PROPERTY ENERGY EFFICIENCY CERTIFICATE DETAILS
Antonine Way, CARLISLE, CA3 0LG

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 Antonine Way, CA3 0LG 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 Antonine Way, CARLISLE, CA3 0LG
Period Covered: 2008 - 31 October 2024

Address
Inspection Date
Current
Potential
Property Type
Built Form
Constructed
Address
1 Antonine Way, Houghton
Date
24 Jun 2014
Current
Potential
62
83
Property Type
House
Built Form
Detached
Constructed
1983-1990
+
Certificate History
24 Jun 2014
62
83
3 Nov 2008
62
70
Total Floor Area
127 sq m
Current CO2 Emissions Level
5.6
Potential CO2 Emissions Level
2.5
CO2 per sq m per Year
44
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
1
Address
10 Antonine Way, Houghton
Date
3 Apr 2017
Current
Potential
67
87
Property Type
House
Built Form
Mid-Terrace
Constructed
1996-2002
+
Certificate History
3 Apr 2017
67
87
Total Floor Area
59 sq m
Current CO2 Emissions Level
2.1
Potential CO2 Emissions Level
0.8
CO2 per sq m per Year
36
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
1
Address
11 Antonine Way, Houghton
Date
17 Feb 2015
Current
Potential
64
84
Property Type
Bungalow
Built Form
End-Terrace
Constructed
1996-2002
+
Certificate History
17 Feb 2015
64
84
Total Floor Area
55 sq m
Current CO2 Emissions Level
2.8
Potential CO2 Emissions Level
1.2
CO2 per sq m per Year
50
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
14 Antonine Way, Houghton
Date
17 Jun 2014
Current
Potential
68
85
Property Type
House
Built Form
Semi-Detached
Constructed
1996-2002
+
Certificate History
17 Jun 2014
68
85
16 Sep 2009
74
75
Total Floor Area
86 sq m
Current CO2 Emissions Level
3.3
Potential CO2 Emissions Level
1.6
CO2 per sq m per Year
38
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
2
Address
16 Antonine Way, Houghton
Date
11 Mar 2009
Current
Potential
75
79
Property Type
House
Built Form
End-Terrace
Constructed
1996-2002
+
Certificate History
11 Mar 2009
75
79
Total Floor Area
65 sq m
Current CO2 Emissions Level
2.3
Potential CO2 Emissions Level
2.0
CO2 per sq m per Year
35
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
18 Antonine Way, Houghton
Date
13 Feb 2009
Current
Potential
77
79
Property Type
House
Built Form
Mid-Terrace
Constructed
1996-2002
+
Certificate History
13 Feb 2009
77
79
Total Floor Area
58 sq m
Current CO2 Emissions Level
1.8
Potential CO2 Emissions Level
1.6
CO2 per sq m per Year
31
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
19 Antonine Way, Houghton
Date
15 Feb 2010
Current
Potential
67
75
Property Type
Bungalow
Built Form
Semi-Detached
Constructed
1996-2002
+
Certificate History
15 Feb 2010
67
75
Total Floor Area
54 sq m
Current CO2 Emissions Level
2.6
Potential CO2 Emissions Level
1.9
CO2 per sq m per Year
47
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
2 Antonine Way, Houghton
Date
17 Jun 2014
Current
Potential
59
86
Property Type
House
Built Form
End-Terrace
Constructed
1996-2002
+
Certificate History
17 Jun 2014
59
86
18 Sep 2010
77
79
Total Floor Area
118 sq m
Current CO2 Emissions Level
5.8
Potential CO2 Emissions Level
1.8
CO2 per sq m per Year
49
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
2
Address
21 Antonine Way, Houghton
Date
1 Sep 2014
Current
Potential
68
89
Property Type
House
Built Form
Semi-Detached
Constructed
1996-2002
+
Certificate History
1 Sep 2014
68
89
3 Dec 2008
61
69
Total Floor Area
68 sq m
Current CO2 Emissions Level
2.8
Potential CO2 Emissions Level
0.8
CO2 per sq m per Year
41
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
