PROPERTY ENERGY EFFICIENCY CERTIFICATE DETAILS
William Harris Way, COLCHESTER, CO2 8WJ

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 William Harris Way, CO2 8WJ 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 William Harris Way, COLCHESTER, CO2 8WJ
Period Covered: 2008 - 31 January 2025

Address
Inspection Date
Current
Potential
Property Type
Built Form
Constructed
Address
1 William Harris Way
Date
27 Mar 2019
Current
Potential
78
78
Property Type
Flat
Built Form
End-Terrace
Constructed
2003-2006
+
Certificate History
27 Mar 2019
78
78
Total Floor Area
68 sq m
Current CO2 Emissions Level
1.5
Potential CO2 Emissions Level
1.5
CO2 per sq m per Year
22
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
1
Address
10 William Harris Way
Date
23 Aug 2015
Current
Potential
81
85
Property Type
Flat
Built Form
Mid-Terrace
Constructed
2003-2006
+
Certificate History
23 Aug 2015
81
85
Total Floor Area
69 sq m
Current CO2 Emissions Level
1.7
Potential CO2 Emissions Level
1.7
CO2 per sq m per Year
25
Mains Gas Available
No
Habitable Rooms
3
Number of Extensions
0
Address
11 WILLIAM HARRIS WAY
Date
18 Jul 2021
Current
Potential
82
82
Property Type
Flat
Built Form
Mid-Terrace
Constructed
2003-2006
+
Certificate History
18 Jul 2021
82
82
Total Floor Area
61 sq m
Current CO2 Emissions Level
1.0
Potential CO2 Emissions Level
1.0
CO2 per sq m per Year
17
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
11 William Harris Way
Date
16 Dec 2008
Current
Potential
85
87
Property Type
Flat
Built Form
Mid-Terrace
Constructed
2003-2006
+
Certificate History
16 Dec 2008
85
87
Total Floor Area
57 sq m
Current CO2 Emissions Level
1.1
Potential CO2 Emissions Level
1.1
CO2 per sq m per Year
20
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
12 William Harris Way
Date
18 Aug 2021
Current
Potential
81
86
Property Type
Flat
Built Form
Mid-Terrace
Constructed
2003-2006
+
Certificate History
18 Aug 2021
81
86
Total Floor Area
97 sq m
Current CO2 Emissions Level
2.2
Potential CO2 Emissions Level
1.9
CO2 per sq m per Year
23
Mains Gas Available
No
Habitable Rooms
3
Number of Extensions
0
Address
13 William Harris Way
Date
2 Mar 2012
Current
Potential
82
82
Property Type
Flat
Built Form
Mid-Terrace
Constructed
2003-2006
+
Certificate History
2 Mar 2012
82
82
1 Jun 2009
84
86
Total Floor Area
60 sq m
Current CO2 Emissions Level
1.0
Potential CO2 Emissions Level
1.0
CO2 per sq m per Year
17
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
14 WILLIAM HARRIS WAY
Date
22 Sep 2020
Current
Potential
78
83
Property Type
Flat
Built Form
End-Terrace
Constructed
2003-2006
+
Certificate History
22 Sep 2020
78
83
Total Floor Area
63 sq m
Current CO2 Emissions Level
1.9
Potential CO2 Emissions Level
1.9
CO2 per sq m per Year
30
Mains Gas Available
No
Habitable Rooms
3
Number of Extensions
0
Address
14 William Harris Way
Date
5 Nov 2008
Current
Potential
67
83
Property Type
Flat
Built Form
Enclosed End-Terrace
Constructed
2007 onwards
+
Certificate History
5 Nov 2008
67
83
Total Floor Area
67 sq m
Current CO2 Emissions Level
1.8
Potential CO2 Emissions Level
1.8
CO2 per sq m per Year
32
Mains Gas Available
No
Habitable Rooms
3
Number of Extensions
0
Address
15 William Harris Way
Date
1 May 2012
Current
Potential
81
83
Property Type
Flat
Built Form
End-Terrace
Constructed
2003-2006
+
Certificate History
1 May 2012
81
83
26 Aug 2009
85
88
28 Jan 2009
85
87
Total Floor Area
69 sq m
Current CO2 Emissions Level
1.2
Potential CO2 Emissions Level
1.1
CO2 per sq m per Year
18
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
16 William Harris Way
Date
15 Sep 2020
Current
Potential
78
84
Property Type
Flat
Built Form
End-Terrace
Constructed
2003-2006
+
Certificate History
15 Sep 2020
78
84
18 Mar 2010
