level
2.4
CO2 per sq m per Year
56
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
2
Address
11 High Street, Penygroes
Date
26 Nov 2018
Current
Potential
62
72
Property Type
House
Built Form
Mid-Terrace
Constructed
before 1900
+
Certificate History
26 Nov 2018
62
72
29 Jun 2010
13
27
Total Floor Area
134 sq m
Current CO2 Emissions Level
6.0
Potential CO2 Emissions Level
4.6
CO2 per sq m per Year
45
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
1
Address
19 High Street, Penygroes
Date
12 Jul 2023
Current
Potential
54
74
Property Type
House
Built Form
End-Terrace
Constructed
before 1900
+
Certificate History
12 Jul 2023
54
74
Total Floor Area
500 sq m
Current CO2 Emissions Level
21.0
Potential CO2 Emissions Level
12.0
CO2 per sq m per Year
42
Mains Gas Available
Yes
Habitable Rooms
11
Number of Extensions
1
Address
2 High Street, Penygroes
Date
22 Sep 2015
Current
Potential
58
103
Property Type
House
Built Form
Mid-Terrace
Constructed
before 1900
+
Certificate History
22 Sep 2015
58
103
8 May 2013
69
83
Total Floor Area
80 sq m
Current CO2 Emissions Level
4.4
Potential CO2 Emissions Level
0.0
CO2 per sq m per Year
55
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
1
Address
21 High Street, Penygroes
Date
28 Sep 2009
Current
Potential
60
64
Property Type
House
Built Form
End-Terrace
Constructed
before 1900
+
Certificate History
28 Sep 2009
60
64
Total Floor Area
76 sq m
Current CO2 Emissions Level
4.4
Potential CO2 Emissions Level
4.1
CO2 per sq m per Year
58
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
1
Address
22 High Street, Penygroes
Date
23 Oct 2016
Current
Potential
25
93
Property Type
House
Built Form
Semi-Detached
Constructed
before 1900
+
Certificate History
23 Oct 2016
25
93
Total Floor Area
39 sq m
Current CO2 Emissions Level
7.3
Potential CO2 Emissions Level
0.2
CO2 per sq m per Year
190
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
23 High Street, Penygroes
Date
25 Aug 2020
Current
Potential
63
87
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
+
Certificate History
25 Aug 2020
63
87
5 Aug 2014
27
75
22 Apr 2009
60
67
Total Floor Area
52 sq m
Current CO2 Emissions Level
2.7
Potential CO2 Emissions Level
0.8
CO2 per sq m per Year
53
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
1
Address
25 High Street, Penygroes
Date
7 Oct 2022
Current
Potential
69
87
Property Type
House
Built Form
Mid-Terrace
Constructed
before 1900
+
Certificate History
7 Oct 2022
69
87
17 Jul 2018
68
83
Total Floor Area
49 sq m
Current CO2 Emissions Level
2.1
Potential CO2 Emissions Level
0.8
CO2 per sq m per Year
44
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
1
Address
27 High Street, Penygroes
Date
22 Apr 2009
Current
Potential
60
68
Property Type
House
Built Form
Mid-Terrace
Constructed
before 1900
+
Certificate History
22 Apr 2009
60
68
Total Floor Area
49 sq m
Current CO2 Emissions Level
3.4
Potential CO2 Emissions Level
2.8
CO2 per sq m per Year
70
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
2
Address
31 High Street, Penygroes
Date
21 Apr 2011
Current
Potential
57
58
Property Type
House
Built Form
Mid-Terrace
Constructed
before 1900
+
Certificate History
21 Apr 2011
57
58
Total Floor Area
62 sq m
Current CO2 Emissions Level
4.1
Potential CO2 Emissions Level
4.0
CO2 per sq m per Year
66
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
2
Address
32 High Street, Penygroes
Date
10 Oct 2022
Current
Potential
55
82
Property Type
House
Built Form
Mid-Terrace
Constructed
before 1900
+
Certificate History
10 Oct 2022
55
82
Total Floor Area
100 sq m
Current CO2 Emissions Level
5.5
Potential CO2 Emissions Level
2.0
CO2 per sq m per Year
55
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
33 High Street, Penygroes
Date
24 Jun 2020
Current
Potential
65
86
Property Type
House
Built Form
Mid-Terrace
Constructed
before 1900
+
Certificate History
24 Jun 2020
65
86
5 Sep 2012
35
89
Total Floor Area
53 sq m
