PROPERTY ENERGY EFFICIENCY CERTIFICATE DETAILS
Mary Street, MOUNTAIN ASH, CF45 4HH
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 Mary Street, CF45 4HH 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 Mary Street, MOUNTAIN ASH, CF45 4HH
Period Covered:
2008 - 31 January 2025
Address
Inspection Date
Current
Potential
Property Type
Built Form
Constructed
Address
1 Mary Street
Date
3 Apr 2022
Current
Potential
67
85
Property Type
House
Built Form
End-Terrace
Constructed
1900-1929
Certificate History
3 Apr 2022
67
85
Total Floor Area
90 sq m
Current CO2 Emissions Level
3.5
Potential CO2 Emissions Level
1.5
CO2 per sq m per Year
39
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
1
Address
1 St Mary's Close, Mary Street
Date
21 Oct 2008
Current
Potential
81
82
Property Type
House
Built Form
Semi-Detached
Constructed
2007 onwards
Certificate History
21 Oct 2008
81
82
Total Floor Area
101 sq m
Current CO2 Emissions Level
2.0
Potential CO2 Emissions Level
1.9
CO2 per sq m per Year
23
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
10 Mary Street
Date
22 Aug 2018
Current
Potential
67
85
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
22 Aug 2018
67
85
Total Floor Area
77 sq m
Current CO2 Emissions Level
3.5
Potential CO2 Emissions Level
1.6
CO2 per sq m per Year
46
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
1
Address
12 Mary Street
Date
16 Mar 2018
Current
Potential
64
88
Property Type
House
Built Form
Mid-Terrace
Constructed
before 1900
Certificate History
16 Mar 2018
64
88
Total Floor Area
84 sq m
Current CO2 Emissions Level
4.1
Potential CO2 Emissions Level
1.3
CO2 per sq m per Year
49
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
2
Address
13 Mary Street
Date
7 May 2014
Current
Potential
65
89
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
7 May 2014
65
89
16 Jul 2009
63
74
Total Floor Area
70 sq m
Current CO2 Emissions Level
2.9
Potential CO2 Emissions Level
0.6
CO2 per sq m per Year
41
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
1
Address
14 Mary Street
Date
3 Sep 2023
Current
Potential
58
84
Property Type
House
Built Form
End-Terrace
Constructed
1900-1929
Certificate History
3 Sep 2023
58
84
Total Floor Area
82 sq m
Current CO2 Emissions Level
4.9
Potential CO2 Emissions Level
1.9
CO2 per sq m per Year
60
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
1
Address
15 Mary Street
Date
2 Feb 2017
Current
Potential
53
80
Property Type
House
Built Form
End-Terrace
Constructed
before 1900
Certificate History
2 Feb 2017
53
80
Total Floor Area
93 sq m
Current CO2 Emissions Level
5.6
Potential CO2 Emissions Level
2.4
CO2 per sq m per Year
60
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
2
Address
16 Mary Street
Date
9 Mar 2018
Current
Potential
63
86
Property Type
House
Built Form
Mid-Terrace
Constructed
before 1900
Certificate History
9 Mar 2018
63
86
14 Jun 2015
59
87
24 Jan 2014
52
81
1 Oct 2013
55
84
Total Floor Area
76 sq m
Current CO2 Emissions Level
3.7
Potential CO2 Emissions Level
1.3
CO2 per sq m per Year
48
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
1
Address
17 Mary Street
Date
14 Jun 2024
Current
Potential
64
88
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
14 Jun 2024
64
88
Total Floor Area
69 sq m
Current CO2 Emissions Level
3.2
Potential CO2 Emissions Level
1.0
CO2 per sq m per Year
47
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
1
Address
19 Mary Street
Date
4 Sep 2023
Current
Potential
71
90
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
4 Sep 2023
71
90
Total Floor Area
65 sq m
Current CO2 Emissions Level
2.6
Potential CO2 Emissions Level
0.9
CO2 per sq m per Year
40
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
1
Address
2 Mary Street
Date
21 Jan 2016
Current
Potential
64
91
Property Type
House
Built Form
Mid-Terrace
Constructed
before 1900
Certificate History
21 Jan 2016
64
91
Total Floor Area
59 sq m
Current CO2 Emissions Level
3.1
Potential CO2 Emissions Level
0.6
CO2 per sq m per Year
52
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
2 St Mary's Close, Mary Street
Date
21 Oct 2008
Current
Potential
80
82
Property Type
House
Built Form
Semi-Detached
Constructed
2007 onwards
Certificate History
21 Oct 2008
80
82
Total Floor Area
101 sq m
Current CO2 Emissions Level
2.0
Potential CO2 Emissions Level
1.9
CO2 per sq m per Year
24
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
20 Mary Street
Date
12 Dec 2017
Current
Potential
62
88
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
12 Dec 2017
62
88
Total Floor Area
74 sq m
Current CO2 Emissions Level
4.1
Potential CO2 Emissions Level
1.1
CO2 per sq m per Year
55
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
1
Address
23 Mary Street
Date
6 Dec 2012
Current
Potential
65
89
Property Type
House
Built Form
Mid-Terrace
Constructed
before 1900
Certificate History
6 Dec 2012
65
89
Total Floor Area
67 sq m
Current CO2 Emissions Level
2.8
Potential CO2 Emissions Level
0.5
CO2 per sq m per Year
41
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
1
Address
25 Mary Street
Date
21 May 2012
Current
Potential
71
87
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
21 May 2012
71
87
21 Feb 2012
67
67
Total Floor Area
75 sq m
Current CO2 Emissions Level
2.4
Potential CO2 Emissions Level
0.9
CO2 per sq m per Year
33
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
