PROPERTY ENERGY EFFICIENCY CERTIFICATE DETAILS
Colquhoun Square, HELENSBURGH, G84 8AD
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 Colquhoun Square, G84 8AD 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 Colquhoun Square, HELENSBURGH, G84 8AD
Period Covered:
2012 - 30 September 2023
Address
Inspection Date
Current
Potential
Property Type
Built Form
Constructed
Address
FLAT 1 , 1 COLQUHOUN SQUARE
Date
31 Oct 2020
Current
Potential
66
66
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1984-1991
Certificate History
31 Oct 2020
66
66
Total Floor Area
56 sq m
Current CO2 Emissions Level
4.0
Potential CO2 Emissions Level
0.0
CO2 per sq m per Year
71
Mains Gas Available
No
Habitable Rooms
3
Number of Extensions
0
Address
FLAT 1 , 12 COLQUHOUN SQUARE
Date
30 May 2019
Current
Potential
63
82
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1976-1983
Certificate History
30 May 2019
63
82
29 May 2019
63
82
28 May 2019
63
82
Total Floor Area
61 sq m
Current CO2 Emissions Level
4.1
Potential CO2 Emissions Level
1.4
CO2 per sq m per Year
67
Mains Gas Available
No
Habitable Rooms
3
Number of Extensions
0
Address
FLAT 1 , 5 COLQUHOUN SQUARE
Date
16 Mar 2023
Current
Potential
52
69
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1992-1998
Certificate History
16 Mar 2023
52
69
19 Jan 2021
44
70
Total Floor Area
65 sq m
Current CO2 Emissions Level
4.0
Potential CO2 Emissions Level
0.0
CO2 per sq m per Year
62
Mains Gas Available
No
Habitable Rooms
4
Number of Extensions
0
Address
Flat 1/1 , 21 Colquhoun Square
Date
1 Nov 2023
Current
Potential
64
73
Property Type
Flat
Built Form
Mid-Terrace
Constructed
before 1919
Certificate History
1 Nov 2023
64
73
Total Floor Area
85 sq m
Current CO2 Emissions Level
4.5
Potential CO2 Emissions Level
1.3
CO2 per sq m per Year
53
Mains Gas Available
No
Habitable Rooms
3
Number of Extensions
0
Address
FLAT 1/1 , 24 COLQUHOUN SQUARE
Date
14 Sep 2021
Current
Potential
62
71
Property Type
Flat
Built Form
End-Terrace
Constructed
before 1919
Certificate History
14 Sep 2021
62
71
13 Sep 2021
62
71
12 Sep 2021
62
71
Total Floor Area
45 sq m
Current CO2 Emissions Level
2.9
Potential CO2 Emissions Level
0.8
CO2 per sq m per Year
65
Mains Gas Available
No
Habitable Rooms
2
Number of Extensions
0
Address
FLAT 10 , 1 COLQUHOUN SQUARE
Date
13 Aug 2024
Current
Potential
58
78
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1984-1991
Certificate History
13 Aug 2024
58
78
7 Dec 2022
49
76
Total Floor Area
91 sq m
Current CO2 Emissions Level
5.3
Potential CO2 Emissions Level
1.4
CO2 per sq m per Year
58
Mains Gas Available
No
Habitable Rooms
3
Number of Extensions
0
Address
FLAT 10 , 12 COLQUHOUN SQUARE
Date
22 Jul 2020
Current
Potential
69
74
Property Type
Flat
Built Form
Semi-Detached
Constructed
1984-1991
Certificate History
22 Jul 2020
69
74
23 Jul 2020
69
74
21 Jul 2020
69
74
Total Floor Area
66 sq m
Current CO2 Emissions Level
4.4
