PROPERTY ENERGY EFFICIENCY CERTIFICATE DETAILS
St. Helens Avenue, SWANSEA, SA1 4NN

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 St. Helens Avenue, SA1 4NN 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 St. Helens Avenue, SWANSEA, SA1 4NN
Period Covered: 2008 - 31 January 2025

Address
Inspection Date
Current
Potential
Property Type
Built Form
Constructed
Address
100 St. Helens Avenue
Date
13 Oct 2009
Current
Potential
69
73
Property Type
House
Built Form
Mid-Terrace
Constructed
before 1900
+
Certificate History
13 Oct 2009
69
73
Total Floor Area
87 sq m
Current CO2 Emissions Level
3.5
Potential CO2 Emissions Level
3.1
CO2 per sq m per Year
40
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
1
Address
71 St. Helens Avenue
Date
7 Oct 2013
Current
Potential
69
79
Property Type
Maisonette
Built Form
Mid-Terrace
Constructed
1900-1929
+
Certificate History
7 Oct 2013
69
79
Total Floor Area
75 sq m
Current CO2 Emissions Level
2.6
Potential CO2 Emissions Level
1.5
CO2 per sq m per Year
35
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
71a St. Helens Avenue
Date
19 Nov 2018
Current
Potential
75
77
Property Type
Flat
Built Form
Mid-Terrace
Constructed
before 1900
+
Certificate History
19 Nov 2018
75
77
18 Feb 2016
74
77
28 Sep 2013
72
75
Total Floor Area
66 sq m
Current CO2 Emissions Level
1.7
Potential CO2 Emissions Level
1.6
CO2 per sq m per Year
26
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
72 St. Helens Avenue
Date
25 Jul 2018
Current
Potential
76
90
Property Type
House
Built Form
Mid-Terrace
Constructed
before 1900
+
Certificate History
25 Jul 2018
76
90
23 Sep 2013
66
78
Total Floor Area
69 sq m
Current CO2 Emissions Level
1.7
Potential CO2 Emissions Level
0.5
CO2 per sq m per Year
25
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
72a St. Helens Avenue
Date
3 Dec 2014
Current
Potential
71
71
Property Type
Maisonette
Built Form
Mid-Terrace
Constructed
1900-1929
+
Certificate History
3 Dec 2014
71
71
23 Sep 2013
54
71
Total Floor Area
77 sq m
Current CO2 Emissions Level
2.5
Potential CO2 Emissions Level
2.5
CO2 per sq m per Year
32
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
73 St. Helens Avenue
Date
7 Feb 2024
Current
Potential
63
87
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
+
Certificate History
7 Feb 2024
63
87
14 May 2013
49
75
Total Floor Area
116 sq m
Current CO2 Emissions Level
4.6
Potential CO2 Emissions Level
1.2
CO2 per sq m per Year
39
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
74 St. Helens Avenue
Date
10 Oct 2022
Current
Potential
51
77
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1900-1929
+
Certificate History
10 Oct 2022
51
77
30 Aug 2011
42
49
Total Floor Area
97 sq m
Current CO2 Emissions Level
5.1
Potential CO2 Emissions Level
2.2
CO2 per sq m per Year
52
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
75 ST. HELENS AVENUE
Date
15 Jun 2021
Current
Potential
74
85
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
+
Certificate History
15 Jun 2021
74
85
Total Floor Area
119 sq m
Current CO2 Emissions Level
3.0
Potential CO2 Emissions Level
1.6
CO2 per sq m per Year
25
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
1
Address
75 St. Helens Avenue
Date
9 Apr 2020
Current
Potential
49
84
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
+
Certificate History
9 Apr 2020
49
84
28 Jul 2009
46
67
Total Floor Area
102 sq m
Current CO2 Emissions Level
6.2
Potential CO2 Emissions Level
1.5
CO2 per sq m per Year
60
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
1
Address
76 St. Helens Avenue
Date
15 Nov 2023
Current
Potential
63
84
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
+
Certificate History
15 Nov 2023
63
84
10 Oct 2011
45
61
Total Floor Area
104 sq m
Current CO2 Emissions Level
4.2
Potential CO2 Emissions Level
1.6
CO2 per sq m per Year
40
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
2
Address
76a St. Helens Avenue
Date
15 Mar 2016
Current
Potential
81
95
Property Type
House
Built Form
