PROPERTY ENERGY EFFICIENCY CERTIFICATE DETAILS
Henry Street, NORTHAMPTON, NN1 4JD
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 Henry Street, NN1 4JD 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 Henry Street, NORTHAMPTON, NN1 4JD
Period Covered:
2008 - 31 January 2025
Address
Inspection Date
Current
Potential
Property Type
Built Form
Constructed
Address
11 Henry Street
Date
17 Apr 2025
Current
Potential
69
88
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
17 Apr 2025
69
88
13 Aug 2013
57
82
Total Floor Area
73 sq m
Current CO2 Emissions Level
3.0
Potential CO2 Emissions Level
1.0
CO2 per sq m per Year
40
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
19 Henry Street
Date
5 Dec 2018
Current
Potential
57
80
Property Type
House
Built Form
Mid-Terrace
Constructed
before 1900
Certificate History
5 Dec 2018
57
80
31 Oct 2008
45
47
Total Floor Area
84 sq m
Current CO2 Emissions Level
4.7
Potential CO2 Emissions Level
2.1
CO2 per sq m per Year
57
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
1
Address
21 Henry Street
Date
9 Jan 2019
Current
Potential
41
73
Property Type
House
Built Form
Mid-Terrace
Constructed
before 1900
Certificate History
9 Jan 2019
41
73
6 Nov 2008
58
67
Total Floor Area
89 sq m
Current CO2 Emissions Level
7.1
Potential CO2 Emissions Level
3.2
CO2 per sq m per Year
80
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
3
Address
23 Henry Street
Date
15 Dec 2021
Current
Potential
61
81
Property Type
House
Built Form
Mid-Terrace
Constructed
before 1900
Certificate History
15 Dec 2021
61
81
Total Floor Area
81 sq m
Current CO2 Emissions Level
4.1
Potential CO2 Emissions Level
1.9
CO2 per sq m per Year
50
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
1
Address
25 Henry Street
Date
5 Nov 2018
Current
Potential
63
86
Property Type
House
Built Form
Mid-Terrace
Constructed
before 1900
Certificate History
5 Nov 2018
63
86
4 Dec 2008
59
65
Total Floor Area
78 sq m
Current CO2 Emissions Level
3.8
Potential CO2 Emissions Level
1.4
CO2 per sq m per Year
49
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
1
Address
27 Henry Street
Date
21 Jun 2020
Current
Potential
56
79
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
21 Jun 2020
56
79
23 Feb 2010
55
59
Total Floor Area
89 sq m
Current CO2 Emissions Level
5.2
Potential CO2 Emissions Level
2.3
CO2 per sq m per Year
59
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
2
Address
29 Henry Street
Date
15 Oct 2023
Current
Potential
55
75
Property Type
House
Built Form
Mid-Terrace
Constructed
before 1900
Certificate History
15 Oct 2023
55
75
3 Jun 2010
53
56
Total Floor Area
78 sq m
Current CO2 Emissions Level
4.7
Potential CO2 Emissions Level
2.6
CO2 per sq m per Year
61
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
31 Henry Street
Date
19 Dec 2014
Current
Potential
62
86
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
19 Dec 2014
62
86
Total Floor Area
110 sq m
Current CO2 Emissions Level
5.2
Potential CO2 Emissions Level
1.8
CO2 per sq m per Year
47
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
1
Address
31a Henry Street
Date
26 Apr 2020
Current
Potential
75
75
Property Type
Flat
Built Form
Mid-Terrace
Constructed
N/A
Certificate History
26 Apr 2020
75
75
12 May 2019
67
76
Total Floor Area
52 sq m
Current CO2 Emissions Level
1.7
Potential CO2 Emissions Level
1.7
CO2 per sq m per Year
32
Mains Gas Available
No
Habitable Rooms
0
Number of Extensions
0
Address
33a Henry Street
Date