75
84
Total Floor Area
70 sq m
Current CO2 Emissions Level
2.0
Potential CO2 Emissions Level
1.8
CO2 per sq m per Year
28
Mains Gas Available
No
Habitable Rooms
3
Number of Extensions
0
Address
17 William Harris Way
Date
10 Sep 2013
Current
Potential
81
82
Property Type
Flat
Built Form
Mid-Terrace
Constructed
2003-2006
+
Certificate History
10 Sep 2013
81
82
Total Floor Area
59 sq m
Current CO2 Emissions Level
1.1
Potential CO2 Emissions Level
1.0
CO2 per sq m per Year
18
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
18 William Harris Way
Date
23 Sep 2019
Current
Potential
81
86
Property Type
Flat
Built Form
Mid-Terrace
Constructed
2003-2006
+
Certificate History
23 Sep 2019
81
86
25 Mar 2009
79
84
Total Floor Area
57 sq m
Current CO2 Emissions Level
1.6
Potential CO2 Emissions Level
1.7
CO2 per sq m per Year
29
Mains Gas Available
No
Habitable Rooms
3
Number of Extensions
0
Address
19 William Harris Way
Date
18 Mar 2020
Current
Potential
77
78
Property Type
Flat
Built Form
Semi-Detached
Constructed
2003-2006
+
Certificate History
18 Mar 2020
77
78
26 Aug 2009
83
85
Total Floor Area
59 sq m
Current CO2 Emissions Level
1.5
Potential CO2 Emissions Level
1.4
CO2 per sq m per Year
26
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
2 William Harris Way
Date
7 Jun 2024
Current
Potential
58
77
Property Type
Flat
Built Form
Semi-Detached
Constructed
2003-2006
+
Certificate History
7 Jun 2024
58
77
Total Floor Area
59 sq m
Current CO2 Emissions Level
2.8
Potential CO2 Emissions Level
2.8
CO2 per sq m per Year
47
Mains Gas Available
No
Habitable Rooms
3
Number of Extensions
0
Address
20 William Harris Way
Date
1 Jun 2010
Current
Potential
65
78
Property Type
Flat
Built Form
Semi-Detached
Constructed
2003-2006
+
Certificate History
1 Jun 2010
65
78
Total Floor Area
61 sq m
Current CO2 Emissions Level
2.2
Potential CO2 Emissions Level
2.3
CO2 per sq m per Year
37
Mains Gas Available
No
Habitable Rooms
3
Number of Extensions
0
Address
21 William Harris Way
Date
3 Aug 2020
Current
Potential
78
80
Property Type
Flat
Built Form
Mid-Terrace
Constructed
2003-2006
+
Certificate History
3 Aug 2020
78
80
26 Aug 2009
83
84
31 Jan 2009
81
83
Total Floor Area
70 sq m
Current CO2 Emissions Level
1.6
Potential CO2 Emissions Level
1.5
CO2 per sq m per Year
24
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
23 William Harris Way
Date
1 Sep 2019
Current
Potential
79
79
Property Type
Flat
Built Form
Mid-Terrace
Constructed
2003-2006
+
Certificate History
1 Sep 2019
79
79
22 Sep 2009
84
86
Total Floor Area
54 sq m
Current CO2 Emissions Level
1.3
Potential CO2 Emissions Level
1.3
CO2 per sq m per Year
23
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
24 WILLIAM HARRIS WAY, COLCHESTER
Date
3 Sep 2020
Current
Potential
74
81
Property Type
Flat
Built Form
Mid-Terrace
Constructed
2003-2006
+
Certificate History
3 Sep 2020
74
81
Total Floor Area
63 sq m
Current CO2 Emissions Level
2.2
Potential CO2 Emissions Level
2.1
CO2 per sq m per Year
35
Mains Gas Available
No
Habitable Rooms
3
Number of Extensions
0
Address
25 William Harris Way
Date
9 Mar 2011
Current
Potential
80
82
Property Type
Flat
Built Form
Semi-Detached
Constructed
2003-2006
+
Certificate History
9 Mar 2011
80
82
Total Floor Area
53 sq m
Current CO2 Emissions Level
1.5
Potential CO2 Emissions Level
1.5
CO2 per sq m per Year
29
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
25 WILLIAM HARRIS WAY, COLCHESTER
Date
25 Feb 2021
Current
Potential
76
76
Property Type
Flat
Built Form
End-Terrace
Constructed
2003-2006
+
Certificate History
25 Feb 2021
76
76
Total Floor Area
53 sq m
Current CO2 Emissions Level
1.5
Potential CO2 Emissions Level
1.5
CO2 per sq m per Year
29
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
