PROPERTY ENERGY EFFICIENCY CERTIFICATE DETAILS
Maes Derwydd, LLANGEFNI, LL77 7GA

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 Maes Derwydd, LL77 7GA 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 Maes Derwydd, LLANGEFNI, LL77 7GA
Period Covered: 2008 - 31 January 2025

Address
Inspection Date
Current
Potential
Property Type
Built Form
Constructed
Address
1 Maes Derwydd
Date
1 Aug 2024
Current
Potential
69
83
Property Type
Bungalow
Built Form
Detached
Constructed
1983-1990
+
Certificate History
1 Aug 2024
69
83
Total Floor Area
98 sq m
Current CO2 Emissions Level
3.6
Potential CO2 Emissions Level
1.9
CO2 per sq m per Year
36
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
13 Maes Derwydd
Date
23 Feb 2023
Current
Potential
38
82
Property Type
House
Built Form
Semi-Detached
Constructed
1983-1990
+
Certificate History
23 Feb 2023
38
82
26 May 2010
61
70
Total Floor Area
129 sq m
Current CO2 Emissions Level
8.3
Potential CO2 Emissions Level
2.7
CO2 per sq m per Year
65
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
3
Address
19 Maes Derwydd
Date
16 Mar 2010
Current
Potential
68
70
Property Type
Bungalow
Built Form
Detached
Constructed
1983-1990
+
Certificate History
16 Mar 2010
68
70
Total Floor Area
98 sq m
Current CO2 Emissions Level
3.8
Potential CO2 Emissions Level
3.7
CO2 per sq m per Year
39
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
20 Maes Derwydd
Date
20 Jul 2021
Current
Potential
65
81
Property Type
Bungalow
Built Form
Detached
Constructed
1967-1975
+
Certificate History
20 Jul 2021
65
81
Total Floor Area
92 sq m
Current CO2 Emissions Level
3.9
Potential CO2 Emissions Level
2.1
CO2 per sq m per Year
43
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
23 Maes Derwydd
Date
23 Jul 2014
Current
Potential
64
85
Property Type
Bungalow
Built Form
Detached
Constructed
1983-1990
+
Certificate History
23 Jul 2014
64
85
Total Floor Area
132 sq m
Current CO2 Emissions Level
5.0
Potential CO2 Emissions Level
1.9
CO2 per sq m per Year
38
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
25 Maes Derwydd
Date
12 Jul 2023
Current
Potential
69
82
Property Type
Bungalow
Built Form
Detached
Constructed
1976-1982
+
Certificate History
12 Jul 2023
69
82
3 Jul 2013
56
89
Total Floor Area
99 sq m
Current CO2 Emissions Level
3.7
Potential CO2 Emissions Level
2.0
CO2 per sq m per Year
37
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
26 Maes Derwydd
Date
20 Aug 2009
Current
Potential
55
66
Property Type
Bungalow
Built Form
Detached
Constructed
1983-1990
+
Certificate History
20 Aug 2009
55
66
Total Floor Area
98 sq m
Current CO2 Emissions Level
5.7
Potential CO2 Emissions Level
4.2
CO2 per sq m per Year
58
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
28 Maes Derwydd
Date
6 Jul 2020
Current
Potential
67
82
Property Type
Bungalow
Built Form
Detached
Constructed
1983-1990
+
Certificate History
6 Jul 2020
67
82
Total Floor Area
98 sq m
Current CO2 Emissions Level
3.8
Potential CO2 Emissions Level
2.0
CO2 per sq m per Year
39
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
3 Maes Derwydd
Date
30 May 2016
Current
Potential
68
82
Property Type
Bungalow
Built Form
Detached
Constructed
1983-1990
+
Certificate History
30 May 2016
68
82
Total Floor Area
120 sq m
Current CO2 Emissions Level
4.4
Potential CO2 Emissions Level
2.4
CO2 per sq m per Year
37
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
0
Address
31 Maes Derwydd
Date
15 Oct 2015
Current
Potential
73
84
Property Type
Bungalow
Built Form
Detached
Constructed
1983-1990
+
Certificate History
15 Oct 2015
73
84
Total Floor Area
125 sq m
Current CO2 Emissions Level
3.7
Potential CO2 Emissions Level
2.2
CO2 per sq m per Year
30
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
1
Address
33 Maes Derwydd
Date
24 Jun 2012
Current
Potential
60
83
Property Type
Bungalow
Built Form
Detached
Constructed
1983-1990
+
Certificate History
24 Jun 2012
60
83
Total Floor Area
96 sq m
Current CO2 Emissions Level
4.3
Potential CO2 Emissions Level
1.6
CO2 per sq m per Year
45
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
4 Maes Derwydd
Date
23 May 2012
Current
Potential
65
