PROPERTY ENERGY EFFICIENCY CERTIFICATE DETAILS
Grove Green Road, LONDON, E11 4AQ

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 Grove Green Road, E11 4AQ 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 Grove Green Road, LONDON, E11 4AQ
Period Covered: 2008 - 31 January 2025

Address
Inspection Date
Current
Potential
Property Type
Built Form
Constructed
Address
331 Grove Green Road
Date
4 Jul 2016
Current
Potential
45
87
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
+
Certificate History
4 Jul 2016
45
87
Total Floor Area
111 sq m
Current CO2 Emissions Level
6.2
Potential CO2 Emissions Level
1.3
CO2 per sq m per Year
56
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
2
Address
331 GROVE GREEN ROAD, LEYTONSTONE
Date
7 Apr 2021
Current
Potential
67
85
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
+
Certificate History
7 Apr 2021
67
85
Total Floor Area
122 sq m
Current CO2 Emissions Level
4.2
Potential CO2 Emissions Level
1.7
CO2 per sq m per Year
35
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
2
Address
333 Grove Green Road
Date
21 Feb 2024
Current
Potential
67
84
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
+
Certificate History
21 Feb 2024
67
84
24 Apr 2013
56
79
Total Floor Area
110 sq m
Current CO2 Emissions Level
3.9
Potential CO2 Emissions Level
1.6
CO2 per sq m per Year
35
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
1
Address
335 GROVE GREEN ROAD, LEYTONSTONE
Date
13 Mar 2021
Current
Potential
63
78
Property Type
House
Built Form
Mid-Terrace
Constructed
before 1900
+
Certificate History
13 Mar 2021
63
78
Total Floor Area
110 sq m
Current CO2 Emissions Level
4.3
Potential CO2 Emissions Level
2.4
CO2 per sq m per Year
39
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
1
Address
341 Grove Green Road
Date
29 May 2014
Current
Potential
52
80
Property Type
House
Built Form
Mid-Terrace
Constructed
before 1900
+
Certificate History
29 May 2014
52
80
Total Floor Area
123 sq m
Current CO2 Emissions Level
7.2
Potential CO2 Emissions Level
2.9
CO2 per sq m per Year
59
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
345 Grove Green Road
Date
14 May 2013
Current
Potential
75
85
Property Type
House
Built Form
Mid-Terrace
Constructed
before 1900
+
Certificate History
14 May 2013
75
85
Total Floor Area
200 sq m
Current CO2 Emissions Level
4.9
Potential CO2 Emissions Level
2.7
CO2 per sq m per Year
24
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
353 Grove Green Road
Date
29 Jun 2014
Current
Potential
60
83
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
+
Certificate History
29 Jun 2014
60
83
28 Sep 2010
48
67
Total Floor Area
113 sq m
Current CO2 Emissions Level
4.6
Potential CO2 Emissions Level
1.8
CO2 per sq m per Year
41
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
361 Grove Green Road
Date
18 Mar 2020
Current
Potential
56
68
Property Type
House
Built Form
End-Terrace
Constructed
1900-1929
+
Certificate History
18 Mar 2020
56
68
Total Floor Area
166 sq m
Current CO2 Emissions Level
7.5
Potential CO2 Emissions Level
5.4
CO2 per sq m per Year
45
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
2
Address
365 Grove Green Road
Date
20 Jun 2014
Current
Potential
62
86
Property Type
House
Built Form
Mid-Terrace
Constructed
1930-1949
+
Certificate History
20 Jun 2014
62
86
Total Floor Area
113 sq m
Current CO2 Emissions Level
4.7
Potential CO2 Emissions Level
1.4
CO2 per sq m per Year
42
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
367 Grove Green Road
Date
19 Nov 2015
Current
Potential
57
89
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
+
Certificate History
19 Nov 2015
57
89
Total Floor Area
94 sq m
Current CO2 Emissions Level
4.6
Potential CO2 Emissions Level
0.9
CO2 per sq m per Year
49
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
0
Address
367 GROVE GREEN ROAD, LEYTONSTONE
Date
11 Oct 2020
Current
Potential
65
81
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
+
Certificate History
11 Oct 2020
65
81
Total Floor Area
99 sq m
Current CO2 Emissions Level
3.8
Potential CO2 Emissions Level
1.9
CO2 per sq m per Year
39
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
2
Address
369 Grove Green Road
Date
6 Jan 2020
Current
Potential
65
79
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
+
Certificate History
6 Jan 2020
65
79
Total Floor Area
126 sq m
Current CO2 Emissions Level
