PROPERTY ENERGY EFFICIENCY CERTIFICATE DETAILS
Colwyn Close, STEVENAGE, SG1 2AT
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 Colwyn Close, SG1 2AT 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 Colwyn Close, STEVENAGE, SG1 2AT
Period Covered:
2008 - 31 January 2025
Address
Inspection Date
Current
Potential
Property Type
Built Form
Constructed
Address
1 Colwyn Close
Date
23 Sep 2010
Current
Potential
68
75
Property Type
House
Built Form
End-Terrace
Constructed
1991-1995
Certificate History
23 Sep 2010
68
75
Total Floor Area
72 sq m
Current CO2 Emissions Level
3.2
Potential CO2 Emissions Level
2.5
CO2 per sq m per Year
45
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
11 Colwyn Close
Date
17 Nov 2010
Current
Potential
81
81
Property Type
House
Built Form
Enclosed Mid-Terrace
Constructed
1983-1990
Certificate History
17 Nov 2010
81
81
Total Floor Area
33 sq m
Current CO2 Emissions Level
1.2
Potential CO2 Emissions Level
1.2
CO2 per sq m per Year
38
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
12 Colwyn Close
Date
26 Feb 2019
Current
Potential
60
90
Property Type
House
Built Form
Mid-Terrace
Constructed
1991-1995
Certificate History
26 Feb 2019
60
90
Total Floor Area
53 sq m
Current CO2 Emissions Level
3.9
Potential CO2 Emissions Level
1.8
CO2 per sq m per Year
74
Mains Gas Available
No
Habitable Rooms
3
Number of Extensions
0
Address
13 Colwyn Close
Date
6 Feb 2019
Current
Potential
68
84
Property Type
House
Built Form
End-Terrace
Constructed
1991-1995
Certificate History
6 Feb 2019
68
84
Total Floor Area
79 sq m
Current CO2 Emissions Level
3.1
Potential CO2 Emissions Level
1.5
CO2 per sq m per Year
40
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
1
Address
14 Colwyn Close
Date
17 Feb 2012
Current
Potential
73
74
Property Type
House
Built Form
Enclosed End-Terrace
Constructed
1996-2002
Certificate History
17 Feb 2012
73
74
Total Floor Area
48 sq m
Current CO2 Emissions Level
1.6
Potential CO2 Emissions Level
1.6
CO2 per sq m per Year
34
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
15 Colwyn Close
Date
1 Aug 2023
Current
Potential
74
90
Property Type
House
Built Form
Enclosed Mid-Terrace
Constructed
1996-2002
Certificate History
1 Aug 2023
74
90
2 Sep 2013
73
91
Total Floor Area
49 sq m
Current CO2 Emissions Level
1.7
Potential CO2 Emissions Level
0.5
CO2 per sq m per Year
34
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
16 Colwyn Close
Date
23 Oct 2024
Current
Potential
75
92
Property Type
House
Built Form
Enclosed End-Terrace
Constructed
1991-1995
Certificate History
23 Oct 2024
75
92
21 Feb 2019
65
90
Total Floor Area
50 sq m
Current CO2 Emissions Level
1.6
Potential CO2 Emissions Level
0.4
CO2 per sq m per Year
32
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
17 Colwyn Close
Date
12 Apr 2011
Current
Potential
59
67
Property Type
House
Built Form
Enclosed End-Terrace
Constructed
1983-1990
Certificate History
12 Apr 2011
59
67
Total Floor Area
45 sq m
Current CO2 Emissions Level
3.6
Potential CO2 Emissions Level
3.0
CO2 per sq m per Year
79
Mains Gas Available
No
Habitable Rooms
3
Number of Extensions
0
Address
17 COLWYN CLOSE, STEVENAGE
Date
13 May 2021
Current
Potential
65
90
Property Type
House
Built Form
Enclosed End-Terrace
Constructed
1991-1995
Certificate History
13 May 2021
65
90
