PROPERTY ENERGY EFFICIENCY CERTIFICATE DETAILS
Blakesley Avenue, LONDON, W5 2DW

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 Blakesley Avenue, W5 2DW 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 Blakesley Avenue, LONDON, W5 2DW
Period Covered: 2008 - 31 October 2024

Address
Inspection Date
Current
Potential
Property Type
Built Form
Constructed
Address
10 Blakesley Avenue
Date
5 Mar 2010
Current
Potential
35
58
Property Type
Flat
Built Form
Detached
Constructed
before 1900
+
Certificate History
5 Mar 2010
35
58
Total Floor Area
143 sq m
Current CO2 Emissions Level
11.0
Potential CO2 Emissions Level
7.1
CO2 per sq m per Year
80
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
1
Address
10a Blakesley Avenue
Date
5 Mar 2010
Current
Potential
65
67
Property Type
Flat
Built Form
Detached
Constructed
before 1900
+
Certificate History
5 Mar 2010
65
67
Total Floor Area
85 sq m
Current CO2 Emissions Level
3.9
Potential CO2 Emissions Level
3.7
CO2 per sq m per Year
46
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
10b Blakesley Avenue
Date
5 Mar 2010
Current
Potential
35
48
Property Type
Flat
Built Form
Detached
Constructed
before 1900
+
Certificate History
5 Mar 2010
35
48
Total Floor Area
123 sq m
Current CO2 Emissions Level
10.0
Potential CO2 Emissions Level
7.9
CO2 per sq m per Year
84
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
1
Address
10c Blakesley Avenue
Date
5 Mar 2010
Current
Potential
70
72
Property Type
Flat
Built Form
Detached
Constructed
before 1900
+
Certificate History
5 Mar 2010
70
72
Total Floor Area
44 sq m
Current CO2 Emissions Level
2.3
Potential CO2 Emissions Level
2.1
CO2 per sq m per Year
52
Mains Gas Available
Yes
Habitable Rooms
1
Number of Extensions
0
Address
12 Blakesley Avenue
Date
3 Mar 2015
Current
Potential
45
78
Property Type
House
Built Form
Detached
Constructed
1900-1929
+
Certificate History
3 Mar 2015
45
78
Total Floor Area
401 sq m
Current CO2 Emissions Level
21.0
Potential CO2 Emissions Level
7.8
CO2 per sq m per Year
52
Mains Gas Available
Yes
Habitable Rooms
11
Number of Extensions
2
Address
20 Blakesley Avenue
Date
9 Oct 2023
Current
Potential
42
75
Property Type
Maisonette
Built Form
Detached
Constructed
1900-1929
+
Certificate History
9 Oct 2023
42
75
Total Floor Area
278 sq m
Current CO2 Emissions Level
16.0
Potential CO2 Emissions Level
6.3
CO2 per sq m per Year
57
Mains Gas Available
Yes
Habitable Rooms
10
Number of Extensions
1
Address
20A BLAKESLEY AVENUE, EALING
Date
7 Jan 2021
Current
Potential
44
63
Property Type
Flat
Built Form
Detached
Constructed
1900-1929
+
Certificate History
7 Jan 2021
44
63
Total Floor Area
86 sq m
Current CO2 Emissions Level
6.0
Potential CO2 Emissions Level
3.7
CO2 per sq m per Year
70
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
22 Blakesley Avenue
Date
12 Apr 2017
Current
Potential
67
74
Property Type
Flat
Built Form
End-Terrace
Constructed
1900-1929
+
Certificate History
12 Apr 2017
67
74
Total Floor Area
25 sq m
Current CO2 Emissions Level
1.6
Potential CO2 Emissions Level
1.2
CO2 per sq m per Year
64
Mains Gas Available
Yes
Habitable Rooms
1
Number of Extensions
0
Address
24 Blakesley Avenue
Date
17 Nov 2011
Current
Potential
43
57
Property Type
House
Built Form
Detached
Constructed
1900-1929
+
Certificate History
17 Nov 2011
43
57
Total Floor Area
262 sq m
Current CO2 Emissions Level
23.0
Potential CO2 Emissions Level
17.0
CO2 per sq m per Year
60
Mains Gas Available
Yes
Habitable Rooms
10
Number of Extensions
0
Address
8 Blakesley Avenue
Date
5 May 2013
