PROPERTY ENERGY EFFICIENCY CERTIFICATE DETAILS
Chadwell Heath Lane, ROMFORD, RM6 4YJ
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 Chadwell Heath Lane, RM6 4YJ 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 Chadwell Heath Lane, ROMFORD, RM6 4YJ
Period Covered:
2008 - 31 January 2025
Address
Inspection Date
Current
Potential
Property Type
Built Form
Constructed
Address
286 Chadwell Heath Lane
Date
5 Aug 2019
Current
Potential
63
80
Property Type
House
Built Form
Semi-Detached
Constructed
1930-1949
Certificate History
5 Aug 2019
63
80
Total Floor Area
138 sq m
Current CO2 Emissions Level
5.3
Potential CO2 Emissions Level
2.9
CO2 per sq m per Year
39
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
1
Address
298 Chadwell Heath Lane
Date
2 Aug 2015
Current
Potential
67
79
Property Type
House
Built Form
Mid-Terrace
Constructed
1950-1966
Certificate History
2 Aug 2015
67
79
Total Floor Area
139 sq m
Current CO2 Emissions Level
4.9
Potential CO2 Emissions Level
3.1
CO2 per sq m per Year
35
Mains Gas Available
Yes
Habitable Rooms
8
Number of Extensions
3
Address
300 Chadwell Heath Lane
Date
29 Dec 2021
Current
Potential
70
84
Property Type
House
Built Form
Mid-Terrace
Constructed
1930-1949
Certificate History
29 Dec 2021
70
84
Total Floor Area
151 sq m
Current CO2 Emissions Level
4.7
Potential CO2 Emissions Level
2.3
CO2 per sq m per Year
31
Mains Gas Available
Yes
Habitable Rooms
10
Number of Extensions
2
Address
302 Chadwell Heath Lane
Date
23 Jun 2014
Current
Potential
66
82
Property Type
House
Built Form
End-Terrace
Constructed
1950-1966
Certificate History
23 Jun 2014
66
82
1 Jul 2013
62
77
9 Jun 2009
62
74
Total Floor Area
106 sq m
Current CO2 Emissions Level
4.1
Potential CO2 Emissions Level
2.0
CO2 per sq m per Year
39
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
1
Address
Flat 1 Rosewood Court, Chadwell Heath Lane
Date
30 Jun 2016
Current
Potential
75
77
Property Type
Flat
Built Form
Enclosed Mid-Terrace
Constructed
1991-1995
Certificate History
30 Jun 2016
75
77
Total Floor Area
48 sq m
Current CO2 Emissions Level
2.2
Potential CO2 Emissions Level
2.1
CO2 per sq m per Year
47
Mains Gas Available
No
Habitable Rooms
2
Number of Extensions
0
Address
Flat 11 Rosewood Court, Chadwell Heath Lane
Date
19 Apr 2015
Current
Potential
70
79
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1983-1990
Certificate History
19 Apr 2015
70
79
Total Floor Area
63 sq m
Current CO2 Emissions Level
3.4
Potential CO2 Emissions Level
2.5
CO2 per sq m per Year
54
Mains Gas Available
No
Habitable Rooms
3
Number of Extensions
0
Address
Flat 12 Rosewood Court, Chadwell Heath Lane
Date
22 Jan 2014
Current
Potential
77
82
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1983-1990
Certificate History
22 Jan 2014
77
82
Total Floor Area
50 sq m
Current CO2 Emissions Level
2.4
Potential CO2 Emissions Level
2.0
CO2 per sq m per Year
47
Mains Gas Available
No
Habitable Rooms
2
Number of Extensions
0
Address
FLAT 12A, ROSEWOOD COURT
Date
4 Mar 2021
Current
Potential
73
77
Property Type
Flat
Built Form
Enclosed End-Terrace
Constructed
1983-1990
Certificate History
4 Mar 2021
73
77
Total Floor Area
62 sq m
Current CO2 Emissions Level
3.1
Potential CO2 Emissions Level
2.6
CO2 per sq m per Year
51
Mains Gas Available
No
Habitable Rooms
3
Number of Extensions
0
Address
Flat 14 Rosewood Court, Chadwell Heath Lane
Date
24 Jan 2018
Current
Potential
68
73
Property Type
Flat
Built Form
End-Terrace
Constructed
1983-1990
Certificate History
24 Jan 2018
68
73
Total Floor Area
44 sq m
Current CO2 Emissions Level
2.9
Potential CO2 Emissions Level
2.4
CO2 per sq m per Year
65
Mains Gas Available
No
Habitable Rooms
2
