PROPERTY ENERGY EFFICIENCY CERTIFICATE DETAILS
Wilby Street, NORTHAMPTON, NN1 5JX
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 Wilby Street, NN1 5JX 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 Wilby Street, NORTHAMPTON, NN1 5JX
Period Covered:
2008 - 31 January 2025
Address
Inspection Date
Current
Potential
Property Type
Built Form
Constructed
Address
10 Wilby Street
Date
8 Jul 2020
Current
Potential
56
83
Property Type
House
Built Form
End-Terrace
Constructed
before 1900
Certificate History
8 Jul 2020
56
83
2 Sep 2012
50
78
Total Floor Area
83 sq m
Current CO2 Emissions Level
5.0
Potential CO2 Emissions Level
1.8
CO2 per sq m per Year
60
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
3
Address
11 Wilby Street
Date
20 Jun 2011
Current
Potential
65
66
Property Type
House
Built Form
Mid-Terrace
Constructed
before 1900
Certificate History
20 Jun 2011
65
66
Total Floor Area
73 sq m
Current CO2 Emissions Level
3.2
Potential CO2 Emissions Level
3.1
CO2 per sq m per Year
43
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
11 WILBY STREET, NORTHAMPTON
Date
27 Apr 2021
Current
Potential
70
87
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
27 Apr 2021
70
87
Total Floor Area
75 sq m
Current CO2 Emissions Level
2.9
Potential CO2 Emissions Level
1.1
CO2 per sq m per Year
38
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
1
Address
13 Wilby Street
Date
6 Oct 2016
Current
Potential
65
82
Property Type
House
Built Form
Mid-Terrace
Constructed
before 1900
Certificate History
6 Oct 2016
65
82
Total Floor Area
91 sq m
Current CO2 Emissions Level
3.9
Potential CO2 Emissions Level
2.1
CO2 per sq m per Year
43
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
2
Address
14 Wilby Street
Date
5 Mar 2018
Current
Potential
59
83
Property Type
House
Built Form
Mid-Terrace
Constructed
before 1900
Certificate History
5 Mar 2018
59
83
Total Floor Area
78 sq m
Current CO2 Emissions Level
4.3
Potential CO2 Emissions Level
1.6
CO2 per sq m per Year
55
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
1
Address
16 Wilby Street
Date
20 Sep 2017
Current
Potential
57
86
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
20 Sep 2017
57
86
Total Floor Area
77 sq m
Current CO2 Emissions Level
4.5
Potential CO2 Emissions Level
1.3
CO2 per sq m per Year
58
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
1
Address
17 Wilby Street
Date
14 Jun 2018
Current
Potential
67
87
Property Type
House
Built Form
Mid-Terrace
Constructed
before 1900
Certificate History
14 Jun 2018
67
87
2 Jun 2009
48
58
Total Floor Area
91 sq m
Current CO2 Emissions Level
3.7
Potential CO2 Emissions Level
1.3
CO2 per sq m per Year
41
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
3
Address
18 Wilby Street
Date
2 Jun 2019
Current
Potential
65
83
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
2 Jun 2019
65
83
25 Aug 2009
40
49
9 Oct 2008
46
53
Total Floor Area
78 sq m
Current CO2 Emissions Level
3.5
Potential CO2 Emissions Level
1.6
CO2 per sq m per Year
45
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
2
Address
19 Wilby Street
Date
19 Mar 2024
Current
Potential
67
85
Property Type
House
Built Form
Mid-Terrace
Constructed
before 1900
Certificate History
19 Mar 2024
67
85
Total Floor Area
76 sq m
Current CO2 Emissions Level
3.3
Potential CO2 Emissions Level
1.5
CO2 per sq m per Year
43
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
3
Address
1a Wilby Street
Date
6 Jun 2017
Current
Potential
76
78
Property Type
Flat
Built Form
Mid-Terrace
Constructed
2007 onwards
Certificate History
6 Jun 2017
76
78
Total Floor Area
39 sq m
Current CO2 Emissions Level
1.2
Potential CO2 Emissions Level
1.1
CO2 per sq m per Year
31
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
1b Wilby Street
Date
24 May 2017
Current
Potential
81
81
Property Type
Flat
Built Form
Enclosed Mid-Terrace
Constructed
2007 onwards
Certificate History
24 May 2017
81
81
Total Floor Area
39 sq m
Current CO2 Emissions Level
0.9
Potential CO2 Emissions Level
0.8
CO2 per sq m per Year
22
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
1c Wilby Street
Date
24 May 2017
Current
Potential
80
80