Current CO2 Emissions Level
2.6
Potential CO2 Emissions Level
0.9
CO2 per sq m per Year
49
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
1
Address
34 High Street, Penygroes
Date
16 Oct 2012
Current
Potential
67
79
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1900-1929
+
Certificate History
16 Oct 2012
67
79
Total Floor Area
50 sq m
Current CO2 Emissions Level
2.1
Potential CO2 Emissions Level
1.1
CO2 per sq m per Year
43
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
34A High Street, Penygroes
Date
14 May 2023
Current
Potential
69
77
Property Type
Maisonette
Built Form
Mid-Terrace
Constructed
before 1900
+
Certificate History
14 May 2023
69
77
Total Floor Area
51 sq m
Current CO2 Emissions Level
2.2
Potential CO2 Emissions Level
1.4
CO2 per sq m per Year
42
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
1
Address
34b High Street, Penygroes
Date
26 Jan 2023
Current
Potential
69
77
Property Type
Flat
Built Form
Mid-Terrace
Constructed
before 1900
+
Certificate History
26 Jan 2023
69
77
Total Floor Area
37 sq m
Current CO2 Emissions Level
1.6
Potential CO2 Emissions Level
1.0
CO2 per sq m per Year
44
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
35 High Street, Penygroes
Date
15 Feb 2018
Current
Potential
64
83
Property Type
House
Built Form
Mid-Terrace
Constructed
before 1900
+
Certificate History
15 Feb 2018
64
83
Total Floor Area
59 sq m
Current CO2 Emissions Level
2.9
Potential CO2 Emissions Level
1.3
CO2 per sq m per Year
49
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
1
Address
36 High Street, Penygroes
Date
22 Jun 2023
Current
Potential
67
89
Property Type
House
Built Form
Mid-Terrace
Constructed
before 1900
+
Certificate History
22 Jun 2023
67
89
5 Feb 2010
65
75
Total Floor Area
56 sq m
Current CO2 Emissions Level
2.4
Potential CO2 Emissions Level
0.6
CO2 per sq m per Year
42
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
37 High Street, Penygroes
Date
11 Aug 2019
Current
Potential
62
86
Property Type
House
Built Form
Mid-Terrace
Constructed
before 1900
+
Certificate History
11 Aug 2019
62
86
Total Floor Area
59 sq m
Current CO2 Emissions Level
3.1
Potential CO2 Emissions Level
1.1
CO2 per sq m per Year
53
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
2
Address
38 High Street, Penygroes
Date
18 Apr 2023
Current
Potential
55
84
Property Type
House
Built Form
Mid-Terrace
Constructed
before 1900
+
Certificate History
18 Apr 2023
55
84
Total Floor Area
84 sq m
Current CO2 Emissions Level
6.0
Potential CO2 Emissions Level
3.2
CO2 per sq m per Year
71
Mains Gas Available
No
Habitable Rooms
4
Number of Extensions
0
Address
39 High Street, Penygroes
Date
8 Nov 2016
Current
Potential
60
87
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
+
Certificate History
8 Nov 2016
60
87
Total Floor Area
48 sq m
Current CO2 Emissions Level
2.9
Potential CO2 Emissions Level
0.7
CO2 per sq m per Year
60
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
1
Address
41 High Street, Penygroes
Date
18 Jul 2018
Current
Potential
61
85
Property Type
House
Built Form
Mid-Terrace
Constructed
before 1900
+
Certificate History
18 Jul 2018
61
85
2 Feb 2016
36
82
Total Floor Area
55 sq m
Current CO2 Emissions Level
3.1
Potential CO2 Emissions Level
1.1
CO2 per sq m per Year
56
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
1
Address
42 High Street, Penygroes
Date
29 Feb 2012
Current
Potential
61
62
Property Type
House
Built Form
Mid-Terrace
Constructed
before 1900
+
Certificate History
29 Feb 2012
61
62
Total Floor Area
90 sq m
Current CO2 Emissions Level
4.0
Potential CO2 Emissions Level
3.9
CO2 per sq m per Year
44
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
2
Address
43 High Street, Penygroes
Date
5 Aug 2020
Current
Potential
35
89
Property Type
House
Built Form
Mid-Terrace
Constructed
before 1900
+
Certificate History
5 Aug 2020
35
89
Total Floor Area
67 sq m
Current CO2 Emissions Level
8.2
Potential CO2 Emissions Level
