PROPERTY ENERGY EFFICIENCY CERTIFICATE DETAILS
Ash Tree Dell, LONDON, NW9 0AG

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 Ash Tree Dell, NW9 0AG 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 Ash Tree Dell, LONDON, NW9 0AG
Period Covered: 2008 - 31 October 2024

Address
Inspection Date
Current
Potential
Property Type
Built Form
Constructed
Address
11 Ash Tree Dell
Date
15 Dec 2009
Current
Potential
65
74
Property Type
Maisonette
Built Form
End-Terrace
Constructed
1930-1949
+
Certificate History
15 Dec 2009
65
74
Total Floor Area
72 sq m
Current CO2 Emissions Level
3.5
Potential CO2 Emissions Level
2.6
CO2 per sq m per Year
48
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
12 Ash Tree Dell
Date
6 Feb 2020
Current
Potential
44
74
Property Type
Maisonette
Built Form
Semi-Detached
Constructed
1950-1966
+
Certificate History
6 Feb 2020
44
74
12 Jan 2010
65
75
Total Floor Area
70 sq m
Current CO2 Emissions Level
5.3
Potential CO2 Emissions Level
2.1
CO2 per sq m per Year
76
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
12 ASH TREE DELL, LONDON
Date
16 Jan 2021
Current
Potential
60
78
Property Type
Maisonette
Built Form
Semi-Detached
Constructed
1950-1966
+
Certificate History
16 Jan 2021
60
78
Total Floor Area
80 sq m
Current CO2 Emissions Level
3.9
Potential CO2 Emissions Level
1.8
CO2 per sq m per Year
49
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
13 Ash Tree Dell
Date
24 Apr 2024
Current
Potential
70
78
Property Type
Maisonette
Built Form
Detached
Constructed
1930-1949
+
Certificate History
24 Apr 2024
70
78
19 Nov 2011
33
60
Total Floor Area
83 sq m
Current CO2 Emissions Level
2.9
Potential CO2 Emissions Level
2.0
CO2 per sq m per Year
35
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
1
Address
16 Ash Tree Dell
Date
25 Jul 2018
Current
Potential
63
75
Property Type
Flat
Built Form
Semi-Detached
Constructed
1930-1949
+
Certificate History
25 Jul 2018
63
75
Total Floor Area
55 sq m
Current CO2 Emissions Level
2.5
Potential CO2 Emissions Level
1.5
CO2 per sq m per Year
46
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
2 Ash Tree Dell
Date
30 Jul 2014
Current
Potential
58
74
Property Type
Flat
Built Form
Semi-Detached
Constructed
1930-1949
+
Certificate History
30 Jul 2014
58
74
Total Floor Area
61 sq m
Current CO2 Emissions Level
3.4
Potential CO2 Emissions Level
1.8
CO2 per sq m per Year
55
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
21 Ash Tree Dell
Date
15 Feb 2011
Current
Potential
71
72
Property Type
Maisonette
Built Form
Semi-Detached
Constructed
1930-1949
+
Certificate History
15 Feb 2011
71
72
Total Floor Area
28 sq m
Current CO2 Emissions Level
1.7
Potential CO2 Emissions Level
1.7
CO2 per sq m per Year
68
Mains Gas Available
Yes
Habitable Rooms
1
Number of Extensions
0
Address
24 Ash Tree Dell
Date
29 Sep 2010
Current
Potential
65
69
Property Type
Maisonette
Built Form
N/A
Constructed
1930-1949
+
Certificate History
29 Sep 2010
65
69
Total Floor Area
56 sq m
Current CO2 Emissions Level
3.1
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
24 ASH TREE DELL, LONDON
Date
18 Apr 2021
Current
Potential
75
78
Property Type
Maisonette
Built Form
Semi-Detached
Constructed
1900-1929
+
Certificate History
18 Apr 2021
75
78
Total Floor Area
94 sq m
Current CO2 Emissions Level
2.5
Potential CO2 Emissions Level
2.1
CO2 per sq m per Year
26
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
25 Ash Tree Dell
Date
20 May 2019
Current
Potential
56
77
Property Type
Maisonette
Built Form
Semi-Detached
Constructed
1930-1949
+
Certificate History
20 May 2019
56
77
Total Floor Area
66 sq m
Current CO2 Emissions Level
4.0
Potential CO2 Emissions Level
1.7
CO2 per sq m per Year
60
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
26 Ash Tree Dell
Date
9 Aug 2022
Current
Potential
67
78
Property Type
Flat
Built Form
End-Terrace
Constructed
