PROPERTY ENERGY EFFICIENCY CERTIFICATE DETAILS
Pentre Helen, CAERNARFON, LL55 3LN
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 Pentre Helen, LL55 3LN 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 Pentre Helen, CAERNARFON, LL55 3LN
Period Covered:
2008 - 31 January 2025
Address
Inspection Date
Current
Potential
Property Type
Built Form
Constructed
Address
1 Pentre Helen, Deiniolen
Date
15 Apr 2015
Current
Potential
12
75
Property Type
House
Built Form
Semi-Detached
Constructed
1930-1949
Certificate History
15 Apr 2015
12
75
Total Floor Area
101 sq m
Current CO2 Emissions Level
8.4
Potential CO2 Emissions Level
1.8
CO2 per sq m per Year
82
Mains Gas Available
No
Habitable Rooms
7
Number of Extensions
0
Address
10 Pentre Helen, Deiniolen
Date
2 Aug 2015
Current
Potential
37
72
Property Type
House
Built Form
End-Terrace
Constructed
1930-1949
Certificate History
2 Aug 2015
37
72
Total Floor Area
70 sq m
Current CO2 Emissions Level
4.1
Potential CO2 Emissions Level
1.6
CO2 per sq m per Year
59
Mains Gas Available
No
Habitable Rooms
5
Number of Extensions
0
Address
13 Pentre Helen, Deiniolen
Date
14 Aug 2014
Current
Potential
40
65
Property Type
House
Built Form
Mid-Terrace
Constructed
1930-1949
Certificate History
14 Aug 2014
40
65
16 Jul 2014
64
83
Total Floor Area
70 sq m
Current CO2 Emissions Level
3.2
Potential CO2 Emissions Level
1.4
CO2 per sq m per Year
46
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
14 Pentre Helen, Deiniolen
Date
3 Mar 2015
Current
Potential
41
75
Property Type
House
Built Form
End-Terrace
Constructed
1930-1949
Certificate History
3 Mar 2015
41
75
Total Floor Area
78 sq m
Current CO2 Emissions Level
4.0
Potential CO2 Emissions Level
1.4
CO2 per sq m per Year
51
Mains Gas Available
No
Habitable Rooms
5
Number of Extensions
0
Address
15 Pentre Helen, Deiniolen
Date
19 May 2015
Current
Potential
51
71
Property Type
House
Built Form
End-Terrace
Constructed
1930-1949
Certificate History
19 May 2015
51
71
Total Floor Area
70 sq m
Current CO2 Emissions Level
3.1
Potential CO2 Emissions Level
1.6
CO2 per sq m per Year
44
Mains Gas Available
No
Habitable Rooms
5
Number of Extensions
0
Address
16 Pentre Helen, Deiniolen
Date
4 Oct 2018
Current
Potential
54
78
Property Type
House
Built Form
Mid-Terrace
Constructed
1950-1966
Certificate History
4 Oct 2018
54
78
Total Floor Area
74 sq m
Current CO2 Emissions Level
2.9
Potential CO2 Emissions Level
1.2
CO2 per sq m per Year
39
Mains Gas Available
No
Habitable Rooms
5
Number of Extensions
0
Address
17 Pentre Helen, Deiniolen
Date
14 Aug 2014
Current
Potential
44
65
Property Type
House
Built Form
Mid-Terrace
Constructed
1930-1949
Certificate History
14 Aug 2014
44
65
16 Jul 2014
67
83
Total Floor Area
70 sq m
Current CO2 Emissions Level
3.0
Potential CO2 Emissions Level
1.4
CO2 per sq m per Year
42
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
19 Pentre Helen, Deiniolen
Date
14 Aug 2014
Current
Potential
42
63
Property Type
House
Built Form
End-Terrace
Constructed
1930-1949
Certificate History
14 Aug 2014
42
63
16 Jul 2014
66
82
Total Floor Area
70 sq m
Current CO2 Emissions Level
3.1
Potential CO2 Emissions Level
1.6
CO2 per sq m per Year
44
