PROPERTY ENERGY EFFICIENCY CERTIFICATE DETAILS
Goodwyn Avenue, LONDON, NW7 3RJ

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 Goodwyn Avenue, NW7 3RJ 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 Goodwyn Avenue, LONDON, NW7 3RJ
Period Covered: 2008 - 31 October 2024

Address
Inspection Date
Current
Potential
Property Type
Built Form
Constructed
Address
1 Goodwyn Avenue
Date
10 Jul 2013
Current
Potential
61
78
Property Type
House
Built Form
Detached
Constructed
1900-1929
+
Certificate History
10 Jul 2013
61
78
25 Apr 2010
48
61
Total Floor Area
238 sq m
Current CO2 Emissions Level
9.3
Potential CO2 Emissions Level
5.1
CO2 per sq m per Year
39
Mains Gas Available
Yes
Habitable Rooms
8
Number of Extensions
2
Address
11a Goodwyn Avenue
Date
18 Dec 2014
Current
Potential
65
77
Property Type
Flat
Built Form
Semi-Detached
Constructed
1930-1949
+
Certificate History
18 Dec 2014
65
77
20 Jul 2011
65
67
Total Floor Area
59 sq m
Current CO2 Emissions Level
2.7
Potential CO2 Emissions Level
1.6
CO2 per sq m per Year
46
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
13a Goodwyn Avenue
Date
23 Sep 2019
Current
Potential
56
73
Property Type
Maisonette
Built Form
Semi-Detached
Constructed
1930-1949
+
Certificate History
23 Sep 2019
56
73
6 Oct 2008
66
74
Total Floor Area
87 sq m
Current CO2 Emissions Level
4.9
Potential CO2 Emissions Level
2.7
CO2 per sq m per Year
56
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
15a Goodwyn Avenue
Date
22 Dec 2008
Current
Potential
64
66
Property Type
Maisonette
Built Form
Semi-Detached
Constructed
1930-1949
+
Certificate History
22 Dec 2008
64
66
Total Floor Area
86 sq m
Current CO2 Emissions Level
4.1
Potential CO2 Emissions Level
4.0
CO2 per sq m per Year
48
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
17a Goodwyn Avenue
Date
23 Mar 2017
Current
Potential
52
77
Property Type
Flat
Built Form
Semi-Detached
Constructed
1900-1929
+
Certificate History
23 Mar 2017
52
77
Total Floor Area
64 sq m
Current CO2 Emissions Level
4.3
Potential CO2 Emissions Level
1.7
CO2 per sq m per Year
67
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
19 Goodwyn Avenue
Date
27 Sep 2016
Current
Potential
68
76
Property Type
Flat
Built Form
Semi-Detached
Constructed
1900-1929
+
Certificate History
27 Sep 2016
68
76
Total Floor Area
80 sq m
Current CO2 Emissions Level
3.2
Potential CO2 Emissions Level
2.2
CO2 per sq m per Year
40
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
1
Address
19a Goodwyn Avenue
Date
18 Oct 2011
Current
Potential
62
63
Property Type
Maisonette
Built Form
Detached
Constructed
1930-1949
+
Certificate History
18 Oct 2011
62
63
Total Floor Area
47 sq m
Current CO2 Emissions Level
2.6
Potential CO2 Emissions Level
2.5
CO2 per sq m per Year
55
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
21 Goodwyn Avenue
Date
20 Nov 2024
Current
Potential
79
84
Property Type
House
Built Form
Semi-Detached
Constructed
2024
+
Certificate History
20 Nov 2024
79
84
18 Mar 2015
56
65
18 Jul 2014
61
75
Total Floor Area
124 sq m
Current CO2 Emissions Level
2.5
Potential CO2 Emissions Level
2.3
CO2 per sq m per Year
19
Mains Gas Available
No
Habitable Rooms
0
Number of Extensions
0
Address
21a Goodwyn Avenue
Date
14 Mar 2024
Current
Potential
65
77
Property Type
Flat
Built Form
Semi-Detached
Constructed
1930-1949
+
Certificate History
14 Mar 2024
65
77
Total Floor Area
49 sq m
Current CO2 Emissions Level
2.4
Potential CO2 Emissions Level
1.3
CO2 per sq m per Year
49
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
31 Goodwyn Avenue
Date
7 Jan 2021
Current
Potential
67
77
Property Type
Flat
Built Form
Semi-Detached
Constructed
1930-1949
+
Certificate History
7 Jan 2021
67
77
Total Floor Area
61 sq m
Current CO2 Emissions Level
2.6
Potential CO2 Emissions Level
1.6
CO2 per sq m per Year
42
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
31a Goodwyn Avenue
Date
14 Sep 2016
Current
Potential
60
65
Property Type
Flat
Built Form
Semi-Detached
Constructed
1950-1966
+
Certificate History
14 Sep 2016
60
65
Total Floor Area
69 sq m
Current CO2 Emissions Level
3.7
Potential CO2 Emissions Level
3.2
CO2 per sq m per Year
54
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
33 Goodwyn Avenue
Date
23 Jan 2019
Current
Potential
63
73
Property Type
House
Built Form
Detached
Constructed
1930-1949
+
Certificate History
23 Jan 2019
63
73
13 Apr 2010
40
64
Total Floor Area
220 sq m
Current CO2 Emissions Level
8.8
Potential CO2 Emissions Level
6.6
CO2 per sq m per Year
40
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
1
Address
37 Goodwyn Avenue
Date
5 Apr 2022
Current
Potential
78
80
