PROPERTY ENERGY EFFICIENCY CERTIFICATE DETAILS
Knaphill Crescent, NORTHAMPTON, NN4 8TE
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 Knaphill Crescent, NN4 8TE 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 Knaphill Crescent, NORTHAMPTON, NN4 8TE
Period Covered:
2008 - 31 January 2025
Address
Inspection Date
Current
Potential
Property Type
Built Form
Constructed
Address
1 Knaphill Crescent
Date
11 Feb 2022
Current
Potential
73
76
Property Type
Flat
Built Form
Detached
Constructed
1967-1975
Certificate History
11 Feb 2022
73
76
3 Mar 2012
68
69
Total Floor Area
64 sq m
Current CO2 Emissions Level
2.2
Potential CO2 Emissions Level
1.9
CO2 per sq m per Year
35
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
12 Knaphill Crescent
Date
3 Oct 2024
Current
Potential
74
78
Property Type
Flat
Built Form
Detached
Constructed
1976-1982
Certificate History
3 Oct 2024
74
78
20 Jan 2009
66
79
Total Floor Area
60 sq m
Current CO2 Emissions Level
1.9
Potential CO2 Emissions Level
1.5
CO2 per sq m per Year
32
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
13 Knaphill Crescent
Date
3 Feb 2009
Current
Potential
77
85
Property Type
House
Built Form
End-Terrace
Constructed
1976-1982
Certificate History
3 Feb 2009
77
85
Total Floor Area
66 sq m
Current CO2 Emissions Level
2.0
Potential CO2 Emissions Level
1.3
CO2 per sq m per Year
31
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
14 Knaphill Crescent
Date
2 Jul 2018
Current
Potential
70
75
Property Type
Flat
Built Form
Detached
Constructed
1967-1975
Certificate History
2 Jul 2018
70
75
Total Floor Area
60 sq m
Current CO2 Emissions Level
2.3
Potential CO2 Emissions Level
1.9
CO2 per sq m per Year
39
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
15 Knaphill Crescent
Date
4 Jun 2014
Current
Potential
66
75
Property Type
Flat
Built Form
Detached
Constructed
1967-1975
Certificate History
4 Jun 2014
66
75
Total Floor Area
62 sq m
Current CO2 Emissions Level
2.6
Potential CO2 Emissions Level
1.7
CO2 per sq m per Year
42
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
16 Knaphill Crescent
Date
2 Dec 2015
Current
Potential
77
78
Property Type
Flat
Built Form
Detached
Constructed
1967-1975
Certificate History
2 Dec 2015
77
78
15 Jun 2009
77
84
Total Floor Area
66 sq m
Current CO2 Emissions Level
1.7
Potential CO2 Emissions Level
1.6
CO2 per sq m per Year
26
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
17 Knaphill Crescent
Date
25 Jul 2010
Current
Potential
74
81
Property Type
Flat
Built Form
End-Terrace
Constructed
1983-1990
Certificate History
25 Jul 2010
74
81
Total Floor Area
62 sq m
Current CO2 Emissions Level
2.3
Potential CO2 Emissions Level
1.7
CO2 per sq m per Year
37
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
19 Knaphill Crescent
Date
30 May 2024
Current
Potential
73
86
Property Type
House
Built Form
Mid-Terrace
Constructed
1976-1982
Certificate History
30 May 2024
73
86
Total Floor Area
76 sq m
Current CO2 Emissions Level
2.5
Potential CO2 Emissions Level
1.2
CO2 per sq m per Year
33
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
2 Knaphill Crescent
Date
23 Feb 2024
Current
Potential
79
79
Property Type
Flat
Built Form
Semi-Detached
Constructed
1967-1975
Certificate History
23 Feb 2024
79
79
13 May 2012
78
80
Total Floor Area
65 sq m
Current CO2 Emissions Level
1.5
Potential CO2 Emissions Level
1.5
CO2 per sq m per Year
23
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
21 Knaphill Crescent
Date
30 Oct 2015
Current
Potential
60
84
Property Type
House
Built Form
Semi-Detached
Constructed
1967-1975
Certificate History
30 Oct 2015
60
84
22 Jul 2009
60
70
Total Floor Area
128 sq m
Current CO2 Emissions Level
6.2
Potential CO2 Emissions Level
2.3
CO2 per sq m per Year
48
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
23 Knaphill Crescent
Date
5 Feb 2024
Current
Potential
74
76
Property Type
Flat
Built Form
Semi-Detached
Constructed
1967-1975
Certificate History
5 Feb 2024
74
76
3 Dec 2011
71
76
24 Aug 2009
75
79
Total Floor Area
65 sq m
Current CO2 Emissions Level
2.1
Potential CO2 Emissions Level
1.9
CO2 per sq m per Year