22 Antonine Way, Houghton
Date
17 Jun 2014
Current
Potential
67
87
Property Type
House
Built Form
End-Terrace
Constructed
1996-2002
+
Certificate History
17 Jun 2014
67
87
20 Mar 2012
64
70
Total Floor Area
71 sq m
Current CO2 Emissions Level
3.0
Potential CO2 Emissions Level
1.2
CO2 per sq m per Year
42
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
1
Address
23 Antonine Way, Houghton
Date
4 Aug 2014
Current
Potential
66
88
Property Type
House
Built Form
Semi-Detached
Constructed
1996-2002
+
Certificate History
4 Aug 2014
66
88
Total Floor Area
78 sq m
Current CO2 Emissions Level
3.3
Potential CO2 Emissions Level
1.1
CO2 per sq m per Year
42
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
24 Antonine Way, Houghton
Date
11 May 2023
Current
Potential
69
82
Property Type
House
Built Form
Detached
Constructed
1996-2002
+
Certificate History
11 May 2023
69
82
15 Sep 2013
68
81
Total Floor Area
98 sq m
Current CO2 Emissions Level
3.7
Potential CO2 Emissions Level
2.2
CO2 per sq m per Year
38
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
1
Address
25 Antonine Way, Houghton
Date
13 Jul 2014
Current
Potential
65
83
Property Type
House
Built Form
Detached
Constructed
1996-2002
+
Certificate History
13 Jul 2014
65
83
Total Floor Area
100 sq m
Current CO2 Emissions Level
4.2
Potential CO2 Emissions Level
2.1
CO2 per sq m per Year
42
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
1
Address
26 Antonine Way, Houghton
Date
7 Aug 2014
Current
Potential
63
87
Property Type
House
Built Form
Detached
Constructed
1996-2002
+
Certificate History
7 Aug 2014
63
87
6 May 2014
69
85
Total Floor Area
71 sq m
Current CO2 Emissions Level
3.4
Potential CO2 Emissions Level
1.1
CO2 per sq m per Year
48
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
0
Address
27 Antonine Way, Houghton
Date
7 Aug 2014
Current
Potential
63
89
Property Type
House
Built Form
Detached
Constructed
1996-2002
+
Certificate History
7 Aug 2014
63
89
21 Nov 2008
55
66
Total Floor Area
68 sq m
Current CO2 Emissions Level
3.3
Potential CO2 Emissions Level
0.9
CO2 per sq m per Year
49
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
28 Antonine Way, Houghton
Date
12 Oct 2014
Current
Potential
63
87
Property Type
House
Built Form
Detached
Constructed
1996-2002
+
Certificate History
12 Oct 2014
63
87
Total Floor Area
71 sq m
Current CO2 Emissions Level
3.4
Potential CO2 Emissions Level
1.1
CO2 per sq m per Year
48
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
0
Address
29 Antonine Way, Houghton
Date
1 Aug 2023
Current
Potential
62
80
Property Type
House
Built Form
Detached
Constructed
1991-1995
+
Certificate History
1 Aug 2023
62
80
Total Floor Area
79 sq m
Current CO2 Emissions Level
3.9
Potential CO2 Emissions Level
2.2
CO2 per sq m per Year
50
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
1
Address
3 Antonine Way, Houghton
Date
13 Jul 2014
Current
Potential
62
86
Property Type
House
Built Form
Semi-Detached
Constructed
1996-2002
+
Certificate History
13 Jul 2014
62
86
17 Mar 2011
71
75
Total Floor Area
69 sq m
Current CO2 Emissions Level
3.3
Potential CO2 Emissions Level
1.1
CO2 per sq m per Year
48
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
30 Antonine Way, Houghton
Date
16 Feb 2023
Current
Potential
60
79
Property Type
House
Built Form
Semi-Detached
Constructed
1996-2002
+
Certificate History
16 Feb 2023
60
79
16 Feb 2023
60
80
13 Jul 2014
56
82
Total Floor Area
86 sq m
Current CO2 Emissions Level
4.7
Potential CO2 Emissions Level
2.5
CO2 per sq m per Year
55
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