1 Mar 2023
Current
Potential
59
90
Property Type
House
Built Form
Mid-Terrace
Constructed
before 1900
Certificate History
1 Mar 2023
59
90
5 Nov 2008
59
65
Total Floor Area
47 sq m
Current CO2 Emissions Level
3.1
Potential CO2 Emissions Level
0.5
CO2 per sq m per Year
65
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
37 Henry Street
Date
24 Mar 2014
Current
Potential
67
85
Property Type
House
Built Form
Mid-Terrace
Constructed
before 1900
Certificate History
24 Mar 2014
67
85
20 Nov 2013
26
79
Total Floor Area
83 sq m
Current CO2 Emissions Level
3.1
Potential CO2 Emissions Level
1.4
CO2 per sq m per Year
38
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
2
Address
39 Henry Street
Date
14 Jan 2019
Current
Potential
67
86
Property Type
House
Built Form
Mid-Terrace
Constructed
before 1900
Certificate History
14 Jan 2019
67
86
14 Jul 2014
59
79
Total Floor Area
76 sq m
Current CO2 Emissions Level
3.3
Potential CO2 Emissions Level
1.4
CO2 per sq m per Year
43
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
2
Address
41 Henry Street
Date
8 Nov 2021
Current
Potential
74
88
Property Type
House
Built Form
Mid-Terrace
Constructed
before 1900
Certificate History
8 Nov 2021
74
88
Total Floor Area
77 sq m
Current CO2 Emissions Level
2.4
Potential CO2 Emissions Level
1.0
CO2 per sq m per Year
31
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
2
Address
41 HENRY STREET, NORTHAMPTON
Date
18 Oct 2020
Current
Potential
42
86
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
18 Oct 2020
42
86
Total Floor Area
79 sq m
Current CO2 Emissions Level
7.8
Potential CO2 Emissions Level
2.8
CO2 per sq m per Year
99
Mains Gas Available
No
Habitable Rooms
3
Number of Extensions
1
Address
43 Henry Street
Date
20 Dec 2016
Current
Potential
66
86
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
20 Dec 2016
66
86
Total Floor Area
76 sq m
Current CO2 Emissions Level
3.4
Potential CO2 Emissions Level
1.3
CO2 per sq m per Year
45
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
2
Address
45 Henry Street
Date
23 Apr 2017
Current
Potential
25
76
Property Type
Flat
Built Form
End-Terrace
Constructed
before 1900
Certificate History
23 Apr 2017
25
76
4 May 2009
9
38
Total Floor Area
41 sq m
Current CO2 Emissions Level
4.5
Potential CO2 Emissions Level
2.6
CO2 per sq m per Year
111
Mains Gas Available
No
Habitable Rooms
2
Number of Extensions
0
Address
45a Henry Street
Date
23 Apr 2017
Current
Potential
56
76
Property Type
Flat
Built Form
End-Terrace
Constructed
before 1900
Certificate History
23 Apr 2017
56
76
Total Floor Area
41 sq m
Current CO2 Emissions Level
3.0
Potential CO2 Emissions Level
1.3
CO2 per sq m per Year
73
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
5 Henry Street
Date
17 Jul 2023
Current
Potential
63
86
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
17 Jul 2023
63
86
4 Aug 2013
55
83
Total Floor Area
80 sq m
Current CO2 Emissions Level
3.4
Potential CO2 Emissions Level
1.1
CO2 per sq m per Year
43
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
1
Address
7 Henry Street
Date
17 Jun 2015
Current
Potential
58
79
Property Type
House
Built Form
Mid-Terrace
Constructed
before 1900
Certificate History
17 Jun 2015
58
79
2 Sep 2009
27
39
Total Floor Area
79 sq m
Current CO2 Emissions Level
4.5
Potential CO2 Emissions Level
2.3
CO2 per sq m per Year
56
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
9 Henry Street
Date
20 Mar 2025
Current
Potential
68
87