Detached
Constructed
N/A
+
Certificate History
15 Mar 2016
81
95
Total Floor Area
62 sq m
Current CO2 Emissions Level
1.1
Potential CO2 Emissions Level
-0.1
CO2 per sq m per Year
17
Mains Gas Available
No
Habitable Rooms
0
Number of Extensions
0
Address
76b St. Helens Avenue
Date
15 Mar 2016
Current
Potential
83
83
Property Type
Flat
Built Form
Semi-Detached
Constructed
N/A
+
Certificate History
15 Mar 2016
83
83
Total Floor Area
55 sq m
Current CO2 Emissions Level
0.9
Potential CO2 Emissions Level
0.9
CO2 per sq m per Year
16
Mains Gas Available
No
Habitable Rooms
0
Number of Extensions
0
Address
76c St. Helens Avenue
Date
15 Mar 2016
Current
Potential
83
83
Property Type
Flat
Built Form
Semi-Detached
Constructed
N/A
+
Certificate History
15 Mar 2016
83
83
Total Floor Area
62 sq m
Current CO2 Emissions Level
1.0
Potential CO2 Emissions Level
1.0
CO2 per sq m per Year
16
Mains Gas Available
No
Habitable Rooms
0
Number of Extensions
0
Address
77 St. Helens Avenue
Date
29 Nov 2013
Current
Potential
66
75
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1930-1949
+
Certificate History
29 Nov 2013
66
75
7 Dec 2009
53
72
Total Floor Area
77 sq m
Current CO2 Emissions Level
3.0
Potential CO2 Emissions Level
2.1
CO2 per sq m per Year
39
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
3
Address
77a St. Helens Avenue
Date
18 Mar 2016
Current
Potential
73
74
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1900-1929
+
Certificate History
18 Mar 2016
73
74
22 Jan 2014
61
65
Total Floor Area
51 sq m
Current CO2 Emissions Level
1.6
Potential CO2 Emissions Level
1.5
CO2 per sq m per Year
32
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
1
Address
77b St. Helens Avenue
Date
10 Dec 2009
Current
Potential
53
72
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1900-1929
+
Certificate History
10 Dec 2009
53
72
Total Floor Area
80 sq m
Current CO2 Emissions Level
4.8
Potential CO2 Emissions Level
2.8
CO2 per sq m per Year
67
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
78 St. Helens Avenue
Date
18 Nov 2024
Current
Potential
49
73
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
+
Certificate History
18 Nov 2024
49
73
16 Jun 2014
62
76
16 Jun 2014
57
76
1 Feb 2011
66
72
Total Floor Area
113 sq m
Current CO2 Emissions Level
5.9
Potential CO2 Emissions Level
2.9
CO2 per sq m per Year
52
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
2
Address
79 St. Helens Avenue
Date
17 Nov 2015
Current
Potential
62
82
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
+
Certificate History
17 Nov 2015
62
82
4 Feb 2009
53
67
Total Floor Area
98 sq m
Current CO2 Emissions Level
4.1
Potential CO2 Emissions Level
1.8
CO2 per sq m per Year
42
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
2
Address
80 ST HELENS AVENUE, BRYNMILL
Date
8 Oct 2020
Current
Potential
61
85
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
+
Certificate History
8 Oct 2020
61
85
Total Floor Area
120 sq m
Current CO2 Emissions Level
4.9
Potential CO2 Emissions Level
1.6
CO2 per sq m per Year
41
Mains Gas Available
Yes
Habitable Rooms
8
Number of Extensions
2
Address
80a St. Helens Avenue
Date
5 Apr 2023
Current
Potential
78
78
Property Type
Flat
Built Form
Detached
Constructed
2012 onwards
+
Certificate History
5 Apr 2023
78
78
27 Oct 2012
81
81
Total Floor Area
50 sq m
Current CO2 Emissions Level
1.2
Potential CO2 Emissions Level
1.2
CO2 per sq m per Year
24
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
80b St. Helens Avenue
Date
31 Oct 2012
Current
Potential
83
83
Property Type
Flat
Built Form
Detached
Constructed
N/A
+
Certificate History
31 Oct 2012
83
83
Total Floor Area
125 sq m
Current CO2 Emissions Level
2.0
Potential CO2 Emissions Level
2.0
CO2 per sq m per Year
16
Mains Gas Available
No
Habitable Rooms
0
Number of Extensions
0
Address
81 St. Helens Avenue
Date
28 Nov 2018
Current
Potential
60
75
Property Type
House
Built Form
Mid-Terrace
Constructed
1930-1949
+
Certificate History
28 Nov 2018
60
75
Total Floor Area
