PROPERTY ENERGY EFFICIENCY CERTIFICATE DETAILS
Maddren Way, MIDDLESBROUGH, TS5 5BB

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 Maddren Way, TS5 5BB 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 Maddren Way, MIDDLESBROUGH, TS5 5BB
Period Covered: 2008 - 31 January 2025

Address
Inspection Date
Current
Potential
Property Type
Built Form
Constructed
Address
1 Maddren Way
Date
25 Jan 2013
Current
Potential
72
84
Property Type
House
Built Form
End-Terrace
Constructed
2007 onwards
+
Certificate History
25 Jan 2013
72
84
Total Floor Area
114 sq m
Current CO2 Emissions Level
3.7
Potential CO2 Emissions Level
2.1
CO2 per sq m per Year
32
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
10 Maddren Way
Date
8 Mar 2024
Current
Potential
73
73
Property Type
Flat
Built Form
End-Terrace
Constructed
2003-2006
+
Certificate History
8 Mar 2024
73
73
28 Feb 2014
67
70
Total Floor Area
63 sq m
Current CO2 Emissions Level
2.0
Potential CO2 Emissions Level
2.0
CO2 per sq m per Year
32
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
11 Maddren Way
Date
12 Feb 2010
Current
Potential
78
79
Property Type
House
Built Form
Mid-Terrace
Constructed
2003-2006
+
Certificate History
12 Feb 2010
78
79
Total Floor Area
79 sq m
Current CO2 Emissions Level
2.0
Potential CO2 Emissions Level
2.0
CO2 per sq m per Year
26
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
11 MADDREN WAY, MIDDLESBROUGH
Date
15 Feb 2021
Current
Potential
74
87
Property Type
House
Built Form
Mid-Terrace
Constructed
2003-2006
+
Certificate History
15 Feb 2021
74
87
Total Floor Area
79 sq m
Current CO2 Emissions Level
2.3
Potential CO2 Emissions Level
1.1
CO2 per sq m per Year
29
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
12 Maddren Way
Date
3 Apr 2022
Current
Potential
75
89
Property Type
House
Built Form
Mid-Terrace
Constructed
2003-2006
+
Certificate History
3 Apr 2022
75
89
Total Floor Area
78 sq m
Current CO2 Emissions Level
2.4
Potential CO2 Emissions Level
1.0
CO2 per sq m per Year
30
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
14 Maddren Way
Date
24 Jul 2011
Current
Potential
74
75
Property Type
House
Built Form
Detached
Constructed
2003-2006
+
Certificate History
24 Jul 2011
74
75
Total Floor Area
110 sq m
Current CO2 Emissions Level
3.0
Potential CO2 Emissions Level
2.9
CO2 per sq m per Year
27
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
0
Address
15 Maddren Way
Date
19 Mar 2020
Current
Potential
77
87
Property Type
House
Built Form
Detached
Constructed
2003-2006
+
Certificate History
19 Mar 2020
77
87
Total Floor Area
109 sq m
Current CO2 Emissions Level
2.8
Potential CO2 Emissions Level
1.7
CO2 per sq m per Year
26
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
0
Address
16 Maddren Way
Date
6 Oct 2010
Current
Potential
80
80
Property Type
House
Built Form
Detached
Constructed
2003-2006
+
Certificate History
6 Oct 2010
80
80
Total Floor Area
109 sq m
Current CO2 Emissions Level
2.6
Potential CO2 Emissions Level
2.6
CO2 per sq m per Year
23
Mains Gas Available
Yes
Habitable Rooms
8
Number of Extensions
0
Address
16 MADDREN WAY, MIDDLESBROUGH
Date
3 May 2021
Current
Potential
70
84
Property Type
House
Built Form
Detached
Constructed
2003-2006
+
Certificate History
3 May 2021
70
84
Total Floor Area
69 sq m
Current CO2 Emissions Level
2.6
Potential CO2 Emissions Level
1.5
CO2 per sq m per Year
38
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
0
Address
18 Maddren Way
Date
24 Nov 2014
Current
Potential
76
76
Property Type
Flat
