Advanced

PROPERTY ENERGY EFFICIENCY CERTIFICATE DETAILS
St. Helens Street, CAERNARFON, LL55 2HU

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 St. Helens Street, LL55 2HU 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 St. Helens Street, CAERNARFON, LL55 2HU
Period Covered: 2008 - 31 January 2025

Address
Inspection Date
Current
Potential
Property Type
Built Form
Constructed
Address
10 ST HELEN'S STREET, CAERNARFON
Date
21 Oct 2020
Current
Potential
72
89
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
+
Certificate History
21 Oct 2020
72
89
Total Floor Area
61 sq m
Current CO2 Emissions Level
2.3
Potential CO2 Emissions Level
0.9
CO2 per sq m per Year
38
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
10 St. Helens Street
Date
26 Feb 2010
Current
Potential
41
59
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
+
Certificate History
26 Feb 2010
41
59
Total Floor Area
57 sq m
Current CO2 Emissions Level
4.1
Potential CO2 Emissions Level
2.6
CO2 per sq m per Year
71
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
1
Address
12 ST HELEN'S STREET, CAERNARFON
Date
13 Nov 2020
Current
Potential
73
91
Property Type
House
Built Form
Mid-Terrace
Constructed
1930-1949
+
Certificate History
13 Nov 2020
73
91
Total Floor Area
62 sq m
Current CO2 Emissions Level
2.3
Potential CO2 Emissions Level
0.8
CO2 per sq m per Year
37
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
12 St. Helens Street
Date
19 Feb 2016
Current
Potential
59
90
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
+
Certificate History
19 Feb 2016
59
90
29 Sep 2009
63
76
Total Floor Area
60 sq m
Current CO2 Emissions Level
3.8
Potential CO2 Emissions Level
0.8
CO2 per sq m per Year
64
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
1
Address
16 St. Helens Street
Date
3 Apr 2024
Current
Potential
71
86
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
+
Certificate History
3 Apr 2024
71
86
Total Floor Area
61 sq m
Current CO2 Emissions Level
2.4
Potential CO2 Emissions Level
1.3
CO2 per sq m per Year
40
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
1
Address
18 ST HELEN'S STREET, CAERNARFON
Date
3 Feb 2021
Current
Potential
62
83
Property Type
House
Built Form
Mid-Terrace
Constructed
1930-1949
+
Certificate History
3 Feb 2021
62
83
Total Floor Area
56 sq m
Current CO2 Emissions Level
3.3
Potential CO2 Emissions Level
1.5
CO2 per sq m per Year
59
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
1
Address
2 St. Helens Street
Date
21 Oct 2021
Current
Potential
64
88
Property Type
House
Built Form
End-Terrace
Constructed
1900-1929
+
Certificate History
21 Oct 2021
64
88
Total Floor Area
60 sq m
Current CO2 Emissions Level
3.2
Potential CO2 Emissions Level
1.0
CO2 per sq m per Year
53
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
20 St. Helens Street
Date
16 Jan 2013
Current
Potential
57
88
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
+
Certificate History
16 Jan 2013
57
88
Total Floor Area
59 sq m
Current CO2 Emissions Level
3.1
Potential CO2 Emissions Level
0.5
CO2 per sq m per Year
53
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
24 St. Helens Street
Date
15 Jan 2018
Current
Potential
61
89
Property Type
House
Built Form
Mid-Terrace
Constructed
1930-1949
+
Certificate History
15 Jan 2018
61
89
Total Floor Area
48 sq m
Current CO2 Emissions Level
2.9
Potential CO2 Emissions Level
0.7
CO2 per sq m per Year
61
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
1
Address
26 St. Helens Street
Date
25 Oct 2011
Current
Potential
64
66
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
+
Certificate History
25 Oct 2011
64
66
Total Floor Area
46 sq m
Current CO2 Emissions Level
2.5
Potential CO2 Emissions Level
2.3
CO2 per sq m per Year
53
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
1
Address
30 St. Helens Street
Date
15 Oct 2024
Current
Potential
42
86
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
+
Certificate History
15 Oct 2024
42
86
Total Floor Area
58 sq m
Current CO2 Emissions Level
4.8
Potential CO2 Emissions Level
1.2
CO2 per sq m per Year
82
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
1
Address
32 St. Helens Street
Date
1 Oct 2017
Current
Potential
71
90
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
+
Certificate History
1 Oct 2017
71
90
Total Floor Area
53 sq m
Current CO2 Emissions Level
2.3
Potential CO2 Emissions Level
0.8
CO2 per sq m per Year
43
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
1
Address
34 St. Helens Street
Date
4 Mar 2022
Current
Potential
70
88
Property Type
House
Built Form
Mid-Terrace
Constructed
before 1900
+
Certificate History
4 Mar 2022
70
88
16 Jun 2009
68
76
Total Floor Area
54 sq m
Current CO2 Emissions Level
2.4
Potential CO2 Emissions Level
0.9
CO2 per sq m per Year
44
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
1
Address
36 St. Helens Street
Date
18 Dec 2011
Current
Potential
52
70
Property Type
House
Built Form
Mid-Terrace
Constructed
before 1900
+
Certificate History
18 Dec 2011
52
70
Total Floor Area
52 sq m
Current CO2 Emissions Level
3.8
Potential CO2 Emissions Level
2.1
CO2 per sq m per Year
73
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
1
Address
38 ST. HELENS STREET
Date
13 Jul 2021
Current
Potential
23
87
Property Type
House
Built Form
Mid-Terrace
Constructed
1991-1995
+
Certificate History
13 Jul 2021
23
87
Total Floor Area
60 sq m
Current CO2 Emissions Level
10.0
Potential CO2 Emissions Level
1.2
CO2 per sq m per Year
172
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
1
Address
38 St. Helens Street
Date
26 Jan 2018
Current
Potential
51
91
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
+
Certificate History
26 Jan 2018
51
91
Total Floor Area
59 sq m
Current CO2 Emissions Level
6.2
Potential CO2 Emissions Level
2.3
CO2 per sq m per Year
107
Mains Gas Available
No
Habitable Rooms
4
Number of Extensions
1
Address
4 St. Helens Street
Date
24 Jan 2013
Current
Potential
55
89
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
+
Certificate History
24 Jan 2013
55
89
Total Floor Area
67 sq m
Current CO2 Emissions Level
3.8
Potential CO2 Emissions Level
0.7
CO2 per sq m per Year
58
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
1
Address
6 St. Helens Street
Date
25 Jun 2024
Current
Potential
66
82
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
+
Certificate History
25 Jun 2024
66
82
21 May 2014
62
82
Total Floor Area
73 sq m
Current CO2 Emissions Level
3.5
Potential CO2 Emissions Level
2.0
CO2 per sq m per Year
49
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
1
Address
8 St. Helens Street
Date
25 Nov 2019
Current
Potential
74
88
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
+
Certificate History
25 Nov 2019
74
88
2 Dec 2014
69
90
Total Floor Area
62 sq m
Current CO2 Emissions Level
2.0
Potential CO2 Emissions Level
0.8
CO2 per sq m per Year
32
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
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.