PROPERTY ENERGY EFFICIENCY CERTIFICATE DETAILS
Constellation Street, CARDIFF, CF24 0HN
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 Constellation Street, CF24 0HN 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 Constellation Street, CARDIFF, CF24 0HN
Period Covered:
2008 - 31 January 2025
Address
Inspection Date
Current
Potential
Property Type
Built Form
Constructed
Address
12 Constellation Street
Date
22 May 2012
Current
Potential
66
85
Property Type
House
Built Form
Mid-Terrace
Constructed
before 1900
Certificate History
22 May 2012
66
85
Total Floor Area
112 sq m
Current CO2 Emissions Level
4.0
Potential CO2 Emissions Level
1.6
CO2 per sq m per Year
36
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
2
Address
14 Constellation Street
Date
23 Jul 2013
Current
Potential
56
83
Property Type
House
Built Form
Mid-Terrace
Constructed
before 1900
Certificate History
23 Jul 2013
56
83
Total Floor Area
103 sq m
Current CO2 Emissions Level
5.5
Potential CO2 Emissions Level
1.9
CO2 per sq m per Year
54
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
1
Address
18 Constellation Street
Date
31 May 2012
Current
Potential
55
75
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
31 May 2012
55
75
Total Floor Area
109 sq m
Current CO2 Emissions Level
5.4
Potential CO2 Emissions Level
2.9
CO2 per sq m per Year
50
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
2
Address
2 Constellation Street, Adamsdown
Date
27 Jan 2025
Current
Potential
41
70
Property Type
Flat
Built Form
End-Terrace
Constructed
1900-1929
Certificate History
27 Jan 2025
41
70
Total Floor Area
89 sq m
Current CO2 Emissions Level
6.8
Potential CO2 Emissions Level
3.0
CO2 per sq m per Year
76
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
20 Constellation Street
Date
29 Jun 2010
Current
Potential
50
62
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
29 Jun 2010
50
62
Total Floor Area
101 sq m
Current CO2 Emissions Level
6.5
Potential CO2 Emissions Level
4.9
CO2 per sq m per Year
64
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
0
Address
22 Constellation Street
Date
18 Jun 2020
Current
Potential
24
69
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
18 Jun 2020
24
69
Total Floor Area
103 sq m
Current CO2 Emissions Level
10.0
Potential CO2 Emissions Level
3.7
CO2 per sq m per Year
100
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
2
Address
26 Constellation Street
Date
25 Apr 2018
Current
Potential
66
86
Property Type
House
Built Form
Mid-Terrace
Constructed
before 1900
Certificate History
25 Apr 2018
66
86
15 May 2012
41
71
Total Floor Area
106 sq m
Current CO2 Emissions Level
4.0
Potential CO2 Emissions Level
1.4
CO2 per sq m per Year
37
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
2
Address
28a Constellation Street
Date
14 Aug 2022
Current
Potential
70
77
Property Type
Flat
Built Form
Enclosed End-Terrace
Constructed
1900-1929
Certificate History
14 Aug 2022
70
77
30 Apr 2009
72
72
Total Floor Area
37 sq m
Current CO2 Emissions Level
1.5
Potential CO2 Emissions Level
1.0
CO2 per sq m per Year
42
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
28b Constellation Street
Date
14 Aug 2022
Current
Potential
75
79
Property Type
Flat
Built Form
Enclosed End-Terrace
Constructed
1900-1929
Certificate History
14 Aug 2022
75
79
Total Floor Area
80 sq m
Current CO2 Emissions Level
2.2
Potential CO2 Emissions Level
1.7
CO2 per sq m per Year
27
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
28c Constellation Street
Date
24 Sep 2023
Current
Potential
73
90
Property Type
House
Built Form
Semi-Detached
Constructed
before 1900
Certificate History
24 Sep 2023
73
90
7 Aug 2018
64
89
Total Floor Area
43 sq m
Current CO2 Emissions Level
1.5
Potential CO2 Emissions Level
0.3
CO2 per sq m per Year
34
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
1
Address
30 Constellation Street
Date
4 Jan 2018
Current
Potential
74
79
Property Type
Flat
Built Form
Semi-Detached
Constructed
1976-1982
Certificate History
4 Jan 2018
74
79
Total Floor Area
74 sq m
Current CO2 Emissions Level
2.1
Potential CO2 Emissions Level
1.6
CO2 per sq m per Year
28
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
32 Constellation Street
Date
4 Jan 2018
Current
Potential
78
82
Property Type
Flat
Built Form
Semi-Detached
Constructed
1976-1982
Certificate History
4 Jan 2018
78
82
6 Feb 2017