84
Property Type
Bungalow
Built Form
Detached
Constructed
1996-2002
+
Certificate History
23 May 2012
65
84
Total Floor Area
92 sq m
Current CO2 Emissions Level
3.5
Potential CO2 Emissions Level
1.5
CO2 per sq m per Year
38
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
40 Maes Derwydd
Date
14 Mar 2013
Current
Potential
53
83
Property Type
House
Built Form
Detached
Constructed
1976-1982
+
Certificate History
14 Mar 2013
53
83
Total Floor Area
105 sq m
Current CO2 Emissions Level
5.7
Potential CO2 Emissions Level
1.8
CO2 per sq m per Year
54
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
42 Maes Derwydd
Date
21 Mar 2017
Current
Potential
69
83
Property Type
House
Built Form
Detached
Constructed
1983-1990
+
Certificate History
21 Mar 2017
69
83
21 Feb 2012
67
67
Total Floor Area
107 sq m
Current CO2 Emissions Level
3.9
Potential CO2 Emissions Level
2.1
CO2 per sq m per Year
36
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
43 MAES DERWYDD, LLANGEFNI
Date
23 Nov 2020
Current
Potential
59
78
Property Type
House
Built Form
Detached
Constructed
1983-1990
+
Certificate History
23 Nov 2020
59
78
Total Floor Area
127 sq m
Current CO2 Emissions Level
6.2
Potential CO2 Emissions Level
3.3
CO2 per sq m per Year
49
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
1
Address
45 Maes Derwydd
Date
25 Apr 2010
Current
Potential
53
65
Property Type
Bungalow
Built Form
Detached
Constructed
1983-1990
+
Certificate History
25 Apr 2010
53
65
Total Floor Area
98 sq m
Current CO2 Emissions Level
5.9
Potential CO2 Emissions Level
4.4
CO2 per sq m per Year
60
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
46 Maes Derwydd
Date
15 Apr 2013
Current
Potential
64
80
Property Type
House
Built Form
Detached
Constructed
1983-1990
+
Certificate History
15 Apr 2013
64
80
Total Floor Area
120 sq m
Current CO2 Emissions Level
4.6
Potential CO2 Emissions Level
2.5
CO2 per sq m per Year
38
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
2
Address
48 Maes Derwydd
Date
30 Jun 2010
Current
Potential
57
69
Property Type
Bungalow
Built Form
Detached
Constructed
1983-1990
+
Certificate History
30 Jun 2010
57
69
Total Floor Area
110 sq m
Current CO2 Emissions Level
5.4
Potential CO2 Emissions Level
3.8
CO2 per sq m per Year
55
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
52 Maes Derwydd
Date
6 Sep 2015
Current
Potential
66
77
Property Type
House
Built Form
Detached
Constructed
1983-1990
+
Certificate History
6 Sep 2015
66
77
Total Floor Area
129 sq m
Current CO2 Emissions Level
5.1
Potential CO2 Emissions Level
3.4
CO2 per sq m per Year
39
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
3
Address
55 Maes Derwydd
Date
26 Sep 2018
Current
Potential
68
82
Property Type
Bungalow
Built Form
Detached
Constructed
1983-1990
+
Certificate History
26 Sep 2018
68
82
Total Floor Area
97 sq m
Current CO2 Emissions Level
3.7
Potential CO2 Emissions Level
2.0
CO2 per sq m per Year
38
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
56 Maes Derwydd
Date
21 May 2019
Current
Potential
66
82
Property Type
Bungalow
Built Form
Detached
Constructed
1991-1995
+
Certificate History
21 May 2019
66
82
Total Floor Area
97 sq m
Current CO2 Emissions Level
3.9
Potential CO2 Emissions Level
2.1
CO2 per sq m per Year
40
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
59 Maes Derwydd
Date
27 Mar 2009
Current
Potential
61
69
Property Type
House
Built Form
Semi-Detached
Constructed
1991-1995
+
Certificate History
27 Mar 2009
61
69
Total Floor Area
123 sq m
Current CO2 Emissions Level
5.6
Potential CO2 Emissions Level
4.5
CO2 per sq m per Year
45
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
0
Address
61 Maes Derwydd
Date
24 Mar 2023
Current
Potential
68
78
Property Type
House
Built Form
Semi-Detached
Constructed
1967-1975
+
Certificate History
24 Mar 2023
68
78
11 Apr 2012
64
82
Total Floor Area
131 sq m
Current CO2 Emissions Level
4.8
Potential CO2 Emissions Level
3.2
CO2 per sq m per Year
37
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
2
Address
62 Maes Derwydd
Date
7 Jun 2009
Current
Potential
61
71
Property Type
House
Built Form
Semi-Detached
Constructed
1983-1990