Total Floor Area
49 sq m
Current CO2 Emissions Level
3.8
Potential CO2 Emissions Level
1.7
CO2 per sq m per Year
78
Mains Gas Available
No
Habitable Rooms
3
Number of Extensions
0
Address
18 Colwyn Close
Date
5 Oct 2015
Current
Potential
69
84
Property Type
House
Built Form
End-Terrace
Constructed
1991-1995
Certificate History
5 Oct 2015
69
84
Total Floor Area
70 sq m
Current CO2 Emissions Level
2.7
Potential CO2 Emissions Level
1.4
CO2 per sq m per Year
39
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
2 Colwyn Close
Date
5 Apr 2022
Current
Potential
69
88
Property Type
House
Built Form
Mid-Terrace
Constructed
1991-1995
Certificate History
5 Apr 2022
69
88
1 Feb 2012
69
75
Total Floor Area
65 sq m
Current CO2 Emissions Level
2.6
Potential CO2 Emissions Level
0.9
CO2 per sq m per Year
40
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
20 Colwyn Close
Date
13 Apr 2023
Current
Potential
74
88
Property Type
House
Built Form
Mid-Terrace
Constructed
1991-1995
Certificate History
13 Apr 2023
74
88
Total Floor Area
70 sq m
Current CO2 Emissions Level
2.2
Potential CO2 Emissions Level
0.9
CO2 per sq m per Year
32
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
21 Colwyn Close
Date
13 Jun 2016
Current
Potential
65
88
Property Type
House
Built Form
Mid-Terrace
Constructed
1996-2002
Certificate History
13 Jun 2016
65
88
Total Floor Area
54 sq m
Current CO2 Emissions Level
3.9
Potential CO2 Emissions Level
2.0
CO2 per sq m per Year
72
Mains Gas Available
No
Habitable Rooms
3
Number of Extensions
0
Address
22 Colwyn Close
Date
18 Mar 2019
Current
Potential
55
79
Property Type
House
Built Form
Mid-Terrace
Constructed
1991-1995
Certificate History
18 Mar 2019
55
79
Total Floor Area
52 sq m
Current CO2 Emissions Level
4.4
Potential CO2 Emissions Level
2.2
CO2 per sq m per Year
84
Mains Gas Available
No
Habitable Rooms
3
Number of Extensions
0
Address
24 Colwyn Close
Date
20 Jul 2024
Current
Potential
66
93
Property Type
House
Built Form
Enclosed End-Terrace
Constructed
1996-2002
Certificate History
20 Jul 2024
66
93
2 Jun 2014
67
96
28 Sep 2010
59
62
Total Floor Area
41 sq m
Current CO2 Emissions Level
3.3
Potential CO2 Emissions Level
1.3
CO2 per sq m per Year
80
Mains Gas Available
No
Habitable Rooms
2
Number of Extensions
0
Address
25 Colwyn Close
Date
28 Jul 2009
Current
Potential
62
67
Property Type
House
Built Form
Enclosed End-Terrace
Constructed
1983-1990
Certificate History
28 Jul 2009
62
67
Total Floor Area
41 sq m
Current CO2 Emissions Level
3.1
Potential CO2 Emissions Level
2.9
CO2 per sq m per Year
75
Mains Gas Available
No
Habitable Rooms
2
Number of Extensions
0
Address
25 COLWYN CLOSE, STEVENAGE
Date
30 Nov 2020
Current
Potential
50
91
Property Type
House
Built Form
Enclosed End-Terrace
Constructed
1991-1995
Certificate History
30 Nov 2020
50
91
Total Floor Area
41 sq m
Current CO2 Emissions Level
3.4
Potential CO2 Emissions Level
1.5
CO2 per sq m per Year
85
Mains Gas Available
No
Habitable Rooms
2
Number of Extensions
0
Address
25a Colwyn Close
Date
24 Jul 2022
Current
Potential
70
94
Property Type
House
Built Form
Enclosed Mid-Terrace
Constructed
1996-2002
Certificate History
24 Jul 2022
70
94
17 Sep 2009
71
74
Total Floor Area
42 sq m
Current CO2 Emissions Level
2.9
Potential CO2 Emissions Level
1.2
CO2 per sq m per Year
70