1930-1949
+
Certificate History
9 Aug 2022
67
78
16 Feb 2012
64
64
Total Floor Area
69 sq m
Current CO2 Emissions Level
2.8
Potential CO2 Emissions Level
1.6
CO2 per sq m per Year
40
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
28 Ash Tree Dell
Date
18 Apr 2024
Current
Potential
60
79
Property Type
Flat
Built Form
Semi-Detached
Constructed
1930-1949
+
Certificate History
18 Apr 2024
60
79
26 Apr 2014
69
77
Total Floor Area
64 sq m
Current CO2 Emissions Level
3.4
Potential CO2 Emissions Level
1.4
CO2 per sq m per Year
54
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
29 ASH TREE DELL
Date
8 Jul 2021
Current
Potential
67
77
Property Type
Flat
Built Form
Semi-Detached
Constructed
1900-1929
+
Certificate History
8 Jul 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
42
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
3 Ash Tree Dell
Date
16 Jul 2014
Current
Potential
53
66
Property Type
Flat
Built Form
Detached
Constructed
before 1900
+
Certificate History
16 Jul 2014
53
66
Total Floor Area
80 sq m
Current CO2 Emissions Level
4.6
Potential CO2 Emissions Level
3.2
CO2 per sq m per Year
57
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
30 Ash Tree Dell
Date
17 Jan 2013
Current
Potential
61
76
Property Type
Maisonette
Built Form
Mid-Terrace
Constructed
1930-1949
+
Certificate History
17 Jan 2013
61
76
Total Floor Area
63 sq m
Current CO2 Emissions Level
3.1
Potential CO2 Emissions Level
1.6
CO2 per sq m per Year
50
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
31 Ash Tree Dell
Date
20 Jul 2022
Current
Potential
63
79
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1950-1966
+
Certificate History
20 Jul 2022
63
79
23 Aug 2011
60
62
Total Floor Area
67 sq m
Current CO2 Emissions Level
3.2
Potential CO2 Emissions Level
1.5
CO2 per sq m per Year
48
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
33 Ash Tree Dell
Date
16 Apr 2012
Current
Potential
49
79
Property Type
Maisonette
Built Form
Semi-Detached
Constructed
1900-1929
+
Certificate History
16 Apr 2012
49
79
Total Floor Area
58 sq m
Current CO2 Emissions Level
3.7
Potential CO2 Emissions Level
1.3
CO2 per sq m per Year
64
Mains Gas Available
No
Habitable Rooms
3
Number of Extensions
0
Address
34 Ash Tree Dell
Date
6 Oct 2022
Current
Potential
67
77
Property Type
Flat
Built Form
End-Terrace
Constructed
1930-1949
+
Certificate History
6 Oct 2022
67
77
28 Aug 2012
55
78
9 Aug 2012
55
71
6 Mar 2009
52
69
27 Feb 2009
50
65
Total Floor Area
59 sq m
Current CO2 Emissions Level
2.5
Potential CO2 Emissions Level
1.5
CO2 per sq m per Year
43
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
35 Ash Tree Dell
Date
27 Mar 2024
Current
Potential
77
79
Property Type
Flat
Built Form
End-Terrace
Constructed
1930-1949
+
Certificate History
27 Mar 2024
77
79
2 Aug 2022
24
59
Total Floor Area
70 sq m
Current CO2 Emissions Level
1.8
Potential CO2 Emissions Level
1.6
CO2 per sq m per Year
25
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
37 Ash Tree Dell
Date
27 May 2019
Current
Potential
62
75
Property Type
Maisonette
Built Form
Semi-Detached
Constructed
1930-1949
+
Certificate History
27 May 2019
62
75
Total Floor Area
61 sq m
Current CO2 Emissions Level
3.1
Potential CO2 Emissions Level
1.8
CO2 per sq m per Year
50
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
39 Ash Tree Dell
Date
13 Feb 2017
Current
Potential
64
78
Property Type
Flat
Built Form
Semi-Detached
Constructed
1930-1949
+
Certificate History
13 Feb 2017
64
78
26 Oct 2009
62
81
Total Floor Area
62 sq m
Current CO2 Emissions Level
2.8
Potential CO2 Emissions Level
1.5
CO2 per sq m per Year
46
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
40 Ash Tree Dell
Date
31 Aug 2021
Current
Potential
51
64
Property Type
Maisonette
Built Form
End-Terrace
Constructed
1900-1929
+
Certificate History
31 Aug 2021
51
64
Total Floor Area
64 sq m