4.5
Potential CO2 Emissions Level
2.6
CO2 per sq m per Year
36
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
1
Address
371 Grove Green Road
Date
14 Apr 2011
Current
Potential
66
72
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
+
Certificate History
14 Apr 2011
66
72
Total Floor Area
102 sq m
Current CO2 Emissions Level
4.4
Potential CO2 Emissions Level
3.6
CO2 per sq m per Year
44
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
2
Address
371 GROVE GREEN ROAD, LEYTONSTONE
Date
16 May 2021
Current
Potential
60
84
Property Type
House
Built Form
Mid-Terrace
Constructed
1950-1966
+
Certificate History
16 May 2021
60
84
Total Floor Area
149 sq m
Current CO2 Emissions Level
6.2
Potential CO2 Emissions Level
2.2
CO2 per sq m per Year
42
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
3
Address
373a Grove Green Road
Date
21 Aug 2009
Current
Potential
68
73
Property Type
Flat
Built Form
Detached
Constructed
1930-1949
+
Certificate History
21 Aug 2009
68
73
Total Floor Area
41 sq m
Current CO2 Emissions Level
2.4
Potential CO2 Emissions Level
2.0
CO2 per sq m per Year
57
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
375 Grove Green Road
Date
18 Apr 2022
Current
Potential
72
84
Property Type
House
Built Form
Mid-Terrace
Constructed
before 1900
+
Certificate History
18 Apr 2022
72
84
Total Floor Area
119 sq m
Current CO2 Emissions Level
3.4
Potential CO2 Emissions Level
1.7
CO2 per sq m per Year
29
Mains Gas Available
Yes
Habitable Rooms
7
Number of Extensions
4
Address
379 Grove Green Road
Date
25 Jul 2011
Current
Potential
52
57
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
+
Certificate History
25 Jul 2011
52
57
Total Floor Area
75 sq m
Current CO2 Emissions Level
4.6
Potential CO2 Emissions Level
4.1
CO2 per sq m per Year
62
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
383 Grove Green Road
Date
28 Apr 2010
Current
Potential
53
58
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
+
Certificate History
28 Apr 2010
53
58
Total Floor Area
111 sq m
Current CO2 Emissions Level
6.4
Potential CO2 Emissions Level
5.8
CO2 per sq m per Year
64
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
1
Address
383 GROVE GREEN ROAD, LEYTONSTONE
Date
22 Sep 2020
Current
Potential
60
80
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
+
Certificate History
22 Sep 2020
60
80
Total Floor Area
91 sq m
Current CO2 Emissions Level
4.2
Potential CO2 Emissions Level
2.0
CO2 per sq m per Year
46
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
385 Grove Green Road
Date
15 Feb 2017
Current
Potential
63
75
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
+
Certificate History
15 Feb 2017
63
75
Total Floor Area
144 sq m
Current CO2 Emissions Level
5.6
Potential CO2 Emissions Level
3.7
CO2 per sq m per Year
39
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
4
Address
387 Grove Green Road
Date
16 Jul 2015
Current
Potential
52
79
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
+
Certificate History
16 Jul 2015
52
79
Total Floor Area
72 sq m
Current CO2 Emissions Level
4.4
Potential CO2 Emissions Level
1.7
CO2 per sq m per Year
61
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
389A GROVE GREEN ROAD
Date
29 Jul 2021
Current
Potential
72
76
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1900-1929
+
Certificate History
29 Jul 2021
72
76
Total Floor Area
56 sq m
Current CO2 Emissions Level
1.8
Potential CO2 Emissions Level
1.5
CO2 per sq m per Year
33
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
2
Address
389B GROVE GREEN ROAD
Date
29 Jul 2021
Current
Potential
64
67
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1900-1929
+
Certificate History
29 Jul 2021
64
67
Total Floor Area
47 sq m
Current CO2 Emissions Level
2.3
Potential CO2 Emissions Level
2.1
CO2 per sq m per Year
50
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
395 Grove Green Road
Date
4 Jul 2024
Current
Potential
61
83
Property Type
House
Built Form
Mid-Terrace
Constructed
1930-1949
+
Certificate History
4 Jul 2024
61
83
15 May 2013
57
84
Total Floor Area
125 sq m
Current CO2 Emissions Level
5.1
Potential CO2 Emissions Level
2.0
CO2 per sq m per Year
41
Mains Gas Available
Yes
Habitable Rooms
7
Number of Extensions
1
Address
397 Grove Green Road
Date
4 Sep 2018
Current
Potential
75
87
Property Type
House
Built Form
End-Terrace
Constructed
INVALID!