31 ANTONINE WAY, HOUGHTON
Date
27 Sep 2020
Current
Potential
68
83
Property Type
House
Built Form
Detached
Constructed
1996-2002
+
Certificate History
27 Sep 2020
68
83
Total Floor Area
68 sq m
Current CO2 Emissions Level
2.9
Potential CO2 Emissions Level
1.7
CO2 per sq m per Year
43
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
31 Antonine Way, Houghton
Date
12 Oct 2014
Current
Potential
61
86
Property Type
House
Built Form
Detached
Constructed
1996-2002
+
Certificate History
12 Oct 2014
61
86
7 Aug 2014
61
86
Total Floor Area
85 sq m
Current CO2 Emissions Level
4.2
Potential CO2 Emissions Level
1.4
CO2 per sq m per Year
49
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
32 Antonine Way, Houghton
Date
7 Aug 2014
Current
Potential
69
88
Property Type
House
Built Form
Semi-Detached
Constructed
1996-2002
+
Certificate History
7 Aug 2014
69
88
Total Floor Area
69 sq m
Current CO2 Emissions Level
2.7
Potential CO2 Emissions Level
1.0
CO2 per sq m per Year
40
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
33 Antonine Way, Houghton
Date
14 Aug 2014
Current
Potential
63
84
Property Type
House
Built Form
Detached
Constructed
1991-1995
+
Certificate History
14 Aug 2014
63
84
Total Floor Area
97 sq m
Current CO2 Emissions Level
4.5
Potential CO2 Emissions Level
1.9
CO2 per sq m per Year
46
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
0
Address
34 Antonine Way, Houghton
Date
4 Sep 2014
Current
Potential
63
91
Property Type
House
Built Form
Semi-Detached
Constructed
2003-2006
+
Certificate History
4 Sep 2014
63
91
11 Jan 2013
67
85
Total Floor Area
67 sq m
Current CO2 Emissions Level
3.3
Potential CO2 Emissions Level
0.7
CO2 per sq m per Year
49
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
35 Antonine Way, Houghton
Date
12 Sep 2010
Current
Potential
74
76
Property Type
House
Built Form
Detached
Constructed
1996-2002
+
Certificate History
12 Sep 2010
74
76
Total Floor Area
81 sq m
Current CO2 Emissions Level
2.7
Potential CO2 Emissions Level
2.6
CO2 per sq m per Year
33
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
36 Antonine Way, Houghton
Date
1 Sep 2014
Current
Potential
65
87
Property Type
House
Built Form
Semi-Detached
Constructed
1996-2002
+
Certificate History
1 Sep 2014
65
87
11 May 2014
60
80
Total Floor Area
80 sq m
Current CO2 Emissions Level
3.5
Potential CO2 Emissions Level
1.2
CO2 per sq m per Year
44
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
1
Address
38 Antonine Way, Houghton
Date
22 Sep 2014
Current
Potential
66
90
Property Type
House
Built Form
Semi-Detached
Constructed
1996-2002
+
Certificate History
22 Sep 2014
66
90
Total Floor Area
65 sq m
Current CO2 Emissions Level
2.9
Potential CO2 Emissions Level
0.7
CO2 per sq m per Year
45
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
39 Antonine Way, Houghton
Date
11 Aug 2014
Current
Potential
64
83
Property Type
House
Built Form
Detached
Constructed
1996-2002
+
Certificate History
11 Aug 2014
64
83
10 Jun 2014
71
86
Total Floor Area
104 sq m
Current CO2 Emissions Level
4.6
Potential CO2 Emissions Level
2.1
CO2 per sq m per Year
44
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
0
Address
4 Antonine Way, Houghton
Date
4 Aug 2014
Current
Potential
50
85
Property Type
House
Built Form
Mid-Terrace
Constructed
1996-2002
+
Certificate History
4 Aug 2014
50
85
Total Floor Area
73 sq m
Current CO2 Emissions Level
5.0
Potential CO2 Emissions Level
1.4
CO2 per sq m per Year
69
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
41 Antonine Way, Houghton
Date
24 Jun 2014
Current
Potential