Current CO2 Emissions Level
4.3
Potential CO2 Emissions Level
2.9
CO2 per sq m per Year
68
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
1
Address
41 Ash Tree Dell
Date
29 Sep 2009
Current
Potential
57
65
Property Type
Maisonette
Built Form
Semi-Detached
Constructed
1930-1949
+
Certificate History
29 Sep 2009
57
65
Total Floor Area
69 sq m
Current CO2 Emissions Level
4.1
Potential CO2 Emissions Level
3.4
CO2 per sq m per Year
59
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
44 Ash Tree Dell
Date
6 Apr 2017
Current
Potential
47
58
Property Type
Maisonette
Built Form
Semi-Detached
Constructed
1930-1949
+
Certificate History
6 Apr 2017
47
58
Total Floor Area
66 sq m
Current CO2 Emissions Level
4.7
Potential CO2 Emissions Level
3.6
CO2 per sq m per Year
72
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
45 Ash Tree Dell
Date
6 Aug 2020
Current
Potential
68
88
Property Type
House
Built Form
End-Terrace
Constructed
1930-1949
+
Certificate History
6 Aug 2020
68
88
4 Nov 2009
55
56
Total Floor Area
60 sq m
Current CO2 Emissions Level
2.4
Potential CO2 Emissions Level
0.7
CO2 per sq m per Year
40
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
46 Ash Tree Dell
Date
22 Nov 2011
Current
Potential
59
64
Property Type
Maisonette
Built Form
End-Terrace
Constructed
1930-1949
+
Certificate History
22 Nov 2011
59
64
Total Floor Area
58 sq m
Current CO2 Emissions Level
3.3
Potential CO2 Emissions Level
2.9
CO2 per sq m per Year
57
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
1
Address
47 Ash Tree Dell
Date
1 Dec 2009
Current
Potential
59
71
Property Type
Flat
Built Form
Semi-Detached
Constructed
1930-1949
+
Certificate History
1 Dec 2009
59
71
Total Floor Area
59 sq m
Current CO2 Emissions Level
3.7
Potential CO2 Emissions Level
2.7
CO2 per sq m per Year
61
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
48 Ash Tree Dell
Date
3 Jun 2013
Current
Potential
57
74
Property Type
Maisonette
Built Form
Semi-Detached
Constructed
1900-1929
+
Certificate History
3 Jun 2013
57
74
Total Floor Area
64 sq m
Current CO2 Emissions Level
3.6
Potential CO2 Emissions Level
1.9
CO2 per sq m per Year
56
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
5 Ash Tree Dell
Date
25 Mar 2013
Current
Potential
62
75
Property Type
Flat
Built Form
End-Terrace
Constructed
1900-1929
+
Certificate History
25 Mar 2013
62
75
Total Floor Area
64 sq m
Current CO2 Emissions Level
3.0
Potential CO2 Emissions Level
1.8
CO2 per sq m per Year
47
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
50 Ash Tree Dell
Date
15 Mar 2016
Current
Potential
49
76
Property Type
Maisonette
Built Form
Semi-Detached
Constructed
1930-1949
+
Certificate History
15 Mar 2016
49
76
Total Floor Area
62 sq m
Current CO2 Emissions Level
4.4
Potential CO2 Emissions Level
1.6
CO2 per sq m per Year
71
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
51 Ash Tree Dell
Date
2 Oct 2022
Current
Potential
66
73
Property Type
Flat
Built Form
End-Terrace
Constructed
1930-1949
+
Certificate History
2 Oct 2022
66
73
Total Floor Area
114 sq m
Current CO2 Emissions Level
4.3
Potential CO2 Emissions Level
3.2
CO2 per sq m per Year
38
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
0
Address
52 Ash Tree Dell
Date
6 Nov 2018
Current
Potential
67
74
Property Type
Maisonette
Built Form
Semi-Detached
Constructed
1900-1929
+
Certificate History
6 Nov 2018
67
74
Total Floor Area
60 sq m
Current CO2 Emissions Level
2.5
Potential CO2 Emissions Level
1.9
CO2 per sq m per Year
42
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
54 Ash Tree Dell
Date
2 Aug 2009
Current
Potential
51
53
Property Type
Maisonette
Built Form
Detached
Constructed
1930-1949
+
Certificate History
2 Aug 2009
51
53
Total Floor Area
60 sq m
Current CO2 Emissions Level
4.7
Potential CO2 Emissions Level
4.7
CO2 per sq m per Year
78
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