+
Certificate History
4 Sep 2018
75
87
Total Floor Area
79 sq m
Current CO2 Emissions Level
2.0
Potential CO2 Emissions Level
0.9
CO2 per sq m per Year
25
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
First Floor Flat, 343 Grove Green Road
Date
2 Jun 2015
Current
Potential
59
67
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1930-1949
+
Certificate History
2 Jun 2015
59
67
Total Floor Area
69 sq m
Current CO2 Emissions Level
3.5
Potential CO2 Emissions Level
2.8
CO2 per sq m per Year
51
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
First Floor Flat, 389 Grove Green Road
Date
29 Apr 2009
Current
Potential
76
78
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1900-1929
+
Certificate History
29 Apr 2009
76
78
Total Floor Area
53 sq m
Current CO2 Emissions Level
1.9
Potential CO2 Emissions Level
1.8
CO2 per sq m per Year
36
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
FIRST FLOOR FLAT 2, 351 GROVE GREEN ROAD
Date
14 Oct 2020
Current
Potential
52
74
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1900-1929
+
Certificate History
14 Oct 2020
52
74
Total Floor Area
86 sq m
Current CO2 Emissions Level
5.0
Potential CO2 Emissions Level
2.3
CO2 per sq m per Year
58
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
First Floor Flat 2, 355 Grove Green Road
Date
19 Dec 2021
Current
Potential
66
78
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1900-1929
+
Certificate History
19 Dec 2021
66
78
Total Floor Area
56 sq m
Current CO2 Emissions Level
2.5
Potential CO2 Emissions Level
1.3
CO2 per sq m per Year
44
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
First Floor Flat 2, 377 Grove Green Road
Date
4 Oct 2022
Current
Potential
70
73
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1900-1929
+
Certificate History
4 Oct 2022
70
73
Total Floor Area
74 sq m
Current CO2 Emissions Level
2.5
Potential CO2 Emissions Level
2.2
CO2 per sq m per Year
35
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
1
Address
First Floor Flat 2, 381 Grove Green Road
Date
10 May 2023
Current
Potential
68
77
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1900-1929
+
Certificate History
10 May 2023
68
77
Total Floor Area
78 sq m
Current CO2 Emissions Level
2.8
Potential CO2 Emissions Level
1.8
CO2 per sq m per Year
36
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
1
Address
Flat 1, 381 Grove Green Road
Date
11 Jun 2013
Current
Potential
69
75
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1900-1929
+
Certificate History
11 Jun 2013
69
75
Total Floor Area
52 sq m
Current CO2 Emissions Level
2.0
Potential CO2 Emissions Level
1.5
CO2 per sq m per Year
38
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
3
Address
Flat 2, 343, Grove Green Road
Date
9 Jul 2009
Current
Potential
54
63
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1900-1929
+
Certificate History
9 Jul 2009
54
63
4 Apr 2011
75
77
5 Oct 2010
62
69
Total Floor Area
56 sq m
Current CO2 Emissions Level
4.1
Potential CO2 Emissions Level
3.3
CO2 per sq m per Year
73
Mains Gas Available
No
Habitable Rooms
3
Number of Extensions
1
Address
Flat 2 343 Grove Green Road
Date
7 Mar 2024
Current
Potential
72
76
Property Type
Maisonette
Built Form
Mid-Terrace
Constructed
1930-1949
+
Certificate History
7 Mar 2024
72
76
Total Floor Area
41 sq m
Current CO2 Emissions Level
1.5
Potential CO2 Emissions Level
1.2
CO2 per sq m per Year
36
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
Flat A, 389 Grove Green Road
Date
7 Jul 2015
Current
Potential
56
76
Property Type
Flat
Built Form
Enclosed Mid-Terrace
Constructed
1930-1949
+
Certificate History
7 Jul 2015
56
76
Total Floor Area
17 sq m
Current CO2 Emissions Level
1.6
Potential CO2 Emissions Level
1.1
CO2 per sq m per Year
93
Mains Gas Available
No
Habitable Rooms
1
Number of Extensions
0
Address
FLAT B, 347 GROVE GREEN ROAD
Date
25 Jul 2021
Current
Potential
69
76
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1900-1929
+
Certificate History
25 Jul 2021
69
76
Total Floor Area
58 sq m
Current CO2 Emissions Level
1.8
Potential CO2 Emissions Level
1.3
CO2 per sq m per Year
30
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
Flat B, 389 Grove Green Road
Date
7 Jul 2015
Current
Potential
110
111
Property Type
Flat
Built Form
Enclosed Mid-Terrace
Constructed
1930-1949
+
Certificate History
7 Jul 2015
110
111
Total Floor Area
28 sq m
Current CO2 Emissions Level
-0.8
Potential CO2 Emissions Level
-0.9
CO2 per sq m per Year
-28
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
