PROPERTY ENERGY EFFICIENCY CERTIFICATE DETAILS
Trefeilian Estate, CAERNARFON, LL55 4PZ
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 Trefeilian Estate, LL55 4PZ 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 Trefeilian Estate, CAERNARFON, LL55 4PZ
Period Covered:
2008 - 31 January 2025
Address
Inspection Date
Current
Potential
Property Type
Built Form
Constructed
Address
1 Trefeilian Estate, Waunfawr
Date
30 Aug 2017
Current
Potential
41
103
Property Type
Bungalow
Built Form
End-Terrace
Constructed
1967-1975
Certificate History
30 Aug 2017
41
103
Total Floor Area
59 sq m
Current CO2 Emissions Level
7.7
Potential CO2 Emissions Level
-1.8
CO2 per sq m per Year
131
Mains Gas Available
No
Habitable Rooms
3
Number of Extensions
0
Address
10 Trefeilian Estate, Waunfawr
Date
14 Feb 2022
Current
Potential
66
86
Property Type
Bungalow
Built Form
End-Terrace
Constructed
1950-1966
Certificate History
14 Feb 2022
66
86
28 Aug 2017
57
102
Total Floor Area
59 sq m
Current CO2 Emissions Level
3.2
Potential CO2 Emissions Level
1.6
CO2 per sq m per Year
54
Mains Gas Available
No
Habitable Rooms
3
Number of Extensions
0
Address
11 Trefeilian Estate, Waunfawr
Date
28 Aug 2017
Current
Potential
26
62
Property Type
House
Built Form
End-Terrace
Constructed
1967-1975
Certificate History
28 Aug 2017
26
62
26 Jan 2011
22
29
Total Floor Area
87 sq m
Current CO2 Emissions Level
4.5
Potential CO2 Emissions Level
1.0
CO2 per sq m per Year
51
Mains Gas Available
No
Habitable Rooms
5
Number of Extensions
0
Address
12 Trefeilian Estate, Waunfawr
Date
28 Aug 2017
Current
Potential
32
70
Property Type
House
Built Form
End-Terrace
Constructed
1967-1975
Certificate History
28 Aug 2017
32
70
27 Apr 2016
10
35
Total Floor Area
87 sq m
Current CO2 Emissions Level
4.0
Potential CO2 Emissions Level
0.7
CO2 per sq m per Year
46
Mains Gas Available
No
Habitable Rooms
5
Number of Extensions
0
Address
13 Trefeilian Estate, Waunfawr
Date
29 Aug 2017
Current
Potential
51
96
Property Type
House
Built Form
Mid-Terrace
Constructed
1967-1975
Certificate History
29 Aug 2017
51
96
Total Floor Area
87 sq m
Current CO2 Emissions Level
9.1
Potential CO2 Emissions Level
-1.3
CO2 per sq m per Year
104
Mains Gas Available
No
Habitable Rooms
5
Number of Extensions
0
Address
14 Trefeilian Estate, Waunfawr
Date
29 Aug 2017
Current
Potential
55
96
Property Type
House
Built Form
Mid-Terrace
Constructed
1967-1975
Certificate History
29 Aug 2017
55
96
Total Floor Area
87 sq m
Current CO2 Emissions Level
8.8
Potential CO2 Emissions Level
-1.3
CO2 per sq m per Year
101
Mains Gas Available
No
Habitable Rooms
5
Number of Extensions
0
Address
15 Trefeilian Estate, Waunfawr
Date
29 Aug 2017
Current
Potential
31
70
Property Type
House
Built Form
Mid-Terrace
Constructed
1967-1975
Certificate History
29 Aug 2017
31
70
Total Floor Area
86 sq m
Current CO2 Emissions Level
4.0
Potential CO2 Emissions Level
0.7
CO2 per sq m per Year
46
Mains Gas Available
No
Habitable Rooms
5
Number of Extensions
0
Address
16 Trefeilian Estate, Waunfawr
Date
29 Aug 2017
Current
Potential
40
88
Property Type
House
Built Form
Mid-Terrace
Constructed
1967-1975
Certificate History
29 Aug 2017
40
88
26 Jul 2015
47
73
Total Floor Area
86 sq m
Current CO2 Emissions Level
11.0
Potential CO2 Emissions Level
-1.0
CO2 per sq m per Year
127
Mains Gas Available
No
Habitable Rooms
5
Number of Extensions
0
Address
17 Trefeilian Estate, Waunfawr
Date
1 Feb 2012
Current
Potential
54
65
Property Type
House
Built Form
Mid-Terrace
Constructed
1950-1966
Certificate History
1 Feb 2012
54
65
Total Floor Area