57
87
Property Type
House
Built Form
Detached
Constructed
1983-1990
+
Certificate History
24 Jun 2014
57
87
Total Floor Area
72 sq m
Current CO2 Emissions Level
4.2
Potential CO2 Emissions Level
1.2
CO2 per sq m per Year
57
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
42 Antonine Way, Houghton
Date
1 Oct 2014
Current
Potential
62
88
Property Type
House
Built Form
Semi-Detached
Constructed
1996-2002
+
Certificate History
1 Oct 2014
62
88
7 Aug 2014
68
89
21 Jul 2013
66
90
Total Floor Area
70 sq m
Current CO2 Emissions Level
3.5
Potential CO2 Emissions Level
1.0
CO2 per sq m per Year
50
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
43 Antonine Way, Houghton
Date
7 Aug 2014
Current
Potential
67
89
Property Type
House
Built Form
Detached
Constructed
1996-2002
+
Certificate History
7 Aug 2014
67
89
Total Floor Area
77 sq m
Current CO2 Emissions Level
3.2
Potential CO2 Emissions Level
1.0
CO2 per sq m per Year
41
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
45 Antonine Way, Houghton
Date
7 Aug 2014
Current
Potential
66
85
Property Type
House
Built Form
Detached
Constructed
1996-2002
+
Certificate History
7 Aug 2014
66
85
9 Apr 2013
66
84
Total Floor Area
94 sq m
Current CO2 Emissions Level
3.8
Potential CO2 Emissions Level
1.6
CO2 per sq m per Year
41
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
0
Address
47 Antonine Way, Houghton
Date
17 Mar 2015
Current
Potential
61
88
Property Type
House
Built Form
Detached
Constructed
1976-1982
+
Certificate History
17 Mar 2015
61
88
17 Mar 2015
61
88
17 Mar 2015
61
88
Total Floor Area
81 sq m
Current CO2 Emissions Level
4.3
Potential CO2 Emissions Level
1.2
CO2 per sq m per Year
53
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
49 Antonine Way, Houghton
Date
24 Jun 2014
Current
Potential
63
87
Property Type
House
Built Form
Detached
Constructed
1996-2002
+
Certificate History
24 Jun 2014
63
87
Total Floor Area
85 sq m
Current CO2 Emissions Level
4.0
Potential CO2 Emissions Level
1.5
CO2 per sq m per Year
46
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
1
Address
5 Antonine Way, Houghton
Date
4 Aug 2014
Current
Potential
67
88
Property Type
House
Built Form
Semi-Detached
Constructed
1996-2002
+
Certificate History
4 Aug 2014
67
88
Total Floor Area
79 sq m
Current CO2 Emissions Level
3.3
Potential CO2 Emissions Level
1.1
CO2 per sq m per Year
41
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
51 Antonine Way, Houghton
Date
13 Oct 2016
Current
Potential
60
81
Property Type
House
Built Form
Detached
Constructed
2003-2006
+
Certificate History
13 Oct 2016
60
81
Total Floor Area
118 sq m
Current CO2 Emissions Level
5.3
Potential CO2 Emissions Level
3.0
CO2 per sq m per Year
45
Mains Gas Available
Yes
Habitable Rooms
7
Number of Extensions
0
Address
53 Antonine Way, Houghton
Date
12 Oct 2014
Current
Potential
61
86
Property Type
House
Built Form
Detached
Constructed
1996-2002
+
Certificate History
12 Oct 2014
61
86
17 Jun 2014
58
84
Total Floor Area
85 sq m
Current CO2 Emissions Level
4.2
Potential CO2 Emissions Level
1.4
CO2 per sq m per Year
49
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
55 Antonine Way, Houghton
Date
12 Oct 2014
Current
Potential
61
86
Property Type
House
Built Form
Detached
Constructed
1996-2002
+
Certificate History
12 Oct 2014
61
86
Total Floor Area
85 sq m
Current CO2 Emissions Level
4.2
Potential CO2 Emissions Level
1.4
CO2 per sq m per Year
49
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
57 Antonine Way, Houghton
Date
1 Oct 2014
Current
Potential
54
82
Property Type
House
Built Form
