PROPERTY ENERGY EFFICIENCY CERTIFICATE DETAILS
Northwick Avenue, HARROW, HA3 0AB
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 Northwick Avenue, HA3 0AB 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 Northwick Avenue, HARROW, HA3 0AB
Period Covered:
2008 - 31 January 2025
Address
Inspection Date
Current
Potential
Property Type
Built Form
Constructed
Address
10 Northwick Avenue
Date
1 Sep 2022
Current
Potential
83
93
Property Type
House
Built Form
Semi-Detached
Constructed
1930-1949
Certificate History
1 Sep 2022
83
93
17 Oct 2008
55
62
Total Floor Area
117 sq m
Current CO2 Emissions Level
2.5
Potential CO2 Emissions Level
0.8
CO2 per sq m per Year
22
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
1
Address
12 Northwick Avenue
Date
30 Jul 2012
Current
Potential
76
91
Property Type
House
Built Form
Semi-Detached
Constructed
1900-1929
Certificate History
30 Jul 2012
76
91
Total Floor Area
203 sq m
Current CO2 Emissions Level
5.0
Potential CO2 Emissions Level
1.8
CO2 per sq m per Year
25
Mains Gas Available
Yes
Habitable Rooms
7
Number of Extensions
0
Address
16 Northwick Avenue
Date
20 Mar 2015
Current
Potential
43
76
Property Type
House
Built Form
Detached
Constructed
1930-1949
Certificate History
20 Mar 2015
43
76
16 Aug 2009
61
70
16 Aug 2009
64
69
16 Aug 2009
64
69
Total Floor Area
108 sq m
Current CO2 Emissions Level
7.4
Potential CO2 Emissions Level
3.0
CO2 per sq m per Year
68
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
18 Northwick Avenue
Date
20 Mar 2019
Current
Potential
78
84
Property Type
House
Built Form
Semi-Detached
Constructed
1900-1929
Certificate History
20 Mar 2019
78
84
Total Floor Area
328 sq m
Current CO2 Emissions Level
7.0
Potential CO2 Emissions Level
5.1
CO2 per sq m per Year
21
Mains Gas Available
Yes
Habitable Rooms
8
Number of Extensions
2
Address
18a Northwick Avenue
Date
20 Mar 2019
Current
Potential
75
75
Property Type
Maisonette
Built Form
Semi-Detached
Constructed
1996-2002
Certificate History
20 Mar 2019
75
75
Total Floor Area
84 sq m
Current CO2 Emissions Level
2.3
Potential CO2 Emissions Level
2.3
CO2 per sq m per Year
27
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
1
Address
2 Northwick Avenue
Date
10 Sep 2023
Current
Potential
79
85
Property Type
House
Built Form
Semi-Detached
Constructed
2012 onwards
Certificate History
10 Sep 2023
79
85
17 Sep 2013
58
69
Total Floor Area
228 sq m
Current CO2 Emissions Level
4.6
Potential CO2 Emissions Level
3.4
CO2 per sq m per Year
20
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
20 Northwick Avenue
Date
12 Mar 2019
Current
Potential
76
85
Property Type
House
Built Form
Semi-Detached
Constructed
1930-1949
Certificate History
12 Mar 2019
76
85
17 Nov 2016
49
78
Total Floor Area
210 sq m
Current CO2 Emissions Level
5.0
Potential CO2 Emissions Level
3.1
CO2 per sq m per Year
24
Mains Gas Available
Yes
Habitable Rooms
7
Number of Extensions
2
Address
20a Northwick Avenue
Date
24 Oct 2016
Current
Potential
46
77
Property Type
House
Built Form
Detached
Constructed
1950-1966
Certificate History
24 Oct 2016
46
77
26 May 2010
55
67
Total Floor Area
147 sq m
Current CO2 Emissions Level
7.9
Potential CO2 Emissions Level
3.2
CO2 per sq m per Year
54
Mains Gas Available
Yes
Habitable Rooms
7
Number of Extensions
3
Address
22 Northwick Avenue
Date
8 Jun 2020
Current
Potential
62
79
Property Type
House
Built Form