Potential CO2 Emissions Level
0.7
CO2 per sq m per Year
67
Mains Gas Available
No
Habitable Rooms
3
Number of Extensions
0
Address
FLAT 11 , 1 COLQUHOUN SQUARE
Date
25 Jun 2020
Current
Potential
49
72
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1976-1983
Certificate History
25 Jun 2020
49
72
26 Jun 2020
49
72
24 Jun 2020
49
72
Total Floor Area
60 sq m
Current CO2 Emissions Level
3.9
Potential CO2 Emissions Level
-0.2
CO2 per sq m per Year
65
Mains Gas Available
No
Habitable Rooms
3
Number of Extensions
0
Address
FLAT 11 , 16 COLQUHOUN SQUARE
Date
4 Dec 2015
Current
Potential
70
79
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1984-1991
Certificate History
4 Dec 2015
70
79
Total Floor Area
52 sq m
Current CO2 Emissions Level
3.7
Potential CO2 Emissions Level
0.9
CO2 per sq m per Year
71
Mains Gas Available
No
Habitable Rooms
2
Number of Extensions
0
Address
FLAT 12 , 12 COLQUHOUN SQUARE
Date
14 Aug 2024
Current
Potential
46
77
Property Type
Flat
Built Form
Enclosed Mid-Terrace
Constructed
1984-1991
Certificate History
14 Aug 2024
46
77
23 Oct 2016
54
61
22 Oct 2016
54
61
24 Oct 2016
54
61
Total Floor Area
40 sq m
Current CO2 Emissions Level
3.4
Potential CO2 Emissions Level
0.7
CO2 per sq m per Year
83
Mains Gas Available
No
Habitable Rooms
2
Number of Extensions
0
Address
FLAT 12 , 16 COLQUHOUN SQUARE
Date
7 Sep 2012
Current
Potential
74
78
Property Type
N/A
Built Form
N/A
Constructed
N/A
Certificate History
7 Sep 2012
74
78
Total Floor Area
51 sq m
Current CO2 Emissions Level
2.8
Potential CO2 Emissions Level
0.4
CO2 per sq m per Year
56
Mains Gas Available
No
Habitable Rooms
2
Number of Extensions
0
Address
FLAT 13 , 16 COLQUHOUN SQUARE
Date
18 Apr 2017
Current
Potential
63
78
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1984-1991
Certificate History
18 Apr 2017
63
78
17 Apr 2017
63
78
16 Apr 2017
63
78
Total Floor Area
66 sq m
Current CO2 Emissions Level
4.6
Potential CO2 Emissions Level
1.2
CO2 per sq m per Year
70
Mains Gas Available
No
Habitable Rooms
3
Number of Extensions
0
Address
FLAT 15 , 16 COLQUHOUN SQUARE
Date
30 Nov 2018
Current
Potential
69
69
Property Type
Flat
Built Form
End-Terrace
Constructed
1984-1991
Certificate History
30 Nov 2018
69
69
Total Floor Area
84 sq m
Current CO2 Emissions Level
3.7
Potential CO2 Emissions Level
0.0
CO2 per sq m per Year
43
Mains Gas Available
No
Habitable Rooms
3
Number of Extensions
0
Address
FLAT 2 , 1 COLQUHOUN SQUARE
Date
14 Jun 2022
Current
Potential
59
71
Property Type
Flat
Built Form
End-Terrace
Constructed
1976-1983
Certificate History
14 Jun 2022
59
71
15 Jun 2022
59
71
13 Jun 2022
59
71
Total Floor Area
94 sq m
Current CO2 Emissions Level
7.9
Potential CO2 Emissions Level
2.1
CO2 per sq m per Year
84
Mains Gas Available
No
Habitable Rooms
3
Number of Extensions
0
Address
FLAT 2 , 12 COLQUHOUN SQUARE
Date
31 Jul 2015
Current
Potential
43
45
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1984-1991