Detached
Constructed
1991-1995
+
Certificate History
1 Oct 2014
54
82
Total Floor Area
95 sq m
Current CO2 Emissions Level
5.6
Potential CO2 Emissions Level
2.1
CO2 per sq m per Year
59
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
1
Address
59 Antonine Way, Houghton
Date
4 Aug 2014
Current
Potential
62
87
Property Type
House
Built Form
Detached
Constructed
1996-2002
+
Certificate History
4 Aug 2014
62
87
4 Aug 2014
68
86
19 Jul 2013
61
87
Total Floor Area
72 sq m
Current CO2 Emissions Level
3.6
Potential CO2 Emissions Level
1.2
CO2 per sq m per Year
50
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
6 Antonine Way, Houghton
Date
24 Jun 2014
Current
Potential
59
90
Property Type
House
Built Form
End-Terrace
Constructed
1983-1990
+
Certificate History
24 Jun 2014
59
90
Total Floor Area
61 sq m
Current CO2 Emissions Level
3.5
Potential CO2 Emissions Level
0.7
CO2 per sq m per Year
58
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
1
Address
61 Antonine Way, Houghton
Date
15 Jul 2014
Current
Potential
53
85
Property Type
House
Built Form
Detached
Constructed
1996-2002
+
Certificate History
15 Jul 2014
53
85
Total Floor Area
82 sq m
Current CO2 Emissions Level
5.2
Potential CO2 Emissions Level
1.6
CO2 per sq m per Year
63
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
1
Address
63 Antonine Way, Houghton
Date
24 Jun 2014
Current
Potential
60
82
Property Type
House
Built Form
Detached
Constructed
1983-1990
+
Certificate History
24 Jun 2014
60
82
24 Jun 2014
55
84
Total Floor Area
106 sq m
Current CO2 Emissions Level
5.1
Potential CO2 Emissions Level
2.3
CO2 per sq m per Year
48
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
1
Address
65 Antonine Way, Houghton
Date
13 Jul 2014
Current
Potential
52
86
Property Type
House
Built Form
Detached
Constructed
1996-2002
+
Certificate History
13 Jul 2014
52
86
Total Floor Area
73 sq m
Current CO2 Emissions Level
4.8
Potential CO2 Emissions Level
1.3
CO2 per sq m per Year
66
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
67 Antonine Way, Houghton
Date
7 Aug 2014
Current
Potential
69
90
Property Type
House
Built Form
Semi-Detached
Constructed
1996-2002
+
Certificate History
7 Aug 2014
69
90
Total Floor Area
67 sq m
Current CO2 Emissions Level
2.6
Potential CO2 Emissions Level
0.8
CO2 per sq m per Year
39
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
69 Antonine Way, Houghton
Date
19 Oct 2024
Current
Potential
69
84
Property Type
House
Built Form
Semi-Detached
Constructed
1991-1995
+
Certificate History
19 Oct 2024
69
84
16 Oct 2014
65
86
8 Aug 2014
66
90
2 Jun 2011
63
67
Total Floor Area
69 sq m
Current CO2 Emissions Level
2.6
Potential CO2 Emissions Level
1.4
CO2 per sq m per Year
38
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
1
Address
7 Antonine Way, Houghton
Date
15 Aug 2023
Current
Potential
67
86
Property Type
Bungalow
Built Form
End-Terrace
Constructed
1996-2002
+
Certificate History
15 Aug 2023
67
86
Total Floor Area
53 sq m
Current CO2 Emissions Level
2.4
Potential CO2 Emissions Level
1.0
CO2 per sq m per Year
45
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
8 Antonine Way, Houghton
Date
9 Jun 2015
Current
Potential
74
88
Property Type
House
Built Form
End-Terrace
Constructed
1996-2002
+
Certificate History
9 Jun 2015
74
88
4 Aug 2014
67
89
Total Floor Area
67 sq m
Current CO2 Emissions Level
2.0
Potential CO2 Emissions Level
0.9
CO2 per sq m per Year
30
Mains Gas Available
Yes
Habitable Rooms
5
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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