Number of Extensions
0
Address
Flat 17 Rosewood Court, Chadwell Heath Lane
Date
18 Oct 2017
Current
Potential
80
83
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1983-1990
Certificate History
18 Oct 2017
80
83
Total Floor Area
45 sq m
Current CO2 Emissions Level
1.8
Potential CO2 Emissions Level
1.6
CO2 per sq m per Year
40
Mains Gas Available
No
Habitable Rooms
2
Number of Extensions
0
Address
Flat 18, Rosewood Court
Date
28 Feb 2024
Current
Potential
77
80
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1976-1982
Certificate History
28 Feb 2024
77
80
Total Floor Area
47 sq m
Current CO2 Emissions Level
2.1
Potential CO2 Emissions Level
1.9
CO2 per sq m per Year
45
Mains Gas Available
No
Habitable Rooms
2
Number of Extensions
0
Address
Flat 18 Rosewood Court, Chadwell Heath Lane
Date
15 Nov 2010
Current
Potential
75
76
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1983-1990
Certificate History
15 Nov 2010
75
76
Total Floor Area
47 sq m
Current CO2 Emissions Level
2.0
Potential CO2 Emissions Level
2.0
CO2 per sq m per Year
43
Mains Gas Available
No
Habitable Rooms
2
Number of Extensions
0
Address
Flat 2 Rosewood Court, Chadwell Heath Lane
Date
6 Aug 2014
Current
Potential
79
83
Property Type
Flat
Built Form
Enclosed Mid-Terrace
Constructed
1991-1995
Certificate History
6 Aug 2014
79
83
Total Floor Area
45 sq m
Current CO2 Emissions Level
2.1
Potential CO2 Emissions Level
1.8
CO2 per sq m per Year
47
Mains Gas Available
No
Habitable Rooms
2
Number of Extensions
0
Address
Flat 20 Rosewood Court, Chadwell Heath Lane
Date
26 Nov 2009
Current
Potential
77
77
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1983-1990
Certificate History
26 Nov 2009
77
77
Total Floor Area
46 sq m
Current CO2 Emissions Level
2.0
Potential CO2 Emissions Level
2.0
CO2 per sq m per Year
43
Mains Gas Available
No
Habitable Rooms
2
Number of Extensions
0
Address
Flat 21 Rosewood Court, Chadwell Heath Lane
Date
24 Feb 2012
Current
Potential
69
72
Property Type
Flat
Built Form
Enclosed End-Terrace
Constructed
1983-1990
Certificate History
24 Feb 2012
69
72
Total Floor Area
55 sq m
Current CO2 Emissions Level
3.9
Potential CO2 Emissions Level
3.6
CO2 per sq m per Year
71
Mains Gas Available
No
Habitable Rooms
3
Number of Extensions
0
Address
Flat 22 Rosewood Court, Chadwell Heath Lane
Date
11 Dec 2013
Current
Potential
81
83
Property Type
Flat
Built Form
Enclosed Mid-Terrace
Constructed
1996-2002
Certificate History
11 Dec 2013
81
83
Total Floor Area
45 sq m
Current CO2 Emissions Level
1.9
Potential CO2 Emissions Level
1.7
CO2 per sq m per Year
42
Mains Gas Available
No
Habitable Rooms
2
Number of Extensions
0
Address
Flat 23 Rosewood Court, Chadwell Heath Lane
Date
29 Oct 2012
Current
Potential
77
81
Property Type
Flat
Built Form
Enclosed Mid-Terrace
Constructed
1991-1995
Certificate History
29 Oct 2012
77
81
Total Floor Area
68 sq m
Current CO2 Emissions Level
2.8
Potential CO2 Emissions Level
2.4
CO2 per sq m per Year
41
Mains Gas Available
No
Habitable Rooms
3
Number of Extensions
0
Address
Flat 24 Rosewood Court, Chadwell Heath Lane
Date
27 Dec 2017
Current
Potential
74
81
Property Type
Flat
Built Form
Enclosed Mid-Terrace
Constructed
1983-1990
Certificate History
27 Dec 2017
74
81
Total Floor Area
45 sq m
Current CO2 Emissions Level
2.3
Potential CO2 Emissions Level
1.7
CO2 per sq m per Year
51
Mains Gas Available
No
Habitable Rooms
2
Number of Extensions
0
Address
Flat 25, Rosewood Court
Date
28 Jun 2024
Current
Potential
81
84
Property Type
Flat
Built Form
Enclosed Mid-Terrace
Constructed
1996-2002
Certificate History
28 Jun 2024
81
84
13 Jan 2023
77
79
Total Floor Area
46 sq m
Current CO2 Emissions Level
1.7
Potential CO2 Emissions Level