Property Type
Flat
Built Form
Enclosed Mid-Terrace
Constructed
2003-2006
Certificate History
24 May 2017
80
80
Total Floor Area
44 sq m
Current CO2 Emissions Level
1.0
Potential CO2 Emissions Level
1.0
CO2 per sq m per Year
22
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
1d Wilby Street
Date
24 May 2017
Current
Potential
63
72
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
24 May 2017
63
72
Total Floor Area
66 sq m
Current CO2 Emissions Level
3.4
Potential CO2 Emissions Level
2.4
CO2 per sq m per Year
52
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
1e Wilby Street
Date
31 May 2017
Current
Potential
56
60
Property Type
Flat
Built Form
Enclosed Mid-Terrace
Constructed
1900-1929
Certificate History
31 May 2017
56
60
Total Floor Area
64 sq m
Current CO2 Emissions Level
4.0
Potential CO2 Emissions Level
3.7
CO2 per sq m per Year
63
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
1f Wilby Street
Date
29 May 2017
Current
Potential
68
73
Property Type
Flat
Built Form
Enclosed End-Terrace
Constructed
1900-1929
Certificate History
29 May 2017
68
73
Total Floor Area
54 sq m
Current CO2 Emissions Level
2.4
Potential CO2 Emissions Level
1.9
CO2 per sq m per Year
45
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
1g Wilby Street
Date
29 May 2017
Current
Potential
78
80
Property Type
Flat
Built Form
Enclosed Mid-Terrace
Constructed
2007 onwards
Certificate History
29 May 2017
78
80
Total Floor Area
51 sq m
Current CO2 Emissions Level
1.2
Potential CO2 Emissions Level
1.1
CO2 per sq m per Year
24
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
1h Wilby Street
Date
29 May 2017
Current
Potential
78
80
Property Type
Flat
Built Form
Enclosed Mid-Terrace
Constructed
2007 onwards
Certificate History
29 May 2017
78
80
Total Floor Area
44 sq m
Current CO2 Emissions Level
1.1
Potential CO2 Emissions Level
1.0
CO2 per sq m per Year
25
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
2 Wilby Street
Date
4 Mar 2014
Current
Potential
64
85
Property Type
House
Built Form
Mid-Terrace
Constructed
before 1900
Certificate History
4 Mar 2014
64
85
Total Floor Area
86 sq m
Current CO2 Emissions Level
3.7
Potential CO2 Emissions Level
1.4
CO2 per sq m per Year
43
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
1
Address
20 Wilby Street
Date
22 Nov 2016
Current
Potential
60
81
Property Type
House
Built Form
Mid-Terrace
Constructed
before 1900
Certificate History
22 Nov 2016
60
81
Total Floor Area
77 sq m
Current CO2 Emissions Level
4.2
Potential CO2 Emissions Level
1.9
CO2 per sq m per Year
54
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
1
Address
21 Wilby Street
Date
21 Apr 2024
Current
Potential
56
75
Property Type
House
Built Form
Mid-Terrace
Constructed
before 1900
Certificate History
21 Apr 2024
56
75
27 Mar 2014
49
79
Total Floor Area
78 sq m
Current CO2 Emissions Level
4.7
Potential CO2 Emissions Level
2.6
CO2 per sq m per Year
60
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
3
Address
22 Wilby Street
Date
6 Sep 2017
Current
Potential
53
84
Property Type
House
Built Form
Mid-Terrace
Constructed
before 1900
Certificate History
6 Sep 2017
53
84
21 Jan 2011
60
70
Total Floor Area
75 sq m
Current CO2 Emissions Level
4.9
Potential CO2 Emissions Level
1.5
CO2 per sq m per Year
65
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
1
Address
25 Wilby Street
Date
7 Jan 2022
Current
Potential
72
90
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
7 Jan 2022
72
90
22 Oct 2017
37
88
Total Floor Area
76 sq m
Current CO2 Emissions Level
2.6
Potential CO2 Emissions Level
0.8
CO2 per sq m per Year
35
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
2
Address
26 WILBY STREET
Date
9 Jun 2021
Current
Potential
69
87
Property Type
House
Built Form
Mid-Terrace
Constructed
before 1900
Certificate History
9 Jun 2021
69
87
Total Floor Area
81 sq m
Current CO2 Emissions Level
3.2
Potential CO2 Emissions Level
1.2
CO2 per sq m per Year
39
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
1
Address
28 Wilby Street
Date
14 Dec 2015
Current
Potential
54
84
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
14 Dec 2015
54
84
Total Floor Area
