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PROPERTY ENERGY EFFICIENCY CERTIFICATE DETAILS
Heol Trelai, CARDIFF, CF5 5QQ

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 Trelai, CF5 5QQ 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 Trelai, CARDIFF, CF5 5QQ
Period Covered: 2008 - 31 January 2025

Address
Inspection Date
Current
Potential
Property Type
Built Form
Constructed
Address
400 Heol Trelai
Date
30 Nov 2023
Current
Potential
71
83
Property Type
House
Built Form
Semi-Detached
Constructed
1950-1966
+
Certificate History
30 Nov 2023
71
83
22 Sep 2014
64
83
Total Floor Area
108 sq m
Current CO2 Emissions Level
3.2
Potential CO2 Emissions Level
1.8
CO2 per sq m per Year
30
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
1
Address
406 Heol Trelai
Date
7 Jun 2010
Current
Potential
67
73
Property Type
House
Built Form
Semi-Detached
Constructed
1930-1949
+
Certificate History
7 Jun 2010
67
73
Total Floor Area
89 sq m
Current CO2 Emissions Level
3.8
Potential CO2 Emissions Level
3.1
CO2 per sq m per Year
42
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
408 Heol Trelai
Date
21 Oct 2014
Current
Potential
60
74
Property Type
House
Built Form
Semi-Detached
Constructed
1930-1949
+
Certificate History
21 Oct 2014
60
74
Total Floor Area
125 sq m
Current CO2 Emissions Level
5.3
Potential CO2 Emissions Level
3.3
CO2 per sq m per Year
42
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
2
Address
410 Heol Trelai
Date
5 Sep 2013
Current
Potential
64
87
Property Type
House
Built Form
Semi-Detached
Constructed
1950-1966
+
Certificate History
5 Sep 2013
64
87
Total Floor Area
89 sq m
Current CO2 Emissions Level
3.7
Potential CO2 Emissions Level
1.0
CO2 per sq m per Year
41
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
412 Heol Trelai
Date
31 Mar 2010
Current
Potential
70
73
Property Type
House
Built Form
Semi-Detached
Constructed
1950-1966
+
Certificate History
31 Mar 2010
70
73
Total Floor Area
88 sq m
Current CO2 Emissions Level
3.4
Potential CO2 Emissions Level
3.1
CO2 per sq m per Year
39
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
418 Heol Trelai
Date
3 Feb 2017
Current
Potential
68
84
Property Type
House
Built Form
Semi-Detached
Constructed
1950-1966
+
Certificate History
3 Feb 2017
68
84
1 Oct 2013
70
87
Total Floor Area
89 sq m
Current CO2 Emissions Level
3.0
Potential CO2 Emissions Level
1.2
CO2 per sq m per Year
34
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
420 Heol Trelai
Date
14 Apr 2009
Current
Potential
76
78
Property Type
Flat
Built Form
Semi-Detached
Constructed
1967-1975
+
Certificate History
14 Apr 2009
76
78
Total Floor Area
47 sq m
Current CO2 Emissions Level
1.8
Potential CO2 Emissions Level
1.8
CO2 per sq m per Year
39
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
422 Heol Trelai
Date
18 Jun 2018
Current
Potential
69
75
Property Type
Flat
Built Form
Semi-Detached
Constructed
1967-1975
+
Certificate History
18 Jun 2018
69
75
7 Oct 2008
78
79
Total Floor Area
49 sq m
Current CO2 Emissions Level
2.1
Potential CO2 Emissions Level
1.5
CO2 per sq m per Year
42
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
424 Heol Trelai
Date
9 Dec 2024
Current
Potential
70
73
Property Type
Flat
Built Form
Detached
Constructed
1950-1966
+
Certificate History
9 Dec 2024
70
73
8 Oct 2008
69
78
Total Floor Area
49 sq m
Current CO2 Emissions Level
2.0
Potential CO2 Emissions Level
1.7
CO2 per sq m per Year
40
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
426 Heol Trelai
Date
16 Oct 2016
Current
Potential
75
77
Property Type
Flat
Built Form
Semi-Detached
Constructed
1950-1966
+
Certificate History
16 Oct 2016
75
77
Total Floor Area
46 sq m
Current CO2 Emissions Level
1.4
Potential CO2 Emissions Level
1.3
CO2 per sq m per Year
30
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
428 Heol Trelai
Date
21 Sep 2011
Current
Potential
69
75
Property Type
Flat
Built Form
End-Terrace
Constructed
1950-1966
+
Certificate History
21 Sep 2011
69
75
Total Floor Area
48 sq m
Current CO2 Emissions Level
2.0
Potential CO2 Emissions Level
1.5
CO2 per sq m per Year
41
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
430 Heol Trelai
Date
15 Nov 2024
Current
Potential
67
73
Property Type
Flat
Built Form
Detached
Constructed
1950-1966
+
Certificate History
15 Nov 2024
67
73
6 Oct 2014
68
77
Total Floor Area
49 sq m
Current CO2 Emissions Level
2.2
Potential CO2 Emissions Level
1.7
CO2 per sq m per Year
45
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
432 Heol Trelai
Date
4 Jul 2018
Current
Potential
69
70
Property Type
Flat
Built Form
Detached
Constructed
1967-1975
+
Certificate History
4 Jul 2018
69
70
Total Floor Area
48 sq m
Current CO2 Emissions Level
2.0
Potential CO2 Emissions Level
1.9
CO2 per sq m per Year
42
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
436 Heol Trelai
Date
20 Apr 2009
Current
Potential
76
80
Property Type
Flat
Built Form
End-Terrace
Constructed
1967-1975
+
Certificate History
20 Apr 2009
76
80
Total Floor Area
49 sq m
Current CO2 Emissions Level
1.9
Potential CO2 Emissions Level
1.6
CO2 per sq m per Year
39
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
438 Heol Trelai
Date
26 Oct 2010
Current
Potential
78
80
Property Type
Flat
Built Form
End-Terrace
Constructed
1967-1975
+
Certificate History
26 Oct 2010
78
80
Total Floor Area
47 sq m
Current CO2 Emissions Level
1.7
Potential CO2 Emissions Level
1.5
CO2 per sq m per Year
36
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
440 Heol Trelai
Date
18 Jun 2017
Current
Potential
70
76
Property Type
Flat
Built Form
Semi-Detached
Constructed
1950-1966
+
Certificate History
18 Jun 2017
70
76
18 Jun 2017
63
76
18 Jun 2017
75
76
10 Mar 2009
75
84
Total Floor Area
49 sq m
Current CO2 Emissions Level
1.9
Potential CO2 Emissions Level
1.4
CO2 per sq m per Year
39
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
442 Heol Trelai
Date
25 Aug 2022
Current
Potential
75
77
Property Type
Flat
Built Form
Semi-Detached
Constructed
1950-1966
+
Certificate History
25 Aug 2022
75
77
26 Oct 2009
80
83
Total Floor Area
49 sq m
Current CO2 Emissions Level
1.5
Potential CO2 Emissions Level
1.3
CO2 per sq m per Year
31
Mains Gas Available
Yes
Habitable Rooms
2
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.