PROPERTY ENERGY EFFICIENCY CERTIFICATE DETAILS
Lock Street, MOUNTAIN ASH, CF45 4UH
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 Lock Street, CF45 4UH 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 Lock Street, MOUNTAIN ASH, CF45 4UH
Period Covered:
2008 - 31 January 2025
Address
Inspection Date
Current
Potential
Property Type
Built Form
Constructed
Address
12 Lock Street, Abercynon
Date
13 Oct 2015
Current
Potential
50
87
Property Type
House
Built Form
End-Terrace
Constructed
before 1900
Certificate History
13 Oct 2015
50
87
8 Mar 2013
56
85
Total Floor Area
84 sq m
Current CO2 Emissions Level
6.1
Potential CO2 Emissions Level
1.4
CO2 per sq m per Year
73
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
1
Address
16 Lock Street, Abercynon
Date
10 Apr 2024
Current
Potential
65
87
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
10 Apr 2024
65
87
Total Floor Area
72 sq m
Current CO2 Emissions Level
3.5
Potential CO2 Emissions Level
1.3
CO2 per sq m per Year
49
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
1
Address
22 Lock Street, Abercynon
Date
12 Jun 2013
Current
Potential
55
86
Property Type
House
Built Form
Semi-Detached
Constructed
1900-1929
Certificate History
12 Jun 2013
55
86
Total Floor Area
85 sq m
Current CO2 Emissions Level
4.6
Potential CO2 Emissions Level
1.1
CO2 per sq m per Year
54
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
1
Address
26 Lock Street, Abercynon
Date
18 Jun 2015
Current
Potential
51
84
Property Type
House
Built Form
Semi-Detached
Constructed
before 1900
Certificate History
18 Jun 2015
51
84
Total Floor Area
116 sq m
Current CO2 Emissions Level
7.7
Potential CO2 Emissions Level
2.5
CO2 per sq m per Year
66
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
1
Address
30 Lock Street, Abercynon
Date
26 Sep 2018
Current
Potential
58
82
Property Type
House
Built Form
Semi-Detached
Constructed
1900-1929
Certificate History
26 Sep 2018
58
82
23 Nov 2011
57
62
Total Floor Area
71 sq m
Current CO2 Emissions Level
4.4
Potential CO2 Emissions Level
2.0
CO2 per sq m per Year
62
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
1
Address
32 Lock Street, Abercynon
Date
23 Jan 2014
Current
Potential
37
78
Property Type
House
Built Form
Semi-Detached
Constructed
1900-1929
Certificate History
23 Jan 2014
37
78
Total Floor Area
86 sq m
Current CO2 Emissions Level
6.8
Potential CO2 Emissions Level
2.1
CO2 per sq m per Year
80
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
1
Address
34 Lock Street, Abercynon
Date
23 Apr 2016
Current
Potential
42
79
Property Type
House
Built Form
Semi-Detached
Constructed
before 1900
Certificate History
23 Apr 2016
42
79
5 Apr 2016
37
86
Total Floor Area
88 sq m
Current CO2 Emissions Level
7.0
Potential CO2 Emissions Level
2.4
CO2 per sq m per Year
79
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
1
Address
38 Lock Street, Abercynon
Date
17 Aug 2009
Current
Potential
42
56
Property Type
House
Built Form
Semi-Detached
Constructed
1900-1929
Certificate History
17 Aug 2009
42
56
Total Floor Area
80 sq m
Current CO2 Emissions Level
6.5
Potential CO2 Emissions Level
4.9
CO2 per sq m per Year
81
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
1
Address
40 Lock Street, Abercynon
Date
12 Jan 2009
Current
Potential
68
70
Property Type
House
Built Form
Semi-Detached
Constructed
1900-1929
Certificate History
12 Jan 2009
68
70
12 Jan 2009
69
69
12 Jan 2009
68
70
12 Jan 2009
69
69
Total Floor Area
81 sq m
Current CO2 Emissions Level
3.5
Potential CO2 Emissions Level
3.3
CO2 per sq m per Year
43
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
1
Address
42 Lock Street, Abercynon
