PROPERTY ENERGY EFFICIENCY CERTIFICATE DETAILS
John Street, HELENSBURGH, G84 8BA
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 John Street, G84 8BA 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 John Street, HELENSBURGH, G84 8BA
Period Covered:
2012 - 30 September 2023
Address
Inspection Date
Current
Potential
Property Type
Built Form
Constructed
Address
12 John Street
Date
14 Aug 2022
Current
Potential
89
91
Property Type
Bungalow
Built Form
Detached
Constructed
N/A
Certificate History
14 Aug 2022
89
91
15 Aug 2022
89
91
13 Aug 2022
89
91
Total Floor Area
65 sq m
Current CO2 Emissions Level
0.8
Potential CO2 Emissions Level
0.2
CO2 per sq m per Year
12
Mains Gas Available
No
Habitable Rooms
0
Number of Extensions
0
Address
16B JOHN STREET
Date
30 Jan 2024
Current
Potential
69
76
Property Type
Flat
Built Form
Semi-Detached
Constructed
before 1919
Certificate History
30 Jan 2024
69
76
Total Floor Area
24 sq m
Current CO2 Emissions Level
1.6
Potential CO2 Emissions Level
-0.1
CO2 per sq m per Year
68
Mains Gas Available
No
Habitable Rooms
1
Number of Extensions
0
Address
17 JOHN STREET
Date
4 Mar 2014
Current
Potential
39
75
Property Type
Maisonette
Built Form
Mid-Terrace
Constructed
before 1919
Certificate History
4 Mar 2014
39
75
Total Floor Area
52 sq m
Current CO2 Emissions Level
4.2
Potential CO2 Emissions Level
0.9
CO2 per sq m per Year
81
Mains Gas Available
No
Habitable Rooms
2
Number of Extensions
0
Address
FLAT 1/1 , 16 JOHN STREET
Date
21 Sep 2016
Current
Potential
72
85
Property Type
Flat
Built Form
Mid-Terrace
Constructed
before 1919
Certificate History
21 Sep 2016
72
85
22 Sep 2016
72
85
20 Sep 2016
72
85
Total Floor Area
26 sq m
Current CO2 Emissions Level
1.9
Potential CO2 Emissions Level
0.6
CO2 per sq m per Year
74
Mains Gas Available
No
Habitable Rooms
2
Number of Extensions
0
Address
FLAT 1/1 , 24 JOHN STREET
Date
3 Aug 2023
Current
Potential
67
80
Property Type
Flat
Built Form
End-Terrace
Constructed
before 1919
Certificate History
3 Aug 2023
67
80
2 Aug 2023
67
80
27 Sep 2016
75
82
26 Sep 2016
75
82
Total Floor Area
58 sq m
Current CO2 Emissions Level
2.9
Potential CO2 Emissions Level
1.4
CO2 per sq m per Year
50
Mains Gas Available
No
Habitable Rooms
3
Number of Extensions
0
Address
FLAT 1/1 , 28 JOHN STREET
Date
18 Jul 2022
Current
Potential
75
81
Property Type
Flat
Built Form
Mid-Terrace
Constructed
before 1919
Certificate History
18 Jul 2022
75
81
19 Jul 2022
75
81
17 Jul 2022
75
81
Total Floor Area
55 sq m
Current CO2 Emissions Level
1.9
Potential CO2 Emissions Level
0.7
CO2 per sq m per Year
35
Mains Gas Available
No
Habitable Rooms
3
Number of Extensions
0
Address
FLAT 1/2 , 16 JOHN STREET
Date
22 Sep 2016
Current
Potential
54
79
Property Type
Flat
Built Form
Mid-Terrace
Constructed
before 1919
Certificate History
22 Sep 2016
54
79
21 Sep 2016
54
79
20 Sep 2016
54
79
Total Floor Area
24 sq m
Current CO2 Emissions Level
2.4
Potential CO2 Emissions Level
1.6
CO2 per sq m per Year
97
Mains Gas Available
No
Habitable Rooms
2
Number of Extensions
0
Address
FLAT 1/2 , 24 JOHN STREET
Date
27 Sep 2016
Current
Potential
61
78
Property Type
Flat
Built Form
Semi-Detached
Constructed
1919-1929
Certificate History
