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PROPERTY ENERGY EFFICIENCY CERTIFICATE DETAILS
Gwalchmai, HOLYHEAD, LL65 4RS

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 LL65 4RS 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 Gwalchmai, HOLYHEAD, LL65 4RS
Period Covered: 2008 - 31 January 2025

Address
Inspection Date
Current
Potential
Property Type
Built Form
Constructed
Address
Bryn Celyn, Gwalchmai
Date
3 Aug 2017
Current
Potential
42
74
Property Type
House
Built Form
Detached
Constructed
before 1900
+
Certificate History
3 Aug 2017
42
74
Total Floor Area
134 sq m
Current CO2 Emissions Level
9.2
Potential CO2 Emissions Level
4.6
CO2 per sq m per Year
69
Mains Gas Available
No
Habitable Rooms
6
Number of Extensions
1
Address
Glyn Alan, Gwalchmai
Date
25 Oct 2018
Current
Potential
27
48
Property Type
Bungalow
Built Form
Detached
Constructed
1950-1966
+
Certificate History
25 Oct 2018
27
48
Total Floor Area
104 sq m
Current CO2 Emissions Level
4.6
Potential CO2 Emissions Level
2.6
CO2 per sq m per Year
44
Mains Gas Available
No
Habitable Rooms
6
Number of Extensions
1
Address
Llys y Gwynt, Gwalchmai
Date
3 Sep 2014
Current
Potential
36
75
Property Type
Bungalow
Built Form
Detached
Constructed
1976-1982
+
Certificate History
3 Sep 2014
36
75
Total Floor Area
73 sq m
Current CO2 Emissions Level
4.4
Potential CO2 Emissions Level
1.4
CO2 per sq m per Year
60
Mains Gas Available
No
Habitable Rooms
7
Number of Extensions
0
Address
Mon Arfon, Gwalchmai
Date
14 Oct 2008
Current
Potential
41
56
Property Type
Bungalow
Built Form
Detached
Constructed
1967-1975
+
Certificate History
14 Oct 2008
41
56
Total Floor Area
134 sq m
Current CO2 Emissions Level
9.9
Potential CO2 Emissions Level
7.3
CO2 per sq m per Year
81
Mains Gas Available
No
Habitable Rooms
5
Number of Extensions
1
Address
Plas Elfan, Gwalchmai
Date
8 Apr 2015
Current
Potential
61
70
Property Type
House
Built Form
Detached
Constructed
2007 onwards
+
Certificate History
8 Apr 2015
61
70
Total Floor Area
180 sq m
Current CO2 Emissions Level
7.3
Potential CO2 Emissions Level
5.9
CO2 per sq m per Year
41
Mains Gas Available
No
Habitable Rooms
9
Number of Extensions
4
Address
Waen Y Garreg, Gwalchmai
Date
10 Oct 2021
Current
Potential
45
75
Property Type
House
Built Form
Detached
Constructed
1967-1975
+
Certificate History
10 Oct 2021
45
75
Total Floor Area
139 sq m
Current CO2 Emissions Level
8.3
Potential CO2 Emissions Level
4.1
CO2 per sq m per Year
60
Mains Gas Available
No
Habitable Rooms
6
Number of Extensions
1
Address
Y Glyn, Gwalchmai
Date
8 Apr 2025
Current
Potential
58
78
Property Type
Bungalow
Built Form
Detached
Constructed
1967-1975
+
Certificate History
8 Apr 2025
58
78
Total Floor Area
88 sq m
Current CO2 Emissions Level
4.8
Potential CO2 Emissions Level
2.7
CO2 per sq m per Year
55
Mains Gas Available
No
Habitable Rooms
6
Number of Extensions
1
Address
Ynys Manaw, Gwalchmai
Date
17 Jan 2017
Current
Potential
5
38
Property Type
Bungalow
Built Form
Detached
Constructed
1950-1966
+
Certificate History
17 Jan 2017
5
38
Total Floor Area
208 sq m
Current CO2 Emissions Level
15.0
Potential CO2 Emissions Level
7.1
CO2 per sq m per Year
72
Mains Gas Available
No
Habitable Rooms
3
Number of Extensions
2
Address
Ysgubor Esgob, Gwalchmai
Date
8 Apr 2015
Current
Potential
39
100
Property Type
House
Built Form
Detached
Constructed
before 1900
+
Certificate History
8 Apr 2015
39
100
Total Floor Area
96 sq m
Current CO2 Emissions Level
7.7
Potential CO2 Emissions Level
1.0
CO2 per sq m per Year
80
Mains Gas Available
No
Habitable Rooms
5
Number of Extensions
2
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 2026.