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PROPERTY ENERGY EFFICIENCY CERTIFICATE DETAILS
Trefor, CAERNARFON, LL54 5LU

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 LL54 5LU 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 Trefor, CAERNARFON, LL54 5LU
Period Covered: 2008 - 31 January 2025

Address
Inspection Date
Current
Potential
Property Type
Built Form
Constructed
Address
1 Hen Ysgol, Trefor
Date
16 Aug 2010
Current
Potential
56
61
Property Type
Flat
Built Form
Detached
Constructed
1983-1990
+
Certificate History
16 Aug 2010
56
61
Total Floor Area
50 sq m
Current CO2 Emissions Level
3.9
Potential CO2 Emissions Level
3.6
CO2 per sq m per Year
78
Mains Gas Available
No
Habitable Rooms
3
Number of Extensions
1
Address
2 Hen Ysgol, Trefor
Date
3 Nov 2009
Current
Potential
68
71
Property Type
Flat
Built Form
Detached
Constructed
N/A
+
Certificate History
3 Nov 2009
68
71
Total Floor Area
35 sq m
Current CO2 Emissions Level
2.5
Potential CO2 Emissions Level
2.3
CO2 per sq m per Year
70
Mains Gas Available
No
Habitable Rooms
2
Number of Extensions
0
Address
3 Hen Ysgol, Trefor
Date
25 Mar 2010
Current
Potential
58
63
Property Type
Bungalow
Built Form
End-Terrace
Constructed
1983-1990
+
Certificate History
25 Mar 2010
58
63
Total Floor Area
35 sq m
Current CO2 Emissions Level
3.1
Potential CO2 Emissions Level
2.9
CO2 per sq m per Year
91
Mains Gas Available
No
Habitable Rooms
2
Number of Extensions
0
Address
4 Hen Ysgol, Trefor
Date
27 Apr 2023
Current
Potential
65
91
Property Type
Bungalow
Built Form
Mid-Terrace
Constructed
1983-1990
+
Certificate History
27 Apr 2023
65
91
16 Aug 2010
62
66
Total Floor Area
33 sq m
Current CO2 Emissions Level
2.8
Potential CO2 Emissions Level
1.2
CO2 per sq m per Year
84
Mains Gas Available
No
Habitable Rooms
2
Number of Extensions
0
Address
5 Hen Ysgol, Trefor
Date
19 Oct 2023
Current
Potential
65
92
Property Type
Bungalow
Built Form
Mid-Terrace
Constructed
1983-1990
+
Certificate History
19 Oct 2023
65
92
12 Jan 2010
58
63
Total Floor Area
42 sq m
Current CO2 Emissions Level
3.5
Potential CO2 Emissions Level
1.4
CO2 per sq m per Year
82
Mains Gas Available
No
Habitable Rooms
2
Number of Extensions
0
Address
6 Hen Ysgol, Trefor
Date
18 Mar 2011
Current
Potential
61
67
Property Type
Flat
Built Form
Semi-Detached
Constructed
1983-1990
+
Certificate History
18 Mar 2011
61
67
Total Floor Area
42 sq m
Current CO2 Emissions Level
3.1
Potential CO2 Emissions Level
2.9
CO2 per sq m per Year
74
Mains Gas Available
No
Habitable Rooms
2
Number of Extensions
1
Address
7 Hen Ysgol, Trefor
Date
16 Aug 2010
Current
Potential
74
76
Property Type
Flat
Built Form
Detached
Constructed
1983-1990
+
Certificate History
16 Aug 2010
74
76
Total Floor Area
37 sq m
Current CO2 Emissions Level
2.1
Potential CO2 Emissions Level
2.0
CO2 per sq m per Year
56
Mains Gas Available
No
Habitable Rooms
2
Number of Extensions
0
Address
8 Hen Ysgol, Trefor
Date
16 Aug 2010
Current
Potential
56
61
Property Type
Bungalow
Built Form
Detached
Constructed
1983-1990
+
Certificate History
16 Aug 2010
56
61
Total Floor Area
30 sq m
Current CO2 Emissions Level
3.1
Potential CO2 Emissions Level
2.9
CO2 per sq m per Year
104
Mains Gas Available
No
Habitable Rooms
2
Number of Extensions
0
Address
Cae Croppa, Trefor
Date
20 Sep 2022
Current
Potential
55
83
Property Type
House
Built Form
Detached
Constructed
before 1900
+
Certificate History
20 Sep 2022
55
83
8 May 2016
8
92
Total Floor Area
62 sq m
Current CO2 Emissions Level
4.2
Potential CO2 Emissions Level
1.8
CO2 per sq m per Year
68
Mains Gas Available
No
Habitable Rooms
4
Number of Extensions
0
Address
Clydfan, Trefor
Date
2 Feb 2017
Current
Potential
22
81
Property Type
Bungalow
Built Form
Detached
Constructed
1900-1929
+
Certificate History
2 Feb 2017
22
81
Total Floor Area
137 sq m
Current CO2 Emissions Level
13.0
Potential CO2 Emissions Level
3.0
CO2 per sq m per Year
98
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
1
Address
Fron Dirion, Trefor
Date
10 Dec 2008
Current
Potential
38
38
Property Type
House
Built Form
Semi-Detached
Constructed
1900-1929
+
Certificate History
10 Dec 2008
38
38
Total Floor Area
89 sq m
Current CO2 Emissions Level
9.8
Potential CO2 Emissions Level
9.8
CO2 per sq m per Year
111
Mains Gas Available
No
Habitable Rooms
6
Number of Extensions
1
Address
Gwyndre, Trefor
Date
4 Apr 2023
Current
Potential
89
91
Property Type
House
Built Form
Detached
Constructed
2003-2006
+
Certificate History
4 Apr 2023
89
91
4 Apr 2023
89
91
25 Jan 2022
69
78
26 Oct 2016
69
79
Total Floor Area
156 sq m
Current CO2 Emissions Level
1.3
Potential CO2 Emissions Level
1.1
CO2 per sq m per Year
8
Mains Gas Available
No
Habitable Rooms
5
Number of Extensions
0
Address
Haulfryn, Trefor
Date
7 Mar 2017
Current
Potential
50
110
Property Type
Bungalow
Built Form
Detached
Constructed
1930-1949
+
Certificate History
7 Mar 2017
50
110
Total Floor Area
59 sq m
Current CO2 Emissions Level
4.5
Potential CO2 Emissions Level
-0.2
CO2 per sq m per Year
76
Mains Gas Available
No
Habitable Rooms
3
Number of Extensions
0
Address
Morwel, Trefor
Date
7 Oct 2019
Current
Potential
43
79
Property Type
House
Built Form
Detached
Constructed
1900-1929
+
Certificate History
7 Oct 2019
43
79
Total Floor Area
101 sq m
Current CO2 Emissions Level
7.5
Potential CO2 Emissions Level
3.0
CO2 per sq m per Year
74
Mains Gas Available
No
Habitable Rooms
6
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.