27 Sep 2016
61
78
28 Sep 2016
61
78
26 Sep 2016
61
78
Total Floor Area
61 sq m
Current CO2 Emissions Level
3.6
Potential CO2 Emissions Level
1.9
CO2 per sq m per Year
58
Mains Gas Available
No
Habitable Rooms
3
Number of Extensions
0
Address
FLAT 1/2 , 26 JOHN STREET
Date
8 Apr 2024
Current
Potential
74
82
Property Type
Flat
Built Form
Mid-Terrace
Constructed
before 1919
Certificate History
8 Apr 2024
74
82
6 Jul 2021
72
81
5 Jul 2021
72
81
7 Jul 2021
72
81
Total Floor Area
61 sq m
Current CO2 Emissions Level
2.2
Potential CO2 Emissions Level
0.9
CO2 per sq m per Year
37
Mains Gas Available
No
Habitable Rooms
3
Number of Extensions
0
Address
FLAT 1/2 , 28 JOHN STREET
Date
19 Jan 2024
Current
Potential
61
69
Property Type
Flat
Built Form
Enclosed End-Terrace
Constructed
before 1919
Certificate History
19 Jan 2024
61
69
28 Sep 2015
53
70
29 Sep 2015
53
70
Total Floor Area
65 sq m
Current CO2 Emissions Level
4.1
Potential CO2 Emissions Level
1.0
CO2 per sq m per Year
63
Mains Gas Available
No
Habitable Rooms
3
Number of Extensions
0
Address
FLAT 2/1 , 15 JOHN STREET
Date
4 May 2016
Current
Potential
58
69
Property Type
Flat
Built Form
Mid-Terrace
Constructed
before 1919
Certificate History
4 May 2016
58
69
3 May 2016
58
69
2 May 2016
58
69
Total Floor Area
34 sq m
Current CO2 Emissions Level
2.9
Potential CO2 Emissions Level
1.0
CO2 per sq m per Year
86
Mains Gas Available
No
Habitable Rooms
2
Number of Extensions
0
Address
FLAT 2/1 , 16 JOHN STREET
Date
21 Sep 2016
Current
Potential
60
83
Property Type
Flat
Built Form
Mid-Terrace
Constructed
before 1919
Certificate History
21 Sep 2016
60
83
22 Sep 2016
60
83
20 Sep 2016
60
83
Total Floor Area
26 sq m
Current CO2 Emissions Level
2.1
Potential CO2 Emissions Level
0.5
CO2 per sq m per Year
81
Mains Gas Available
No
Habitable Rooms
2
Number of Extensions
0
Address
FLAT 2/1 , 24 JOHN STREET
Date
20 Nov 2018
Current
Potential
51
77
Property Type
Flat
Built Form
Semi-Detached
Constructed
before 1919
Certificate History
20 Nov 2018
51
77
Total Floor Area
57 sq m
Current CO2 Emissions Level
4.8
Potential CO2 Emissions Level
3.1
CO2 per sq m per Year
83
Mains Gas Available
No
Habitable Rooms
3
Number of Extensions
0
Address
FLAT 2/1 , 26 JOHN STREET
Date
4 May 2016
Current
Potential
7
78
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1919-1929
Certificate History
4 May 2016
7
78
3 May 2016
7
78
2 May 2016
7
78
Total Floor Area
56 sq m
Current CO2 Emissions Level
8.5
Potential CO2 Emissions Level
6.8
CO2 per sq m per Year
151
Mains Gas Available
No
Habitable Rooms
3
Number of Extensions
0
Address
FLAT 2/1 , 28 JOHN STREET
Date
20 Apr 2016
Current
Potential
35
74
Property Type
Flat
Built Form
Enclosed End-Terrace
Constructed
before 1919
Certificate History
20 Apr 2016
35
74
21 Apr 2016
35
74
19 Apr 2016
35
74
Total Floor Area
59 sq m
Current CO2 Emissions Level
6.6
Potential CO2 Emissions Level
4.3
CO2 per sq m per Year
113
Mains Gas Available
No
Habitable Rooms
3
Number of Extensions
0
Address
FLAT 2/2 , 15 JOHN STREET
Date
2 Jun 2013
Current
Potential
53
68
Property Type
N/A
Built Form
End-Terrace
Constructed
N/A
Certificate History
2 Jun 2013
53
68
Total Floor Area
33 sq m
