PROPERTY ENERGY EFFICIENCY CERTIFICATE DETAILS
Margaret Street, CAERNARFON, LL55 1NB
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 Margaret Street, LL55 1NB 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 Margaret Street, CAERNARFON, LL55 1NB
Period Covered:
2008 - 31 January 2025
Address
Inspection Date
Current
Potential
Property Type
Built Form
Constructed
Address
1 Margaret Street
Date
31 Jul 2017
Current
Potential
67
84
Property Type
House
Built Form
End-Terrace
Constructed
before 1900
Certificate History
31 Jul 2017
67
84
29 Dec 2015
56
85
29 Dec 2015
53
87
Total Floor Area
68 sq m
Current CO2 Emissions Level
3.1
Potential CO2 Emissions Level
1.6
CO2 per sq m per Year
46
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
1
Address
10 Margaret Street
Date
6 Jan 2016
Current
Potential
60
82
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
6 Jan 2016
60
82
Total Floor Area
74 sq m
Current CO2 Emissions Level
4.2
Potential CO2 Emissions Level
1.9
CO2 per sq m per Year
58
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
2
Address
11 Margaret Street
Date
29 Dec 2015
Current
Potential
60
87
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
29 Dec 2015
60
87
29 Dec 2015
61
86
Total Floor Area
86 sq m
Current CO2 Emissions Level
4.8
Potential CO2 Emissions Level
1.6
CO2 per sq m per Year
56
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
3
Address
12 Margaret Street
Date
4 Jan 2016
Current
Potential
59
83
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
4 Jan 2016
59
83
13 Dec 2012
61
90
Total Floor Area
77 sq m
Current CO2 Emissions Level
4.4
Potential CO2 Emissions Level
1.9
CO2 per sq m per Year
57
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
2
Address
13 Margaret Street
Date
5 Jan 2016
Current
Potential
52
88
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
5 Jan 2016
52
88
Total Floor Area
69 sq m
Current CO2 Emissions Level
5.1
Potential CO2 Emissions Level
1.1
CO2 per sq m per Year
74
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
1
Address
14 Margaret Street
Date
28 Feb 2017
Current
Potential
44
81
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
28 Feb 2017
44
81
30 Dec 2015
29
79
Total Floor Area
92 sq m
Current CO2 Emissions Level
8.9
Potential CO2 Emissions Level
2.6
CO2 per sq m per Year
96
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
2
Address
15 Margaret Street
Date
13 Jan 2016
Current
Potential
46
87
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
13 Jan 2016
46
87
Total Floor Area
69 sq m
Current CO2 Emissions Level
5.7
Potential CO2 Emissions Level
1.4
CO2 per sq m per Year
82
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
1
Address
16 Margaret Street
Date
30 Dec 2015
Current
Potential
42
87
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
30 Dec 2015
42
87
Total Floor Area
83 sq m
Current CO2 Emissions Level
7.1
Potential CO2 Emissions Level
1.4
CO2 per sq m per Year
86
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
3
Address
17 Margaret Street
Date
15 Jan 2016
Current
Potential
56
79
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
15 Jan 2016
56
79
8 Feb 2011
52
52
Total Floor Area
78 sq m
Current CO2 Emissions Level
4.9
Potential CO2 Emissions Level
2.4
CO2 per sq m per Year
62
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
2
Address
18 Margaret Street
Date
22 Jan 2016
Current
Potential
59
87
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
22 Jan 2016
59
87
10 Feb 2010
64
70
Total Floor Area
64 sq m
Current CO2 Emissions Level
4.0
Potential CO2 Emissions Level
1.2
CO2 per sq m per Year
62
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
1
Address
19 Margaret Street
Date
8 Feb 2016
Current
Potential
52
88
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
8 Feb 2016
52
88
15 May 2012
61
90
Total Floor Area
68 sq m
Current CO2 Emissions Level
4.6
Potential CO2 Emissions Level
0.9
CO2 per sq m per Year
67
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
1
Address
2 Margaret Street
Date
24 Oct 2021
Current
Potential
70
84
Property Type
House
Built Form
End-Terrace
Constructed
1900-1929
Certificate History
24 Oct 2021
70
84
28 Jan 2016
54
87
Total Floor Area
83 sq m
Current CO2 Emissions Level
3.0
Potential CO2 Emissions Level
1.6
CO2 per sq m per Year
36
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
1
Address
20 Margaret Street
Date
4 Jan 2016
Current
Potential
54
80