1
Address
27 Mary Street
Date
16 Jul 2020
Current
Potential
72
86
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
16 Jul 2020
72
86
Total Floor Area
85 sq m
Current CO2 Emissions Level
3.1
Potential CO2 Emissions Level
1.5
CO2 per sq m per Year
36
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
1
Address
30 Mary Street
Date
12 Mar 2015
Current
Potential
55
87
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
12 Mar 2015
55
87
Total Floor Area
67 sq m
Current CO2 Emissions Level
4.1
Potential CO2 Emissions Level
1.0
CO2 per sq m per Year
62
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
1
Address
31 Mary Street
Date
19 May 2023
Current
Potential
67
86
Property Type
House
Built Form
Mid-Terrace
Constructed
before 1900
Certificate History
19 May 2023
67
86
12 Oct 2015
45
82
Total Floor Area
80 sq m
Current CO2 Emissions Level
3.6
Potential CO2 Emissions Level
1.6
CO2 per sq m per Year
45
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
1
Address
32 Mary Street
Date
22 Jul 2014
Current
Potential
56
86
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
22 Jul 2014
56
86
Total Floor Area
73 sq m
Current CO2 Emissions Level
3.9
Potential CO2 Emissions Level
0.9
CO2 per sq m per Year
54
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
1
Address
33 Mary Street
Date
30 May 2023
Current
Potential
70
90
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
30 May 2023
70
90
Total Floor Area
66 sq m
Current CO2 Emissions Level
2.7
Potential CO2 Emissions Level
0.8
CO2 per sq m per Year
42
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
1
Address
35 Mary Street
Date
11 Dec 2013
Current
Potential
66
86
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
11 Dec 2013
66
86
Total Floor Area
70 sq m
Current CO2 Emissions Level
2.8
Potential CO2 Emissions Level
0.9
CO2 per sq m per Year
40
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
1
Address
36 Mary Street
Date
27 Apr 2015
Current
Potential
61
87
Property Type
House
Built Form
Mid-Terrace
Constructed
before 1900
Certificate History
27 Apr 2015
61
87
Total Floor Area
69 sq m
Current CO2 Emissions Level
3.6
Potential CO2 Emissions Level
1.1
CO2 per sq m per Year
53
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
1
Address
37 Mary Street
Date
25 Feb 2015
Current
Potential
70
86
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
25 Feb 2015
70
86
Total Floor Area
74 sq m
Current CO2 Emissions Level
2.8
Potential CO2 Emissions Level
1.3
CO2 per sq m per Year
38
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
1
Address
38 Mary Street
Date
9 Aug 2010
Current
Potential
49
68
Property Type
House
Built Form
Mid-Terrace
Constructed
before 1900
Certificate History
9 Aug 2010
49
68
Total Floor Area
82 sq m
Current CO2 Emissions Level
5.0
Potential CO2 Emissions Level
3.1
CO2 per sq m per Year
77
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
2
Address
4 Mary Street
Date
23 Sep 2022
Current
Potential
42
88
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
23 Sep 2022
42
88
Total Floor Area
77 sq m
Current CO2 Emissions Level
5.0
Potential CO2 Emissions Level
2.6
CO2 per sq m per Year
65
Mains Gas Available
No
Habitable Rooms
3
Number of Extensions
1
Address
4 St Mary's Close, Mary Street
Date
21 Oct 2008
Current
Potential
80
82
Property Type
House
Built Form
Semi-Detached
Constructed
2007 onwards
Certificate History
21 Oct 2008
80
82
Total Floor Area
101 sq m
Current CO2 Emissions Level
2.0
Potential CO2 Emissions Level
1.9
CO2 per sq m per Year
24
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
42 MARY STREET
Date
18 May 2021
Current
Potential
55
90
Property Type
House
Built Form
End-Terrace
Constructed
1900-1929
Certificate History
18 May 2021
55
90
Total Floor Area
67 sq m
Current CO2 Emissions Level
4.6
Potential CO2 Emissions Level
0.9
CO2 per sq m per Year
69
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
1
Address
5 St. Mary's Close, Mary Street
Date
21 Oct 2008
Current
Potential
80
82
Property Type
House
Built Form
Semi-Detached
Constructed
2007 onwards
Certificate History
21 Oct 2008
80
82
Total Floor Area
101 sq m
Current CO2 Emissions Level
2.0
Potential CO2 Emissions Level
1.9
CO2 per sq m per Year
24
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
7 Mary Street
Date
2 Sep 2012
Current
Potential
60
87
Property Type
House
Built Form
Mid-Terrace
Constructed
before 1900
Certificate History
2 Sep 2012
60
87
Total Floor Area
69 sq m
Current CO2 Emissions Level
3.2
Potential CO2 Emissions Level
0.7
CO2 per sq m per Year
46
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
1
Address
Ashleigh, Mary Street
Date
9 Jul 2014
Current
Potential
65
79
Property Type
House
Built Form
Detached
Constructed
1983-1990
Certificate History
9 Jul 2014
65
79
Total Floor Area
165 sq m
Current CO2 Emissions Level
5.4
Potential CO2 Emissions Level
3.1
CO2 per sq m per Year
33
Mains Gas Available
Yes
Habitable Rooms
7
Number of Extensions
0
Address
St. Dyfrigs Church House, Mary Street
Date
24 Jan 2019
Current
Potential
44
86
Property Type
House
Built Form
Detached
Constructed
before 1900
Certificate History
24 Jan 2019
44
86
15 Oct 2008
56
73
Total Floor Area
54 sq m
Current CO2 Emissions Level
5.2
Potential CO2 Emissions Level
1.1
CO2 per sq m per Year
97
Mains Gas Available
Yes
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.