Built Form
Detached
Constructed
2003-2006
+
Certificate History
24 Nov 2014
76
76
Total Floor Area
55 sq m
Current CO2 Emissions Level
1.6
Potential CO2 Emissions Level
1.6
CO2 per sq m per Year
29
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
19 Maddren Way
Date
4 Aug 2020
Current
Potential
74
87
Property Type
House
Built Form
Mid-Terrace
Constructed
2003-2006
+
Certificate History
4 Aug 2020
74
87
18 Aug 2013
76
89
Total Floor Area
80 sq m
Current CO2 Emissions Level
2.3
Potential CO2 Emissions Level
1.2
CO2 per sq m per Year
29
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
2 Maddren Way
Date
15 Nov 2019
Current
Potential
73
84
Property Type
House
Built Form
Mid-Terrace
Constructed
2003-2006
+
Certificate History
15 Nov 2019
73
84
30 Oct 2009
80
81
Total Floor Area
106 sq m
Current CO2 Emissions Level
3.1
Potential CO2 Emissions Level
1.8
CO2 per sq m per Year
29
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
20 Maddren Way
Date
15 Nov 2023
Current
Potential
74
89
Property Type
House
Built Form
Mid-Terrace
Constructed
2003-2006
+
Certificate History
15 Nov 2023
74
89
Total Floor Area
80 sq m
Current CO2 Emissions Level
2.5
Potential CO2 Emissions Level
1.1
CO2 per sq m per Year
31
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
21 Maddren Way
Date
17 Oct 2024
Current
Potential
74
87
Property Type
House
Built Form
End-Terrace
Constructed
2003-2006
+
Certificate History
17 Oct 2024
74
87
24 Nov 2014
73
87
19 Aug 2013
73
87
Total Floor Area
80 sq m
Current CO2 Emissions Level
2.3
Potential CO2 Emissions Level
1.1
CO2 per sq m per Year
29
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
22 Maddren Way
Date
28 Jul 2020
Current
Potential
72
72
Property Type
Flat
Built Form
End-Terrace
Constructed
2003-2006
+
Certificate History
28 Jul 2020
72
72
21 Jan 2015
68
68
Total Floor Area
65 sq m
Current CO2 Emissions Level
2.2
Potential CO2 Emissions Level
2.2
CO2 per sq m per Year
34
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
23 Maddren Way
Date
21 Jul 2020
Current
Potential
72
87
Property Type
House
Built Form
Mid-Terrace
Constructed
2003-2006
+
Certificate History
21 Jul 2020
72
87
24 Nov 2014
75
89
29 Jul 2013
77
89
Total Floor Area
82 sq m
Current CO2 Emissions Level
2.6
Potential CO2 Emissions Level
1.2
CO2 per sq m per Year
31
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
24 Maddren Way
Date
31 Aug 2020
Current
Potential
75
87
Property Type
House
Built Form
Mid-Terrace
Constructed
2003-2006
+
Certificate History
31 Aug 2020
75
87
24 Nov 2014
77
89
Total Floor Area
83 sq m
Current CO2 Emissions Level
2.3
Potential CO2 Emissions Level
1.2
CO2 per sq m per Year
28
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
25 Maddren Way
Date
18 Aug 2013
Current
Potential
73
87
Property Type
House
Built Form
End-Terrace
Constructed
2003-2006
+
Certificate History
18 Aug 2013
73
87
Total Floor Area
80 sq m
Current CO2 Emissions Level
2.4
Potential CO2 Emissions Level
1.1
CO2 per sq m per Year
30
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
26 Maddren Way
Date
21 Jul 2020
Current
Potential
73
73
Property Type
Flat
Built Form
Detached
Constructed
2003-2006
+
Certificate History
21 Jul 2020
73
73
18 Aug 2013
75
76
Total Floor Area
67 sq m
Current CO2 Emissions Level
2.3
Potential CO2 Emissions Level
2.2
CO2 per sq m per Year
35
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
27 Maddren Way
Date
20 Sep 2020
Current
Potential
75
88
Property Type
House
Built Form
End-Terrace
Constructed
2003-2006
+
