PROPERTY ENERGY EFFICIENCY CERTIFICATE DETAILS
Deiniolen, CAERNARFON, LL55 3HT

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 LL55 3HT 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 Deiniolen, CAERNARFON, LL55 3HT
Period Covered: 2008 - 31 October 2024

Address
Inspection Date
Current
Potential
Property Type
Built Form
Constructed
Address
1 Marian Terrace, Deiniolen
Date
17 Jul 2013
Current
Potential
47
79
Property Type
House
Built Form
End-Terrace
Constructed
before 1900
+
Certificate History
17 Jul 2013
47
79
14 Oct 2009
4
28
Total Floor Area
63 sq m
Current CO2 Emissions Level
3.0
Potential CO2 Emissions Level
0.9
CO2 per sq m per Year
48
Mains Gas Available
No
Habitable Rooms
3
Number of Extensions
1
Address
10 Marian Terrace, Deiniolen
Date
30 Jan 2015
Current
Potential
5
46
Property Type
House
Built Form
Mid-Terrace
Constructed
before 1900
+
Certificate History
30 Jan 2015
5
46
Total Floor Area
80 sq m
Current CO2 Emissions Level
11.0
Potential CO2 Emissions Level
5.7
CO2 per sq m per Year
142
Mains Gas Available
No
Habitable Rooms
6
Number of Extensions
1
Address
11 Marian Terrace, Deiniolen
Date
3 Apr 2017
Current
Potential
31
71
Property Type
House
Built Form
Mid-Terrace
Constructed
before 1900
+
Certificate History
3 Apr 2017
31
71
14 Mar 2014
1
56
Total Floor Area
72 sq m
Current CO2 Emissions Level
5.4
Potential CO2 Emissions Level
2.3
CO2 per sq m per Year
76
Mains Gas Available
No
Habitable Rooms
3
Number of Extensions
2
Address
12 Marian Terrace, Deiniolen
Date
26 Nov 2014
Current
Potential
58
88
Property Type
House
Built Form
Mid-Terrace
Constructed
before 1900
+
Certificate History
26 Nov 2014
58
88
Total Floor Area
81 sq m
Current CO2 Emissions Level
5.4
Potential CO2 Emissions Level
2.2
CO2 per sq m per Year
66
Mains Gas Available
No
Habitable Rooms
4
Number of Extensions
1
Address
13 Marian Terrace, Deiniolen
Date
27 Nov 2014
Current
Potential
61
86
Property Type
House
Built Form
Mid-Terrace
Constructed
before 1900
+
Certificate History
27 Nov 2014
61
86
6 Jul 2009
61
67
Total Floor Area
83 sq m
Current CO2 Emissions Level
4.4
Potential CO2 Emissions Level
1.8
CO2 per sq m per Year
53
Mains Gas Available
No
Habitable Rooms
5
Number of Extensions
1
Address
14 Marian Terrace, Deiniolen
Date
1 Nov 2014
Current
Potential
32
70
Property Type
House
Built Form
End-Terrace
Constructed
1900-1929
+
Certificate History
1 Nov 2014
32
70
22 Apr 2013
49
78
1 Mar 2011
11
17
Total Floor Area
68 sq m
Current CO2 Emissions Level
4.6
Potential CO2 Emissions Level
1.7
CO2 per sq m per Year
67
Mains Gas Available
No
Habitable Rooms
4
Number of Extensions
1
Address
2 Marian Terrace, Deiniolen
Date
23 Jan 2013
Current
Potential
40
75
Property Type
House
Built Form
Mid-Terrace
Constructed
before 1900
+
Certificate History
23 Jan 2013
40
75
Total Floor Area
59 sq m
Current CO2 Emissions Level
2.7
Potential CO2 Emissions Level
0.8
CO2 per sq m per Year
46
Mains Gas Available
No
Habitable Rooms
3
Number of Extensions
1
Address
3 Marian Terrace, Deiniolen
Date
6 Feb 2019
Current
Potential
65
84
Property Type
House
Built Form
Mid-Terrace
Constructed
before 1900
+
Certificate History
6 Feb 2019
65
84
15 Oct 2014
42
77
Total Floor Area
64 sq m
Current CO2 Emissions Level
5.7
Potential CO2 Emissions Level
-0.3
CO2 per sq m per Year
90
Mains Gas Available
No
Habitable Rooms
4
Number of Extensions
1
Address
4 Marian Terrace, Deiniolen
Date
18 Nov 2014
Current
Potential
57
92
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
+
Certificate History
18 Nov 2014
57
92
Total Floor Area
40 sq m
Current CO2 Emissions Level
3.3
Potential CO2 Emissions Level
0.9
CO2 per sq m per Year
84
Mains Gas Available
No
Habitable Rooms
3
Number of Extensions
0
Address
5 Marian Terrace, Deiniolen
Date
17 Oct 2024
Current
Potential
39
71
Property Type
House
Built Form
Mid-Terrace
Constructed
before 1900
+
Certificate History
17 Oct 2024
39
71
11 Nov 2014
49
72
23 May 2011
37
53
Total Floor Area
70 sq m
Current CO2 Emissions Level
3.0
Potential CO2 Emissions Level
1.1
CO2 per sq m per Year
43
Mains Gas Available
No
Habitable Rooms
4
Number of Extensions
2
Address
6 Marian Terrace, Deiniolen
Date
15 Oct 2014
Current
Potential
24
65
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
+
Certificate History
15 Oct 2014
24
65
Total Floor Area
63 sq m
Current CO2 Emissions Level
6.6
Potential CO2 Emissions Level
2.8
CO2 per sq m per Year
106
Mains Gas Available
No
Habitable Rooms
4
Number of Extensions
1
Address
8 Marian Terrace, Deiniolen
Date
3 Feb 2015
Current
Potential
58
87
Property Type
House
Built Form
Mid-Terrace
Constructed
before 1900
+
Certificate History
3 Feb 2015
58
87
Total Floor Area
71 sq m
Current CO2 Emissions Level
8.3
Potential CO2 Emissions Level
4.2
CO2 per sq m per Year
116
Mains Gas Available
No
Habitable Rooms
4
Number of Extensions
0
Address
9 Marian Terrace, Deiniolen
Date
5 Sep 2024
Current
Potential
62
83
Property Type
House
Built Form
Mid-Terrace
Constructed
before 1900
+
Certificate History
5 Sep 2024
62
83
27 Nov 2014
27
76
11 Sep 2009
28
29
Total Floor Area
70 sq m
Current CO2 Emissions Level
2.3
Potential CO2 Emissions Level
0.8
CO2 per sq m per Year
33
Mains Gas Available
No
Habitable Rooms
5
Number of Extensions
1
Address
Marian House, Deiniolen
Date
12 Nov 2015
Current
Potential
68
82
Property Type
House
Built Form
Detached
Constructed
1900-1929
+
Certificate History
12 Nov 2015
68
82
18 Nov 2014
29
65
Total Floor Area
157 sq m
Current CO2 Emissions Level
6.2
Potential CO2 Emissions Level
3.9
CO2 per sq m per Year
39
Mains Gas Available
No
Habitable Rooms
8
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.