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
4 Jan 2016
54
80
Total Floor Area
85 sq m
Current CO2 Emissions Level
5.1
Potential CO2 Emissions Level
2.2
CO2 per sq m per Year
59
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
2
Address
21 Margaret Street
Date
7 Jan 2016
Current
Potential
24
90
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
7 Jan 2016
24
90
Total Floor Area
81 sq m
Current CO2 Emissions Level
7.3
Potential CO2 Emissions Level
1.0
CO2 per sq m per Year
91
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
2
Address
22 Margaret Street
Date
5 Jan 2016
Current
Potential
56
89
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
5 Jan 2016
56
89
Total Floor Area
85 sq m
Current CO2 Emissions Level
4.6
Potential CO2 Emissions Level
1.2
CO2 per sq m per Year
54
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
2
Address
23 Margaret Street
Date
14 Jan 2016
Current
Potential
64
86
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
14 Jan 2016
64
86
29 Jun 2010
61
67
Total Floor Area
75 sq m
Current CO2 Emissions Level
3.7
Potential CO2 Emissions Level
1.5
CO2 per sq m per Year
49
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
2
Address
24 Margaret Street
Date
29 Dec 2015
Current
Potential
63
87
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
29 Dec 2015
63
87
29 Dec 2015
61
88
Total Floor Area
71 sq m
Current CO2 Emissions Level
3.8
Potential CO2 Emissions Level
1.2
CO2 per sq m per Year
54
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
1
Address
25 Margaret Street
Date
15 Jan 2016
Current
Potential
46
76
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
15 Jan 2016
46
76
Total Floor Area
75 sq m
Current CO2 Emissions Level
6.2
Potential CO2 Emissions Level
2.8
CO2 per sq m per Year
82
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
2
Address
26 Margaret Street
Date
11 Jan 2016
Current
Potential
55
82
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
11 Jan 2016
55
82
Total Floor Area
96 sq m
Current CO2 Emissions Level
5.9
Potential CO2 Emissions Level
2.4
CO2 per sq m per Year
61
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
2
Address
27 Margaret Street
Date
30 Dec 2015
Current
Potential
45
81
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
30 Dec 2015
45
81
Total Floor Area
92 sq m
Current CO2 Emissions Level
7.3
Potential CO2 Emissions Level
2.5
CO2 per sq m per Year
80
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
2
Address
28 Margaret Street
Date
4 Jan 2016
Current
Potential
54
79
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
4 Jan 2016
54
79
Total Floor Area
75 sq m
Current CO2 Emissions Level
5.1
Potential CO2 Emissions Level
2.4
CO2 per sq m per Year
67
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
2
Address
29 Margaret Street
Date
20 Jun 2017
Current
Potential
60
88
Property Type
House
Built Form
Mid-Terrace
Constructed
1950-1966
Certificate History
20 Jun 2017
60
88
29 Dec 2015
40
85
17 Feb 2014
45
83
Total Floor Area
77 sq m
Current CO2 Emissions Level
4.3
Potential CO2 Emissions Level
1.1
CO2 per sq m per Year
56
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
3
Address
3 Margaret Street
Date
18 Jan 2016
Current
Potential
35
88
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
18 Jan 2016
35
88
Total Floor Area
73 sq m
Current CO2 Emissions Level
6.6
Potential CO2 Emissions Level
1.2
CO2 per sq m per Year
89
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
2
Address
30 Margaret Street
Date
11 Feb 2016
Current
Potential
51
80
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
11 Feb 2016
51
80
9 May 2013
61
87
Total Floor Area
70 sq m
Current CO2 Emissions Level
5.3
Potential CO2 Emissions Level
2.1
CO2 per sq m per Year
75
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
1
Address
31 Margaret Street
Date
30 Dec 2015
Current
Potential
59
80
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
30 Dec 2015
59
80
Total Floor Area
83 sq m
Current CO2 Emissions Level
4.8
Potential CO2 Emissions Level
2.4
CO2 per sq m per Year
57
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
3
Address
32 Margaret Street
Date
1 Dec 2025
Current
Potential
72
81
Property Type
N/A
Built Form
N/A
Constructed
N/A
Certificate History
1 Dec 2025
72
81
6 Jan 2016
51
84
Total Floor Area
70 sq m
Current CO2 Emissions Level
2.5
Potential CO2 Emissions Level
1.9
CO2 per sq m per Year
36