1
Address
Flat C, 389 Grove Green Road
Date
7 Jul 2015
Current
Potential
71
75
Property Type
Flat
Built Form
Enclosed Mid-Terrace
Constructed
1930-1949
+
Certificate History
7 Jul 2015
71
75
Total Floor Area
14 sq m
Current CO2 Emissions Level
0.9
Potential CO2 Emissions Level
0.7
CO2 per sq m per Year
64
Mains Gas Available
Yes
Habitable Rooms
1
Number of Extensions
0
Address
Flat D, 389 Grove Green Road
Date
27 Jun 2014
Current
Potential
70
78
Property Type
Flat
Built Form
Enclosed Mid-Terrace
Constructed
1930-1949
+
Certificate History
27 Jun 2014
70
78
Total Floor Area
17 sq m
Current CO2 Emissions Level
1.2
Potential CO2 Emissions Level
1.0
CO2 per sq m per Year
71
Mains Gas Available
No
Habitable Rooms
1
Number of Extensions
0
Address
Flat E, 389 Grove Green Road
Date
27 Jun 2014
Current
Potential
61
77
Property Type
Flat
Built Form
Enclosed Mid-Terrace
Constructed
1930-1949
+
Certificate History
27 Jun 2014
61
77
Total Floor Area
13 sq m
Current CO2 Emissions Level
1.5
Potential CO2 Emissions Level
1.0
CO2 per sq m per Year
118
Mains Gas Available
No
Habitable Rooms
1
Number of Extensions
0
Address
Flat F, 389 Grove Green Road
Date
27 Jun 2014
Current
Potential
72
75
Property Type
Flat
Built Form
Enclosed Mid-Terrace
Constructed
1930-1949
+
Certificate History
27 Jun 2014
72
75
Total Floor Area
14 sq m
Current CO2 Emissions Level
0.9
Potential CO2 Emissions Level
0.7
CO2 per sq m per Year
62
Mains Gas Available
Yes
Habitable Rooms
1
Number of Extensions
0
Address
Ground Floor Flat, 256 Grove Green Road
Date
18 Jul 2021
Current
Potential
77
77
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1930-1949
+
Certificate History
18 Jul 2021
77
77
Total Floor Area
70 sq m
Current CO2 Emissions Level
1.7
Potential CO2 Emissions Level
1.7
CO2 per sq m per Year
24
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
2
Address
Ground Floor Flat, 343 Grove Green Road
Date
31 May 2015
Current
Potential
70
80
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1930-1949
+
Certificate History
31 May 2015
70
80
Total Floor Area
70 sq m
Current CO2 Emissions Level
2.4
Potential CO2 Emissions Level
1.3
CO2 per sq m per Year
35
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
Ground Floor Flat, 351 Grove Green Road
Date
6 Aug 2012
Current
Potential
63
74
Property Type
Flat
Built Form
N/A
Constructed
1900-1929
+
Certificate History
6 Aug 2012
63
74
Total Floor Area
74 sq m
Current CO2 Emissions Level
3.2
Potential CO2 Emissions Level
2.1
CO2 per sq m per Year
43
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
1
Address
Ground Floor Flat, 389 Grove Green Road
Date
19 Jul 2009
Current
Potential
61
72
Property Type
Flat
Built Form
Mid-Terrace
Constructed
before 1900
+
Certificate History
19 Jul 2009
61
72
Total Floor Area
44 sq m
Current CO2 Emissions Level
3.2
Potential CO2 Emissions Level
2.3
CO2 per sq m per Year
67
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
GROUND FLOOR FLAT 1, 349 GROVE GREEN ROAD
Date
18 Jul 2021
Current
Potential
77
77
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1930-1949
+
Certificate History
18 Jul 2021
77
77
Total Floor Area
78 sq m
Current CO2 Emissions Level
1.8
Potential CO2 Emissions Level
1.8
CO2 per sq m per Year
23
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
2
Address
Ground Floor Flat 1, 355 Grove Green Road
Date
19 Dec 2021
Current
Potential
65
76
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1900-1929
+
Certificate History
19 Dec 2021
65
76
Total Floor Area
62 sq m
Current CO2 Emissions Level
2.7
Potential CO2 Emissions Level
1.6
CO2 per sq m per Year
44
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
1
Address
Rear Flat Flat 3 312 Grove Green Road
Date
14 Oct 2020
Current
Potential
65
69
Property Type
Maisonette
Built Form
Enclosed End-Terrace
Constructed
before 1900
+
Certificate History
14 Oct 2020
65
69
Total Floor Area
51 sq m
Current CO2 Emissions Level
2.2
Potential CO2 Emissions Level
1.9
CO2 per sq m per Year
43
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
2
Address
Top Floor Flat, 381 Grove Green Road
Date
20 Oct 2020
Current
Potential
69
75
Property Type
Flat
Built Form
Mid-Terrace
Constructed
before 1900
+
Certificate History
20 Oct 2020
69
75
Total Floor Area
70 sq m
Current CO2 Emissions Level
2.5
Potential CO2 Emissions Level
1.9
CO2 per sq m per Year
36
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
1
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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