Date
15 Jun 2014
Current
Potential
54
78
Property Type
House
Built Form
Semi-Detached
Constructed
1900-1929
Certificate History
15 Jun 2014
54
78
Total Floor Area
83 sq m
Current CO2 Emissions Level
4.7
Potential CO2 Emissions Level
2.0
CO2 per sq m per Year
56
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
1
Address
44 Lock Street, Abercynon
Date
8 Jul 2024
Current
Potential
42
88
Property Type
House
Built Form
Semi-Detached
Constructed
1900-1929
Certificate History
8 Jul 2024
42
88
Total Floor Area
84 sq m
Current CO2 Emissions Level
7.4
Potential CO2 Emissions Level
1.4
CO2 per sq m per Year
88
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
1
Address
53 Lock Street, Abercynon
Date
22 Feb 2015
Current
Potential
57
82
Property Type
House
Built Form
End-Terrace
Constructed
1900-1929
Certificate History
22 Feb 2015
57
82
Total Floor Area
96 sq m
Current CO2 Emissions Level
5.6
Potential CO2 Emissions Level
2.3
CO2 per sq m per Year
59
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
1
Address
54 Lock Street, Abercynon
Date
19 Jan 2012
Current
Potential
41
46
Property Type
House
Built Form
Semi-Detached
Constructed
1900-1929
Certificate History
19 Jan 2012
41
46
Total Floor Area
82 sq m
Current CO2 Emissions Level
7.7
Potential CO2 Emissions Level
7.0
CO2 per sq m per Year
75
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
1
Address
55 Lock Street, Abercynon
Date
5 Jan 2013
Current
Potential
59
85
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
5 Jan 2013
59
85
21 Jun 2023
66
82
Total Floor Area
109 sq m
Current CO2 Emissions Level
4.9
Potential CO2 Emissions Level
1.5
CO2 per sq m per Year
45
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
1
Address
56 Lock Street, Abercynon
Date
18 Aug 2013
Current
Potential
54
83
Property Type
House
Built Form
Semi-Detached
Constructed
1900-1929
Certificate History
18 Aug 2013
54
83
Total Floor Area
103 sq m
Current CO2 Emissions Level
5.4
Potential CO2 Emissions Level
1.7
CO2 per sq m per Year
53
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
1
Address
58 Lock Street, Abercynon
Date
1 Oct 2013
Current
Potential
53
80
Property Type
House
Built Form
Semi-Detached
Constructed
1900-1929
Certificate History
1 Oct 2013
53
80
Total Floor Area
125 sq m
Current CO2 Emissions Level
6.5
Potential CO2 Emissions Level
2.5
CO2 per sq m per Year
52
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
1
Address
59 Lock Street, Abercynon
Date
22 May 2016
Current
Potential
68
86
Property Type
House
Built Form
Mid-Terrace
Constructed
before 1900
Certificate History
22 May 2016
68
86
Total Floor Area
86 sq m
Current CO2 Emissions Level
3.7
Potential CO2 Emissions Level
1.6
CO2 per sq m per Year
43
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
1
Address
60 Lock Street, Abercynon
Date
8 Jan 2013
Current
Potential
62
87
Property Type
House
Built Form
Semi-Detached
Constructed
1900-1929
Certificate History
8 Jan 2013
62
87
Total Floor Area
83 sq m
Current CO2 Emissions Level
3.6
Potential CO2 Emissions Level
1.0
CO2 per sq m per Year
44
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
1
Address
65 Lock Street, Abercynon
Date
28 Jan 2014
Current
Potential
56
83
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
28 Jan 2014
56
83
16 Mar 2012
39
53
Total Floor Area
78 sq m
Current CO2 Emissions Level
4.2
Potential CO2 Emissions Level
1.3
CO2 per sq m per Year
54
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
1
Address
66 Lock Street, Abercynon
Date
13 Jul 2017
Current
Potential
58
86
Property Type
House
Built Form
Semi-Detached
Constructed
1900-1929
Certificate History
13 Jul 2017
58
86