+
Certificate History
7 Jun 2009
61
71
Total Floor Area
160 sq m
Current CO2 Emissions Level
6.3
Potential CO2 Emissions Level
4.8
CO2 per sq m per Year
44
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
0
Address
64 Maes Derwydd
Date
22 Jan 2014
Current
Potential
65
83
Property Type
House
Built Form
Semi-Detached
Constructed
1976-1982
+
Certificate History
22 Jan 2014
65
83
13 Aug 2012
62
81
Total Floor Area
125 sq m
Current CO2 Emissions Level
4.6
Potential CO2 Emissions Level
2.2
CO2 per sq m per Year
37
Mains Gas Available
Yes
Habitable Rooms
7
Number of Extensions
0
Address
65 Maes Derwydd
Date
26 Jan 2018
Current
Potential
63
82
Property Type
House
Built Form
Semi-Detached
Constructed
1991-1995
+
Certificate History
26 Jan 2018
63
82
Total Floor Area
108 sq m
Current CO2 Emissions Level
4.8
Potential CO2 Emissions Level
2.2
CO2 per sq m per Year
45
Mains Gas Available
Yes
Habitable Rooms
7
Number of Extensions
1
Address
67 Maes Derwydd
Date
25 Sep 2024
Current
Potential
90
90
Property Type
House
Built Form
Detached
Constructed
1996-2002
+
Certificate History
25 Sep 2024
90
90
25 Jun 2013
72
81
18 Feb 2009
66
74
Total Floor Area
144 sq m
Current CO2 Emissions Level
1.9
Potential CO2 Emissions Level
1.9
CO2 per sq m per Year
13
Mains Gas Available
Yes
Habitable Rooms
7
Number of Extensions
1
Address
7 Maes Derwydd
Date
12 Sep 2017
Current
Potential
64
81
Property Type
Bungalow
Built Form
Detached
Constructed
1983-1990
+
Certificate History
12 Sep 2017
64
81
Total Floor Area
108 sq m
Current CO2 Emissions Level
4.5
Potential CO2 Emissions Level
2.4
CO2 per sq m per Year
41
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
1
Address
70 Maes Derwydd
Date
17 Feb 2023
Current
Potential
65
75
Property Type
House
Built Form
Semi-Detached
Constructed
1991-1995
+
Certificate History
17 Feb 2023
65
75
Total Floor Area
143 sq m
Current CO2 Emissions Level
5.9
Potential CO2 Emissions Level
4.4
CO2 per sq m per Year
41
Mains Gas Available
Yes
Habitable Rooms
7
Number of Extensions
4
Address
72 Maes Derwydd
Date
6 Aug 2012
Current
Potential
61
80
Property Type
Bungalow
Built Form
Detached
Constructed
1991-1995
+
Certificate History
6 Aug 2012
61
80
Total Floor Area
122 sq m
Current CO2 Emissions Level
5.1
Potential CO2 Emissions Level
2.6
CO2 per sq m per Year
42
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
0
Address
75 Maes Derwydd
Date
27 Jun 2022
Current
Potential
69
84
Property Type
Bungalow
Built Form
Detached
Constructed
1976-1982
+
Certificate History
27 Jun 2022
69
84
29 May 2013
66
79
Total Floor Area
122 sq m
Current CO2 Emissions Level
4.3
Potential CO2 Emissions Level
2.1
CO2 per sq m per Year
36
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
1
Address
76 Maes Derwydd
Date
10 Jul 2024
Current
Potential
65
84
Property Type
House
Built Form
Semi-Detached
Constructed
1983-1990
+
Certificate History
10 Jul 2024
65
84
Total Floor Area
90 sq m
Current CO2 Emissions Level
3.9
Potential CO2 Emissions Level
1.7
CO2 per sq m per Year
44
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
78 Maes Derwydd
Date
29 Aug 2011
Current
Potential
65
71
Property Type
House
Built Form
Semi-Detached
Constructed
1991-1995
+
Certificate History
29 Aug 2011
65
71
Total Floor Area
129 sq m
Current CO2 Emissions Level
5.0
Potential CO2 Emissions Level
4.0
CO2 per sq m per Year
39
Mains Gas Available
Yes
Habitable Rooms
7
Number of Extensions
0
Address
79 Maes Derwydd
Date
25 May 2015
Current
Potential
61
82
Property Type
House
Built Form
Semi-Detached
Constructed
1983-1990
+
Certificate History
25 May 2015
61
82
26 Feb 2009
62
69
Total Floor Area
84 sq m
Current CO2 Emissions Level
4.1
Potential CO2 Emissions Level
1.8
CO2 per sq m per Year
49
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
8 Maes Derwydd
Date
27 Jan 2010
Current
Potential
55
69
Property Type
Bungalow
Built Form
Detached
Constructed
1983-1990
+
Certificate History
27 Jan 2010
55
69
Total Floor Area
103 sq m
Current CO2 Emissions Level
5.7
Potential CO2 Emissions Level
4.0
CO2 per sq m per Year
55
Mains Gas Available
Yes
Habitable Rooms
5
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.