33
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
24 Knaphill Crescent
Date
7 Apr 2022
Current
Potential
80
80
Property Type
Flat
Built Form
Detached
Constructed
1983-1990
Certificate History
7 Apr 2022
80
80
11 Jun 2009
74
84
Total Floor Area
60 sq m
Current CO2 Emissions Level
1.4
Potential CO2 Emissions Level
1.4
CO2 per sq m per Year
23
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
25 Knaphill Crescent
Date
26 Feb 2024
Current
Potential
74
76
Property Type
Flat
Built Form
Semi-Detached
Constructed
1967-1975
Certificate History
26 Feb 2024
74
76
12 Nov 2008
71
83
Total Floor Area
50 sq m
Current CO2 Emissions Level
1.7
Potential CO2 Emissions Level
1.5
CO2 per sq m per Year
33
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
26 Knaphill Crescent
Date
30 Dec 2019
Current
Potential
74
77
Property Type
Flat
Built Form
Detached
Constructed
1976-1982
Certificate History
30 Dec 2019
74
77
Total Floor Area
61 sq m
Current CO2 Emissions Level
2.0
Potential CO2 Emissions Level
1.6
CO2 per sq m per Year
32
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
27 Knaphill Crescent
Date
5 Feb 2024
Current
Potential
79
79
Property Type
Flat
Built Form
Semi-Detached
Constructed
1967-1975
Certificate History
5 Feb 2024
79
79
20 Jan 2015
77
78
Total Floor Area
65 sq m
Current CO2 Emissions Level
1.5
Potential CO2 Emissions Level
1.5
CO2 per sq m per Year
23
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
28 Knaphill Crescent
Date
3 Nov 2022
Current
Potential
53
76
Property Type
Flat
Built Form
Detached
Constructed
1967-1975
Certificate History
3 Nov 2022
53
76
Total Floor Area
62 sq m
Current CO2 Emissions Level
4.4
Potential CO2 Emissions Level
1.8
CO2 per sq m per Year
72
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
3 Knaphill Crescent
Date
23 Feb 2024
Current
Potential
76
76
Property Type
Flat
Built Form
Semi-Detached
Constructed
1967-1975
Certificate History
23 Feb 2024
76
76
Total Floor Area
65 sq m
Current CO2 Emissions Level
1.8
Potential CO2 Emissions Level
1.8
CO2 per sq m per Year
28
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
31 Knaphill Crescent
Date
7 Mar 2024
Current
Potential
73
76
Property Type
Flat
Built Form
Semi-Detached
Constructed
1967-1975
Certificate History
7 Mar 2024
73
76
Total Floor Area
60 sq m
Current CO2 Emissions Level
2.1
Potential CO2 Emissions Level
1.8
CO2 per sq m per Year
34
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
32 Knaphill Crescent
Date
29 Feb 2024
Current
Potential
79
79
Property Type
Flat
Built Form
Semi-Detached
Constructed
1967-1975
Certificate History
29 Feb 2024
79
79
20 Feb 2013
79
81
10 Sep 2009
72
85
Total Floor Area
60 sq m
Current CO2 Emissions Level
1.5
Potential CO2 Emissions Level
1.5
CO2 per sq m per Year
24
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
33 Knaphill Crescent
Date
4 Mar 2024
Current
Potential
76
76
Property Type
Flat
Built Form
Semi-Detached
Constructed
1967-1975
Certificate History
4 Mar 2024
76
76
Total Floor Area
60 sq m
Current CO2 Emissions Level
1.8
Potential CO2 Emissions Level
1.8
CO2 per sq m per Year
29
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
34 Knaphill Crescent
Date
2 Sep 2010
Current
Potential
78
79
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1976-1982
Certificate History
2 Sep 2010
78
79
Total Floor Area
45 sq m
Current CO2 Emissions Level
1.7
Potential CO2 Emissions Level
1.6
CO2 per sq m per Year
37
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
36 Knaphill Crescent
Date
4 Jul 2016
Current
Potential
64
77
Property Type
Flat
Built Form
Detached
Constructed
1976-1982
Certificate History
4 Jul 2016
64
77
Total Floor Area
65 sq m
Current CO2 Emissions Level
3.2
Potential CO2 Emissions Level
1.7
CO2 per sq m per Year
49
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
37 Knaphill Crescent
Date
9 Feb 2016
Current
Potential
69
85
Property Type
House
Built Form
End-Terrace
Constructed
1991-1995
Certificate History
9 Feb 2016
69
85
Total Floor Area
79 sq m
Current CO2 Emissions Level
3.1
Potential CO2 Emissions Level
1.5
CO2 per sq m per Year
39