0.8
CO2 per sq m per Year
123
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
1
Address
45 High Street, Penygroes
Date
25 Aug 2023
Current
Potential
66
83
Property Type
House
Built Form
Mid-Terrace
Constructed
before 1900
+
Certificate History
25 Aug 2023
66
83
23 May 2010
69
72
Total Floor Area
62 sq m
Current CO2 Emissions Level
2.8
Potential CO2 Emissions Level
1.3
CO2 per sq m per Year
46
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
2
Address
47 High Street, Penygroes
Date
10 Nov 2014
Current
Potential
69
92
Property Type
House
Built Form
Mid-Terrace
Constructed
before 1900
+
Certificate History
10 Nov 2014
69
92
Total Floor Area
51 sq m
Current CO2 Emissions Level
2.0
Potential CO2 Emissions Level
0.2
CO2 per sq m per Year
39
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
1
Address
49 High Street, Penygroes
Date
22 Dec 2011
Current
Potential
67
70
Property Type
House
Built Form
Mid-Terrace
Constructed
before 1900
+
Certificate History
22 Dec 2011
67
70
Total Floor Area
59 sq m
Current CO2 Emissions Level
2.6
Potential CO2 Emissions Level
2.2
CO2 per sq m per Year
43
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
1
Address
51 High Street, Penygroes
Date
22 Dec 2011
Current
Potential
44
51
Property Type
House
Built Form
Mid-Terrace
Constructed
before 1900
+
Certificate History
22 Dec 2011
44
51
Total Floor Area
57 sq m
Current CO2 Emissions Level
7.1
Potential CO2 Emissions Level
6.3
CO2 per sq m per Year
125
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
2
Address
53 High Street, Penygroes
Date
14 Apr 2024
Current
Potential
69
91
Property Type
House
Built Form
Mid-Terrace
Constructed
before 1900
+
Certificate History
14 Apr 2024
69
91
29 Nov 2022
63
90
10 Oct 2012
55
83
Total Floor Area
50 sq m
Current CO2 Emissions Level
2.1
Potential CO2 Emissions Level
0.4
CO2 per sq m per Year
43
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
1
Address
59 High Street, Penygroes
Date
12 Jun 2019
Current
Potential
38
90
Property Type
House
Built Form
Mid-Terrace
Constructed
before 1900
+
Certificate History
12 Jun 2019
38
90
Total Floor Area
70 sq m
Current CO2 Emissions Level
5.0
Potential CO2 Emissions Level
2.3
CO2 per sq m per Year
72
Mains Gas Available
No
Habitable Rooms
4
Number of Extensions
1
Address
6 High Street, Penygroes
Date
22 Sep 2015
Current
Potential
60
84
Property Type
House
Built Form
Mid-Terrace
Constructed
before 1900
+
Certificate History
22 Sep 2015
60
84
Total Floor Area
80 sq m
Current CO2 Emissions Level
4.1
Potential CO2 Emissions Level
1.6
CO2 per sq m per Year
51
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
1
Address
63 High Street, Penygroes
Date
27 Jan 2011
Current
Potential
24
38
Property Type
House
Built Form
Mid-Terrace
Constructed
before 1900
+
Certificate History
27 Jan 2011
24
38
Total Floor Area
91 sq m
Current CO2 Emissions Level
12.0
Potential CO2 Emissions Level
9.0
CO2 per sq m per Year
132
Mains Gas Available
Yes
Habitable Rooms
7
Number of Extensions
1
Address
65 High Street, Penygroes
Date
25 Jan 2010
Current
Potential
68
70
Property Type
House
Built Form
Mid-Terrace
Constructed
before 1900
+
Certificate History
25 Jan 2010
68
70
Total Floor Area
79 sq m
Current CO2 Emissions Level
3.4
Potential CO2 Emissions Level
3.2
CO2 per sq m per Year
43
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
2
Address
7 High Street, Penygroes
Date
8 Mar 2018
Current
Potential
75
86
Property Type
House
Built Form
Mid-Terrace
Constructed
before 1900
+
Certificate History
8 Mar 2018
75
86
11 Jul 2010
62
69
Total Floor Area
86 sq m
Current CO2 Emissions Level
2.3
Potential CO2 Emissions Level
1.1
CO2 per sq m per Year
26
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
1
Address
71 High Street, Penygroes
Date
22 Jan 2019
Current
Potential
62
82
Property Type
House
Built Form
End-Terrace
Constructed
1900-1929
+
Certificate History
22 Jan 2019
62
82
Total Floor Area
93 sq m