1.5
CO2 per sq m per Year
37
Mains Gas Available
No
Habitable Rooms
2
Number of Extensions
0
Address
Flat 25 Rosewood Court, Chadwell Heath Lane
Date
14 Oct 2008
Current
Potential
73
79
Property Type
Flat
Built Form
Detached
Constructed
1983-1990
Certificate History
14 Oct 2008
73
79
Total Floor Area
48 sq m
Current CO2 Emissions Level
2.3
Potential CO2 Emissions Level
1.9
CO2 per sq m per Year
47
Mains Gas Available
No
Habitable Rooms
2
Number of Extensions
0
Address
Flat 26, Rosewood Court
Date
21 Oct 2024
Current
Potential
65
75
Property Type
Flat
Built Form
Enclosed Mid-Terrace
Constructed
1991-1995
Certificate History
21 Oct 2024
65
75
Total Floor Area
50 sq m
Current CO2 Emissions Level
2.5
Potential CO2 Emissions Level
2.5
CO2 per sq m per Year
50
Mains Gas Available
No
Habitable Rooms
2
Number of Extensions
0
Address
Flat 26 Rosewood Court, Chadwell Heath Lane
Date
23 Oct 2014
Current
Potential
80
82
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1983-1990
Certificate History
23 Oct 2014
80
82
Total Floor Area
46 sq m
Current CO2 Emissions Level
2.0
Potential CO2 Emissions Level
1.9
CO2 per sq m per Year
44
Mains Gas Available
No
Habitable Rooms
2
Number of Extensions
0
Address
Flat 27 Rosewood Court, Chadwell Heath Lane
Date
1 Sep 2015
Current
Potential
77
81
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1983-1990
Certificate History
1 Sep 2015
77
81
Total Floor Area
45 sq m
Current CO2 Emissions Level
2.2
Potential CO2 Emissions Level
1.9
CO2 per sq m per Year
49
Mains Gas Available
No
Habitable Rooms
2
Number of Extensions
0
Address
Flat 28 Rosewood Court, Chadwell Heath Lane
Date
16 Jul 2017
Current
Potential
75
79
Property Type
Flat
Built Form
Enclosed Mid-Terrace
Constructed
1983-1990
Certificate History
16 Jul 2017
75
79
1 Oct 2008
72
78
Total Floor Area
63 sq m
Current CO2 Emissions Level
2.9
Potential CO2 Emissions Level
2.6
CO2 per sq m per Year
46
Mains Gas Available
No
Habitable Rooms
3
Number of Extensions
0
Address
Flat 29, Rosewood Court
Date
15 Nov 2024
Current
Potential
80
83
Property Type
Flat
Built Form
Enclosed Mid-Terrace
Constructed
1991-1995
Certificate History
15 Nov 2024
80
83
Total Floor Area
46 sq m
Current CO2 Emissions Level
1.8
Potential CO2 Emissions Level
1.5
CO2 per sq m per Year
39
Mains Gas Available
No
Habitable Rooms
2
Number of Extensions
0
Address
Flat 3 Rosewood Court, Chadwell Heath Lane
Date
2 Dec 2009
Current
Potential
75
76
Property Type
Flat
Built Form
Enclosed Mid-Terrace
Constructed
1983-1990
Certificate History
2 Dec 2009
75
76
Total Floor Area
47 sq m
Current CO2 Emissions Level
2.0
Potential CO2 Emissions Level
1.9
CO2 per sq m per Year
42
Mains Gas Available
No
Habitable Rooms
2
Number of Extensions
0
Address
Flat 33, Rosewood Court
Date
9 Nov 2022
Current
Potential
78
78
Property Type
Flat
Built Form
Enclosed Mid-Terrace
Constructed
1991-1995
Certificate History
9 Nov 2022
78
78
Total Floor Area
62 sq m
Current CO2 Emissions Level
2.5
Potential CO2 Emissions Level
2.5
CO2 per sq m per Year
41
Mains Gas Available
No
Habitable Rooms
3
Number of Extensions
0
Address
Flat 34 Rosewood Court, Chadwell Heath Lane
Date
25 Mar 2019
Current
Potential
76
82
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1983-1990
Certificate History
25 Mar 2019
76
82
Total Floor Area
47 sq m
Current CO2 Emissions Level
2.2
Potential CO2 Emissions Level
1.7
CO2 per sq m per Year
47
Mains Gas Available
No
Habitable Rooms
2
Number of Extensions
0
Address
Flat 36, Rosewood Court
Date
1 Aug 2023
Current
Potential
74
75
Property Type
Flat
Built Form
Enclosed End-Terrace
Constructed
1991-1995
Certificate History
1 Aug 2023
74
75
Total Floor Area
46 sq m