26 William Harris Way
Date
7 Mar 2014
Current
Potential
74
88
Property Type
House
Built Form
Mid-Terrace
Constructed
2003-2006
+
Certificate History
7 Mar 2014
74
88
Total Floor Area
79 sq m
Current CO2 Emissions Level
2.2
Potential CO2 Emissions Level
1.0
CO2 per sq m per Year
28
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
1
Address
27 William Harris Way
Date
12 Jun 2016
Current
Potential
77
87
Property Type
House
Built Form
End-Terrace
Constructed
2007 onwards
+
Certificate History
12 Jun 2016
77
87
Total Floor Area
135 sq m
Current CO2 Emissions Level
3.1
Potential CO2 Emissions Level
1.8
CO2 per sq m per Year
23
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
0
Address
28 William Harris Way
Date
20 May 2013
Current
Potential
73
80
Property Type
Flat
Built Form
End-Terrace
Constructed
2007 onwards
+
Certificate History
20 May 2013
73
80
19 Oct 2008
72
75
Total Floor Area
59 sq m
Current CO2 Emissions Level
2.5
Potential CO2 Emissions Level
2.6
CO2 per sq m per Year
43
Mains Gas Available
No
Habitable Rooms
2
Number of Extensions
0
Address
29 William Harris Way
Date
9 Nov 2009
Current
Potential
81
83
Property Type
House
Built Form
Mid-Terrace
Constructed
N/A
+
Certificate History
9 Nov 2009
81
83
Total Floor Area
90 sq m
Current CO2 Emissions Level
2.6
Potential CO2 Emissions Level
2.5
CO2 per sq m per Year
19
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
0
Address
3 William Harris Way
Date
11 Jan 2012
Current
Potential
81
81
Property Type
Flat
Built Form
Detached
Constructed
2003-2006
+
Certificate History
11 Jan 2012
81
81
19 Jan 2009
83
84
Total Floor Area
69 sq m
Current CO2 Emissions Level
1.3
Potential CO2 Emissions Level
1.3
CO2 per sq m per Year
20
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
31 William Harris Way
Date
7 Aug 2019
Current
Potential
77
86
Property Type
House
Built Form
End-Terrace
Constructed
2003-2006
+
Certificate History
7 Aug 2019
77
86
1 Jul 2009
81
82
Total Floor Area
127 sq m
Current CO2 Emissions Level
3.1
Potential CO2 Emissions Level
1.9
CO2 per sq m per Year
24
Mains Gas Available
Yes
Habitable Rooms
7
Number of Extensions
0
Address
32 William Harris Way
Date
26 Sep 2023
Current
Potential
79
85
Property Type
Flat
Built Form
Semi-Detached
Constructed
2003-2006
+
Certificate History
26 Sep 2023
79
85
8 Jul 2009
75
76
Total Floor Area
48 sq m
Current CO2 Emissions Level
1.5
Potential CO2 Emissions Level
1.6
CO2 per sq m per Year
32
Mains Gas Available
No
Habitable Rooms
3
Number of Extensions
0
Address
33 William Harris Way
Date
30 Jun 2019
Current
Potential
81
87
Property Type
House
Built Form
End-Terrace
Constructed
2007 onwards
+
Certificate History
30 Jun 2019
81
87
30 Mar 2009
77
80
Total Floor Area
178 sq m
Current CO2 Emissions Level
3.2
Potential CO2 Emissions Level
2.2
CO2 per sq m per Year
18
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
34 William Harris Way
Date
5 Nov 2014
Current
Potential
75
85
Property Type
Flat
Built Form
Mid-Terrace
Constructed
2003-2006
+
Certificate History
5 Nov 2014
75
85
Total Floor Area
75 sq m
Current CO2 Emissions Level
2.0
Potential CO2 Emissions Level
2.1
CO2 per sq m per Year
27
Mains Gas Available
No
Habitable Rooms
3
Number of Extensions
0
Address
35 William Harris Way
Date
3 Sep 2014
Current
Potential
75
77
Property Type
Flat
Built Form
Mid-Terrace
Constructed
2003-2006
+
Certificate History
3 Sep 2014
75
77
Total Floor Area
51 sq m
Current CO2 Emissions Level
1.5
Potential CO2 Emissions Level
1.3
CO2 per sq m per Year
29
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
36 William Harris Way
Date
30 Apr 2009
Current
Potential
63
77
Property Type
Flat
Built Form
Detached
Constructed
2007 onwards
+
Certificate History
30 Apr 2009
63
77
