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PROPERTY ENERGY EFFICIENCY CERTIFICATE DETAILS
Heol Dolwen, CARDIFF, CF14 1RX

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 Heol Dolwen, CF14 1RX 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 Heol Dolwen, CARDIFF, CF14 1RX
Period Covered: 2008 - 31 January 2025

Address
Inspection Date
Current
Potential
Property Type
Built Form
Constructed
Address
1 Heol Dolwen
Date
30 Aug 2012
Current
Potential
68
81
Property Type
Bungalow
Built Form
Semi-Detached
Constructed
1950-1966
+
Certificate History
30 Aug 2012
68
81
Total Floor Area
125 sq m
Current CO2 Emissions Level
3.8
Potential CO2 Emissions Level
2.0
CO2 per sq m per Year
30
Mains Gas Available
Yes
Habitable Rooms
7
Number of Extensions
1
Address
10 Heol Dolwen
Date
13 Jul 2011
Current
Potential
34
62
Property Type
Bungalow
Built Form
Detached
Constructed
1930-1949
+
Certificate History
13 Jul 2011
34
62
Total Floor Area
73 sq m
Current CO2 Emissions Level
7.0
Potential CO2 Emissions Level
3.6
CO2 per sq m per Year
96
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
12 Heol Dolwen
Date
3 Sep 2018
Current
Potential
50
79
Property Type
Bungalow
Built Form
Semi-Detached
Constructed
1967-1975
+
Certificate History
3 Sep 2018
50
79
Total Floor Area
83 sq m
Current CO2 Emissions Level
5.3
Potential CO2 Emissions Level
2.1
CO2 per sq m per Year
64
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
1
Address
18 Heol Dolwen
Date
28 Sep 2017
Current
Potential
65
84
Property Type
Bungalow
Built Form
Detached
Constructed
1930-1949
+
Certificate History
28 Sep 2017
65
84
Total Floor Area
89 sq m
Current CO2 Emissions Level
3.7
Potential CO2 Emissions Level
1.4
CO2 per sq m per Year
41
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
22 Heol Dolwen
Date
24 Aug 2009
Current
Potential
67
69
Property Type
Bungalow
Built Form
Detached
Constructed
1930-1949
+
Certificate History
24 Aug 2009
67
69
Total Floor Area
84 sq m
Current CO2 Emissions Level
4.6
Potential CO2 Emissions Level
4.5
CO2 per sq m per Year
38
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
1
Address
23 Heol Dolwen
Date
31 May 2010
Current
Potential
39
63
Property Type
Bungalow
Built Form
Semi-Detached
Constructed
1930-1949
+
Certificate History
31 May 2010
39
63
Total Floor Area
84 sq m
Current CO2 Emissions Level
7.5
Potential CO2 Emissions Level
4.3
CO2 per sq m per Year
84
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
0
Address
26 Heol Dolwen
Date
22 Apr 2019
Current
Potential
77
89
Property Type
Bungalow
Built Form
Semi-Detached
Constructed
N/A
+
Certificate History
22 Apr 2019
77
89
31 Oct 2017
65
84
Total Floor Area
83 sq m
Current CO2 Emissions Level
2.0
Potential CO2 Emissions Level
0.8
CO2 per sq m per Year
24
Mains Gas Available
No
Habitable Rooms
0
Number of Extensions
0
Address
27 Heol Dolwen
Date
3 Jun 2010
Current
Potential
54
59
Property Type
Bungalow
Built Form
Semi-Detached
Constructed
1950-1966
+
Certificate History
3 Jun 2010
54
59
Total Floor Area
66 sq m
Current CO2 Emissions Level
4.5
Potential CO2 Emissions Level
4.1
CO2 per sq m per Year
68
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
28 Heol Dolwen
Date
22 Apr 2019
Current
Potential
77
89
Property Type
Bungalow
Built Form
Semi-Detached
Constructed
N/A
+
Certificate History
22 Apr 2019
77
89
Total Floor Area
85 sq m
Current CO2 Emissions Level
2.0
Potential CO2 Emissions Level
0.8
CO2 per sq m per Year
23
Mains Gas Available
No
Habitable Rooms
0
Number of Extensions
0
Address
29 Heol Dolwen
Date
29 Jan 2013
Current
Potential
63
79
Property Type
Bungalow
Built Form
Detached
Constructed
1930-1949
+
Certificate History
29 Jan 2013
63
79
Total Floor Area
88 sq m
Current CO2 Emissions Level
3.5
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
3 Heol Dolwen
Date
20 May 2015
Current
Potential
64
86
Property Type
Bungalow
Built Form
Semi-Detached
Constructed
1930-1949
+
Certificate History
20 May 2015
64
86
Total Floor Area
67 sq m
Current CO2 Emissions Level
3.0
Potential CO2 Emissions Level
1.0
CO2 per sq m per Year
45
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
35 Heol Dolwen
Date
18 Jun 2024
Current
Potential
61
85
Property Type
Bungalow
Built Form
Detached
Constructed
1950-1966
+
Certificate History
18 Jun 2024
61
85
Total Floor Area
74 sq m
Current CO2 Emissions Level
3.6
Potential CO2 Emissions Level
1.2
CO2 per sq m per Year
49
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
37 Heol Dolwen
Date
1 Apr 2019
Current
Potential
65
85
Property Type
Bungalow
Built Form
Detached
Constructed
1950-1966
+
Certificate History
1 Apr 2019
65
85
Total Floor Area
71 sq m
Current CO2 Emissions Level
3.1
Potential CO2 Emissions Level
1.2
CO2 per sq m per Year
43
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
41 Heol Dolwen
Date
18 Jan 2019
Current
Potential
79
88
Property Type
Bungalow
Built Form
Semi-Detached
Constructed
N/A
+
Certificate History
18 Jan 2019
79
88
28 Aug 2017
52
67
Total Floor Area
121 sq m
Current CO2 Emissions Level
2.4
Potential CO2 Emissions Level
1.2
CO2 per sq m per Year
20
Mains Gas Available
No
Habitable Rooms
0
Number of Extensions
0
Address
43 Heol Dolwen
Date
18 Jan 2019
Current
Potential
77
88
Property Type
Bungalow
Built Form
Semi-Detached
Constructed
N/A
+
Certificate History
18 Jan 2019
77
88
Total Floor Area
86 sq m
Current CO2 Emissions Level
2.1
Potential CO2 Emissions Level
0.9
CO2 per sq m per Year
25
Mains Gas Available
No
Habitable Rooms
0
Number of Extensions
0
Address
7 Heol Dolwen
Date
22 Mar 2013
Current
Potential
62
75
Property Type
Bungalow
Built Form
Semi-Detached
Constructed
1930-1949
+
Certificate History
22 Mar 2013
62
75
Total Floor Area
88 sq m
Current CO2 Emissions Level
3.8
Potential CO2 Emissions Level
2.4
CO2 per sq m per Year
43
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
8 Heol Dolwen
Date
27 Feb 2023
Current
Potential
39
77
Property Type
Bungalow
Built Form
Detached
Constructed
1930-1949
+
Certificate History
27 Feb 2023
39
77
Total Floor Area
134 sq m
Current CO2 Emissions Level
9.6
Potential CO2 Emissions Level
3.2
CO2 per sq m per Year
71
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
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.