Current CO2 Emissions Level
2.5
Potential CO2 Emissions Level
2.4
CO2 per sq m per Year
55
Mains Gas Available
No
Habitable Rooms
2
Number of Extensions
0
Address
Flat 36 Rosewood Court, Chadwell Heath Lane
Date
26 Jan 2009
Current
Potential
66
77
Property Type
Flat
Built Form
End-Terrace
Constructed
1976-1982
Certificate History
26 Jan 2009
66
77
Total Floor Area
46 sq m
Current CO2 Emissions Level
2.9
Potential CO2 Emissions Level
2.0
CO2 per sq m per Year
63
Mains Gas Available
No
Habitable Rooms
2
Number of Extensions
0
Address
Flat 37, Rosewood Court
Date
24 Sep 2024
Current
Potential
69
75
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1991-1995
Certificate History
24 Sep 2024
69
75
Total Floor Area
61 sq m
Current CO2 Emissions Level
3.1
Potential CO2 Emissions Level
2.4
CO2 per sq m per Year
50
Mains Gas Available
No
Habitable Rooms
3
Number of Extensions
0
Address
Flat 37 Rosewood Court, Chadwell Heath Lane
Date
11 Dec 2009
Current
Potential
65
76
Property Type
Flat
Built Form
Enclosed Mid-Terrace
Constructed
1983-1990
Certificate History
11 Dec 2009
65
76
Total Floor Area
61 sq m
Current CO2 Emissions Level
2.8
Potential CO2 Emissions Level
2.6
CO2 per sq m per Year
46
Mains Gas Available
No
Habitable Rooms
3
Number of Extensions
0
Address
Flat 38 Rosewood Court, Chadwell Heath Lane
Date
10 Dec 2008
Current
Potential
68
77
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1983-1990
Certificate History
10 Dec 2008
68
77
Total Floor Area
66 sq m
Current CO2 Emissions Level
3.1
Potential CO2 Emissions Level
2.4
CO2 per sq m per Year
47
Mains Gas Available
No
Habitable Rooms
3
Number of Extensions
0
Address
Flat 39 Rosewood Court, Chadwell Heath Lane
Date
30 Apr 2018
Current
Potential
75
80
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1983-1990
Certificate History
30 Apr 2018
75
80
Total Floor Area
46 sq m
Current CO2 Emissions Level
2.2
Potential CO2 Emissions Level
1.9
CO2 per sq m per Year
49
Mains Gas Available
No
Habitable Rooms
2
Number of Extensions
0
Address
Flat 40 Rosewood Court, Chadwell Heath Lane
Date
16 Feb 2015
Current
Potential
71
82
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1976-1982
Certificate History
16 Feb 2015
71
82
Total Floor Area
46 sq m
Current CO2 Emissions Level
2.1
Potential CO2 Emissions Level
1.8
CO2 per sq m per Year
47
Mains Gas Available
No
Habitable Rooms
2
Number of Extensions
0
Address
Flat 41, Rosewood Court
Date
23 Feb 2024
Current
Potential
78
81
Property Type
Flat
Built Form
Enclosed Mid-Terrace
Constructed
1991-1995
Certificate History
23 Feb 2024
78
81
Total Floor Area
47 sq m
Current CO2 Emissions Level
2.1
Potential CO2 Emissions Level
1.9
CO2 per sq m per Year
44
Mains Gas Available
No
Habitable Rooms
2
Number of Extensions
0
Address
Flat 42 Rosewood Court, Chadwell Heath Lane
Date
17 Jul 2017
Current
Potential
76
81
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1983-1990
Certificate History
17 Jul 2017
76
81
Total Floor Area
46 sq m
Current CO2 Emissions Level
2.1
Potential CO2 Emissions Level
1.8
CO2 per sq m per Year
47
Mains Gas Available
No
Habitable Rooms
2
Number of Extensions
0
Address
Flat 43 Rosewood Court, Chadwell Heath Lane
Date
14 Jul 2020
Current
Potential
74
79
Property Type
Flat
Built Form
Enclosed End-Terrace
Constructed
1991-1995
Certificate History
14 Jul 2020
74
79
Total Floor Area
50 sq m
Current CO2 Emissions Level
2.4
Potential CO2 Emissions Level
1.9
CO2 per sq m per Year
48
Mains Gas Available
No
Habitable Rooms
2
Number of Extensions
0
Address
Flat 44 Rosewood Court, Chadwell Heath Lane
Date
15 Sep 2010
Current
Potential
67
73
Property Type
Flat
Built Form
End-Terrace
Constructed
1983-1990
Certificate History