Certificate History
31 Jul 2015
43
45
30 Jul 2015
43
45
29 Jul 2015
43
45
Total Floor Area
68 sq m
Current CO2 Emissions Level
4.9
Potential CO2 Emissions Level
0.1
CO2 per sq m per Year
72
Mains Gas Available
No
Habitable Rooms
3
Number of Extensions
0
Address
FLAT 2 , 5 COLQUHOUN SQUARE
Date
27 Jul 2022
Current
Potential
43
74
Property Type
Flat
Built Form
Detached
Constructed
1984-1991
Certificate History
27 Jul 2022
43
74
28 Jul 2022
43
74
26 Jul 2022
43
74
Total Floor Area
70 sq m
Current CO2 Emissions Level
6.0
Potential CO2 Emissions Level
1.9
CO2 per sq m per Year
85
Mains Gas Available
No
Habitable Rooms
2
Number of Extensions
0
Address
FLAT 2/1 , 21 COLQUHOUN SQUARE
Date
7 Jul 2022
Current
Potential
49
58
Property Type
Flat
Built Form
Enclosed Mid-Terrace
Constructed
before 1919
Certificate History
7 Jul 2022
49
58
8 Jul 2022
49
58
6 Jul 2022
49
58
Total Floor Area
96 sq m
Current CO2 Emissions Level
6.6
Potential CO2 Emissions Level
1.3
CO2 per sq m per Year
69
Mains Gas Available
No
Habitable Rooms
3
Number of Extensions
0
Address
FLAT 2/2 , 21 COLQUHOUN SQUARE
Date
16 Sep 2015
Current
Potential
47
58
Property Type
Flat
Built Form
Enclosed Mid-Terrace
Constructed
before 1919
Certificate History
16 Sep 2015
47
58
15 Sep 2015
47
58
14 Sep 2015
47
58
Total Floor Area
73 sq m
Current CO2 Emissions Level
5.6
Potential CO2 Emissions Level
1.3
CO2 per sq m per Year
76
Mains Gas Available
No
Habitable Rooms
3
Number of Extensions
0
Address
FLAT 3 , 1 COLQUHOUN SQUARE
Date
7 Dec 2022
Current
Potential
59
70
Property Type
Flat
Built Form
End-Terrace
Constructed
1976-1983
Certificate History
7 Dec 2022
59
70
20 Mar 2012
60
68
Total Floor Area
80 sq m
Current CO2 Emissions Level
3.8
Potential CO2 Emissions Level
1.0
CO2 per sq m per Year
48
Mains Gas Available
No
Habitable Rooms
3
Number of Extensions
0
Address
FLAT 3 , 12 COLQUHOUN SQUARE
Date
3 Sep 2012
Current
Potential
44
45
Property Type
N/A
Built Form
N/A
Constructed
N/A
Certificate History
3 Sep 2012
44
45
17 Sep 2024
58
79
4 Sep 2012
44
45
Total Floor Area
39 sq m
Current CO2 Emissions Level
3.3
Potential CO2 Emissions Level
0.2
CO2 per sq m per Year
84
Mains Gas Available
No
Habitable Rooms
1
Number of Extensions
0
Address
FLAT 3 , 5 COLQUHOUN SQUARE
Date
17 Jan 2014
Current
Potential
34
51
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1976-1983
Certificate History
17 Jan 2014
34
51
Total Floor Area
58 sq m
Current CO2 Emissions Level
5.0
Potential CO2 Emissions Level
1.4
CO2 per sq m per Year
86
Mains Gas Available
No
Habitable Rooms
3
Number of Extensions
0
Address
FLAT 4 , 12 COLQUHOUN SQUARE
Date
27 Jun 2013
Current
Potential
69
73
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1984-1991
Certificate History
27 Jun 2013
69
73
28 Jun 2013
69
73
26 Jun 2013
69
73
Total Floor Area
41 sq m
Current CO2 Emissions Level
3.4
Potential CO2 Emissions Level
0.3
CO2 per sq m per Year
83
Mains Gas Available
No
Habitable Rooms