87 sq m
Current CO2 Emissions Level
5.4
Potential CO2 Emissions Level
1.7
CO2 per sq m per Year
62
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
2
Address
29 Wilby Street
Date
11 Sep 2012
Current
Potential
60
90
Property Type
House
Built Form
Mid-Terrace
Constructed
before 1900
Certificate History
11 Sep 2012
60
90
Total Floor Area
75 sq m
Current CO2 Emissions Level
3.8
Potential CO2 Emissions Level
0.7
CO2 per sq m per Year
50
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
1
Address
3 Wilby Street
Date
17 Mar 2016
Current
Potential
56
78
Property Type
House
Built Form
Mid-Terrace
Constructed
before 1900
Certificate History
17 Mar 2016
56
78
Total Floor Area
80 sq m
Current CO2 Emissions Level
4.8
Potential CO2 Emissions Level
2.4
CO2 per sq m per Year
60
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
31 Wilby Street
Date
21 Sep 2015
Current
Potential
49
81
Property Type
House
Built Form
Mid-Terrace
Constructed
before 1900
Certificate History
21 Sep 2015
49
81
Total Floor Area
68 sq m
Current CO2 Emissions Level
5.0
Potential CO2 Emissions Level
1.8
CO2 per sq m per Year
73
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
1
Address
33 Wilby Street
Date
19 Jun 2018
Current
Potential
60
84
Property Type
House
Built Form
Mid-Terrace
Constructed
before 1900
Certificate History
19 Jun 2018
60
84
Total Floor Area
71 sq m
Current CO2 Emissions Level
3.9
Potential CO2 Emissions Level
1.4
CO2 per sq m per Year
54
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
1
Address
34 Wilby Street
Date
3 Apr 2017
Current
Potential
48
78
Property Type
House
Built Form
Mid-Terrace
Constructed
before 1900
Certificate History
3 Apr 2017
48
78
Total Floor Area
75 sq m
Current CO2 Emissions Level
5.5
Potential CO2 Emissions Level
2.3
CO2 per sq m per Year
74
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
35 Wilby Street
Date
10 Dec 2019
Current
Potential
65
86
Property Type
House
Built Form
Mid-Terrace
Constructed
before 1900
Certificate History
10 Dec 2019
65
86
14 Dec 2009
68
70
Total Floor Area
77 sq m
Current CO2 Emissions Level
3.5
Potential CO2 Emissions Level
1.3
CO2 per sq m per Year
46
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
2
Address
36 Wilby Street
Date
8 Sep 2014
Current
Potential
55
86
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
8 Sep 2014
55
86
Total Floor Area
81 sq m
Current CO2 Emissions Level
4.5
Potential CO2 Emissions Level
1.2
CO2 per sq m per Year
55
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
2
Address
37 Wilby Street
Date
23 Nov 2021
Current
Potential
71
89
Property Type
House
Built Form
Mid-Terrace
Constructed
before 1900
Certificate History
23 Nov 2021
71
89
23 Nov 2009
46
65
Total Floor Area
81 sq m
Current CO2 Emissions Level
2.9
Potential CO2 Emissions Level
1.0
CO2 per sq m per Year
36
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
2
Address
39 Wilby Street
Date
3 Nov 2024
Current
Potential
61
85
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
3 Nov 2024
61
85
Total Floor Area
89 sq m
Current CO2 Emissions Level
4.5
Potential CO2 Emissions Level
1.6
CO2 per sq m per Year
51
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
3
Address
41 Wilby Street
Date
30 Sep 2019
Current
Potential
60
84
Property Type
House
Built Form
Mid-Terrace
Constructed
before 1900
Certificate History
30 Sep 2019
60
84
Total Floor Area
76 sq m
Current CO2 Emissions Level
4.1
Potential CO2 Emissions Level
1.6
CO2 per sq m per Year
54
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
1
Address
42 Wilby Street
Date
21 Dec 2018
Current
Potential
63
82
Property Type
House
Built Form
Mid-Terrace
Constructed
before 1900
Certificate History
21 Dec 2018
63
82
Total Floor Area
82 sq m
Current CO2 Emissions Level
3.9
Potential CO2 Emissions Level
1.9
CO2 per sq m per Year
48
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
2
Address
43 Wilby Street
Date
14 Feb 2024
Current
Potential
58
81
Property Type
House
Built Form
Mid-Terrace
Constructed
before 1900
Certificate History
14 Feb 2024
58
81
7 Jan 2013
65
85
29 Jul 2009
50
52
Total Floor Area
66 sq m
Current CO2 Emissions Level
4.5
Potential CO2 Emissions Level