Mains Gas Available
No
Habitable Rooms
2
Number of Extensions
0
Address
26 Colwyn Close
Date
23 Nov 2017
Current
Potential
69
85
Property Type
House
Built Form
End-Terrace
Constructed
1991-1995
Certificate History
23 Nov 2017
69
85
Total Floor Area
70 sq m
Current CO2 Emissions Level
2.8
Potential CO2 Emissions Level
1.3
CO2 per sq m per Year
40
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
27 COLWYN CLOSE
Date
20 Sep 2020
Current
Potential
72
89
Property Type
House
Built Form
Mid-Terrace
Constructed
1996-2002
Certificate History
20 Sep 2020
72
89
Total Floor Area
67 sq m
Current CO2 Emissions Level
2.2
Potential CO2 Emissions Level
0.8
CO2 per sq m per Year
34
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
28 COLWYN CLOSE
Date
12 May 2021
Current
Potential
47
90
Property Type
House
Built Form
Mid-Terrace
Constructed
1991-1995
Certificate History
12 May 2021
47
90
Total Floor Area
52 sq m
Current CO2 Emissions Level
3.3
Potential CO2 Emissions Level
0.6
CO2 per sq m per Year
63
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
28 Colwyn Close
Date
16 Jul 2009
Current
Potential
67
69
Property Type
House
Built Form
Mid-Terrace
Constructed
1996-2002
Certificate History
16 Jul 2009
67
69
Total Floor Area
63 sq m
Current CO2 Emissions Level
2.8
Potential CO2 Emissions Level
2.7
CO2 per sq m per Year
52
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
28 COLWYN CLOSE, STEVENAGE
Date
14 Dec 2020
Current
Potential
60
90
Property Type
House
Built Form
Mid-Terrace
Constructed
1996-2002
Certificate History
14 Dec 2020
60
90
Total Floor Area
56 sq m
Current CO2 Emissions Level
4.2
Potential CO2 Emissions Level
1.9
CO2 per sq m per Year
74
Mains Gas Available
No
Habitable Rooms
3
Number of Extensions
0
Address
29 Colwyn Close
Date
18 Feb 2011
Current
Potential
67
67
Property Type
House
Built Form
Mid-Terrace
Constructed
1996-2002
Certificate History
18 Feb 2011
67
67
Total Floor Area
52 sq m
Current CO2 Emissions Level
2.8
Potential CO2 Emissions Level
2.8
CO2 per sq m per Year
55
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
30 Colwyn Close
Date
12 Nov 2021
Current
Potential
75
90
Property Type
House
Built Form
Mid-Terrace
Constructed
1996-2002
Certificate History
12 Nov 2021
75
90
16 May 2011
71
74
27 Jul 2009
79
81
Total Floor Area
52 sq m
Current CO2 Emissions Level
1.7
Potential CO2 Emissions Level
0.5
CO2 per sq m per Year
32
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
31 Colwyn Close
Date
13 Apr 2016
Current
Potential
61
90
Property Type
House
Built Form
Mid-Terrace
Constructed
1991-1995
Certificate History
13 Apr 2016
61
90
3 Feb 2009
72
72
Total Floor Area
52 sq m
Current CO2 Emissions Level
4.2
Potential CO2 Emissions Level
1.8
CO2 per sq m per Year
81
Mains Gas Available
No
Habitable Rooms
3
Number of Extensions
0
Address
32 Colwyn Close
Date
31 Aug 2016
Current
Potential
46
89
Property Type
House
Built Form
Mid-Terrace
Constructed
1996-2002
Certificate History
31 Aug 2016
46
89
Total Floor Area
56 sq m
Current CO2 Emissions Level
3.5
Potential CO2 Emissions Level
1.9
CO2 per sq m per Year
63
Mains Gas Available
No
Habitable Rooms
3
Number of Extensions
0
Address
33 Colwyn Close
Date
2 Apr 2019
Current
Potential
65
91
Property Type
House
Built Form
Mid-Terrace
Constructed
1991-1995
Certificate History
2 Apr 2019
65
91