Semi-Detached
Constructed
1930-1949
Certificate History
8 Jun 2020
62
79
Total Floor Area
109 sq m
Current CO2 Emissions Level
4.8
Potential CO2 Emissions Level
2.6
CO2 per sq m per Year
44
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
1
Address
24 Northwick Avenue
Date
10 Aug 2015
Current
Potential
45
69
Property Type
House
Built Form
Semi-Detached
Constructed
1930-1949
Certificate History
10 Aug 2015
45
69
Total Floor Area
137 sq m
Current CO2 Emissions Level
8.6
Potential CO2 Emissions Level
4.7
CO2 per sq m per Year
63
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
1
Address
26 Northwick Avenue
Date
30 Jul 2017
Current
Potential
55
74
Property Type
House
Built Form
Detached
Constructed
1930-1949
Certificate History
30 Jul 2017
55
74
Total Floor Area
131 sq m
Current CO2 Emissions Level
6.8
Potential CO2 Emissions Level
3.9
CO2 per sq m per Year
51
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
1
Address
32 Northwick Avenue
Date
14 Dec 2015
Current
Potential
53
85
Property Type
House
Built Form
Semi-Detached
Constructed
1930-1949
Certificate History
14 Dec 2015
53
85
Total Floor Area
108 sq m
Current CO2 Emissions Level
6.0
Potential CO2 Emissions Level
1.7
CO2 per sq m per Year
55
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
36 Northwick Avenue
Date
12 Aug 2024
Current
Potential
65
84
Property Type
House
Built Form
Semi-Detached
Constructed
1900-1929
Certificate History
12 Aug 2024
65
84
20 Mar 2024
63
80
Total Floor Area
168 sq m
Current CO2 Emissions Level
6.2
Potential CO2 Emissions Level
2.7
CO2 per sq m per Year
37
Mains Gas Available
Yes
Habitable Rooms
7
Number of Extensions
1
Address
38a Northwick Avenue
Date
6 Aug 2017
Current
Potential
72
85
Property Type
House
Built Form
Detached
Constructed
2003-2006
Certificate History
6 Aug 2017
72
85
Total Floor Area
117 sq m
Current CO2 Emissions Level
3.4
Potential CO2 Emissions Level
1.8
CO2 per sq m per Year
29
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
1
Address
40 Northwick Avenue
Date
20 Jul 2024
Current
Potential
78
79
Property Type
Flat
Built Form
Detached
Constructed
1930-1949
Certificate History
20 Jul 2024
78
79
17 Apr 2010
48
48
Total Floor Area
84 sq m
Current CO2 Emissions Level
1.9
Potential CO2 Emissions Level
1.8
CO2 per sq m per Year
23
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
40a Northwick Avenue
Date
17 Jul 2022
Current
Potential
60
79
Property Type
Flat
Built Form
Detached
Constructed
1930-1949
Certificate History
17 Jul 2022
60
79
Total Floor Area
79 sq m
Current CO2 Emissions Level
4.0
Potential CO2 Emissions Level
1.7
CO2 per sq m per Year
51
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
1
Address
42 Northwick Avenue
Date
16 Sep 2019
Current
Potential
56
75
Property Type
House
Built Form
Semi-Detached
Constructed
1930-1949
Certificate History
16 Sep 2019
56
75
Total Floor Area
142 sq m
Current CO2 Emissions Level
6.9
Potential CO2 Emissions Level
3.9
CO2 per sq m per Year
49
Mains Gas Available
Yes
Habitable Rooms
8
Number of Extensions
2
Address
44 Northwick Avenue
Date
29 Jul 2010
Current
Potential
53
62
Property Type
House
Built Form
Semi-Detached
Constructed
1900-1929
Certificate History
29 Jul 2010
53
62
Total Floor Area
139 sq m
Current CO2 Emissions Level
7.4
Potential CO2 Emissions Level
6.2
CO2 per sq m per Year
53
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
48 Northwick Avenue