Current
Potential
46
70
Property Type
Flat
Built Form
Detached
Constructed
before 1900
+
Certificate History
5 May 2013
46
70
Total Floor Area
167 sq m
Current CO2 Emissions Level
9.6
Potential CO2 Emissions Level
5.0
CO2 per sq m per Year
57
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
2
Address
8a Blakesley Avenue
Date
6 Mar 2015
Current
Potential
67
80
Property Type
Flat
Built Form
Semi-Detached
Constructed
1900-1929
+
Certificate History
6 Mar 2015
67
80
Total Floor Area
76 sq m
Current CO2 Emissions Level
2.9
Potential CO2 Emissions Level
1.5
CO2 per sq m per Year
38
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
8b Blakesley Avenue
Date
30 Sep 2018
Current
Potential
51
71
Property Type
Flat
Built Form
Detached
Constructed
1900-1929
+
Certificate History
30 Sep 2018
51
71
15 Sep 2009
35
43
Total Floor Area
130 sq m
Current CO2 Emissions Level
7.1
Potential CO2 Emissions Level
4.0
CO2 per sq m per Year
55
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
1
Address
8c Blakesley Avenue
Date
10 Nov 2023
Current
Potential
66
79
Property Type
Flat
Built Form
Semi-Detached
Constructed
1900-1929
+
Certificate History
10 Nov 2023
66
79
9 Jul 2012
65
80
Total Floor Area
48 sq m
Current CO2 Emissions Level
2.2
Potential CO2 Emissions Level
1.1
CO2 per sq m per Year
46
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
BLAKESLEY HOTEL, 6 BLAKESLEY AVENUE
Date
10 Feb 2021
Current
Potential
58
75
Property Type
House
Built Form
Detached
Constructed
1900-1929
+
Certificate History
10 Feb 2021
58
75
Total Floor Area
381 sq m
Current CO2 Emissions Level
15.1
Potential CO2 Emissions Level
8.4
CO2 per sq m per Year
40
Mains Gas Available
Yes
Habitable Rooms
14
Number of Extensions
1
Address
First Floor Rear Flat, 22 Blakesley Avenue
Date
29 Aug 2016
Current
Potential
54
64
Property Type
Flat
Built Form
End-Terrace
Constructed
1900-1929
+
Certificate History
29 Aug 2016
54
64
Total Floor Area
38 sq m
Current CO2 Emissions Level
2.9
Potential CO2 Emissions Level
2.2
CO2 per sq m per Year
78
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
Flat 1, 14 Blakesley Avenue
Date
7 Jan 2019
Current
Potential
51
76
Property Type
Flat
Built Form
Semi-Detached
Constructed
before 1900
+
Certificate History
7 Jan 2019
51
76
Total Floor Area
71 sq m
Current CO2 Emissions Level
4.6
Potential CO2 Emissions Level
1.8
CO2 per sq m per Year
65
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
Flat 1, 22 Blakesley Avenue
Date
29 Aug 2016
Current
Potential
69
77
Property Type
Flat
Built Form
End-Terrace
Constructed
1900-1929
+
Certificate History
29 Aug 2016
69
77
23 May 2012
53
78
Total Floor Area
24 sq m
Current CO2 Emissions Level
1.4
Potential CO2 Emissions Level
0.8
CO2 per sq m per Year
58
Mains Gas Available
Yes
Habitable Rooms
1
Number of Extensions
0
Address
Flat 1, 28, Blakesley Avenue
Date
14 Jan 2014
Current
Potential
60
80
Property Type
Flat
Built Form
Detached
Constructed
1900-1929
+
Certificate History
14 Jan 2014
60
80
Total Floor Area
114 sq m
Current CO2 Emissions Level
5.0
Potential CO2 Emissions Level
2.2
CO2 per sq m per Year
44
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
Flat 1a, 16 Blakesley Avenue
Date
22 Jul 2013
Current
Potential
66
79
Property Type
Flat
Built Form
Enclosed End-Terrace
Constructed
before 1900
+
Certificate History
22 Jul 2013
66
79
Total Floor Area
34 sq m
Current CO2 Emissions Level
1.7
Potential CO2 Emissions Level
0.9
CO2 per sq m per Year
51
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
FLAT 1A, 16 BLAKESLEY AVENUE