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
38 Knaphill Crescent
Date
6 Dec 2021
Current
Potential
57
83
Property Type
House
Built Form
Mid-Terrace
Constructed
1976-1982
Certificate History
6 Dec 2021
57
83
Total Floor Area
75 sq m
Current CO2 Emissions Level
4.4
Potential CO2 Emissions Level
1.6
CO2 per sq m per Year
59
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
1
Address
39 Knaphill Crescent
Date
9 Dec 2015
Current
Potential
74
78
Property Type
Flat
Built Form
End-Terrace
Constructed
1976-1982
Certificate History
9 Dec 2015
74
78
Total Floor Area
68 sq m
Current CO2 Emissions Level
2.1
Potential CO2 Emissions Level
1.7
CO2 per sq m per Year
31
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
4 Knaphill Crescent
Date
18 Nov 2021
Current
Potential
73
76
Property Type
Flat
Built Form
Semi-Detached
Constructed
1983-1990
Certificate History
18 Nov 2021
73
76
Total Floor Area
53 sq m
Current CO2 Emissions Level
1.9
Potential CO2 Emissions Level
1.6
CO2 per sq m per Year
36
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
40 Knaphill Crescent
Date
14 Mar 2022
Current
Potential
78
78
Property Type
Flat
Built Form
Detached
Constructed
1983-1990
Certificate History
14 Mar 2022
78
78
13 Sep 2009
57
84
Total Floor Area
61 sq m
Current CO2 Emissions Level
1.5
Potential CO2 Emissions Level
1.5
CO2 per sq m per Year
25
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
41 Knaphill Crescent
Date
5 Oct 2008
Current
Potential
76
82
Property Type
House
Built Form
Enclosed End-Terrace
Constructed
1976-1982
Certificate History
5 Oct 2008
76
82
Total Floor Area
66 sq m
Current CO2 Emissions Level
2.2
Potential CO2 Emissions Level
1.6
CO2 per sq m per Year
33
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
42 Knaphill Crescent
Date
16 Jan 2024
Current
Potential
74
77
Property Type
Flat
Built Form
Detached
Constructed
1983-1990
Certificate History
16 Jan 2024
74
77
Total Floor Area
61 sq m
Current CO2 Emissions Level
2.0
Potential CO2 Emissions Level
1.6
CO2 per sq m per Year
32
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
43 Knaphill Crescent
Date
12 Feb 2024
Current
Potential
78
78
Property Type
Flat
Built Form
Semi-Detached
Constructed
1967-1975
Certificate History
12 Feb 2024
78
78
16 May 2012
61
73
Total Floor Area
50 sq m
Current CO2 Emissions Level
1.3
Potential CO2 Emissions Level
1.3
CO2 per sq m per Year
26
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
44 Knaphill Crescent
Date
18 Jul 2017
Current
Potential
62
68
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1976-1982
Certificate History
18 Jul 2017
62
68
Total Floor Area
76 sq m
Current CO2 Emissions Level
3.8
Potential CO2 Emissions Level
3.1
CO2 per sq m per Year
50
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
5 Knaphill Crescent
Date
20 Sep 2010
Current
Potential
83
85
Property Type
Flat
Built Form
End-Terrace
Constructed
1976-1982
Certificate History
20 Sep 2010
83
85
Total Floor Area
58 sq m
Current CO2 Emissions Level
1.3
Potential CO2 Emissions Level
1.3
CO2 per sq m per Year
22
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
6 Knaphill Crescent
Date
21 Feb 2024
Current
Potential
78
78
Property Type
Flat
Built Form
Semi-Detached
Constructed
1967-1975
Certificate History
21 Feb 2024
78
78
16 Jul 2014
67
68
Total Floor Area
50 sq m
Current CO2 Emissions Level
1.3
Potential CO2 Emissions Level
1.3
CO2 per sq m per Year
26
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
8 Knaphill Crescent
Date
30 May 2024
Current
Potential
72
85
Property Type
House
Built Form
End-Terrace
Constructed
1976-1982
Certificate History
30 May 2024
72
85
Total Floor Area
93 sq m
Current CO2 Emissions Level
3.1
Potential CO2 Emissions Level
1.7
CO2 per sq m per Year
33
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
9 Knaphill Crescent
Date
30 May 2024
Current
Potential
72
85
Property Type
House
Built Form
End-Terrace
Constructed
1976-1982
Certificate History
30 May 2024
72
85
Total Floor Area
93 sq m
Current CO2 Emissions Level
3.1
Potential CO2 Emissions Level
1.7
CO2 per sq m per Year
33
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.