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
21 Pentre Helen, Deiniolen
Date
5 Sep 2018
Current
Potential
50
74
Property Type
House
Built Form
Mid-Terrace
Constructed
1930-1949
Certificate History
5 Sep 2018
50
74
Total Floor Area
77 sq m
Current CO2 Emissions Level
3.4
Potential CO2 Emissions Level
1.6
CO2 per sq m per Year
44
Mains Gas Available
No
Habitable Rooms
5
Number of Extensions
1
Address
23 Pentre Helen, Deiniolen
Date
12 Mar 2018
Current
Potential
45
73
Property Type
House
Built Form
Semi-Detached
Constructed
1950-1966
Certificate History
12 Mar 2018
45
73
13 Mar 2015
34
78
27 Feb 2015
33
76
Total Floor Area
71 sq m
Current CO2 Emissions Level
3.1
Potential CO2 Emissions Level
1.2
CO2 per sq m per Year
43
Mains Gas Available
No
Habitable Rooms
5
Number of Extensions
0
Address
24 Pentre Helen, Deiniolen
Date
22 Jun 2015
Current
Potential
52
72
Property Type
House
Built Form
Semi-Detached
Constructed
1900-1929
Certificate History
22 Jun 2015
52
72
Total Floor Area
69 sq m
Current CO2 Emissions Level
3.0
Potential CO2 Emissions Level
1.5
CO2 per sq m per Year
43
Mains Gas Available
No
Habitable Rooms
5
Number of Extensions
0
Address
25 Pentre Helen, Deiniolen
Date
26 Aug 2021
Current
Potential
39
63
Property Type
House
Built Form
End-Terrace
Constructed
1930-1949
Certificate History
26 Aug 2021
39
63
16 Jul 2014
42
63
Total Floor Area
71 sq m
Current CO2 Emissions Level
3.2
Potential CO2 Emissions Level
1.7
CO2 per sq m per Year
46
Mains Gas Available
No
Habitable Rooms
5
Number of Extensions
3
Address
27 Pentre Helen, Deiniolen
Date
14 Aug 2014
Current
Potential
44
65
Property Type
House
Built Form
Mid-Terrace
Constructed
1930-1949
Certificate History
14 Aug 2014
44
65
16 Jul 2014
66
83
Total Floor Area
70 sq m
Current CO2 Emissions Level
3.0
Potential CO2 Emissions Level
1.4
CO2 per sq m per Year
44
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
28 Pentre Helen, Deiniolen
Date
5 Mar 2015
Current
Potential
30
53
Property Type
House
Built Form
Semi-Detached
Constructed
1930-1949
Certificate History
5 Mar 2015
30
53
Total Floor Area
69 sq m
Current CO2 Emissions Level
5.6
Potential CO2 Emissions Level
3.6
CO2 per sq m per Year
82
Mains Gas Available
No
Habitable Rooms
5
Number of Extensions
0
Address
29 Pentre Helen, Deiniolen
Date
27 Sep 2024
Current
Potential
54
73
Property Type
House
Built Form
Semi-Detached
Constructed
1950-1966
Certificate History
27 Sep 2024
54
73
Total Floor Area
71 sq m
Current CO2 Emissions Level
2.8
Potential CO2 Emissions Level
1.4
CO2 per sq m per Year
40
Mains Gas Available
No
Habitable Rooms
5
Number of Extensions
0
Address
3 Pentre Helen, Deiniolen
Date
11 Mar 2015
Current
Potential
28
51
Property Type
House
Built Form
Semi-Detached
Constructed
1930-1949
Certificate History
11 Mar 2015
28
51
Total Floor Area
99 sq m
Current CO2 Emissions Level
5.8
Potential CO2 Emissions Level
3.7
CO2 per sq m per Year
59
Mains Gas Available
No
Habitable Rooms
6
Number of Extensions
1
Address
31 Pentre Helen, Deiniolen
Date
9 Sep 2021
Current
Potential
39
64
Property Type
House
Built Form
Semi-Detached
Constructed
1930-1949
Certificate History
9 Sep 2021
39
64
5 Oct 2016
28
62
Total Floor Area
70 sq m
Current CO2 Emissions Level