Date
15 Apr 2021
Current
Potential
69
77
Property Type
Flat
Built Form
Enclosed End-Terrace
Constructed
1900-1929
+
Certificate History
15 Apr 2021
69
77
Total Floor Area
35 sq m
Current CO2 Emissions Level
1.6
Potential CO2 Emissions Level
1.0
CO2 per sq m per Year
46
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
Flat 1b, 16 Blakesley Avenue
Date
15 Mar 2019
Current
Potential
66
77
Property Type
Flat
Built Form
End-Terrace
Constructed
1900-1929
+
Certificate History
15 Mar 2019
66
77
14 Jul 2009
64
70
Total Floor Area
38 sq m
Current CO2 Emissions Level
1.9
Potential CO2 Emissions Level
1.1
CO2 per sq m per Year
51
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
Flat 2, 14 Blakesley Avenue
Date
8 Jan 2019
Current
Potential
60
74
Property Type
Flat
Built Form
Semi-Detached
Constructed
before 1900
+
Certificate History
8 Jan 2019
60
74
11 Jan 2013
23
73
Total Floor Area
55 sq m
Current CO2 Emissions Level
2.9
Potential CO2 Emissions Level
1.6
CO2 per sq m per Year
53
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
Flat 2, 16 Blakesley Avenue
Date
4 Sep 2012
Current
Potential
60
80
Property Type
Flat
Built Form
Enclosed End-Terrace
Constructed
before 1900
+
Certificate History
4 Sep 2012
60
80
Total Floor Area
78 sq m
Current CO2 Emissions Level
3.5
Potential CO2 Emissions Level
1.5
CO2 per sq m per Year
45
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
Flat 2, 22 Blakesley Avenue
Date
10 May 2017
Current
Potential
76
79
Property Type
Flat
Built Form
Enclosed Mid-Terrace
Constructed
1930-1949
+
Certificate History
10 May 2017
76
79
Total Floor Area
24 sq m
Current CO2 Emissions Level
0.9
Potential CO2 Emissions Level
0.7
CO2 per sq m per Year
39
Mains Gas Available
Yes
Habitable Rooms
1
Number of Extensions
0
Address
Flat 2, 28 Blakesley Avenue
Date
6 Jun 2024
Current
Potential
74
80
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1900-1929
+
Certificate History
6 Jun 2024
74
80
Total Floor Area
60 sq m
Current CO2 Emissions Level
1.8
Potential CO2 Emissions Level
1.2
CO2 per sq m per Year
31
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
Flat 3, 14 Blakesley Avenue
Date
8 Jan 2019
Current
Potential
59
77
Property Type
Flat
Built Form
Semi-Detached
Constructed
before 1900
+
Certificate History
8 Jan 2019
59
77
29 Aug 2012
45
73
5 Nov 2008
48
76
Total Floor Area
65 sq m
Current CO2 Emissions Level
3.5
Potential CO2 Emissions Level
1.6
CO2 per sq m per Year
54
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
1
Address
Flat 3, 22 Blakesley Avenue
Date
17 Aug 2022
Current
Potential
68
75
Property Type
Flat
Built Form
Enclosed End-Terrace
Constructed
1900-1929
+
Certificate History
17 Aug 2022
68
75
12 May 2012
51
79
Total Floor Area
27 sq m
Current CO2 Emissions Level
1.5
Potential CO2 Emissions Level
1.0
CO2 per sq m per Year
57
Mains Gas Available
No
Habitable Rooms
1
Number of Extensions
0
Address
Flat 3, 28, Blakesley Avenue
Date
26 Jun 2020
Current
Potential
64
81
Property Type
Flat
Built Form
End-Terrace
Constructed
1900-1929
+
Certificate History
26 Jun 2020
64
81
Total Floor Area
85 sq m
Current CO2 Emissions Level
3.5
Potential CO2 Emissions Level
1.5
CO2 per sq m per Year
41
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
1
Address
Flat 4, 14 Blakesley Avenue
Date
8 Jan 2019
Current
Potential
61
81
Property Type
Flat
Built Form
Semi-Detached
Constructed
before 1900
+
Certificate History
8 Jan 2019
61
81
17 Aug 2016
35
79
Total Floor Area
75 sq m
Current CO2 Emissions Level
3.6
Potential CO2 Emissions Level
1.4