Total Floor Area
70 sq m
Current CO2 Emissions Level
2.5
Potential CO2 Emissions Level
2.6
CO2 per sq m per Year
36
Mains Gas Available
No
Habitable Rooms
3
Number of Extensions
0
Address
37 William Harris Way
Date
15 Nov 2012
Current
Potential
80
81
Property Type
Flat
Built Form
Mid-Terrace
Constructed
2007 onwards
+
Certificate History
15 Nov 2012
80
81
Total Floor Area
61 sq m
Current CO2 Emissions Level
1.2
Potential CO2 Emissions Level
1.1
CO2 per sq m per Year
20
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
38 WILLIAM HARRIS WAY, COLCHESTER
Date
18 Dec 2020
Current
Potential
68
80
Property Type
Flat
Built Form
End-Terrace
Constructed
2003-2006
+
Certificate History
18 Dec 2020
68
80
Total Floor Area
64 sq m
Current CO2 Emissions Level
2.7
Potential CO2 Emissions Level
2.4
CO2 per sq m per Year
43
Mains Gas Available
No
Habitable Rooms
3
Number of Extensions
0
Address
39 William Harris Way
Date
30 Jun 2019
Current
Potential
81
81
Property Type
Flat
Built Form
End-Terrace
Constructed
2007 onwards
+
Certificate History
30 Jun 2019
81
81
28 Apr 2009
85
87
Total Floor Area
74 sq m
Current CO2 Emissions Level
1.3
Potential CO2 Emissions Level
1.3
CO2 per sq m per Year
18
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
4 William Harris Way
Date
13 Dec 2012
Current
Potential
75
83
Property Type
Flat
Built Form
Mid-Terrace
Constructed
2003-2006
+
Certificate History
13 Dec 2012
75
83
Total Floor Area
68 sq m
Current CO2 Emissions Level
2.4
Potential CO2 Emissions Level
2.4
CO2 per sq m per Year
35
Mains Gas Available
No
Habitable Rooms
3
Number of Extensions
0
Address
40 William Harris Way
Date
2 Dec 2009
Current
Potential
72
82
Property Type
Flat
Built Form
Enclosed Mid-Terrace
Constructed
2007 onwards
+
Certificate History
2 Dec 2009
72
82
Total Floor Area
63 sq m
Current CO2 Emissions Level
1.9
Potential CO2 Emissions Level
1.9
CO2 per sq m per Year
34
Mains Gas Available
No
Habitable Rooms
3
Number of Extensions
0
Address
41 William Harris Way
Date
21 Nov 2022
Current
Potential
83
83
Property Type
Flat
Built Form
Semi-Detached
Constructed
2007-2011
+
Certificate History
21 Nov 2022
83
83
22 Dec 2009
83
87
13 Aug 2009
85
87
7 Mar 2009
85
87
Total Floor Area
71 sq m
Current CO2 Emissions Level
1.2
Potential CO2 Emissions Level
1.2
CO2 per sq m per Year
16
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
42 William Harris Way
Date
13 Feb 2024
Current
Potential
75
85
Property Type
Flat
Built Form
Mid-Terrace
Constructed
2003-2006
+
Certificate History
13 Feb 2024
75
85
20 Nov 2009
77
84
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
No
Habitable Rooms
3
Number of Extensions
0
Address
43 William Harris Way
Date
28 Mar 2023
Current
Potential
80
82
Property Type
Flat
Built Form
Mid-Terrace
Constructed
2007-2011
+
Certificate History
28 Mar 2023
80
82
6 Mar 2022
81
81
20 Dec 2010
84
85
Total Floor Area
84 sq m
Current CO2 Emissions Level
1.7
Potential CO2 Emissions Level
1.5
CO2 per sq m per Year
20
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
44 William Harris Way
Date
20 Sep 2017
Current
Potential
65
81
Property Type
Flat
Built Form
End-Terrace
Constructed
2003-2006
+
Certificate History
20 Sep 2017
65
81
Total Floor Area
58 sq m
Current CO2 Emissions Level
2.3
Potential CO2 Emissions Level
2.3
CO2 per sq m per Year
39
Mains Gas Available
No
Habitable Rooms
3
Number of Extensions
0
Address
45 William Harris Way
Date
31 Jul 2014
Current
Potential
81
81
Property Type
Flat
Built Form
Semi-Detached
Constructed
2007 onwards
+
Certificate History
31 Jul 2014
81
81
14 Nov 2010
85
85
Total Floor Area
93 sq m
Current CO2 Emissions Level
1.7
Potential CO2 Emissions Level
1.7
CO2 per sq m per Year
18
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