Certificate History
20 Sep 2020
75
88
1 Feb 2013
74
87
Total Floor Area
84 sq m
Current CO2 Emissions Level
2.4
Potential CO2 Emissions Level
1.2
CO2 per sq m per Year
29
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
28 Maddren Way
Date
22 Jun 2011
Current
Potential
77
79
Property Type
House
Built Form
Mid-Terrace
Constructed
2003-2006
+
Certificate History
22 Jun 2011
77
79
Total Floor Area
79 sq m
Current CO2 Emissions Level
1.9
Potential CO2 Emissions Level
1.8
CO2 per sq m per Year
24
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
29 Maddren Way
Date
4 Feb 2013
Current
Potential
76
89
Property Type
House
Built Form
Mid-Terrace
Constructed
2003-2006
+
Certificate History
4 Feb 2013
76
89
Total Floor Area
80 sq m
Current CO2 Emissions Level
2.1
Potential CO2 Emissions Level
0.8
CO2 per sq m per Year
26
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
3 Maddren Way
Date
16 May 2025
Current
Potential
76
85
Property Type
House
Built Form
End-Terrace
Constructed
2007-2011
+
Certificate History
16 May 2025
76
85
2 Jan 2011
76
78
Total Floor Area
106 sq m
Current CO2 Emissions Level
2.7
Potential CO2 Emissions Level
1.6
CO2 per sq m per Year
25
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
0
Address
30 Maddren Way
Date
22 Aug 2013
Current
Potential
74
87
Property Type
House
Built Form
End-Terrace
Constructed
2003-2006
+
Certificate History
22 Aug 2013
74
87
Total Floor Area
80 sq m
Current CO2 Emissions Level
2.3
Potential CO2 Emissions Level
1.1
CO2 per sq m per Year
29
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
32 31-42 MADDREN WAY, MIDDLESBROUGH
Date
29 Sep 2020
Current
Potential
75
83
Property Type
Flat
Built Form
Enclosed End-Terrace
Constructed
2003-2006
+
Certificate History
29 Sep 2020
75
83
Total Floor Area
29 sq m
Current CO2 Emissions Level
1.5
Potential CO2 Emissions Level
1.5
CO2 per sq m per Year
51
Mains Gas Available
No
Habitable Rooms
2
Number of Extensions
0
Address
32 Maddren Way
Date
16 Apr 2009
Current
Potential
80
81
Property Type
Flat
Built Form
Semi-Detached
Constructed
2003-2006
+
Certificate History
16 Apr 2009
80
81
Total Floor Area
32 sq m
Current CO2 Emissions Level
1.6
Potential CO2 Emissions Level
1.6
CO2 per sq m per Year
50
Mains Gas Available
No
Habitable Rooms
2
Number of Extensions
0
Address
33 Maddren Way
Date
19 May 2025
Current
Potential
58
80
Property Type
Flat
Built Form
Semi-Detached
Constructed
2003-2006
+
Certificate History
19 May 2025
58
80
4 Oct 2008
70
84
Total Floor Area
33 sq m
Current CO2 Emissions Level
2.2
Potential CO2 Emissions Level
1.9
CO2 per sq m per Year
66
Mains Gas Available
No
Habitable Rooms
2
Number of Extensions
0
Address
34 Maddren Way
Date
19 Aug 2011
Current
Potential
73
80
Property Type
Flat
Built Form
N/A
Constructed
2003-2006
+
Certificate History
19 Aug 2011
73
80
Total Floor Area
36 sq m
Current CO2 Emissions Level
2.0
Potential CO2 Emissions Level
2.0
CO2 per sq m per Year
56
Mains Gas Available
No
Habitable Rooms
2
Number of Extensions
0
Address
35 Maddren Way
Date
8 Oct 2018
Current
Potential
80
85
Property Type
Flat
Built Form
Enclosed End-Terrace
Constructed
2003-2006
+
Certificate History
8 Oct 2018
80
85
30 Sep 2008
76
84
Total Floor Area
34 sq m
Current CO2 Emissions Level
1.3
Potential CO2 Emissions Level
1.3
CO2 per sq m per Year
38
Mains Gas Available
No
Habitable Rooms
2
Number of Extensions
0
Address
36 Maddren Way
Date
2 Sep 2022
Current
Potential
68
82
Property Type
Flat
Built Form
Enclosed End-Terrace
Constructed
1996-2002
+