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
20 Mar 2025
68
87
15 Apr 2015
59
85
Total Floor Area
76 sq m
Current CO2 Emissions Level
3.2
Potential CO2 Emissions Level
1.1
CO2 per sq m per Year
42
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
First Floor Flat, 13 Henry Street
Date
25 Aug 2009
Current
Potential
67
75
Property Type
Maisonette
Built Form
Mid-Terrace
Constructed
before 1900
Certificate History
25 Aug 2009
67
75
Total Floor Area
52 sq m
Current CO2 Emissions Level
2.7
Potential CO2 Emissions Level
2.1
CO2 per sq m per Year
52
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
2
Address
FIRST FLOOR FLAT, 13 HENRY STREET
Date
6 Apr 2021
Current
Potential
69
76
Property Type
Maisonette
Built Form
Mid-Terrace
Constructed
before 1900
Certificate History
6 Apr 2021
69
76
Total Floor Area
52 sq m
Current CO2 Emissions Level
2.2
Potential CO2 Emissions Level
1.6
CO2 per sq m per Year
43
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
2
Address
Flat 1, 15 Henry Street
Date
4 Dec 2018
Current
Potential
72
77
Property Type
Flat
Built Form
Semi-Detached
Constructed
before 1900
Certificate History
4 Dec 2018
72
77
7 Nov 2008
70
70
Total Floor Area
35 sq m
Current CO2 Emissions Level
1.5
Potential CO2 Emissions Level
1.1
CO2 per sq m per Year
43
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
Flat 2, 15 Henry Street
Date
25 Apr 2025
Current
Potential
58
78
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
25 Apr 2025
58
78
27 Mar 2013
49
77
Total Floor Area
52 sq m
Current CO2 Emissions Level
3.4
Potential CO2 Emissions Level
1.4
CO2 per sq m per Year
66
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
1
Address
Flat 3, 15 Henry Street
Date
15 Jan 2009
Current
Potential
64
74
Property Type
Flat
Built Form
Detached
Constructed
1967-1975
Certificate History
15 Jan 2009
64
74
Total Floor Area
36 sq m
Current CO2 Emissions Level
2.5
Potential CO2 Emissions Level
1.8
CO2 per sq m per Year
69
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
FLAT 3, 15 HENRY STREET
Date
6 Apr 2021
Current
Potential
67
76
Property Type
Flat
Built Form
Semi-Detached
Constructed
1976-1982
Certificate History
6 Apr 2021
67
76
Total Floor Area
35 sq m
Current CO2 Emissions Level
1.9
Potential CO2 Emissions Level
1.2
CO2 per sq m per Year
56
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
Flat 4, 15 Henry Street
Date
23 Jan 2009
Current
Potential
68
75
Property Type
Flat
Built Form
Detached
Constructed
1967-1975
Certificate History
23 Jan 2009
68
75
Total Floor Area
26 sq m
Current CO2 Emissions Level
1.8
Potential CO2 Emissions Level
1.4
CO2 per sq m per Year
67
Mains Gas Available
Yes
Habitable Rooms
1
Number of Extensions
0
Address
FLAT 4, 15 HENRY STREET
Date
6 Apr 2021
Current
Potential
68
74
Property Type
Maisonette
Built Form
Semi-Detached
Constructed
1976-1982
Certificate History
6 Apr 2021
68
74
Total Floor Area
27 sq m
Current CO2 Emissions Level
1.6
Potential CO2 Emissions Level
1.1
CO2 per sq m per Year
59
Mains Gas Available
Yes
Habitable Rooms
1
Number of Extensions
0
Address
Ground Floor Flat, 13 Henry Street
Date
4 Dec 2018
Current
Potential
66
74
Property Type
Flat
Built Form
Semi-Detached
Constructed
before 1900
Certificate History
4 Dec 2018
66
74
2 Oct 2008
65
71
Total Floor Area
45 sq m
Current CO2 Emissions Level
2.4
Potential CO2 Emissions Level
1.6
CO2 per sq m per Year
52
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
1
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 2026.