15 Sep 2010
67
73
Total Floor Area
55 sq m
Current CO2 Emissions Level
3.2
Potential CO2 Emissions Level
2.8
CO2 per sq m per Year
58
Mains Gas Available
No
Habitable Rooms
3
Number of Extensions
0
Address
Flat 45 Rosewood Court, Chadwell Heath Lane
Date
7 Jun 2009
Current
Potential
72
77
Property Type
Flat
Built Form
Detached
Constructed
1983-1990
Certificate History
7 Jun 2009
72
77
Total Floor Area
50 sq m
Current CO2 Emissions Level
2.4
Potential CO2 Emissions Level
2.1
CO2 per sq m per Year
47
Mains Gas Available
No
Habitable Rooms
2
Number of Extensions
0
Address
Flat 46 Rosewood Court, Chadwell Heath Lane
Date
14 Aug 2018
Current
Potential
71
77
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1983-1990
Certificate History
14 Aug 2018
71
77
Total Floor Area
46 sq m
Current CO2 Emissions Level
2.5
Potential CO2 Emissions Level
2.0
CO2 per sq m per Year
55
Mains Gas Available
No
Habitable Rooms
2
Number of Extensions
1
Address
Flat 47 Rosewood Court, Chadwell Heath Lane
Date
16 Jan 2015
Current
Potential
78
81
Property Type
Flat
Built Form
Enclosed Mid-Terrace
Constructed
1983-1990
Certificate History
16 Jan 2015
78
81
Total Floor Area
44 sq m
Current CO2 Emissions Level
2.0
Potential CO2 Emissions Level
1.8
CO2 per sq m per Year
46
Mains Gas Available
No
Habitable Rooms
2
Number of Extensions
0
Address
Flat 48 Rosewood Court, Chadwell Heath Lane
Date
30 Jul 2009
Current
Potential
63
71
Property Type
Flat
Built Form
Enclosed End-Terrace
Constructed
1983-1990
Certificate History
30 Jul 2009
63
71
Total Floor Area
55 sq m
Current CO2 Emissions Level
3.3
Potential CO2 Emissions Level
2.8
CO2 per sq m per Year
60
Mains Gas Available
No
Habitable Rooms
3
Number of Extensions
0
Address
Flat 49, Rosewood Court
Date
19 Aug 2021
Current
Potential
69
81
Property Type
Flat
Built Form
Enclosed Mid-Terrace
Constructed
1991-1995
Certificate History
19 Aug 2021
69
81
Total Floor Area
51 sq m
Current CO2 Emissions Level
2.0
Potential CO2 Emissions Level
1.9
CO2 per sq m per Year
39
Mains Gas Available
No
Habitable Rooms
3
Number of Extensions
0
Address
Flat 49 Rosewood Court, Chadwell Heath Lane
Date
30 Jul 2009
Current
Potential
68
71
Property Type
Flat
Built Form
Enclosed End-Terrace
Constructed
1983-1990
Certificate History
30 Jul 2009
68
71
Total Floor Area
55 sq m
Current CO2 Emissions Level
3.3
Potential CO2 Emissions Level
3.1
CO2 per sq m per Year
60
Mains Gas Available
No
Habitable Rooms
3
Number of Extensions
0
Address
Flat 5 Rosewood Court, Chadwell Heath Lane
Date
19 Nov 2015
Current
Potential
66
81
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1983-1990
Certificate History
19 Nov 2015
66
81
Total Floor Area
46 sq m
Current CO2 Emissions Level
1.9
Potential CO2 Emissions Level
1.9
CO2 per sq m per Year
41
Mains Gas Available
No
Habitable Rooms
2
Number of Extensions
0
Address
Flat 6 Rosewood Court, Chadwell Heath Lane
Date
11 Feb 2017
Current
Potential
78
80
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1996-2002
Certificate History
11 Feb 2017
78
80
Total Floor Area
63 sq m
Current CO2 Emissions Level
2.5
Potential CO2 Emissions Level
2.3
CO2 per sq m per Year
40
Mains Gas Available
No
Habitable Rooms
2
Number of Extensions
0
Address
Flat 9 Rosewood Court, Chadwell Heath Lane
Date
17 Sep 2020
Current
Potential
70
80
Property Type
Flat
Built Form
Detached
Constructed
1976-1982
Certificate History
17 Sep 2020
70
80
17 Sep 2020
70
80
Total Floor Area
64 sq m
Current CO2 Emissions Level
3.5
Potential CO2 Emissions Level
2.5
CO2 per sq m per Year
55
Mains Gas Available
No
Habitable Rooms
3
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.
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