Total Floor Area
82 sq m
Current CO2 Emissions Level
5.0
Potential CO2 Emissions Level
1.6
CO2 per sq m per Year
61
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
1
Address
67 Lock Street, Abercynon
Date
13 Jul 2014
Current
Potential
57
82
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
13 Jul 2014
57
82
Total Floor Area
95 sq m
Current CO2 Emissions Level
4.7
Potential CO2 Emissions Level
1.8
CO2 per sq m per Year
49
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
1
Address
70 Lock Street, Abercynon
Date
10 Oct 2013
Current
Potential
48
80
Property Type
House
Built Form
End-Terrace
Constructed
before 1900
Certificate History
10 Oct 2013
48
80
Total Floor Area
103 sq m
Current CO2 Emissions Level
6.1
Potential CO2 Emissions Level
2.0
CO2 per sq m per Year
60
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
1
Address
71 Lock Street, Abercynon
Date
11 Mar 2014
Current
Potential
60
88
Property Type
House
Built Form
Mid-Terrace
Constructed
before 1900
Certificate History
11 Mar 2014
60
88
Total Floor Area
80 sq m
Current CO2 Emissions Level
3.7
Potential CO2 Emissions Level
0.8
CO2 per sq m per Year
47
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
1
Address
72 Lock Street, Abercynon
Date
7 Mar 2015
Current
Potential
50
82
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
7 Mar 2015
50
82
Total Floor Area
82 sq m
Current CO2 Emissions Level
6.0
Potential CO2 Emissions Level
2.2
CO2 per sq m per Year
74
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
3
Address
82 Lock Street, Abercynon
Date
1 Nov 2013
Current
Potential
53
86
Property Type
House
Built Form
Semi-Detached
Constructed
1900-1929
Certificate History
1 Nov 2013
53
86
Total Floor Area
92 sq m
Current CO2 Emissions Level
4.9
Potential CO2 Emissions Level
1.1
CO2 per sq m per Year
54
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
1
Address
Brodawel, Lock Street
Date
20 Dec 2023
Current
Potential
55
72
Property Type
Bungalow
Built Form
Detached
Constructed
1967-1975
Certificate History
20 Dec 2023
55
72
Total Floor Area
113 sq m
Current CO2 Emissions Level
6.9
Potential CO2 Emissions Level
4.4
CO2 per sq m per Year
61
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
Cheriton, Lock Street
Date
24 May 2023
Current
Potential
61
80
Property Type
Bungalow
Built Form
Detached
Constructed
1967-1975
Certificate History
24 May 2023
61
80
Total Floor Area
104 sq m
Current CO2 Emissions Level
5.4
Potential CO2 Emissions Level
2.9
CO2 per sq m per Year
52
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
0
Address
Highcroft, Lock Street
Date
6 Oct 2008
Current
Potential
37
57
Property Type
House
Built Form
Detached
Constructed
1967-1975
Certificate History
6 Oct 2008
37
57
Total Floor Area
130 sq m
Current CO2 Emissions Level
10.0
Potential CO2 Emissions Level
7.7
CO2 per sq m per Year
67
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
1
Address
Lock House, Lock Street
Date
15 Apr 2010
Current
Potential
81
81
Property Type
House
Built Form
Detached
Constructed
N/A
Certificate History
15 Apr 2010
81
81
Total Floor Area
134 sq m
Current CO2 Emissions Level
2.8
Potential CO2 Emissions Level
2.7
CO2 per sq m per Year
21
Mains Gas Available
No
Habitable Rooms
0
Number of Extensions
0
Address
Pen-Y-Bryn Bungalow, Lock Street
Date
29 Dec 2022
Current
Potential
59
81
Property Type
Bungalow
Built Form
Detached
Constructed
1950-1966
Certificate History
29 Dec 2022
59
81
Total Floor Area
68 sq m
Current CO2 Emissions Level
3.9
Potential CO2 Emissions Level
1.7
CO2 per sq m per Year
57
Mains Gas Available
Yes
Habitable Rooms
4
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.