CO2 per sq m per Year
48
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
Flat 4, 22 Blakesley Avenue
Date
10 May 2017
Current
Potential
68
69
Property Type
Flat
Built Form
Semi-Detached
Constructed
1976-1982
+
Certificate History
10 May 2017
68
69
Total Floor Area
43 sq m
Current CO2 Emissions Level
2.0
Potential CO2 Emissions Level
1.9
CO2 per sq m per Year
47
Mains Gas Available
Yes
Habitable Rooms
1
Number of Extensions
0
Address
Flat 4, 28 Blakesley Avenue
Date
3 Nov 2022
Current
Potential
62
78
Property Type
Flat
Built Form
Semi-Detached
Constructed
1900-1929
+
Certificate History
3 Nov 2022
62
78
3 Jan 2012
63
72
Total Floor Area
114 sq m
Current CO2 Emissions Level
4.6
Potential CO2 Emissions Level
2.3
CO2 per sq m per Year
40
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
Flat 5, 14 Blakesley Avenue
Date
8 Jan 2019
Current
Potential
39
64
Property Type
Flat
Built Form
Detached
Constructed
before 1900
+
Certificate History
8 Jan 2019
39
64
17 Aug 2016
27
53
Total Floor Area
77 sq m
Current CO2 Emissions Level
6.2
Potential CO2 Emissions Level
3.4
CO2 per sq m per Year
82
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
2
Address
Flat 5, 16 Blakesley Avenue
Date
2 Jul 2024
Current
Potential
69
81
Property Type
Flat
Built Form
Detached
Constructed
1900-1929
+
Certificate History
2 Jul 2024
69
81
18 Sep 2012
64
81
14 Jul 2010
59
66
Total Floor Area
77 sq m
Current CO2 Emissions Level
2.7
Potential CO2 Emissions Level
1.5
CO2 per sq m per Year
35
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
Flat 5, 22 Blakesley Avenue
Date
12 Apr 2017
Current
Potential
67
74
Property Type
Flat
Built Form
End-Terrace
Constructed
1900-1929
+
Certificate History
12 Apr 2017
67
74
Total Floor Area
25 sq m
Current CO2 Emissions Level
1.6
Potential CO2 Emissions Level
1.2
CO2 per sq m per Year
64
Mains Gas Available
Yes
Habitable Rooms
1
Number of Extensions
0
Address
Flat 6, 22 Blakesley Avenue
Date
29 Aug 2016
Current
Potential
62
62
Property Type
Flat
Built Form
End-Terrace
Constructed
1900-1929
+
Certificate History
29 Aug 2016
62
62
Total Floor Area
23 sq m
Current CO2 Emissions Level
1.8
Potential CO2 Emissions Level
1.8
CO2 per sq m per Year
80
Mains Gas Available
Yes
Habitable Rooms
1
Number of Extensions
0
Address
Flat 7, 22 Blakesley Avenue
Date
10 May 2017
Current
Potential
64
66
Property Type
Flat
Built Form
Enclosed Mid-Terrace
Constructed
1976-1982
+
Certificate History
10 May 2017
64
66
Total Floor Area
17 sq m
Current CO2 Emissions Level
1.2
Potential CO2 Emissions Level
1.1
CO2 per sq m per Year
72
Mains Gas Available
Yes
Habitable Rooms
1
Number of Extensions
0
Address
Flat A, Frensham House
Date
19 Jul 2024
Current
Potential
72
80
Property Type
Flat
Built Form
Semi-Detached
Constructed
1900-1929
+
Certificate History
19 Jul 2024
72
80
Total Floor Area
86 sq m
Current CO2 Emissions Level
2.6
Potential CO2 Emissions Level
1.7
CO2 per sq m per Year
31
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
Flat A Frensham House, 4, Blakesley Avenue
Date
2 Jul 2014
Current
Potential
67
79
Property Type
Flat
Built Form
Semi-Detached
Constructed
1900-1929
+
Certificate History
2 Jul 2014
67
79
Total Floor Area
77 sq m
Current CO2 Emissions Level
2.9
Potential CO2 Emissions Level
1.7
CO2 per sq m per Year
38
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
Flat B Frensham House, 4, Blakesley Avenue
Date
31 May 2017
Current
Potential
68
78
Property Type
Flat
Built Form
End-Terrace
Constructed
before 1900
+
Certificate History
31 May 2017
68
78
Total Floor Area