Date
24 Oct 2016
Current
Potential
55
55
Property Type
Flat
Built Form
N/A
Constructed
N/A
Certificate History
24 Oct 2016
55
55
31 Oct 2013
41
80
16 Oct 2012
50
83
17 Jun 2012
49
84
Total Floor Area
95 sq m
Current CO2 Emissions Level
5.3
Potential CO2 Emissions Level
5.3
CO2 per sq m per Year
55
Mains Gas Available
No
Habitable Rooms
0
Number of Extensions
0
Address
48a Northwick Avenue
Date
24 Oct 2016
Current
Potential
47
47
Property Type
Flat
Built Form
N/A
Constructed
N/A
Certificate History
24 Oct 2016
47
47
Total Floor Area
101 sq m
Current CO2 Emissions Level
6.6
Potential CO2 Emissions Level
6.6
CO2 per sq m per Year
65
Mains Gas Available
No
Habitable Rooms
0
Number of Extensions
0
Address
4a Northwick Avenue
Date
24 Mar 2012
Current
Potential
60
71
Property Type
House
Built Form
End-Terrace
Constructed
1976-1982
Certificate History
24 Mar 2012
60
71
Total Floor Area
92 sq m
Current CO2 Emissions Level
5.2
Potential CO2 Emissions Level
3.5
CO2 per sq m per Year
47
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
1
Address
4c Northwick Avenue
Date
21 Jun 2010
Current
Potential
75
77
Property Type
House
Built Form
Mid-Terrace
Constructed
1950-1966
Certificate History
21 Jun 2010
75
77
Total Floor Area
97 sq m
Current CO2 Emissions Level
3.1
Potential CO2 Emissions Level
2.8
CO2 per sq m per Year
32
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
50 Northwick Avenue
Date
26 Sep 2017
Current
Potential
45
70
Property Type
House
Built Form
Detached
Constructed
1930-1949
Certificate History
26 Sep 2017
45
70
Total Floor Area
214 sq m
Current CO2 Emissions Level
12.0
Potential CO2 Emissions Level
6.4
CO2 per sq m per Year
58
Mains Gas Available
Yes
Habitable Rooms
9
Number of Extensions
2
Address
52 Northwick Avenue
Date
15 Apr 2014
Current
Potential
57
83
Property Type
House
Built Form
Semi-Detached
Constructed
1930-1949
Certificate History
15 Apr 2014
57
83
Total Floor Area
107 sq m
Current CO2 Emissions Level
5.2
Potential CO2 Emissions Level
1.8
CO2 per sq m per Year
48
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
1
Address
66 Northwick Avenue
Date
28 Jun 2012
Current
Potential
56
81
Property Type
House
Built Form
Semi-Detached
Constructed
1930-1949
Certificate History
28 Jun 2012
56
81
Total Floor Area
97 sq m
Current CO2 Emissions Level
5.1
Potential CO2 Emissions Level
1.9
CO2 per sq m per Year
52
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
66 NORTHWICK AVENUE, HARROW
Date
15 Oct 2020
Current
Potential
65
76
Property Type
Flat
Built Form
Semi-Detached
Constructed
1930-1949
Certificate History
15 Oct 2020
65
76
Total Floor Area
77 sq m
Current CO2 Emissions Level
3.4
Potential CO2 Emissions Level
2.0
CO2 per sq m per Year
43
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
1
Address
66a Northwick Avenue
Date
12 Apr 2015
Current
Potential
53
63
Property Type
Flat
Built Form
Semi-Detached
Constructed
1930-1949
Certificate History
12 Apr 2015
53
63
Total Floor Area
67 sq m
Current CO2 Emissions Level
4.3
Potential CO2 Emissions Level
3.2
CO2 per sq m per Year
64
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
1
Address
68a Northwick Avenue
Date
12 May 2021
Current
Potential
67
77
Property Type
Flat
Built Form
Semi-Detached
Constructed
1930-1949
Certificate History
12 May 2021
67
77
Total Floor Area
62 sq m
Current CO2 Emissions Level
2.6
Potential CO2 Emissions Level
1.6
