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PROPERTY ENERGY EFFICIENCY CERTIFICATE DETAILS
Cwm-y-Glo, CAERNARFON, LL55 4DY

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 4DY 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 Cwm-y-Glo, CAERNARFON, LL55 4DY
Period Covered: 2008 - 31 January 2025

Address
Inspection Date
Current
Potential
Property Type
Built Form
Constructed
Address
1 Bryn Difyr, Cwm-y-Glo
Date
29 Apr 2010
Current
Potential
2
34
Property Type
House
Built Form
Semi-Detached
Constructed
before 1900
+
Certificate History
29 Apr 2010
2
34
Total Floor Area
57 sq m
Current CO2 Emissions Level
6.7
Potential CO2 Emissions Level
7.0
CO2 per sq m per Year
119
Mains Gas Available
No
Habitable Rooms
4
Number of Extensions
0
Address
1 Uwchlawr Ffynnon, Cwm-y-Glo
Date
20 Nov 2019
Current
Potential
41
104
Property Type
House
Built Form
End-Terrace
Constructed
before 1900
+
Certificate History
20 Nov 2019
41
104
Total Floor Area
56 sq m
Current CO2 Emissions Level
2.6
Potential CO2 Emissions Level
-1.2
CO2 per sq m per Year
45
Mains Gas Available
No
Habitable Rooms
4
Number of Extensions
1
Address
2 Bryn Difyr, Cwm-Y-Glo
Date
4 Nov 2022
Current
Potential
40
84
Property Type
House
Built Form
Semi-Detached
Constructed
before 1900
+
Certificate History
4 Nov 2022
40
84
19 Mar 2010
16
16
Total Floor Area
55 sq m
Current CO2 Emissions Level
5.9
Potential CO2 Emissions Level
2.0
CO2 per sq m per Year
108
Mains Gas Available
No
Habitable Rooms
4
Number of Extensions
0
Address
2 Uwchlawr Ffynnon, Cwm-Y-Glo
Date
6 Sep 2024
Current
Potential
43
108
Property Type
House
Built Form
Mid-Terrace
Constructed
before 1900
+
Certificate History
6 Sep 2024
43
108
27 Jun 2013
37
78
Total Floor Area
54 sq m
Current CO2 Emissions Level
5.3
Potential CO2 Emissions Level
0.4
CO2 per sq m per Year
98
Mains Gas Available
No
Habitable Rooms
4
Number of Extensions
0
Address
3 Y Bwthyn, Cwm-y-Glo
Date
19 Jul 2010
Current
Potential
27
45
Property Type
House
Built Form
Mid-Terrace
Constructed
before 1900
+
Certificate History
19 Jul 2010
27
45
Total Floor Area
43 sq m
Current CO2 Emissions Level
5.9
Potential CO2 Emissions Level
4.9
CO2 per sq m per Year
138
Mains Gas Available
No
Habitable Rooms
3
Number of Extensions
1
Address
Elidir View, Cwm-y-Glo
Date
21 Feb 2015
Current
Potential
20
100
Property Type
House
Built Form
Semi-Detached
Constructed
before 1900
+
Certificate History
21 Feb 2015
20
100
Total Floor Area
111 sq m
Current CO2 Emissions Level
18.0
Potential CO2 Emissions Level
3.2
CO2 per sq m per Year
157
Mains Gas Available
No
Habitable Rooms
8
Number of Extensions
0
Address
Gwelfor, Cwm-y-Glo
Date
15 Oct 2008
Current
Potential
31
36
Property Type
House
Built Form
Semi-Detached
Constructed
before 1900
+
Certificate History
15 Oct 2008
31
36
Total Floor Area
110 sq m
Current CO2 Emissions Level
5.2
Potential CO2 Emissions Level
4.6
CO2 per sq m per Year
47
Mains Gas Available
No
Habitable Rooms
5
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.