2.1
CO2 per sq m per Year
69
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
2
Address
46 Wilby Street
Date
8 Apr 2018
Current
Potential
67
84
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
8 Apr 2018
67
84
Total Floor Area
101 sq m
Current CO2 Emissions Level
4.1
Potential CO2 Emissions Level
1.9
CO2 per sq m per Year
41
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
1
Address
47 WILBY STREET, NORTHAMPTON
Date
27 Apr 2021
Current
Potential
63
84
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
27 Apr 2021
63
84
Total Floor Area
75 sq m
Current CO2 Emissions Level
3.6
Potential CO2 Emissions Level
1.5
CO2 per sq m per Year
47
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
1
Address
48 Wilby Street
Date
8 Dec 2008
Current
Potential
41
55
Property Type
House
Built Form
End-Terrace
Constructed
before 1900
Certificate History
8 Dec 2008
41
55
Total Floor Area
83 sq m
Current CO2 Emissions Level
6.9
Potential CO2 Emissions Level
5.2
CO2 per sq m per Year
82
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
49 Wilby Street
Date
26 Oct 2022
Current
Potential
60
80
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
26 Oct 2022
60
80
Total Floor Area
75 sq m
Current CO2 Emissions Level
4.2
Potential CO2 Emissions Level
2.1
CO2 per sq m per Year
56
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
1
Address
5 Wilby Street
Date
9 Mar 2023
Current
Potential
61
86
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
9 Mar 2023
61
86
6 Feb 2012
42
61
Total Floor Area
80 sq m
Current CO2 Emissions Level
4.1
Potential CO2 Emissions Level
1.3
CO2 per sq m per Year
52
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
2
Address
51 Wilby Street
Date
12 Jan 2018
Current
Potential
69
87
Property Type
House
Built Form
Mid-Terrace
Constructed
before 1900
Certificate History
12 Jan 2018
69
87
22 Jun 2015
63
84
Total Floor Area
85 sq m
Current CO2 Emissions Level
3.2
Potential CO2 Emissions Level
1.3
CO2 per sq m per Year
38
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
1
Address
53 Wilby Street
Date
2 Jan 2020
Current
Potential
58
82
Property Type
House
Built Form
Mid-Terrace
Constructed
before 1900
Certificate History
2 Jan 2020
58
82
Total Floor Area
86 sq m
Current CO2 Emissions Level
4.7
Potential CO2 Emissions Level
1.9
CO2 per sq m per Year
55
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
2
Address
55 Wilby Street
Date
13 Jan 2023
Current
Potential
42
75
Property Type
House
Built Form
End-Terrace
Constructed
1900-1929
Certificate History
13 Jan 2023
42
75
16 Jan 2013
45
81
Total Floor Area
99 sq m
Current CO2 Emissions Level
7.7
Potential CO2 Emissions Level
3.3
CO2 per sq m per Year
78
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
2
Address
55a Wilby Street
Date
20 Aug 2013
Current
Potential
72
90
Property Type
House
Built Form
Semi-Detached
Constructed
2007 onwards
Certificate History
20 Aug 2013
72
90
Total Floor Area
65 sq m
Current CO2 Emissions Level
2.1
Potential CO2 Emissions Level
0.6
CO2 per sq m per Year
32
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
1
Address
7 Wilby Street
Date
22 Sep 2014
Current
Potential
41
75
Property Type
House
Built Form
End-Terrace
Constructed
before 1900
Certificate History
22 Sep 2014
41
75
Total Floor Area
76 sq m
Current CO2 Emissions Level
5.6
Potential CO2 Emissions Level
2.2
CO2 per sq m per Year
74
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
1
Address
8, Wilby Street
Date
2 Jul 2019
Current
Potential
59
83
Property Type
House
Built Form
End-Terrace
Constructed
before 1900
Certificate History
2 Jul 2019
59
83
Total Floor Area
89 sq m
Current CO2 Emissions Level
4.8
Potential CO2 Emissions Level
1.8
CO2 per sq m per Year
54
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
9 Wilby Street
Date
5 Sep 2019
Current
Potential
51
81
Property Type
House
Built Form
End-Terrace
Constructed
before 1900
Certificate History
5 Sep 2019
51
81
Total Floor Area
76 sq m
Current CO2 Emissions Level
5.2
Potential CO2 Emissions Level
1.9
CO2 per sq m per Year
68
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
2
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.