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PROPERTY ENERGY EFFICIENCY CERTIFICATE DETAILS
Llewellyn Street, TREORCHY, CF42 5BA

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 Llewellyn Street, CF42 5BA 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 Llewellyn Street, TREORCHY, CF42 5BA
Period Covered: 2008 - 31 October 2024

Address
Inspection Date
Current
Potential
Property Type
Built Form
Constructed
Address
1 Llewellyn Street, Treherbert
Date
8 Sep 2019
Current
Potential
78
83
Property Type
House
Built Form
End-Terrace
Constructed
1900-1929
+
Certificate History
8 Sep 2019
78
83
25 Jun 2019
62
84
29 Oct 2014
51
81
Total Floor Area
70 sq m
Current CO2 Emissions Level
2.8
Potential CO2 Emissions Level
2.2
CO2 per sq m per Year
40
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
1
Address
10 Llewellyn Street, Treherbert
Date
13 Apr 2010
Current
Potential
59
60
Property Type
House
Built Form
End-Terrace
Constructed
before 1900
+
Certificate History
13 Apr 2010
59
60
Total Floor Area
58 sq m
Current CO2 Emissions Level
3.7
Potential CO2 Emissions Level
3.6
CO2 per sq m per Year
63
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
11 Llewellyn Street, Treherbert
Date
14 Apr 2010
Current
Potential
55
73
Property Type
House
Built Form
Mid-Terrace
Constructed
before 1900
+
Certificate History
14 Apr 2010
55
73
Total Floor Area
63 sq m
Current CO2 Emissions Level
4.3
Potential CO2 Emissions Level
2.6
CO2 per sq m per Year
68
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
1
Address
12 Llewellyn Street, Treherbert
Date
24 Sep 2009
Current
Potential
66
67
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
+
Certificate History
24 Sep 2009
66
67
15 Jun 2009
60
64
Total Floor Area
67 sq m
Current CO2 Emissions Level
3.3
Potential CO2 Emissions Level
3.2
CO2 per sq m per Year
49
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
1
Address
12 LLEWELLYN STREET, YNYSWEN
Date
2 Feb 2021
Current
Potential
60
87
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
+
Certificate History
2 Feb 2021
60
87
Total Floor Area
73 sq m
Current CO2 Emissions Level
4.8
Potential CO2 Emissions Level
1.7
CO2 per sq m per Year
66
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
1
Address
14 Llewellyn Street, Treherbert
Date
6 Aug 2019
Current
Potential
54
75
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
+
Certificate History
6 Aug 2019
54
75
25 Nov 2013
59
81
Total Floor Area
96 sq m
Current CO2 Emissions Level
6.7
Potential CO2 Emissions Level
3.9
CO2 per sq m per Year
70
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
2
Address
16 Llewellyn Street, Treherbert
Date
3 May 2020
Current
Potential
61
86
Property Type
House
Built Form
End-Terrace
Constructed
before 1900
+
Certificate History
3 May 2020
61
86
4 Aug 2019
68
83
10 Dec 2014
47
77
Total Floor Area
104 sq m
Current CO2 Emissions Level
6.3
Potential CO2 Emissions Level
2.5
CO2 per sq m per Year
61
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
2 Llewellyn Street, Treherbert
Date
25 Jul 2019
Current
Potential
66
86
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
+
Certificate History
25 Jul 2019
66
86
13 Mar 2015
58
83
Total Floor Area
74 sq m
Current CO2 Emissions Level
3.9
Potential CO2 Emissions Level
1.8
CO2 per sq m per Year
53
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
3 Llewellyn Street, Treherbert
Date
25 Jul 2019
Current
Potential
65
87
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
+
Certificate History
25 Jul 2019
65
87
15 Mar 2015
59
84
Total Floor Area
74 sq m
Current CO2 Emissions Level
4.0
Potential CO2 Emissions Level
1.7
CO2 per sq m per Year
54
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
4 Llewellyn Street, Treherbert
Date
2 Jul 2020
Current
Potential
67
87
Property Type
House
Built Form
Mid-Terrace
Constructed
before 1900
+
Certificate History
2 Jul 2020
67
87
Total Floor Area
83 sq m
Current CO2 Emissions Level
4.4
Potential CO2 Emissions Level
1.9
CO2 per sq m per Year
53
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
2
Address
5 Llewellyn Street, Treherbert
Date
19 Mar 2015
Current
Potential
61
82
Property Type
House
Built Form
End-Terrace
Constructed
1900-1929
+
Certificate History
19 Mar 2015
61
82
Total Floor Area
84 sq m
Current CO2 Emissions Level
5.2
Potential CO2 Emissions Level
2.8
CO2 per sq m per Year
62
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
3
Address
6 Llewellyn Street, Treherbert
Date
20 Mar 2015
Current
Potential
46
79
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
+
Certificate History
20 Mar 2015
46
79
10 Oct 2013
47
84
Total Floor Area
67 sq m
Current CO2 Emissions Level
6.3
Potential CO2 Emissions Level
2.8
CO2 per sq m per Year
94
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
1
Address
7 Llewellyn Street, Treherbert
Date
6 Mar 2009
Current
Potential
66
67
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
+
Certificate History
6 Mar 2009
66
67
20 Feb 2009
58
64
Total Floor Area
77 sq m
Current CO2 Emissions Level
3.2
Potential CO2 Emissions Level
3.1
CO2 per sq m per Year
41
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
1
Address
8 Llewellyn Street, Treherbert
Date
30 Jul 2009
Current
Potential
53
54
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
+
Certificate History
30 Jul 2009
53
54
Total Floor Area
80 sq m
Current CO2 Emissions Level
4.5
Potential CO2 Emissions Level
4.5
CO2 per sq m per Year
56
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
1
Address
9 Llewellyn Street, Treherbert
Date
9 Sep 2020
Current
Potential
67
84
Property Type
House
Built Form
End-Terrace
Constructed
before 1900
+
Certificate History
9 Sep 2020
67
84
5 Jan 2017
60
84
Total Floor Area
104 sq m
Current CO2 Emissions Level
5.2
Potential CO2 Emissions Level
2.9
CO2 per sq m per Year
50
Mains Gas Available
Yes
Habitable Rooms
5
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.