PROPERTY ENERGY EFFICIENCY CERTIFICATE DETAILS
Dover Street, MOUNTAIN ASH, CF45 3HY

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 Dover Street, CF45 3HY 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 Dover Street, MOUNTAIN ASH, CF45 3HY
Period Covered: 2008 - 31 January 2025

Address
Inspection Date
Current
Potential
Property Type
Built Form
Constructed
Address
10 Dover Street
Date
22 Jun 2017
Current
Potential
69
89
Property Type
House
Built Form
Mid-Terrace
Constructed
before 1900
+
Certificate History
22 Jun 2017
69
89
Total Floor Area
69 sq m
Current CO2 Emissions Level
3.0
Potential CO2 Emissions Level
1.0
CO2 per sq m per Year
43
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
2
Address
13 DOVER STREET, MOUNTAIN ASH
Date
20 Jan 2021
Current
Potential
55
85
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
+
Certificate History
20 Jan 2021
55
85
Total Floor Area
67 sq m
Current CO2 Emissions Level
4.5
Potential CO2 Emissions Level
1.4
CO2 per sq m per Year
68
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
1
Address
14 Dover Street
Date
8 Dec 2011
Current
Potential
59
69
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
+
Certificate History
8 Dec 2011
59
69
Total Floor Area
57 sq m
Current CO2 Emissions Level
3.3
Potential CO2 Emissions Level
2.3
CO2 per sq m per Year
57
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
2 Dover Street
Date
18 Nov 2025
Current
Potential
71
84
Property Type
House
Built Form
Semi-Detached
Constructed
1900-1929
+
Certificate History
18 Nov 2025
71
84
Total Floor Area
116 sq m
Current CO2 Emissions Level
5.5
Potential CO2 Emissions Level
3.3
CO2 per sq m per Year
48
Mains Gas Available
Yes
Habitable Rooms
7
Number of Extensions
1
Address
2a Dover Street
Date
25 Jan 2012
Current
Potential
40
55
Property Type
House
Built Form
Semi-Detached
Constructed
1900-1929
+
Certificate History
25 Jan 2012
40
55
Total Floor Area
79 sq m
Current CO2 Emissions Level
6.5
Potential CO2 Emissions Level
4.6
CO2 per sq m per Year
81
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
4 Dover Street
Date
21 Mar 2025
Current
Potential
77
91
Property Type
House
Built Form
Mid-Terrace
Constructed
before 1900
+
Certificate History
21 Mar 2025
77
91
14 Jun 2013
68
89
15 Oct 2008
68
76
Total Floor Area
57 sq m
Current CO2 Emissions Level
1.7
Potential CO2 Emissions Level
0.6
CO2 per sq m per Year
30
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
1
Address
5 Dover Street
Date
23 Jul 2014
Current
Potential
71
86
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
+
Certificate History
23 Jul 2014
71
86
Total Floor Area
86 sq m
Current CO2 Emissions Level
2.7
Potential CO2 Emissions Level
1.1
CO2 per sq m per Year
31
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
1
Address
6 Dover Street
Date
19 Jun 2024
Current
Potential
72
91
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
+
Certificate History
19 Jun 2024
72
91
26 Feb 2014
66
92
16 Oct 2008
67
76
Total Floor Area
61 sq m
Current CO2 Emissions Level
2.3
Potential CO2 Emissions Level
0.7
CO2 per sq m per Year
38
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
1
Address
7 Dover Street
Date
10 Dec 2018
Current
Potential
71
84
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
+
Certificate History
10 Dec 2018
71
84
14 Oct 2008
75
79
Total Floor Area
63 sq m
Current CO2 Emissions Level
2.6
Potential CO2 Emissions Level
1.5
CO2 per sq m per Year
41
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
1
Address
8 Dover Street
Date
15 Dec 2017
Current
Potential
73
89
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
+
Certificate History
15 Dec 2017
73
89
Total Floor Area
69 sq m
Current CO2 Emissions Level
2.4
Potential CO2 Emissions Level
0.9
CO2 per sq m per Year
34
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
1
Address
9 Dover Street
Date
14 Oct 2008
Current
Potential
74
81
Property Type
House
Built Form
Mid-Terrace
Constructed
before 1900
+
Certificate History
14 Oct 2008
74
81
Total Floor Area
58 sq m
Current CO2 Emissions Level
2.3
Potential CO2 Emissions Level
1.7
CO2 per sq m per Year
40
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
9 DOVER STREET, MOUNTAIN ASH
Date
17 May 2021
Current
Potential
74
90
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
+
Certificate History
17 May 2021
74
90
Total Floor Area
53 sq m
Current CO2 Emissions Level
2.0
Potential CO2 Emissions Level
0.7
CO2 per sq m per Year
37
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
Aberpennar Cottage, Dover Street
Date
1 Apr 2019
Current
Potential
48
85
Property Type
House
Built Form
Detached
Constructed
before 1900
+
Certificate History
1 Apr 2019
48
85
Total Floor Area
96 sq m
Current CO2 Emissions Level
7.0
Potential CO2 Emissions Level
1.9
CO2 per sq m per Year
73
Mains Gas Available
Yes
Habitable Rooms
4
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.