2
Number of Extensions
0
Address
FLAT 4 , 16 COLQUHOUN SQUARE
Date
20 Aug 2024
Current
Potential
72
73
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1984-1991
Certificate History
20 Aug 2024
72
73
28 Jul 2021
82
84
29 Jul 2021
82
84
27 Jul 2021
82
84
Total Floor Area
52 sq m
Current CO2 Emissions Level
3.5
Potential CO2 Emissions Level
0.0
CO2 per sq m per Year
68
Mains Gas Available
No
Habitable Rooms
2
Number of Extensions
0
Address
FLAT 4 , 5 COLQUHOUN SQUARE
Date
21 Nov 2022
Current
Potential
42
69
Property Type
Flat
Built Form
End-Terrace
Constructed
1984-1991
Certificate History
21 Nov 2022
42
69
Total Floor Area
114 sq m
Current CO2 Emissions Level
6.8
Potential CO2 Emissions Level
-0.2
CO2 per sq m per Year
60
Mains Gas Available
No
Habitable Rooms
4
Number of Extensions
0
Address
FLAT 5 , 1 COLQUHOUN SQUARE
Date
31 Aug 2024
Current
Potential
61
75
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1976-1983
Certificate History
31 Aug 2024
61
75
Total Floor Area
73 sq m
Current CO2 Emissions Level
4.3
Potential CO2 Emissions Level
0.2
CO2 per sq m per Year
58
Mains Gas Available
No
Habitable Rooms
3
Number of Extensions
0
Address
FLAT 5 , 12 COLQUHOUN SQUARE
Date
13 Oct 2020
Current
Potential
80
81
Property Type
Flat
Built Form
Enclosed End-Terrace
Constructed
1984-1991
Certificate History
13 Oct 2020
80
81
12 Oct 2020
80
81
11 Oct 2020
80
81
Total Floor Area
65 sq m
Current CO2 Emissions Level
2.8
Potential CO2 Emissions Level
0.0
CO2 per sq m per Year
43
Mains Gas Available
No
Habitable Rooms
3
Number of Extensions
0
Address
FLAT 5 , 16 COLQUHOUN SQUARE
Date
24 Dec 2020
Current
Potential
68
68
Property Type
Flat
Built Form
End-Terrace
Constructed
1984-1991
Certificate History
24 Dec 2020
68
68
Total Floor Area
71 sq m
Current CO2 Emissions Level
5.2
Potential CO2 Emissions Level
0.2
CO2 per sq m per Year
74
Mains Gas Available
No
Habitable Rooms
3
Number of Extensions
0
Address
FLAT 5 , 5 COLQUHOUN SQUARE
Date
15 Jun 2023
Current
Potential
76
77
Property Type
Flat
Built Form
Detached
Constructed
1984-1991
Certificate History
15 Jun 2023
76
77
14 Jun 2023
76
77
9 Feb 2023
67
78
Total Floor Area
72 sq m
Current CO2 Emissions Level
3.7
Potential CO2 Emissions Level
0.1
CO2 per sq m per Year
51
Mains Gas Available
No
Habitable Rooms
2
Number of Extensions
0
Address
FLAT 6 , 12 COLQUHOUN SQUARE
Date
9 May 2012
Current
Potential
63
64
Property Type
N/A
Built Form
End-Terrace
Constructed
N/A
Certificate History
9 May 2012
63
64
Total Floor Area
68 sq m
Current CO2 Emissions Level
2.9
Potential CO2 Emissions Level
0.1
CO2 per sq m per Year
42
Mains Gas Available
No
Habitable Rooms
3
Number of Extensions
0
Address
FLAT 6 , 16 COLQUHOUN SQUARE
Date
8 Jul 2014
Current
Potential
68
82
Property Type
Flat
Built Form
Enclosed Mid-Terrace
Constructed
1984-1991
Certificate History
8 Jul 2014
68
82
2 Jul 2024
45
75
7 Jul 2014
68
82
9 Jul 2014
68
82
Total Floor Area
52 sq m