56 Ash Tree Dell
Date
9 Jun 2009
Current
Potential
55
64
Property Type
House
Built Form
Semi-Detached
Constructed
1930-1949
+
Certificate History
9 Jun 2009
55
64
Total Floor Area
62 sq m
Current CO2 Emissions Level
4.4
Potential CO2 Emissions Level
3.6
CO2 per sq m per Year
71
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
58 Ash Tree Dell
Date
31 Oct 2023
Current
Potential
67
77
Property Type
Flat
Built Form
Semi-Detached
Constructed
1930-1949
+
Certificate History
31 Oct 2023
67
77
4 Sep 2013
55
75
Total Floor Area
64 sq m
Current CO2 Emissions Level
2.7
Potential CO2 Emissions Level
1.6
CO2 per sq m per Year
42
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
6 Ash Tree Dell
Date
24 Mar 2020
Current
Potential
63
77
Property Type
Maisonette
Built Form
Semi-Detached
Constructed
1930-1949
+
Certificate History
24 Mar 2020
63
77
Total Floor Area
64 sq m
Current CO2 Emissions Level
3.1
Potential CO2 Emissions Level
1.6
CO2 per sq m per Year
49
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
60 Ash Tree Dell
Date
2 Sep 2020
Current
Potential
66
78
Property Type
Flat
Built Form
Semi-Detached
Constructed
1950-1966
+
Certificate History
2 Sep 2020
66
78
21 Jun 2010
61
67
Total Floor Area
66 sq m
Current CO2 Emissions Level
2.9
Potential CO2 Emissions Level
1.6
CO2 per sq m per Year
43
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
64 Ash Tree Dell
Date
16 Dec 2017
Current
Potential
60
77
Property Type
Maisonette
Built Form
Detached
Constructed
1900-1929
+
Certificate History
16 Dec 2017
60
77
Total Floor Area
65 sq m
Current CO2 Emissions Level
3.3
Potential CO2 Emissions Level
1.6
CO2 per sq m per Year
52
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
7 Ash Tree Dell
Date
3 Jun 2018
Current
Potential
67
78
Property Type
Flat
Built Form
Semi-Detached
Constructed
1930-1949
+
Certificate History
3 Jun 2018
67
78
Total Floor Area
62 sq m
Current CO2 Emissions Level
2.6
Potential CO2 Emissions Level
1.5
CO2 per sq m per Year
41
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
8 ASH TREE DELL, LONDON
Date
4 Feb 2021
Current
Potential
59
65
Property Type
Maisonette
Built Form
Semi-Detached
Constructed
1900-1929
+
Certificate History
4 Feb 2021
59
65
Total Floor Area
60 sq m
Current CO2 Emissions Level
3.4
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
9 Ash Tree Dell
Date
15 Dec 2011
Current
Potential
56
62
Property Type
Flat
Built Form
Detached
Constructed
1930-1949
+
Certificate History
15 Dec 2011
56
62
Total Floor Area
62 sq m
Current CO2 Emissions Level
3.2
Potential CO2 Emissions Level
2.6
CO2 per sq m per Year
50
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
Flat 1, 23 Ash Tree Dell
Date
17 Jul 2014
Current
Potential
71
80
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1930-1949
+
Certificate History
17 Jul 2014
71
80
9 Mar 2013
65
77
Total Floor Area
39 sq m
Current CO2 Emissions Level
1.6
Potential CO2 Emissions Level
0.8
CO2 per sq m per Year
40
Mains Gas Available
Yes
Habitable Rooms
1
Number of Extensions
0
Address
Flat 2, 23 Ash Tree Dell
Date
17 Jul 2014
Current
Potential
69
73
Property Type
Maisonette
Built Form
Mid-Terrace
Constructed
1900-1929
+
Certificate History
17 Jul 2014
69
73
9 Mar 2013
54
76
Total Floor Area
42 sq m
Current CO2 Emissions Level
1.9
Potential CO2 Emissions Level
1.5
CO2 per sq m per Year
44
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
Ground Floor Maisonette, 1 Ash Tree Dell
Date
4 Apr 2011
Current
Potential
59
62
Property Type
Maisonette
Built Form
Detached
Constructed
1930-1949
+
Certificate History
4 Apr 2011
59
62
Total Floor Area
81 sq m
Current CO2 Emissions Level
4.3
Potential CO2 Emissions Level
4.2
CO2 per sq m per Year
54
Mains Gas Available
Yes
Habitable Rooms
4
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.

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