70
76
2 Feb 2009
63
78
Total Floor Area
74 sq m
Current CO2 Emissions Level
1.6
Potential CO2 Emissions Level
1.3
CO2 per sq m per Year
22
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
34 Constellation Street
Date
8 Mar 2018
Current
Potential
73
77
Property Type
Flat
Built Form
Detached
Constructed
1976-1982
Certificate History
8 Mar 2018
73
77
Total Floor Area
74 sq m
Current CO2 Emissions Level
2.1
Potential CO2 Emissions Level
1.7
CO2 per sq m per Year
28
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
38 Constellation Street
Date
7 Dec 2010
Current
Potential
78
82
Property Type
Flat
Built Form
Semi-Detached
Constructed
1983-1990
Certificate History
7 Dec 2010
78
82
Total Floor Area
75 sq m
Current CO2 Emissions Level
2.1
Potential CO2 Emissions Level
1.8
CO2 per sq m per Year
28
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
4 Constellation Street
Date
7 Dec 2021
Current
Potential
56
76
Property Type
House
Built Form
Mid-Terrace
Constructed
before 1900
Certificate History
7 Dec 2021
56
76
10 Mar 2020
65
85
13 Aug 2012
50
85
Total Floor Area
118 sq m
Current CO2 Emissions Level
5.7
Potential CO2 Emissions Level
3.0
CO2 per sq m per Year
49
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
1
Address
40 Constellation Street
Date
12 Feb 2019
Current
Potential
65
69
Property Type
Flat
Built Form
Detached
Constructed
1967-1975
Certificate History
12 Feb 2019
65
69
Total Floor Area
74 sq m
Current CO2 Emissions Level
3.1
Potential CO2 Emissions Level
2.6
CO2 per sq m per Year
42
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
6 Constellation Street
Date
29 Sep 2010
Current
Potential
57
59
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
29 Sep 2010
57
59
Total Floor Area
116 sq m
Current CO2 Emissions Level
6.0
Potential CO2 Emissions Level
5.8
CO2 per sq m per Year
51
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
2
Address
8 Constellation Street
Date
19 Nov 2015
Current
Potential
78
89
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
19 Nov 2015
78
89
Total Floor Area
108 sq m
Current CO2 Emissions Level
2.6
Potential CO2 Emissions Level
1.0
CO2 per sq m per Year
24
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
First Floor Flat, 10 Constellation Street
Date
17 Feb 2020
Current
Potential
58
69
Property Type
Flat
Built Form
Mid-Terrace
Constructed
before 1900
Certificate History
17 Feb 2020
58
69
Total Floor Area
50 sq m
Current CO2 Emissions Level
3.0
Potential CO2 Emissions Level
2.1
CO2 per sq m per Year
60
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
1
Address
Flat 1 , 16 Constellation Street
Date
22 Dec 2023
Current
Potential
72
79
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
22 Dec 2023
72
79
Total Floor Area
69 sq m
Current CO2 Emissions Level
2.2
Potential CO2 Emissions Level
1.5
CO2 per sq m per Year
33
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
2
Address
Flat 2, 16 Constellation Street
Date
8 Jun 2017
Current
Potential
74
79
Property Type
Maisonette
Built Form
Enclosed Mid-Terrace
Constructed
1900-1929
Certificate History
8 Jun 2017
74
79
Total Floor Area
48 sq m
Current CO2 Emissions Level
1.5
Potential CO2 Emissions Level
1.1
CO2 per sq m per Year
31
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
1
Address
Flat 3, 16 Constellation Street
Date
22 Dec 2023
Current
Potential
78
81
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
22 Dec 2023
78
81
Total Floor Area
35 sq m
Current CO2 Emissions Level
1.0
Potential CO2 Emissions Level
0.7
CO2 per sq m per Year
27
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
1
Address
Ground Floor Flat, 10 Constellation Street
Date
22 Dec 2010
Current
Potential
59
69
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
22 Dec 2010
59
69
24 Nov 2023
67
73
Total Floor Area
53 sq m
Current CO2 Emissions Level
3.4
Potential CO2 Emissions Level
2.6
CO2 per sq m per Year
65
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
1
Address
Ground Floor Flat, 24 Constellation Street
Date
29 Jan 2019
Current
Potential
63
76
Property Type
Flat
Built Form
Mid-Terrace
Constructed
before 1900
Certificate History
29 Jan 2019
63
76
Total Floor Area
45 sq m
Current CO2 Emissions Level
2.4
Potential CO2 Emissions Level
1.3
CO2 per sq m per Year
53
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
1
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.