Total Floor Area
53 sq m
Current CO2 Emissions Level
3.9
Potential CO2 Emissions Level
1.6
CO2 per sq m per Year
74
Mains Gas Available
No
Habitable Rooms
3
Number of Extensions
0
Address
36 Colwyn Close
Date
11 Dec 2009
Current
Potential
67
72
Property Type
House
Built Form
Mid-Terrace
Constructed
1991-1995
Certificate History
11 Dec 2009
67
72
Total Floor Area
52 sq m
Current CO2 Emissions Level
3.0
Potential CO2 Emissions Level
2.6
CO2 per sq m per Year
57
Mains Gas Available
No
Habitable Rooms
3
Number of Extensions
0
Address
37 Colwyn Close
Date
15 Apr 2010
Current
Potential
67
70
Property Type
House
Built Form
Mid-Terrace
Constructed
1996-2002
Certificate History
15 Apr 2010
67
70
Total Floor Area
52 sq m
Current CO2 Emissions Level
3.0
Potential CO2 Emissions Level
2.8
CO2 per sq m per Year
58
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
38 Colwyn Close
Date
24 Jul 2024
Current
Potential
68
91
Property Type
House
Built Form
Mid-Terrace
Constructed
1996-2002
Certificate History
24 Jul 2024
68
91
9 Jun 2014
70
94
Total Floor Area
52 sq m
Current CO2 Emissions Level
3.6
Potential CO2 Emissions Level
1.6
CO2 per sq m per Year
68
Mains Gas Available
No
Habitable Rooms
3
Number of Extensions
0
Address
39 Colwyn Close
Date
18 Feb 2011
Current
Potential
65
68
Property Type
House
Built Form
Mid-Terrace
Constructed
1996-2002
Certificate History
18 Feb 2011
65
68
Total Floor Area
52 sq m
Current CO2 Emissions Level
3.0
Potential CO2 Emissions Level
2.8
CO2 per sq m per Year
57
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
39 COLWYN CLOSE, STEVENAGE
Date
19 Mar 2021
Current
Potential
66
89
Property Type
House
Built Form
Mid-Terrace
Constructed
1996-2002
Certificate History
19 Mar 2021
66
89
Total Floor Area
52 sq m
Current CO2 Emissions Level
3.3
Potential CO2 Emissions Level
0.5
CO2 per sq m per Year
64
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
5 Colwyn Close
Date
1 Feb 2022
Current
Potential
57
95
Property Type
House
Built Form
Mid-Terrace
Constructed
1996-2002
Certificate History
1 Feb 2022
57
95
27 Sep 2011
62
72
Total Floor Area
52 sq m
Current CO2 Emissions Level
5.0
Potential CO2 Emissions Level
1.1
CO2 per sq m per Year
96
Mains Gas Available
No
Habitable Rooms
4
Number of Extensions
0
Address
6 Colwyn Close
Date
24 Jan 2018
Current
Potential
63
89
Property Type
House
Built Form
Mid-Terrace
Constructed
1991-1995
Certificate History
24 Jan 2018
63
89
Total Floor Area
52 sq m
Current CO2 Emissions Level
4.1
Potential CO2 Emissions Level
1.9
CO2 per sq m per Year
79
Mains Gas Available
No
Habitable Rooms
3
Number of Extensions
0
Address
7 Colwyn Close
Date
16 Jun 2009
Current
Potential
74
76
Property Type
House
Built Form
End-Terrace
Constructed
1996-2002
Certificate History
16 Jun 2009
74
76
Total Floor Area
69 sq m
Current CO2 Emissions Level
2.5
Potential CO2 Emissions Level
2.3
CO2 per sq m per Year
35
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
8 Colwyn Close
Date
13 Jan 2012
Current
Potential
61
71
Property Type
House
Built Form
End-Terrace
Constructed
1991-1995
Certificate History
13 Jan 2012
61
71
Total Floor Area
81 sq m
Current CO2 Emissions Level
3.5
Potential CO2 Emissions Level
2.4
CO2 per sq m per Year
50
Mains Gas Available
Yes
Habitable Rooms
4
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.