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PROPERTY ENERGY EFFICIENCY CERTIFICATE DETAILS
Treharne Street, MERTHYR TYDFIL, CF48 4SJ

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 Treharne Street, CF48 4SJ 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 Treharne Street, MERTHYR TYDFIL, CF48 4SJ
Period Covered: 2008 - 31 January 2025

Address
Inspection Date
Current
Potential
Property Type
Built Form
Constructed
Address
1 Treharne Street, Merthyr Vale
Date
8 Jan 2020
Current
Potential
69
84
Property Type
House
Built Form
End-Terrace
Constructed
1900-1929
+
Certificate History
8 Jan 2020
69
84
11 Aug 2009
47
60
11 Aug 2009
44
57
Total Floor Area
80 sq m
Current CO2 Emissions Level
3.3
Potential CO2 Emissions Level
1.8
CO2 per sq m per Year
41
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
10 Treharne Street, Merthyr Vale
Date
10 Dec 2025
Current
Potential
75
82
Property Type
N/A
Built Form
N/A
Constructed
N/A
+
Certificate History
10 Dec 2025
75
82
8 Jan 2020
60
79
12 Aug 2009
53
66
Total Floor Area
83 sq m
Current CO2 Emissions Level
2.4
Potential CO2 Emissions Level
2.0
CO2 per sq m per Year
29
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
1
Address
12 Treharne Street, Merthyr Vale
Date
17 Mar 2023
Current
Potential
70
81
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
+
Certificate History
17 Mar 2023
70
81
11 Aug 2009
54
66
Total Floor Area
84 sq m
Current CO2 Emissions Level
3.4
Potential CO2 Emissions Level
2.3
CO2 per sq m per Year
41
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
1
Address
14 Treharne Street, Merthyr Vale
Date
8 Jan 2020
Current
Potential
70
85
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
+
Certificate History
8 Jan 2020
70
85
11 Aug 2009
67
68
Total Floor Area
80 sq m
Current CO2 Emissions Level
3.2
Potential CO2 Emissions Level
1.7
CO2 per sq m per Year
40
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
15 Treharne Street, Merthyr Vale
Date
26 Sep 2011
Current
Potential
40
65
Property Type
House
Built Form
Mid-Terrace
Constructed
1930-1949
+
Certificate History
26 Sep 2011
40
65
Total Floor Area
86 sq m
Current CO2 Emissions Level
6.8
Potential CO2 Emissions Level
3.7
CO2 per sq m per Year
79
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
1
Address
16 Treharne Street, Merthyr Vale
Date
6 Dec 2021
Current
Potential
76
89
Property Type
House
Built Form
Mid-Terrace
Constructed
1967-1975
+
Certificate History
6 Dec 2021
76
89
11 Aug 2009
51
66
Total Floor Area
77 sq m
Current CO2 Emissions Level
2.3
Potential CO2 Emissions Level
1.1
CO2 per sq m per Year
30
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
1
Address
17 Treharne Street, Merthyr Vale
Date
17 Jan 2024
Current
Potential
70
84
Property Type
House
Built Form
End-Terrace
Constructed
1950-1966
+
Certificate History
17 Jan 2024
70
84
8 Jan 2020
64
78
11 Aug 2009
59
60
Total Floor Area
87 sq m
Current CO2 Emissions Level
3.3
Potential CO2 Emissions Level
1.9
CO2 per sq m per Year
38
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
1
Address
2 Treharne Street, Merthyr Vale
Date
29 Nov 2021
Current
Potential
76
88
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
+
Certificate History
29 Nov 2021
76
88
11 Aug 2009
61
62
Total Floor Area
92 sq m
Current CO2 Emissions Level
2.8
Potential CO2 Emissions Level
1.4
CO2 per sq m per Year
30
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
1
Address
4 Treharne Street, Merthyr Vale
Date
18 Dec 2018
Current
Potential
61
85
Property Type
House
Built Form
Mid-Terrace
Constructed
1950-1966
+
Certificate History
18 Dec 2018
61
85
14 Nov 2008
52
70
Total Floor Area
82 sq m
Current CO2 Emissions Level
4.5
Potential CO2 Emissions Level
1.8
CO2 per sq m per Year
55
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
1
Address
5 Treharne Street, Merthyr Vale
Date
25 Jul 2017
Current
Potential
65
78
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
+
Certificate History
25 Jul 2017
65
78
8 Aug 2013
63
81
Total Floor Area
83 sq m
Current CO2 Emissions Level
4.1
Potential CO2 Emissions Level
2.8
CO2 per sq m per Year
50
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
1
Address
6 Treharne Street, Merthyr Vale
Date
7 Mar 2015
Current
Potential
64
86
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
+
Certificate History
7 Mar 2015
64
86
Total Floor Area
83 sq m
Current CO2 Emissions Level
4.1
Potential CO2 Emissions Level
1.6
CO2 per sq m per Year
49
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
3
Address
7 Treharne Street, Merthyr Vale
Date
22 Aug 2023
Current
Potential
57
87
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
+
Certificate History
22 Aug 2023
57
87
Total Floor Area
85 sq m
Current CO2 Emissions Level
5.2
Potential CO2 Emissions Level
1.6
CO2 per sq m per Year
62
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
1
Address
8 Treharne Street, Merthyr Vale
Date
12 Jan 2015
Current
Potential
58
89
Property Type
House
Built Form
End-Terrace
Constructed
before 1900
+
Certificate History
12 Jan 2015
58
89
Total Floor Area
78 sq m
Current CO2 Emissions Level
4.8
Potential CO2 Emissions Level
1.2
CO2 per sq m per Year
62
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
1
Address
9 Treharne Street, Merthyr Vale
Date
7 Oct 2019
Current
Potential
67
84
Property Type
House
Built Form
End-Terrace
Constructed
before 1900
+
Certificate History
7 Oct 2019
67
84
11 Aug 2009
43
57
Total Floor Area
83 sq m
Current CO2 Emissions Level
3.6
Potential CO2 Emissions Level
1.9
CO2 per sq m per Year
43
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
1
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 2026.