Certificate History
2 Sep 2022
68
82
Total Floor Area
33 sq m
Current CO2 Emissions Level
1.7
Potential CO2 Emissions Level
1.7
CO2 per sq m per Year
50
Mains Gas Available
No
Habitable Rooms
2
Number of Extensions
0
Address
37 Maddren Way
Date
14 Oct 2015
Current
Potential
81
85
Property Type
Flat
Built Form
Mid-Terrace
Constructed
2003-2006
+
Certificate History
14 Oct 2015
81
85
Total Floor Area
34 sq m
Current CO2 Emissions Level
1.3
Potential CO2 Emissions Level
1.2
CO2 per sq m per Year
37
Mains Gas Available
No
Habitable Rooms
2
Number of Extensions
0
Address
38 Maddren Way
Date
19 Sep 2022
Current
Potential
76
82
Property Type
Flat
Built Form
Semi-Detached
Constructed
2003-2006
+
Certificate History
19 Sep 2022
76
82
17 Oct 2011
82
86
Total Floor Area
36 sq m
Current CO2 Emissions Level
1.7
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
39 Maddren Way
Date
15 Jan 2009
Current
Potential
83
83
Property Type
Flat
Built Form
Enclosed Mid-Terrace
Constructed
2003-2006
+
Certificate History
15 Jan 2009
83
83
Total Floor Area
34 sq m
Current CO2 Emissions Level
1.3
Potential CO2 Emissions Level
1.3
CO2 per sq m per Year
38
Mains Gas Available
No
Habitable Rooms
2
Number of Extensions
0
Address
4 Maddren Way
Date
21 Jul 2020
Current
Potential
73
73
Property Type
Flat
Built Form
Detached
Constructed
2003-2006
+
Certificate History
21 Jul 2020
73
73
8 Feb 2010
78
79
Total Floor Area
64 sq m
Current CO2 Emissions Level
2.1
Potential CO2 Emissions Level
2.1
CO2 per sq m per Year
33
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
40 Maddren Way
Date
8 Aug 2012
Current
Potential
68
83
Property Type
Flat
Built Form
End-Terrace
Constructed
2003-2006
+
Certificate History
8 Aug 2012
68
83
Total Floor Area
30 sq m
Current CO2 Emissions Level
1.7
Potential CO2 Emissions Level
1.5
CO2 per sq m per Year
56
Mains Gas Available
No
Habitable Rooms
2
Number of Extensions
0
Address
41 Maddren Way
Date
14 Aug 2019
Current
Potential
75
82
Property Type
Flat
Built Form
Mid-Terrace
Constructed
2003-2006
+
Certificate History
14 Aug 2019
75
82
9 Dec 2008
72
82
Total Floor Area
33 sq m
Current CO2 Emissions Level
1.7
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
42 MADDREN WAY
Date
15 Jun 2021
Current
Potential
73
80
Property Type
Flat
Built Form
Semi-Detached
Constructed
2003-2006
+
Certificate History
15 Jun 2021
73
80
Total Floor Area
34 sq m
Current CO2 Emissions Level
1.9
Potential CO2 Emissions Level
1.9
CO2 per sq m per Year
55
Mains Gas Available
No
Habitable Rooms
2
Number of Extensions
0
Address
42 Maddren Way
Date
10 Oct 2010
Current
Potential
69
80
Property Type
Flat
Built Form
Detached
Constructed
2003-2006
+
Certificate History
10 Oct 2010
69
80
Total Floor Area
35 sq m
Current CO2 Emissions Level
1.6
Potential CO2 Emissions Level
1.6
CO2 per sq m per Year
45
Mains Gas Available
No
Habitable Rooms
2
Number of Extensions
0
Address
43 Maddren Way
Date
1 Sep 2015
Current
Potential
75
82
Property Type
Flat
Built Form
Mid-Terrace
Constructed
2003-2006
+
Certificate History
1 Sep 2015
75
82
Total Floor Area
36 sq m
Current CO2 Emissions Level
1.7
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
44 Maddren Way
Date
28 Nov 2008
Current
Potential
67
80
Property Type
Flat
Built Form
Enclosed Mid-Terrace
Constructed
2003-2006
+
Certificate History
28 Nov 2008
67
80
Total Floor Area
36 sq m
Current CO2 Emissions Level
1.7
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
45 Maddren Way
Date
17 Oct 2018
Current
Potential
70
79
Property Type
Flat
