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PROPERTY ENERGY EFFICIENCY CERTIFICATE DETAILS
Bontnewydd, CAERNARFON, LL54 7UN

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 7UN 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 Bontnewydd, CAERNARFON, LL54 7UN
Period Covered: 2008 - 31 January 2025

Address
Inspection Date
Current
Potential
Property Type
Built Form
Constructed
Address
1 & 2 Pen Y Bont Bontnewydd.
Date
5 Apr 2023
Current
Potential
45
75
Property Type
House
Built Form
Detached
Constructed
before 1900
+
Certificate History
5 Apr 2023
45
75
Total Floor Area
130 sq m
Current CO2 Emissions Level
7.6
Potential CO2 Emissions Level
6.0
CO2 per sq m per Year
58
Mains Gas Available
No
Habitable Rooms
7
Number of Extensions
1
Address
AROSFA, A487(T) FROM BONTNEWYDD ROUNDABOUT TO GERDDI BENAR
Date
4 Dec 2020
Current
Potential
41
77
Property Type
House
Built Form
Mid-Terrace
Constructed
before 1900
+
Certificate History
4 Dec 2020
41
77
Total Floor Area
94 sq m
Current CO2 Emissions Level
4.1
Potential CO2 Emissions Level
1.2
CO2 per sq m per Year
44
Mains Gas Available
No
Habitable Rooms
5
Number of Extensions
2
Address
Arosfa, Bontnewydd
Date
22 Jan 2009
Current
Potential
1
27
Property Type
House
Built Form
Mid-Terrace
Constructed
before 1900
+
Certificate History
22 Jan 2009
1
27
Total Floor Area
99 sq m
Current CO2 Emissions Level
21.0
Potential CO2 Emissions Level
2.0
CO2 per sq m per Year
214
Mains Gas Available
No
Habitable Rooms
5
Number of Extensions
0
Address
Bod Helygen, Bontnewydd
Date
5 Mar 2023
Current
Potential
39
68
Property Type
House
Built Form
Mid-Terrace
Constructed
before 1900
+
Certificate History
5 Mar 2023
39
68
5 Apr 2022
25
71
Total Floor Area
98 sq m
Current CO2 Emissions Level
4.6
Potential CO2 Emissions Level
2.1
CO2 per sq m per Year
46
Mains Gas Available
No
Habitable Rooms
4
Number of Extensions
2
Address
Britannia House, Bontnewydd
Date
23 Aug 2024
Current
Potential
50
78
Property Type
House
Built Form
Detached
Constructed
1900-1929
+
Certificate History
23 Aug 2024
50
78
Total Floor Area
101 sq m
Current CO2 Emissions Level
5.9
Potential CO2 Emissions Level
2.7
CO2 per sq m per Year
58
Mains Gas Available
No
Habitable Rooms
5
Number of Extensions
2
Address
Cae'r Felin, Bontnewydd
Date
1 Jun 2015
Current
Potential
59
87
Property Type
House
Built Form
Detached
Constructed
1996-2002
+
Certificate History
1 Jun 2015
59
87
Total Floor Area
169 sq m
Current CO2 Emissions Level
7.7
Potential CO2 Emissions Level
3.2
CO2 per sq m per Year
46
Mains Gas Available
No
Habitable Rooms
6
Number of Extensions
0
Address
Erw Las, Bontnewydd
Date
23 Sep 2019
Current
Potential
45
66
Property Type
House
Built Form
Detached
Constructed
1983-1990
+
Certificate History
23 Sep 2019
45
66
Total Floor Area
97 sq m
Current CO2 Emissions Level
4.0
Potential CO2 Emissions Level
2.1
CO2 per sq m per Year
41
Mains Gas Available
No
Habitable Rooms
4
Number of Extensions
0
Address
Gerallt, Bontnewydd
Date
28 Dec 2017
Current
Potential
17
66
Property Type
House
Built Form
Detached
Constructed
before 1900
+
Certificate History
28 Dec 2017
17
66
Total Floor Area
182 sq m
Current CO2 Emissions Level
11.0
Potential CO2 Emissions Level
3.7
CO2 per sq m per Year
59
Mains Gas Available
No
Habitable Rooms
7
Number of Extensions
0
Address
Glan y Dwr, Bontnewydd
Date
14 Sep 2009
Current
Potential
20
44
Property Type
House
Built Form
End-Terrace
Constructed
1983-1990
+
Certificate History
14 Sep 2009
20
44
Total Floor Area
85 sq m
Current CO2 Emissions Level
5.8
Potential CO2 Emissions Level
3.5
CO2 per sq m per Year
69
Mains Gas Available
No
Habitable Rooms
4
Number of Extensions
1
Address
Graianfa, Bontnewydd
Date
13 Jul 2016
Current
Potential
52
72
Property Type
House
Built Form
End-Terrace
Constructed
before 1900
+
Certificate History
13 Jul 2016
52
72
Total Floor Area
82 sq m
Current CO2 Emissions Level
3.2
Potential CO2 Emissions Level
1.5
CO2 per sq m per Year
39
Mains Gas Available
No
Habitable Rooms
5
Number of Extensions
1
Address
Islwyn, Bontnewydd
Date
19 Feb 2018
Current
Potential
47
68
Property Type
House
Built Form
Mid-Terrace
Constructed
before 1900
+
Certificate History
19 Feb 2018
47
68
23 Aug 2009
1
1
Total Floor Area
74 sq m
Current CO2 Emissions Level
2.7
Potential CO2 Emissions Level
1.2
CO2 per sq m per Year
36
Mains Gas Available
No
Habitable Rooms
5
Number of Extensions
1
Address
Llannerch, Bontnewydd
Date
29 Apr 2020
Current
Potential
29
73
Property Type
Bungalow
Built Form
Mid-Terrace
Constructed
1900-1929
+
Certificate History
29 Apr 2020
29
73
4 Nov 2009
41
62
Total Floor Area
45 sq m
Current CO2 Emissions Level
2.8
Potential CO2 Emissions Level
0.6
CO2 per sq m per Year
61
Mains Gas Available
No
Habitable Rooms
2
Number of Extensions
1
Address
Minafon, Bontnewydd
Date
3 May 2024
Current
Potential
21
78
Property Type
Bungalow
Built Form
Semi-Detached
Constructed
1900-1929
+
Certificate History
3 May 2024
21
78
17 Jan 2012
1
1
29 Aug 2011
5
15
Total Floor Area
81 sq m
Current CO2 Emissions Level
5.5
Potential CO2 Emissions Level
1.0
CO2 per sq m per Year
68
Mains Gas Available
No
Habitable Rooms
5
Number of Extensions
0
Address
Tegfan, Bontnewydd
Date
17 Jun 2020
Current
Potential
43
83
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
+
Certificate History
17 Jun 2020
43
83
Total Floor Area
54 sq m
Current CO2 Emissions Level
4.9
Potential CO2 Emissions Level
1.6
CO2 per sq m per Year
90
Mains Gas Available
No
Habitable Rooms
3
Number of Extensions
0
Address
Ysgubor Newydd, Bontnewydd
Date
14 Jul 2015
Current
Potential
46
88
Property Type
Bungalow
Built Form
End-Terrace
Constructed
before 1900
+
Certificate History
14 Jul 2015
46
88
Total Floor Area
123 sq m
Current CO2 Emissions Level
7.8
Potential CO2 Emissions Level
2.7
CO2 per sq m per Year
63
Mains Gas Available
No
Habitable Rooms
6
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 2025.