87 sq m
Current CO2 Emissions Level
5.6
Potential CO2 Emissions Level
4.2
CO2 per sq m per Year
65
Mains Gas Available
No
Habitable Rooms
5
Number of Extensions
0
Address
18 Trefeilian Estate, Waunfawr
Date
29 Aug 2017
Current
Potential
53
91
Property Type
House
Built Form
End-Terrace
Constructed
1967-1975
Certificate History
29 Aug 2017
53
91
16 Jul 2014
57
78
Total Floor Area
86 sq m
Current CO2 Emissions Level
6.1
Potential CO2 Emissions Level
2.6
CO2 per sq m per Year
70
Mains Gas Available
No
Habitable Rooms
5
Number of Extensions
0
Address
19 Trefeilian Estate, Waunfawr
Date
29 May 2024
Current
Potential
78
85
Property Type
House
Built Form
End-Terrace
Constructed
1930-1949
Certificate History
29 May 2024
78
85
14 Nov 2016
13
56
Total Floor Area
81 sq m
Current CO2 Emissions Level
1.9
Potential CO2 Emissions Level
1.2
CO2 per sq m per Year
24
Mains Gas Available
No
Habitable Rooms
5
Number of Extensions
0
Address
2 Trefeilian Estate, Waunfawr
Date
12 Mar 2020
Current
Potential
65
83
Property Type
Bungalow
Built Form
Mid-Terrace
Constructed
1967-1975
Certificate History
12 Mar 2020
65
83
20 Dec 2017
65
84
30 Aug 2017
48
94
Total Floor Area
62 sq m
Current CO2 Emissions Level
3.4
Potential CO2 Emissions Level
1.9
CO2 per sq m per Year
55
Mains Gas Available
No
Habitable Rooms
4
Number of Extensions
0
Address
20 Trefeilian Estate, Waunfawr
Date
30 Aug 2017
Current
Potential
28
66
Property Type
House
Built Form
Mid-Terrace
Constructed
1967-1975
Certificate History
30 Aug 2017
28
66
16 Jul 2014
42
68
Total Floor Area
78 sq m
Current CO2 Emissions Level
3.9
Potential CO2 Emissions Level
0.7
CO2 per sq m per Year
50
Mains Gas Available
No
Habitable Rooms
5
Number of Extensions
0
Address
21 Trefeilian Estate, Waunfawr
Date
18 Dec 2023
Current
Potential
62
90
Property Type
House
Built Form
Mid-Terrace
Constructed
1967-1975
Certificate History
18 Dec 2023
62
90
13 Nov 2019
45
88
Total Floor Area
73 sq m
Current CO2 Emissions Level
3.6
Potential CO2 Emissions Level
2.4
CO2 per sq m per Year
50
Mains Gas Available
No
Habitable Rooms
4
Number of Extensions
0
Address
22 Trefeilian Estate, Waunfawr
Date
30 Aug 2017
Current
Potential
18
47
Property Type
House
Built Form
End-Terrace
Constructed
1967-1975
Certificate History
30 Aug 2017
18
47
16 Jul 2014
30
58
Total Floor Area
86 sq m
Current CO2 Emissions Level
5.4
Potential CO2 Emissions Level
2.1
CO2 per sq m per Year
62
Mains Gas Available
No
Habitable Rooms
5
Number of Extensions
0
Address
23 Trefeilian Estate, Waunfawr
Date
30 Aug 2017
Current
Potential
57
102
Property Type
Bungalow
Built Form
End-Terrace
Constructed
1967-1975
Certificate History
30 Aug 2017
57
102
16 Jul 2014
60
83
Total Floor Area
59 sq m
Current CO2 Emissions Level
4.2
Potential CO2 Emissions Level
0.8
CO2 per sq m per Year
71
Mains Gas Available
No
Habitable Rooms
3
Number of Extensions
0
Address
24 Trefeilian Estate, Waunfawr
Date
30 Aug 2017
Current
Potential
18
61
Property Type
Bungalow
Built Form
Mid-Terrace
Constructed
1967-1975
Certificate History
30 Aug 2017
18
61
26 Jan 2010
17
42
Total Floor Area
59 sq m
Current CO2 Emissions Level
4.0
Potential CO2 Emissions Level
0.6
CO2 per sq m per Year
67
Mains Gas Available
No
Habitable Rooms
3
Number of Extensions
0
Address
25 Trefeilian Estate, Waunfawr
Date
30 Aug 2017
Current
Potential
32
84
Property Type
Bungalow
Built Form
Mid-Terrace
Constructed
1967-1975
Certificate History
30 Aug 2017
32
84
8 Nov 2011
50
51
Total Floor Area
59 sq m
Current CO2 Emissions Level
3.0
Potential CO2 Emissions Level
-0.3
CO2 per sq m per Year
51