Current CO2 Emissions Level
2.2
Potential CO2 Emissions Level
0.0
CO2 per sq m per Year
42
Mains Gas Available
No
Habitable Rooms
2
Number of Extensions
0
Address
FLAT 6 , 5 COLQUHOUN SQUARE
Date
24 Aug 2015
Current
Potential
55
76
Property Type
Flat
Built Form
End-Terrace
Constructed
1950-1964
Certificate History
24 Aug 2015
55
76
25 Aug 2015
55
76
23 Aug 2015
55
76
Total Floor Area
54 sq m
Current CO2 Emissions Level
5.0
Potential CO2 Emissions Level
1.8
CO2 per sq m per Year
93
Mains Gas Available
No
Habitable Rooms
2
Number of Extensions
0
Address
FLAT 7 , 16 COLQUHOUN SQUARE
Date
3 Nov 2022
Current
Potential
75
80
Property Type
Flat
Built Form
Enclosed Mid-Terrace
Constructed
1984-1991
Certificate History
3 Nov 2022
75
80
Total Floor Area
51 sq m
Current CO2 Emissions Level
1.8
Potential CO2 Emissions Level
-0.1
CO2 per sq m per Year
36
Mains Gas Available
No
Habitable Rooms
2
Number of Extensions
0
Address
FLAT 7 , 5 COLQUHOUN SQUARE
Date
8 Oct 2020
Current
Potential
75
81
Property Type
Flat
Built Form
Semi-Detached
Constructed
1976-1983
Certificate History
8 Oct 2020
75
81
9 Oct 2020
75
81
7 Oct 2020
75
81
Total Floor Area
93 sq m
Current CO2 Emissions Level
5.2
Potential CO2 Emissions Level
1.2
CO2 per sq m per Year
56
Mains Gas Available
No
Habitable Rooms
4
Number of Extensions
0
Address
FLAT 8 , 12 COLQUHOUN SQUARE
Date
30 Jun 2017
Current
Potential
73
74
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1984-1991
Certificate History
30 Jun 2017
73
74
29 Jun 2017
73
74
28 Jun 2017
73
74
Total Floor Area
40 sq m
Current CO2 Emissions Level
2.2
Potential CO2 Emissions Level
0.1
CO2 per sq m per Year
54
Mains Gas Available
No
Habitable Rooms
2
Number of Extensions
0
Address
FLAT 8 , 16 COLQUHOUN SQUARE
Date
12 Sep 2022
Current
Potential
64
66
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1984-1991
Certificate History
12 Sep 2022
64
66
11 Sep 2022
64
66
10 Sep 2022
64
66
Total Floor Area
62 sq m
Current CO2 Emissions Level
2.9
Potential CO2 Emissions Level
0.2
CO2 per sq m per Year
47
Mains Gas Available
No
Habitable Rooms
3
Number of Extensions
0
Address
FLAT 9 , 1 COLQUHOUN SQUARE
Date
19 Feb 2015
Current
Potential
54
77
Property Type
Flat
Built Form
End-Terrace
Constructed
1976-1983
Certificate History
19 Feb 2015
54
77
Total Floor Area
90 sq m
Current CO2 Emissions Level
7.5
Potential CO2 Emissions Level
3.0
CO2 per sq m per Year
83
Mains Gas Available
No
Habitable Rooms
3
Number of Extensions
0
Address
FLAT 9 , 16 COLQUHOUN SQUARE
Date
24 Aug 2023
Current
Potential
74
85
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1984-1991
Certificate History
24 Aug 2023
74
85
25 Aug 2023
74
85
17 Apr 2019
75
86
18 Apr 2019
75
86
Total Floor Area
50 sq m
Current CO2 Emissions Level
1.8
Potential CO2 Emissions Level
-0.1
CO2 per sq m per Year
37
Mains Gas Available
No
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.
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