Current CO2 Emissions Level
2.9
Potential CO2 Emissions Level
1.2
CO2 per sq m per Year
87
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
FLAT 2/2 , 16 JOHN STREET
Date
21 Sep 2016
Current
Potential
43
81
Property Type
Flat
Built Form
End-Terrace
Constructed
before 1919
Certificate History
21 Sep 2016
43
81
22 Sep 2016
43
81
20 Sep 2016
43
81
Total Floor Area
24 sq m
Current CO2 Emissions Level
2.9
Potential CO2 Emissions Level
1.1
CO2 per sq m per Year
118
Mains Gas Available
No
Habitable Rooms
2
Number of Extensions
0
Address
FLAT 2/2 , 24 JOHN STREET
Date
24 Aug 2022
Current
Potential
58
66
Property Type
Flat
Built Form
Enclosed Mid-Terrace
Constructed
before 1919
Certificate History
24 Aug 2022
58
66
25 Aug 2022
58
66
23 Aug 2022
58
66
Total Floor Area
73 sq m
Current CO2 Emissions Level
4.7
Potential CO2 Emissions Level
0.9
CO2 per sq m per Year
65
Mains Gas Available
No
Habitable Rooms
3
Number of Extensions
0
Address
FLAT 2/2 , 26 JOHN STREET
Date
4 Oct 2018
Current
Potential
72
78
Property Type
Flat
Built Form
Mid-Terrace
Constructed
before 1919
Certificate History
4 Oct 2018
72
78
5 Oct 2018
72
78
3 Oct 2018
72
78
Total Floor Area
62 sq m
Current CO2 Emissions Level
2.5
Potential CO2 Emissions Level
0.8
CO2 per sq m per Year
40
Mains Gas Available
No
Habitable Rooms
3
Number of Extensions
0
Address
FLAT 2/2 , 28 JOHN STREET
Date
6 Aug 2017
Current
Potential
48
79
Property Type
Flat
Built Form
Enclosed End-Terrace
Constructed
before 1919
Certificate History
6 Aug 2017
48
79
7 Aug 2017
48
79
5 Aug 2017
48
79
Total Floor Area
82 sq m
Current CO2 Emissions Level
3.8
Potential CO2 Emissions Level
1.8
CO2 per sq m per Year
46
Mains Gas Available
No
Habitable Rooms
3
Number of Extensions
0
Address
FLAT 2/3 , 28 JOHN STREET
Date
3 Oct 2022
Current
Potential
73
78
Property Type
Flat
Built Form
Mid-Terrace
Constructed
before 1919
Certificate History
3 Oct 2022
73
78
4 Oct 2022
73
78
20 Jul 2019
71
79
2 Oct 2022
73
78
Total Floor Area
58 sq m
Current CO2 Emissions Level
2.2
Potential CO2 Emissions Level
0.6
CO2 per sq m per Year
38
Mains Gas Available
No
Habitable Rooms
3
Number of Extensions
0
Address
FLAT GROUND/1 , 15 JOHN STREET
Date
5 Nov 2018
Current
Potential
61
78
Property Type
Flat
Built Form
Detached
Constructed
before 1919
Certificate History
5 Nov 2018
61
78
Total Floor Area
46 sq m
Current CO2 Emissions Level
3.2
Potential CO2 Emissions Level
1.8
CO2 per sq m per Year
70
Mains Gas Available
No
Habitable Rooms
2
Number of Extensions
0
Address
FLAT GROUND/1 , 16 JOHN STREET
Date
22 Sep 2016
Current
Potential
64
77
Property Type
Flat
Built Form
Mid-Terrace
Constructed
before 1919
Certificate History
22 Sep 2016
64
77
21 Sep 2016
64
77
20 Sep 2016
64
77
Total Floor Area
30 sq m
Current CO2 Emissions Level
2.9
Potential CO2 Emissions Level
1.2
CO2 per sq m per Year
97
Mains Gas Available
No
Habitable Rooms
2
Number of Extensions
0
Address
FLAT GROUND/1 , 24 JOHN STREET
Date
27 Apr 2021
Current
Potential
64
78
Property Type
Flat
Built Form
Mid-Terrace
Constructed
before 1919
Certificate History
27 Apr 2021
64
78
28 Apr 2021
64
78
26 Apr 2021
64
78
Total Floor Area
57 sq m
Current CO2 Emissions Level
3.4
Potential CO2 Emissions Level
1.7