3.3
Potential CO2 Emissions Level
1.6
CO2 per sq m per Year
47
Mains Gas Available
No
Habitable Rooms
5
Number of Extensions
2
Address
34 Pentre Helen, Deiniolen
Date
27 Feb 2015
Current
Potential
36
82
Property Type
House
Built Form
Semi-Detached
Constructed
1930-1949
Certificate History
27 Feb 2015
36
82
15 Jul 2010
47
68
Total Floor Area
77 sq m
Current CO2 Emissions Level
7.1
Potential CO2 Emissions Level
2.3
CO2 per sq m per Year
92
Mains Gas Available
No
Habitable Rooms
5
Number of Extensions
1
Address
35 Pentre Helen, Deiniolen
Date
21 May 2015
Current
Potential
43
75
Property Type
House
Built Form
End-Terrace
Constructed
1930-1949
Certificate History
21 May 2015
43
75
12 Dec 2013
54
76
Total Floor Area
73 sq m
Current CO2 Emissions Level
4.1
Potential CO2 Emissions Level
1.7
CO2 per sq m per Year
56
Mains Gas Available
No
Habitable Rooms
4
Number of Extensions
0
Address
36 Pentre Helen, Deiniolen
Date
14 Aug 2014
Current
Potential
44
65
Property Type
House
Built Form
Mid-Terrace
Constructed
1930-1949
Certificate History
14 Aug 2014
44
65
16 Jul 2014
66
83
Total Floor Area
70 sq m
Current CO2 Emissions Level
3.0
Potential CO2 Emissions Level
1.4
CO2 per sq m per Year
43
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
37 Pentre Helen, Deiniolen
Date
14 Jun 2015
Current
Potential
55
75
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
14 Jun 2015
55
75
Total Floor Area
74 sq m
Current CO2 Emissions Level
2.9
Potential CO2 Emissions Level
1.4
CO2 per sq m per Year
39
Mains Gas Available
No
Habitable Rooms
5
Number of Extensions
0
Address
4 Pentre Helen, Deiniolen
Date
27 Apr 2015
Current
Potential
44
72
Property Type
House
Built Form
Semi-Detached
Constructed
1930-1949
Certificate History
27 Apr 2015
44
72
Total Floor Area
106 sq m
Current CO2 Emissions Level
4.7
Potential CO2 Emissions Level
2.2
CO2 per sq m per Year
44
Mains Gas Available
No
Habitable Rooms
6
Number of Extensions
0
Address
40 Pentre Helen, Deiniolen
Date
14 Feb 2024
Current
Potential
53
72
Property Type
House
Built Form
Semi-Detached
Constructed
1930-1949
Certificate History
14 Feb 2024
53
72
17 Feb 2014
62
76
Total Floor Area
70 sq m
Current CO2 Emissions Level
3.0
Potential CO2 Emissions Level
1.5
CO2 per sq m per Year
42
Mains Gas Available
No
Habitable Rooms
5
Number of Extensions
2
Address
41 Pentre Helen, Deiniolen
Date
26 Apr 2015
Current
Potential
50
70
Property Type
House
Built Form
Semi-Detached
Constructed
1930-1949
Certificate History
26 Apr 2015
50
70
23 Nov 2009
70
76
Total Floor Area
95 sq m
Current CO2 Emissions Level
3.8
Potential CO2 Emissions Level
2.1
CO2 per sq m per Year
40
Mains Gas Available
No
Habitable Rooms
6
Number of Extensions
0
Address
42 Pentre Helen, Deiniolen
Date
16 Jul 2014
Current
Potential
41
63
Property Type
House
Built Form
Semi-Detached
Constructed
1930-1949
Certificate History
16 Jul 2014
41
63
4 Mar 2009
42
43
Total Floor Area
70 sq m
Current CO2 Emissions Level
3.2
Potential CO2 Emissions Level
1.6
CO2 per sq m per Year
46
Mains Gas Available
No
Habitable Rooms
5
Number of Extensions
0
Address
44 Pentre Helen, Deiniolen
Date
23 Nov 2015
Current
Potential
78
113
Property Type
House
Built Form
Semi-Detached
Constructed
INVALID!