CO2 per sq m per Year
43
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
1
Address
8 Northwick Avenue
Date
8 Feb 2012
Current
Potential
52
59
Property Type
House
Built Form
Semi-Detached
Constructed
1930-1949
Certificate History
8 Feb 2012
52
59
7 Sep 2009
62
69
Total Floor Area
138 sq m
Current CO2 Emissions Level
7.1
Potential CO2 Emissions Level
6.0
CO2 per sq m per Year
52
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
2
Address
Flat 1, 22 Northwick Avenue
Date
21 Sep 2009
Current
Potential
84
85
Property Type
Flat
Built Form
Semi-Detached
Constructed
1930-1949
Certificate History
21 Sep 2009
84
85
Total Floor Area
24 sq m
Current CO2 Emissions Level
0.9
Potential CO2 Emissions Level
0.9
CO2 per sq m per Year
37
Mains Gas Available
Yes
Habitable Rooms
1
Number of Extensions
0
Address
Flat 2, 22 Northwick Avenue
Date
21 Sep 2009
Current
Potential
84
85
Property Type
Flat
Built Form
Enclosed Mid-Terrace
Constructed
1930-1949
Certificate History
21 Sep 2009
84
85
Total Floor Area
20 sq m
Current CO2 Emissions Level
0.8
Potential CO2 Emissions Level
0.8
CO2 per sq m per Year
42
Mains Gas Available
Yes
Habitable Rooms
1
Number of Extensions
0
Address
Flat 3, 22 Northwick Avenue
Date
21 Sep 2009
Current
Potential
77
78
Property Type
Flat
Built Form
Semi-Detached
Constructed
1930-1949
Certificate History
21 Sep 2009
77
78
Total Floor Area
20 sq m
Current CO2 Emissions Level
1.2
Potential CO2 Emissions Level
1.2
CO2 per sq m per Year
61
Mains Gas Available
Yes
Habitable Rooms
1
Number of Extensions
0
Address
Flat 4, 22 Northwick Avenue
Date
21 Sep 2009
Current
Potential
84
85
Property Type
Flat
Built Form
Semi-Detached
Constructed
1930-1949
Certificate History
21 Sep 2009
84
85
Total Floor Area
20 sq m
Current CO2 Emissions Level
0.8
Potential CO2 Emissions Level
0.8
CO2 per sq m per Year
41
Mains Gas Available
Yes
Habitable Rooms
1
Number of Extensions
0
Address
Flat 5, 22 Northwick Avenue
Date
21 Sep 2009
Current
Potential
84
85
Property Type
Flat
Built Form
Enclosed Mid-Terrace
Constructed
1930-1949
Certificate History
21 Sep 2009
84
85
Total Floor Area
20 sq m
Current CO2 Emissions Level
0.8
Potential CO2 Emissions Level
0.8
CO2 per sq m per Year
41
Mains Gas Available
Yes
Habitable Rooms
1
Number of Extensions
0
Address
Flat 6, 22 Northwick Avenue
Date
21 Sep 2009
Current
Potential
80
80
Property Type
Flat
Built Form
Semi-Detached
Constructed
1930-1949
Certificate History
21 Sep 2009
80
80
Total Floor Area
20 sq m
Current CO2 Emissions Level
1.1
Potential CO2 Emissions Level
1.1
CO2 per sq m per Year
54
Mains Gas Available
Yes
Habitable Rooms
1
Number of Extensions
0
Address
Ground Floor Flat, 40 Northwick Avenue
Date
21 Jul 2022
Current
Potential
73
79
Property Type
Flat
Built Form
Semi-Detached
Constructed
1930-1949
Certificate History
21 Jul 2022
73
79
Total Floor Area
69 sq m
Current CO2 Emissions Level
2.1
Potential CO2 Emissions Level
1.6
CO2 per sq m per Year
31
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
1
Address
Yogi Krupa Villa, 2A Northwick Avenue
Date
2 Apr 2019
Current
Potential
83
93
Property Type
House
Built Form
Semi-Detached
Constructed
N/A
Certificate History
2 Apr 2019
83
93
Total Floor Area
113 sq m
Current CO2 Emissions Level
1.8
Potential CO2 Emissions Level
0.6
CO2 per sq m per Year
16
Mains Gas Available
No
Habitable Rooms
0
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.