Built Form
Mid-Terrace
Constructed
2003-2006
+
Certificate History
17 Oct 2018
70
79
1 Oct 2008
70
74
Total Floor Area
35 sq m
Current CO2 Emissions Level
2.0
Potential CO2 Emissions Level
2.1
CO2 per sq m per Year
57
Mains Gas Available
No
Habitable Rooms
2
Number of Extensions
0
Address
46 Maddren Way
Date
5 Jul 2023
Current
Potential
73
81
Property Type
Flat
Built Form
Enclosed End-Terrace
Constructed
2003-2006
+
Certificate History
5 Jul 2023
73
81
Total Floor Area
34 sq m
Current CO2 Emissions Level
1.9
Potential CO2 Emissions Level
1.9
CO2 per sq m per Year
55
Mains Gas Available
No
Habitable Rooms
2
Number of Extensions
0
Address
47 Maddren Way
Date
2 Sep 2021
Current
Potential
72
84
Property Type
Flat
Built Form
Mid-Terrace
Constructed
2003-2006
+
Certificate History
2 Sep 2021
72
84
Total Floor Area
33 sq m
Current CO2 Emissions Level
1.4
Potential CO2 Emissions Level
1.5
CO2 per sq m per Year
44
Mains Gas Available
No
Habitable Rooms
2
Number of Extensions
0
Address
48 Maddren Way
Date
21 Aug 2012
Current
Potential
80
83
Property Type
Flat
Built Form
Mid-Terrace
Constructed
2003-2006
+
Certificate History
21 Aug 2012
80
83
Total Floor Area
32 sq m
Current CO2 Emissions Level
1.4
Potential CO2 Emissions Level
1.3
CO2 per sq m per Year
44
Mains Gas Available
No
Habitable Rooms
2
Number of Extensions
0
Address
49 Maddren Way
Date
7 Jan 2025
Current
Potential
80
84
Property Type
Flat
Built Form
Semi-Detached
Constructed
2003-2006
+
Certificate History
7 Jan 2025
80
84
13 Mar 2013
77
82
Total Floor Area
35 sq m
Current CO2 Emissions Level
1.3
Potential CO2 Emissions Level
1.4
CO2 per sq m per Year
39
Mains Gas Available
No
Habitable Rooms
2
Number of Extensions
0
Address
5 Maddren Way
Date
25 Jun 2015
Current
Potential
75
86
Property Type
House
Built Form
End-Terrace
Constructed
2003-2006
+
Certificate History
25 Jun 2015
75
86
Total Floor Area
86 sq m
Current CO2 Emissions Level
2.6
Potential CO2 Emissions Level
1.5
CO2 per sq m per Year
30
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
50 43-54 MADDREN WAY, MIDDLESBROUGH
Date
27 Feb 2021
Current
Potential
83
86
Property Type
Flat
Built Form
Mid-Terrace
Constructed
2007-2011
+
Certificate History
27 Feb 2021
83
86
Total Floor Area
30 sq m
Current CO2 Emissions Level
1.1
Potential CO2 Emissions Level
1.1
CO2 per sq m per Year
36
Mains Gas Available
No
Habitable Rooms
2
Number of Extensions
0
Address
6 Maddren Way
Date
25 Feb 2017
Current
Potential
72
84
Property Type
House
Built Form
Mid-Terrace
Constructed
2003-2006
+
Certificate History
25 Feb 2017
72
84
Total Floor Area
94 sq m
Current CO2 Emissions Level
2.8
Potential CO2 Emissions Level
1.6
CO2 per sq m per Year
30
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
8 Maddren Way
Date
3 Dec 2018
Current
Potential
75
88
Property Type
House
Built Form
End-Terrace
Constructed
2003-2006
+
Certificate History
3 Dec 2018
75
88
11 Aug 2010
79
80
Total Floor Area
80 sq m
Current CO2 Emissions Level
2.3
Potential CO2 Emissions Level
1.1
CO2 per sq m per Year
29
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
9 Maddren Way
Date
26 Aug 2020
Current
Potential
75
75
Property Type
Flat
Built Form
Detached
Constructed
2003-2006
+
Certificate History
26 Aug 2020
75
75
Total Floor Area
64 sq m
Current CO2 Emissions Level
2.0
Potential CO2 Emissions Level
2.0
CO2 per sq m per Year
31
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
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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