Certificate History
23 Nov 2015
78
113
Total Floor Area
79 sq m
Current CO2 Emissions Level
2.1
Potential CO2 Emissions Level
-1.0
CO2 per sq m per Year
27
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
46 Pentre Helen, Deiniolen
Date
13 Oct 2021
Current
Potential
25
87
Property Type
House
Built Form
Semi-Detached
Constructed
before 1900
Certificate History
13 Oct 2021
25
87
12 Mar 2015
13
79
3 Mar 2015
1
76
Total Floor Area
81 sq m
Current CO2 Emissions Level
7.1
Potential CO2 Emissions Level
1.5
CO2 per sq m per Year
88
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
47 Pentre Helen, Deiniolen
Date
14 Aug 2014
Current
Potential
43
65
Property Type
House
Built Form
Mid-Terrace
Constructed
1930-1949
Certificate History
14 Aug 2014
43
65
16 Jul 2014
65
83
Total Floor Area
70 sq m
Current CO2 Emissions Level
3.1
Potential CO2 Emissions Level
1.4
CO2 per sq m per Year
44
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
49 Pentre Helen, Deiniolen
Date
14 Aug 2014
Current
Potential
42
63
Property Type
House
Built Form
Semi-Detached
Constructed
1930-1949
Certificate History
14 Aug 2014
42
63
16 Jul 2014
65
82
Total Floor Area
70 sq m
Current CO2 Emissions Level
3.1
Potential CO2 Emissions Level
1.6
CO2 per sq m per Year
44
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
5 Pentre Helen, Deiniolen
Date
10 May 2015
Current
Potential
40
70
Property Type
House
Built Form
Semi-Detached
Constructed
1930-1949
Certificate History
10 May 2015
40
70
Total Floor Area
86 sq m
Current CO2 Emissions Level
5.2
Potential CO2 Emissions Level
2.7
CO2 per sq m per Year
60
Mains Gas Available
No
Habitable Rooms
6
Number of Extensions
1
Address
50 Pentre Helen, Deiniolen
Date
14 Aug 2014
Current
Potential
42
63
Property Type
House
Built Form
End-Terrace
Constructed
1930-1949
Certificate History
14 Aug 2014
42
63
16 Jul 2014
65
82
Total Floor Area
70 sq m
Current CO2 Emissions Level
3.1
Potential CO2 Emissions Level
1.6
CO2 per sq m per Year
45
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
51 Pentre Helen, Deiniolen
Date
13 Jan 2025
Current
Potential
61
82
Property Type
House
Built Form
Semi-Detached
Constructed
1930-1949
Certificate History
13 Jan 2025
61
82
Total Floor Area
70 sq m
Current CO2 Emissions Level
3.7
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
6 Pentre Helen, Deiniolen
Date
10 May 2015
Current
Potential
29
83
Property Type
House
Built Form
Semi-Detached
Constructed
1930-1949
Certificate History
10 May 2015
29
83
Total Floor Area
70 sq m
Current CO2 Emissions Level
9.1
Potential CO2 Emissions Level
2.7
CO2 per sq m per Year
130
Mains Gas Available
No
Habitable Rooms
5
Number of Extensions
0
Address
7 Pentre Helen, Deiniolen
Date
14 Aug 2014
Current
Potential
41
63
Property Type
House
Built Form
End-Terrace
Constructed
1930-1949
Certificate History
14 Aug 2014
41
63
16 Jul 2014
65
82
Total Floor Area
70 sq m
Current CO2 Emissions Level
3.2
Potential CO2 Emissions Level
1.6
CO2 per sq m per Year
45
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
9 Pentre Helen, Deiniolen
Date
14 Aug 2014
Current
Potential
39
65
Property Type
House
Built Form
Mid-Terrace
Constructed
1930-1949
Certificate History
14 Aug 2014
39
65
16 Jul 2014
63
83
Total Floor Area
70 sq m
Current CO2 Emissions Level
3.3
Potential CO2 Emissions Level
1.4
CO2 per sq m per Year
47
Mains Gas Available
Yes
Habitable Rooms
5
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.