103 sq m
Current CO2 Emissions Level
4.6
Potential CO2 Emissions Level
2.8
CO2 per sq m per Year
45
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
1
Address
82 St. Helens Avenue
Date
9 Jan 2023
Current
Potential
60
77
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
+
Certificate History
9 Jan 2023
60
77
9 Jan 2023
65
81
1 Jun 2015
46
81
Total Floor Area
114 sq m
Current CO2 Emissions Level
4.9
Potential CO2 Emissions Level
2.7
CO2 per sq m per Year
43
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
2
Address
83 St. Helens Avenue
Date
2 Feb 2015
Current
Potential
69
85
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
+
Certificate History
2 Feb 2015
69
85
Total Floor Area
114 sq m
Current CO2 Emissions Level
3.6
Potential CO2 Emissions Level
1.6
CO2 per sq m per Year
31
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
1
Address
86 St. Helens Avenue
Date
18 Apr 2022
Current
Potential
64
85
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
+
Certificate History
18 Apr 2022
64
85
Total Floor Area
100 sq m
Current CO2 Emissions Level
3.9
Potential CO2 Emissions Level
1.3
CO2 per sq m per Year
39
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
2
Address
87 ST HELENS AVENUE, BRYNMILL
Date
24 Sep 2020
Current
Potential
61
73
Property Type
Flat
Built Form
Mid-Terrace
Constructed
before 1900
+
Certificate History
24 Sep 2020
61
73
Total Floor Area
84 sq m
Current CO2 Emissions Level
3.8
Potential CO2 Emissions Level
2.4
CO2 per sq m per Year
46
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
1
Address
88a St. Helens Avenue
Date
3 Oct 2018
Current
Potential
73
87
Property Type
Bungalow
Built Form
Detached
Constructed
2003-2006
+
Certificate History
3 Oct 2018
73
87
Total Floor Area
76 sq m
Current CO2 Emissions Level
2.2
Potential CO2 Emissions Level
0.9
CO2 per sq m per Year
29
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
89 St. Helens Avenue
Date
18 Apr 2022
Current
Potential
62
83
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
+
Certificate History
18 Apr 2022
62
83
Total Floor Area
104 sq m
Current CO2 Emissions Level
4.4
Potential CO2 Emissions Level
1.7
CO2 per sq m per Year
42
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
2
Address
91 St. Helens Avenue
Date
8 Aug 2022
Current
Potential
67
86
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
+
Certificate History
8 Aug 2022
67
86
16 Sep 2013
62
79
21 Mar 2011
59
63
Total Floor Area
97 sq m
Current CO2 Emissions Level
3.5
Potential CO2 Emissions Level
1.2
CO2 per sq m per Year
36
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
2
Address
92 St. Helens Avenue
Date
30 Jun 2013
Current
Potential
60
79
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
+
Certificate History
30 Jun 2013
60
79
Total Floor Area
115 sq m
Current CO2 Emissions Level
4.7
Potential CO2 Emissions Level
2.3
CO2 per sq m per Year
41
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
3
Address
93 ST. HELENS AVENUE
Date
5 Jul 2021
Current
Potential
58
83
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
+
Certificate History
5 Jul 2021
58
83
Total Floor Area
102 sq m
Current CO2 Emissions Level
4.8
Potential CO2 Emissions Level
1.6
CO2 per sq m per Year
47
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
3
Address
95 ST. HELENS AVENUE
Date
26 Jul 2021
Current
Potential
63
84
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
+
Certificate History
26 Jul 2021
63
84
Total Floor Area
100 sq m
Current CO2 Emissions Level
4.0
Potential CO2 Emissions Level
1.5
CO2 per sq m per Year
41
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
2
Address
95 St. Helens Avenue
Date
27 Dec 2010
Current
Potential
52
73
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
+
Certificate History
27 Dec 2010
52
73
Total Floor Area
105 sq m
Current CO2 Emissions Level
6.4
Potential CO2 Emissions Level
3.5
CO2 per sq m per Year
61
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
2
Address
97 ST HELENS AVENUE, BRYNMILL
Date