Mains Gas Available
No
Habitable Rooms
3
Number of Extensions
0
Address
26 Trefeilian Estate, Waunfawr
Date
30 Aug 2017
Current
Potential
33
84
Property Type
Bungalow
Built Form
Mid-Terrace
Constructed
1967-1975
Certificate History
30 Aug 2017
33
84
Total Floor Area
59 sq m
Current CO2 Emissions Level
3.0
Potential CO2 Emissions Level
-0.3
CO2 per sq m per Year
51
Mains Gas Available
No
Habitable Rooms
3
Number of Extensions
0
Address
27 Trefeilian Estate, Waunfawr
Date
30 Aug 2017
Current
Potential
50
102
Property Type
Bungalow
Built Form
End-Terrace
Constructed
1967-1975
Certificate History
30 Aug 2017
50
102
6 Sep 2009
32
48
Total Floor Area
59 sq m
Current CO2 Emissions Level
4.7
Potential CO2 Emissions Level
0.8
CO2 per sq m per Year
80
Mains Gas Available
No
Habitable Rooms
3
Number of Extensions
0
Address
3 Trefeilian Estate, Waunfawr
Date
30 Aug 2017
Current
Potential
27
76
Property Type
Bungalow
Built Form
End-Terrace
Constructed
1967-1975
Certificate History
30 Aug 2017
27
76
Total Floor Area
59 sq m
Current CO2 Emissions Level
3.4
Potential CO2 Emissions Level
0.0
CO2 per sq m per Year
58
Mains Gas Available
No
Habitable Rooms
3
Number of Extensions
0
Address
4 Trefeilian Estate, Waunfawr
Date
29 Aug 2017
Current
Potential
59
111
Property Type
Bungalow
Built Form
Semi-Detached
Constructed
1976-1982
Certificate History
29 Aug 2017
59
111
18 Dec 2012
66
87
Total Floor Area
52 sq m
Current CO2 Emissions Level
3.7
Potential CO2 Emissions Level
0.0
CO2 per sq m per Year
71
Mains Gas Available
No
Habitable Rooms
3
Number of Extensions
0
Address
5 Trefeilian Estate, Waunfawr
Date
29 Aug 2017
Current
Potential
61
111
Property Type
Bungalow
Built Form
Semi-Detached
Constructed
1976-1982
Certificate History
29 Aug 2017
61
111
16 Jul 2014
58
81
Total Floor Area
52 sq m
Current CO2 Emissions Level
3.5
Potential CO2 Emissions Level
0.0
CO2 per sq m per Year
67
Mains Gas Available
No
Habitable Rooms
3
Number of Extensions
0
Address
6 Trefeilian Estate, Waunfawr
Date
28 Aug 2017
Current
Potential
61
111
Property Type
Bungalow
Built Form
Semi-Detached
Constructed
1976-1982
Certificate History
28 Aug 2017
61
111
14 May 2009
56
65
Total Floor Area
52 sq m
Current CO2 Emissions Level
3.5
Potential CO2 Emissions Level
0.0
CO2 per sq m per Year
67
Mains Gas Available
No
Habitable Rooms
3
Number of Extensions
0
Address
7 Trefeilian Estate, Waunfawr
Date
28 Aug 2017
Current
Potential
31
89
Property Type
Bungalow
Built Form
Semi-Detached
Constructed
1976-1982
Certificate History
28 Aug 2017
31
89
17 Sep 2012
47
69
Total Floor Area
52 sq m
Current CO2 Emissions Level
2.9
Potential CO2 Emissions Level
-0.6
CO2 per sq m per Year
56
Mains Gas Available
No
Habitable Rooms
3
Number of Extensions
0
Address
8 Trefeilian Estate, Waunfawr
Date
29 Aug 2017
Current
Potential
57
102
Property Type
Bungalow
Built Form
End-Terrace
Constructed
1967-1975
Certificate History
29 Aug 2017
57
102
16 Jul 2014
61
83
10 Feb 2009
25
50
Total Floor Area
59 sq m
Current CO2 Emissions Level
4.2
Potential CO2 Emissions Level
0.8
CO2 per sq m per Year
71
Mains Gas Available
No
Habitable Rooms
3
Number of Extensions
0
Address
9 Trefeilian Estate, Waunfawr
Date
29 Aug 2017
Current
Potential
62
106
Property Type
Bungalow
Built Form
Mid-Terrace
Constructed
1967-1975
Certificate History
29 Aug 2017
62
106
16 Jul 2014
66
87
Total Floor Area
59 sq m
Current CO2 Emissions Level
3.7
Potential CO2 Emissions Level
0.4
CO2 per sq m per Year
62
Mains Gas Available
No
Habitable Rooms
3
Number of Extensions
0
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 2025.