Property Type
Flat
Built Form
Semi-Detached
Constructed
1930-1949
+
Certificate History
5 Apr 2022
78
80
Total Floor Area
93 sq m
Current CO2 Emissions Level
2.2
Potential CO2 Emissions Level
1.9
CO2 per sq m per Year
23
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
1
Address
37a Goodwyn Avenue
Date
18 Dec 2021
Current
Potential
68
77
Property Type
Flat
Built Form
Semi-Detached
Constructed
1930-1949
+
Certificate History
18 Dec 2021
68
77
20 Nov 2008
67
77
Total Floor Area
72 sq m
Current CO2 Emissions Level
2.8
Potential CO2 Emissions Level
1.9
CO2 per sq m per Year
40
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
1
Address
39 Goodwyn Avenue
Date
24 Jun 2015
Current
Potential
27
68
Property Type
House
Built Form
Semi-Detached
Constructed
1930-1949
+
Certificate History
24 Jun 2015
27
68
Total Floor Area
128 sq m
Current CO2 Emissions Level
12.0
Potential CO2 Emissions Level
4.9
CO2 per sq m per Year
97
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
0
Address
47 Goodwyn Avenue
Date
25 Apr 2022
Current
Potential
71
79
Property Type
Maisonette
Built Form
Semi-Detached
Constructed
1900-1929
+
Certificate History
25 Apr 2022
71
79
Total Floor Area
101 sq m
Current CO2 Emissions Level
3.4
Potential CO2 Emissions Level
2.1
CO2 per sq m per Year
33
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
47a Goodwyn Avenue
Date
15 Jun 2014
Current
Potential
55
64
Property Type
Maisonette
Built Form
Semi-Detached
Constructed
1930-1949
+
Certificate History
15 Jun 2014
55
64
27 Aug 2009
40
59
Total Floor Area
85 sq m
Current CO2 Emissions Level
4.6
Potential CO2 Emissions Level
3.6
CO2 per sq m per Year
54
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
49 Goodwyn Avenue
Date
15 Oct 2010
Current
Potential
55
69
Property Type
Maisonette
Built Form
Semi-Detached
Constructed
1930-1949
+
Certificate History
15 Oct 2010
55
69
Total Floor Area
60 sq m
Current CO2 Emissions Level
4.0
Potential CO2 Emissions Level
2.8
CO2 per sq m per Year
67
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
1
Address
49a Goodwyn Avenue
Date
19 Apr 2022
Current
Potential
71
78
Property Type
Flat
Built Form
Semi-Detached
Constructed
1900-1929
+
Certificate History
19 Apr 2022
71
78
25 Apr 2012
68
77
Total Floor Area
52 sq m
Current CO2 Emissions Level
2.0
Potential CO2 Emissions Level
1.3
CO2 per sq m per Year
38
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
51A GOODWYN AVENUE, MILL HILL
Date
12 Oct 2020
Current
Potential
70
75
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1900-1929
+
Certificate History
12 Oct 2020
70
75
Total Floor Area
94 sq m
Current CO2 Emissions Level
3.2
Potential CO2 Emissions Level
2.6
CO2 per sq m per Year
34
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
51B GOODWYN AVENUE, MILL HILL
Date
12 Oct 2020
Current
Potential
59
70
Property Type
Flat
Built Form
End-Terrace
Constructed
1967-1975
+
Certificate History
12 Oct 2020
59
70
Total Floor Area
34 sq m
Current CO2 Emissions Level
2.5
Potential CO2 Emissions Level
1.6
CO2 per sq m per Year
72
Mains Gas Available
Yes
Habitable Rooms
1
Number of Extensions
1
Address
7 Goodwyn Avenue
Date
20 Nov 2019
Current
Potential
67
75
Property Type
Flat
Built Form
Detached
Constructed
1930-1949
+
Certificate History
20 Nov 2019
67
75
Total Floor Area
75 sq m
Current CO2 Emissions Level
3.1
Potential CO2 Emissions Level
2.1
CO2 per sq m per Year
42
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
1
Address
7a Goodwyn Avenue
Date
7 Feb 2020
Current
Potential
65
74
Property Type
Flat
Built Form
Detached
Constructed
1900-1929
+
Certificate History
7 Feb 2020
65
74
30 Oct 2008
64
73
Total Floor Area
63 sq m
Current CO2 Emissions Level
2.9
Potential CO2 Emissions Level
2.0
CO2 per sq m per Year
46
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
Flat 1 47A GOODWYN AVENUE, MILL HILL
Date
17 Feb 2021
Current
Potential
75
83
Property Type
Flat
Built Form
Semi-Detached
Constructed
1900-1929
+
Certificate History
17 Feb 2021
75
83
Total Floor Area
84 sq m
Current CO2 Emissions Level
2.3
Potential CO2 Emissions Level
1.4
CO2 per sq m per Year
28
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
Flat 2, 47a Goodwyn Avenue
Date
17 Jun 2021
Current
Potential
78
78
Property Type
Maisonette
Built Form
Semi-Detached
Constructed
2003-2006
+
Certificate History
17 Jun 2021
78
78
Total Floor Area
53 sq m
Current CO2 Emissions Level
1.3
Potential CO2 Emissions Level
1.3
CO2 per sq m per Year
25
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Bands

A
92 - 100
B
81 - 91
C
69 - 80
D
55 -68
E
39 -54
F
54 -38
G
0 - 20

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.