CO2 per sq m per Year
59
Mains Gas Available
No
Habitable Rooms
3
Number of Extensions
0
Address
FLAT GROUND/1 , 26 JOHN STREET
Date
1 May 2018
Current
Potential
66
77
Property Type
Flat
Built Form
Mid-Terrace
Constructed
before 1919
Certificate History
1 May 2018
66
77
30 Apr 2018
66
77
29 Apr 2018
66
77
Total Floor Area
56 sq m
Current CO2 Emissions Level
2.9
Potential CO2 Emissions Level
1.1
CO2 per sq m per Year
53
Mains Gas Available
No
Habitable Rooms
3
Number of Extensions
0
Address
FLAT GROUND/1 , 28 JOHN STREET
Date
29 Oct 2012
Current
Potential
66
73
Property Type
N/A
Built Form
N/A
Constructed
N/A
Certificate History
29 Oct 2012
66
73
Total Floor Area
55 sq m
Current CO2 Emissions Level
2.6
Potential CO2 Emissions Level
0.7
CO2 per sq m per Year
47
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
FLAT GROUND/1 , 9 JOHN STREET
Date
11 Aug 2017
Current
Potential
65
76
Property Type
Flat
Built Form
Mid-Terrace
Constructed
before 1919
Certificate History
11 Aug 2017
65
76
10 Aug 2017
65
76
9 Aug 2017
65
76
Total Floor Area
45 sq m
Current CO2 Emissions Level
2.7
Potential CO2 Emissions Level
1.1
CO2 per sq m per Year
60
Mains Gas Available
No
Habitable Rooms
2
Number of Extensions
0
Address
FLAT GROUND/2 , 15 JOHN STREET
Date
26 Oct 2016
Current
Potential
52
81
Property Type
Flat
Built Form
End-Terrace
Constructed
1919-1929
Certificate History
26 Oct 2016
52
81
27 Oct 2016
52
81
25 Oct 2016
52
81
Total Floor Area
27 sq m
Current CO2 Emissions Level
5.0
Potential CO2 Emissions Level
3.1
CO2 per sq m per Year
184
Mains Gas Available
No
Habitable Rooms
2
Number of Extensions
0
Address
FLAT GROUND/2 , 16 JOHN STREET
Date
21 Sep 2016
Current
Potential
39
77
Property Type
Flat
Built Form
End-Terrace
Constructed
before 1919
Certificate History
21 Sep 2016
39
77
20 Sep 2016
39
77
Total Floor Area
24 sq m
Current CO2 Emissions Level
3.2
Potential CO2 Emissions Level
1.6
CO2 per sq m per Year
131
Mains Gas Available
No
Habitable Rooms
2
Number of Extensions
0
Address
FLAT GROUND/2 , 24 JOHN STREET
Date
8 Jan 2024
Current
Potential
65
76
Property Type
Flat
Built Form
Mid-Terrace
Constructed
before 1919
Certificate History
8 Jan 2024
65
76
30 Mar 2014
51
74
30 Mar 2014
51
74
Total Floor Area
47 sq m
Current CO2 Emissions Level
2.7
Potential CO2 Emissions Level
1.1
CO2 per sq m per Year
58
Mains Gas Available
No
Habitable Rooms
2
Number of Extensions
0
Address
FLAT GROUND/2 , 26 JOHN STREET
Date
14 Aug 2019
Current
Potential
68
77
Property Type
Flat
Built Form
Semi-Detached
Constructed
before 1919
Certificate History
14 Aug 2019
68
77
13 Aug 2019
68
77
12 Aug 2019
68
77
Total Floor Area
50 sq m
Current CO2 Emissions Level
2.5
Potential CO2 Emissions Level
0.9
CO2 per sq m per Year
50
Mains Gas Available
No
Habitable Rooms
3
Number of Extensions
0
Address
FLAT GROUND/2 , 9 JOHN STREET
Date
22 Jun 2013
Current
Potential
66
73
Property Type
N/A
Built Form
End-Terrace
Constructed
N/A
Certificate History
22 Jun 2013
66
73
Total Floor Area
45 sq m
Current CO2 Emissions Level
2.3
Potential CO2 Emissions Level
0.7
CO2 per sq m per Year
51
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
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.