Current CO2 Emissions Level
4.3
Potential CO2 Emissions Level
2.0
CO2 per sq m per Year
46
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
1
Address
73 High Street, Penygroes
Date
11 Feb 2022
Current
Potential
65
81
Property Type
House
Built Form
Detached
Constructed
before 1900
+
Certificate History
11 Feb 2022
65
81
15 Jan 2012
52
60
Total Floor Area
133 sq m
Current CO2 Emissions Level
4.9
Potential CO2 Emissions Level
2.5
CO2 per sq m per Year
36
Mains Gas Available
Yes
Habitable Rooms
7
Number of Extensions
3
Address
75 High Street, Penygroes
Date
9 Jul 2024
Current
Potential
42
87
Property Type
House
Built Form
End-Terrace
Constructed
before 1900
+
Certificate History
9 Jul 2024
42
87
Total Floor Area
91 sq m
Current CO2 Emissions Level
6.5
Potential CO2 Emissions Level
1.3
CO2 per sq m per Year
71
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
1
Address
79 High Street, Penygroes
Date
8 Sep 2020
Current
Potential
59
87
Property Type
House
Built Form
Semi-Detached
Constructed
before 1900
+
Certificate History
8 Sep 2020
59
87
13 Nov 2008
50
55
Total Floor Area
81 sq m
Current CO2 Emissions Level
4.3
Potential CO2 Emissions Level
1.2
CO2 per sq m per Year
53
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
1
Address
9 High Street, Penygroes
Date
6 Aug 2018
Current
Potential
56
70
Property Type
House
Built Form
Mid-Terrace
Constructed
before 1900
+
Certificate History
6 Aug 2018
56
70
Total Floor Area
136 sq m
Current CO2 Emissions Level
7.1
Potential CO2 Emissions Level
5.0
CO2 per sq m per Year
53
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
2
Address
Capel Bethel Vestry, High Street
Date
13 Sep 2010
Current
Potential
55
56
Property Type
House
Built Form
Detached
Constructed
before 1900
+
Certificate History
13 Sep 2010
55
56
10 Nov 2008
6
6
Total Floor Area
275 sq m
Current CO2 Emissions Level
13.0
Potential CO2 Emissions Level
13.0
CO2 per sq m per Year
46
Mains Gas Available
Yes
Habitable Rooms
10
Number of Extensions
0
Address
Flat 1, 3-5 High Street
Date
24 Nov 2017
Current
Potential
13
70
Property Type
Flat
Built Form
Mid-Terrace
Constructed
before 1900
+
Certificate History
24 Nov 2017
13
70
8 Oct 2012
14
70
16 Feb 2009
14
27
Total Floor Area
94 sq m
Current CO2 Emissions Level
11.0
Potential CO2 Emissions Level
3.8
CO2 per sq m per Year
118
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
1
Address
Monfa, High Street
Date
2 Feb 2010
Current
Potential
51
65
Property Type
House
Built Form
Mid-Terrace
Constructed
before 1900
+
Certificate History
2 Feb 2010
51
65
Total Floor Area
76 sq m
Current CO2 Emissions Level
5.4
Potential CO2 Emissions Level
3.7
CO2 per sq m per Year
71
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
Montrose, High Street
Date
16 Aug 2022
Current
Potential
59
82
Property Type
House
Built Form
End-Terrace
Constructed
before 1900
+
Certificate History
16 Aug 2022
59
82
9 Sep 2019
47
71
Total Floor Area
99 sq m
Current CO2 Emissions Level
4.4
Potential CO2 Emissions Level
1.8
CO2 per sq m per Year
45
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
Moorings, High Street
Date
27 Feb 2013
Current
Potential
57
84
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
+
Certificate History
27 Feb 2013
57
84
Total Floor Area
117 sq m
Current CO2 Emissions Level
6.2
Potential CO2 Emissions Level
2.2
CO2 per sq m per Year
53
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
Spar Stores, 3-5 High Street
Date
11 Dec 2008
Current
Potential
3
26
Property Type
Flat
Built Form
Mid-Terrace
Constructed
before 1900
+
Certificate History
11 Dec 2008
3
26
Total Floor Area
92 sq m
Current CO2 Emissions Level
12.0
Potential CO2 Emissions Level
7.2
CO2 per sq m per Year
127
Mains Gas Available
Yes
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.

Contains public sector information licensed under the Open Government Licence v3.0.
Contains Royal Mail data © Royal Mail copyright and Database right 2025.