13 Nov 2020
Current
Potential
53
85
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
+
Certificate History
13 Nov 2020
53
85
Total Floor Area
76 sq m
Current CO2 Emissions Level
4.4
Potential CO2 Emissions Level
1.1
CO2 per sq m per Year
57
Mains Gas Available
Yes
Habitable Rooms
7
Number of Extensions
2
Address
98 St. Helens Avenue
Date
15 Mar 2023
Current
Potential
72
88
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
+
Certificate History
15 Mar 2023
72
88
Total Floor Area
91 sq m
Current CO2 Emissions Level
2.6
Potential CO2 Emissions Level
0.9
CO2 per sq m per Year
29
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
1
Address
99 St. Helens Avenue
Date
20 Nov 2023
Current
Potential
67
81
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
+
Certificate History
20 Nov 2023
67
81
10 Nov 2021
64
81
Total Floor Area
119 sq m
Current CO2 Emissions Level
4.1
Potential CO2 Emissions Level
2.2
CO2 per sq m per Year
34
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
3
Address
Basement Flat, 74 St. Helens Avenue
Date
10 May 2012
Current
Potential
71
77
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1900-1929
+
Certificate History
10 May 2012
71
77
Total Floor Area
33 sq m
Current CO2 Emissions Level
1.4
Potential CO2 Emissions Level
0.9
CO2 per sq m per Year
41
Mains Gas Available
Yes
Habitable Rooms
1
Number of Extensions
0
Address
First Floor Flat, 101 St. Helens Avenue
Date
2 Oct 2011
Current
Potential
71
71
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1900-1929
+
Certificate History
2 Oct 2011
71
71
Total Floor Area
89 sq m
Current CO2 Emissions Level
3.5
Potential CO2 Emissions Level
3.4
CO2 per sq m per Year
33
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
1
Address
First Floor Flat, 102 St. Helens Avenue
Date
14 Aug 2019
Current
Potential
60
76
Property Type
Flat
Built Form
End-Terrace
Constructed
1900-1929
+
Certificate History
14 Aug 2019
60
76
17 Jun 2009
56
73
Total Floor Area
55 sq m
Current CO2 Emissions Level
2.9
Potential CO2 Emissions Level
1.4
CO2 per sq m per Year
53
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
1
Address
First Floor Flat 77 St Helens Avenue, Brynmill
Date
24 Nov 2020
Current
Potential
72
72
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1900-1929
+
Certificate History
24 Nov 2020
72
72
Total Floor Area
68 sq m
Current CO2 Emissions Level
2.2
Potential CO2 Emissions Level
2.2
CO2 per sq m per Year
32
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
1
Address
Ground Floor Flat, 101 St. Helens Avenue
Date
2 Apr 2014
Current
Potential
70
76
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1900-1929
+
Certificate History
2 Apr 2014
70
76
Total Floor Area
75 sq m
Current CO2 Emissions Level
2.5
Potential CO2 Emissions Level
1.9
CO2 per sq m per Year
34
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
1
Address
Ground Floor Flat, 102 St Helens Avenue
Date
5 Aug 2019
Current
Potential
51
68
Property Type
Flat
Built Form
End-Terrace
Constructed
1900-1929
+
Certificate History
5 Aug 2019
51
68
18 Aug 2009
50
70
Total Floor Area
54 sq m
Current CO2 Emissions Level
3.4
Potential CO2 Emissions Level
2.0
CO2 per sq m per Year
63
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
1
Address
Top Floor Flat, 101 St. Helens Avenue
Date
9 Mar 2022
Current
Potential
61
76
Property Type
Flat
Built Form
Semi-Detached
Constructed
1900-1929
+
Certificate History
9 Mar 2022
61
76
2 Oct 2011
65
65
Total Floor Area
65 sq m
Current CO2 Emissions Level
3.2
Potential CO2 Emissions Level
1.6
CO2 per sq m per Year
49
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
1
Address
Top Floor Flat, 102 St. Helens Avenue
Date
19 Feb 2021
Current
Potential
52
77
Property Type
Flat
Built Form
End-Terrace
Constructed
1900-1929
+
Certificate History
19 Feb 2021
52
77
7 Jul 2010
46
58
Total Floor Area
61 sq m
Current CO2 Emissions Level
3.9
Potential CO2 Emissions Level
1.5
CO2 per sq m per Year
63
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 2025.