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
1
Address
33 Margaret Street
Date
30 Dec 2015
Current
Potential
60
87
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
30 Dec 2015
60
87
29 Oct 2008
65
72
Total Floor Area
76 sq m
Current CO2 Emissions Level
4.3
Potential CO2 Emissions Level
1.3
CO2 per sq m per Year
57
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
2
Address
34 Margaret Street
Date
28 Jan 2016
Current
Potential
60
87
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
28 Jan 2016
60
87
Total Floor Area
70 sq m
Current CO2 Emissions Level
4.1
Potential CO2 Emissions Level
1.3
CO2 per sq m per Year
59
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
1
Address
35 Margaret Street
Date
28 Jun 2017
Current
Potential
59
87
Property Type
House
Built Form
Mid-Terrace
Constructed
before 1900
Certificate History
28 Jun 2017
59
87
18 Jan 2016
47
89
Total Floor Area
73 sq m
Current CO2 Emissions Level
4.4
Potential CO2 Emissions Level
1.3
CO2 per sq m per Year
60
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
2
Address
36 Margaret Street
Date
7 Jan 2016
Current
Potential
62
89
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
7 Jan 2016
62
89
Total Floor Area
75 sq m
Current CO2 Emissions Level
4.0
Potential CO2 Emissions Level
1.1
CO2 per sq m per Year
53
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
2
Address
37 Margaret Street
Date
7 Jan 2016
Current
Potential
44
82
Property Type
House
Built Form
End-Terrace
Constructed
1900-1929
Certificate History
7 Jan 2016
44
82
Total Floor Area
83 sq m
Current CO2 Emissions Level
6.9
Potential CO2 Emissions Level
2.1
CO2 per sq m per Year
84
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
1
Address
38 Margaret Street
Date
30 Apr 2024
Current
Potential
73
87
Property Type
House
Built Form
End-Terrace
Constructed
1900-1929
Certificate History
30 Apr 2024
73
87
22 Jan 2016
1
88
Total Floor Area
72 sq m
Current CO2 Emissions Level
2.6
Potential CO2 Emissions Level
1.3
CO2 per sq m per Year
36
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
2
Address
4 Margaret Street
Date
31 May 2017
Current
Potential
57
90
Property Type
House
Built Form
Mid-Terrace
Constructed
before 1900
Certificate History
31 May 2017
57
90
4 Jan 2016
39
89
Total Floor Area
68 sq m
Current CO2 Emissions Level
4.5
Potential CO2 Emissions Level
0.8
CO2 per sq m per Year
65
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
1
Address
5 Margaret Street
Date
4 Jan 2016
Current
Potential
59
88
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
4 Jan 2016
59
88
9 May 2010
58
73
Total Floor Area
85 sq m
Current CO2 Emissions Level
4.8
Potential CO2 Emissions Level
1.4
CO2 per sq m per Year
57
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
3
Address
5 MARGARET STREET, CAERNARFON
Date
25 Jan 2021
Current
Potential
73
88
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
25 Jan 2021
73
88
Total Floor Area
98 sq m
Current CO2 Emissions Level
3.2
Potential CO2 Emissions Level
1.5
CO2 per sq m per Year
32
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
2
Address
6 Margaret Street
Date
8 Feb 2016
Current
Potential
48
87
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
8 Feb 2016
48
87
27 Apr 2015
63
87
Total Floor Area
75 sq m
Current CO2 Emissions Level
5.9
Potential CO2 Emissions Level
1.4
CO2 per sq m per Year
79
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
1
Address
7 Margaret Street
Date
11 Feb 2016
Current
Potential
62
89
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
11 Feb 2016
62
89
23 Nov 2012
62
85
Total Floor Area
68 sq m
Current CO2 Emissions Level
3.9
Potential CO2 Emissions Level
1.0
CO2 per sq m per Year
57
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
1
Address
8 Margaret Street
Date
7 Jan 2016
Current
Potential
50
77
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
7 Jan 2016
50
77
Total Floor Area
74 sq m
Current CO2 Emissions Level
5.0
Potential CO2 Emissions Level
2.2
CO2 per sq m per Year
67
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
2
Address
9 Margaret Street
Date
19 Jan 2016
Current
Potential
65
89
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
19 Jan 2016
65
89
Total Floor Area
74 sq m
Current CO2 Emissions Level
3.7
Potential CO2 Emissions Level
1.1
CO2 per sq m per Year
50
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
2
Bands
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.