62 sq m
Current CO2 Emissions Level
2.4
Potential CO2 Emissions Level
1.5
CO2 per sq m per Year
39
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
Flat C Frensham House, 4, Blakesley Avenue
Date
2 Mar 2020
Current
Potential
68
78
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1900-1929
+
Certificate History
2 Mar 2020
68
78
12 Jan 2009
70
72
12 Jan 2009
76
78
Total Floor Area
51 sq m
Current CO2 Emissions Level
2.1
Potential CO2 Emissions Level
1.3
CO2 per sq m per Year
42
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
Flat D Frensham House, 4, Blakesley Avenue
Date
16 Jun 2019
Current
Potential
72
79
Property Type
Flat
Built Form
Semi-Detached
Constructed
1930-1949
+
Certificate History
16 Jun 2019
72
79
12 Jan 2009
79
81
Total Floor Area
42 sq m
Current CO2 Emissions Level
1.5
Potential CO2 Emissions Level
1.0
CO2 per sq m per Year
36
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
Flat E Frensham House, 4, Blakesley Avenue
Date
16 Jun 2019
Current
Potential
73
79
Property Type
Flat
Built Form
Semi-Detached
Constructed
1930-1949
+
Certificate History
16 Jun 2019
73
79
31 May 2009
72
74
Total Floor Area
51 sq m
Current CO2 Emissions Level
1.7
Potential CO2 Emissions Level
1.1
CO2 per sq m per Year
34
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
Flat F, Frensham House
Date
21 Apr 2022
Current
Potential
79
84
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1900-1929
+
Certificate History
21 Apr 2022
79
84
Total Floor Area
55 sq m
Current CO2 Emissions Level
1.2
Potential CO2 Emissions Level
0.8
CO2 per sq m per Year
23
Mains Gas Available
No
Habitable Rooms
3
Number of Extensions
0
Address
Flat F Frensham House, 4, Blakesley Avenue
Date
7 Mar 2012
Current
Potential
70
71
Property Type
Flat
Built Form
End-Terrace
Constructed
1900-1929
+
Certificate History
7 Mar 2012
70
71
Total Floor Area
59 sq m
Current CO2 Emissions Level
2.2
Potential CO2 Emissions Level
2.1
CO2 per sq m per Year
38
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
Flat G Frensham House, 4, Blakesley Avenue
Date
5 Dec 2018
Current
Potential
81
81
Property Type
Flat
Built Form
Mid-Terrace
Constructed
2003-2006
+
Certificate History
5 Dec 2018
81
81
Total Floor Area
47 sq m
Current CO2 Emissions Level
0.9
Potential CO2 Emissions Level
0.9
CO2 per sq m per Year
19
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
Flat H Frensham House, 4, Blakesley Avenue
Date
16 Jun 2019
Current
Potential
73
79
Property Type
Flat
Built Form
Semi-Detached
Constructed
1930-1949
+
Certificate History
16 Jun 2019
73
79
31 May 2009
75
77
Total Floor Area
84 sq m
Current CO2 Emissions Level
2.5
Potential CO2 Emissions Level
1.7
CO2 per sq m per Year
29
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
Ground Floor Front Studio, 22 Blakesley Avenue
Date
31 Jul 2017
Current
Potential
60
73
Property Type
Flat
Built Form
Semi-Detached
Constructed
1900-1929
+
Certificate History
31 Jul 2017
60
73
Total Floor Area
27 sq m
Current CO2 Emissions Level
2.0
Potential CO2 Emissions Level
1.1
CO2 per sq m per Year
73
Mains Gas Available
Yes
Habitable Rooms
1
Number of Extensions
0
Address
Top Floor Flat, 20 Blakesley Avenue
Date
8 Dec 2010
Current
Potential
57
65
Property Type
Flat
Built Form
Detached
Constructed
before 1900
+
Certificate History
8 Dec 2010
57
65
Total Floor Area
93 sq m
Current CO2 Emissions Level
5.1
Potential CO2 Emissions Level
4.2
CO2 per sq m per Year
55
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Bands

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