46 William Harris Way
Date
18 Sep 2019
Current
Potential
71
79
Property Type
Maisonette
Built Form
Mid-Terrace
Constructed
2003-2006
+
Certificate History
18 Sep 2019
71
79
11 May 2009
69
71
Total Floor Area
55 sq m
Current CO2 Emissions Level
2.3
Potential CO2 Emissions Level
1.3
CO2 per sq m per Year
41
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
47 William Harris Way
Date
13 Oct 2010
Current
Potential
85
85
Property Type
Flat
Built Form
Detached
Constructed
2007 onwards
+
Certificate History
13 Oct 2010
85
85
26 Nov 2008
82
83
Total Floor Area
62 sq m
Current CO2 Emissions Level
1.3
Potential CO2 Emissions Level
1.3
CO2 per sq m per Year
21
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
48 William Harris Way
Date
5 Oct 2015
Current
Potential
80
86
Property Type
House
Built Form
Semi-Detached
Constructed
2007 onwards
+
Certificate History
5 Oct 2015
80
86
Total Floor Area
202 sq m
Current CO2 Emissions Level
3.9
Potential CO2 Emissions Level
2.8
CO2 per sq m per Year
19
Mains Gas Available
Yes
Habitable Rooms
7
Number of Extensions
0
Address
5 William Harris Way
Date
2 Oct 2019
Current
Potential
80
80
Property Type
Flat
Built Form
Mid-Terrace
Constructed
2003-2006
+
Certificate History
2 Oct 2019
80
80
26 Aug 2009
83
85
13 Feb 2009
83
85
Total Floor Area
58 sq m
Current CO2 Emissions Level
1.2
Potential CO2 Emissions Level
1.2
CO2 per sq m per Year
22
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
52 William Harris Way
Date
17 Jul 2011
Current
Potential
78
78
Property Type
House
Built Form
Semi-Detached
Constructed
2007 onwards
+
Certificate History
17 Jul 2011
78
78
Total Floor Area
94 sq m
Current CO2 Emissions Level
2.2
Potential CO2 Emissions Level
2.1
CO2 per sq m per Year
23
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
55 William Harris Way
Date
7 Nov 2018
Current
Potential
75
76
Property Type
Flat
Built Form
Detached
Constructed
2007 onwards
+
Certificate History
7 Nov 2018
75
76
5 Oct 2008
79
80
Total Floor Area
53 sq m
Current CO2 Emissions Level
1.6
Potential CO2 Emissions Level
1.6
CO2 per sq m per Year
30
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
57 William Harris Way
Date
28 Sep 2016
Current
Potential
76
77
Property Type
Flat
Built Form
Semi-Detached
Constructed
2007 onwards
+
Certificate History
28 Sep 2016
76
77
6 Mar 2012
81
82
Total Floor Area
63 sq m
Current CO2 Emissions Level
1.7
Potential CO2 Emissions Level
1.6
CO2 per sq m per Year
27
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
59 William Harris Way
Date
30 Jun 2019
Current
Potential
78
80
Property Type
Flat
Built Form
End-Terrace
Constructed
2007 onwards
+
Certificate History
30 Jun 2019
78
80
9 Jun 2009
82
84
Total Floor Area
77 sq m
Current CO2 Emissions Level
1.8
Potential CO2 Emissions Level
1.6
CO2 per sq m per Year
23
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
6 William Harris Way
Date
19 Jun 2019
Current
Potential
71
84
Property Type
Flat
Built Form
Enclosed Mid-Terrace
Constructed
2003-2006
+
Certificate History
19 Jun 2019
71
84
12 Feb 2009
69
80
Total Floor Area
15 sq m
Current CO2 Emissions Level
1.1
Potential CO2 Emissions Level
1.1
CO2 per sq m per Year
76
Mains Gas Available
No
Habitable Rooms
3
Number of Extensions
0
Address
61 WILLIAM HARRIS WAY
Date
6 Jul 2021
Current
Potential
76
78
Property Type
Flat
Built Form
End-Terrace
Constructed
2003-2006
+
Certificate History
6 Jul 2021
76
78
Total Floor Area
43 sq m
Current CO2 Emissions Level
1.2
Potential CO2 Emissions Level
1.1
CO2 per sq m per Year
28
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
61 William Harris Way
Date
13 Jun 2009
Current
Potential
84
84
Property Type
Flat
Built Form
Semi-Detached
Constructed
2007 onwards
+
Certificate History
13 Jun 2009
84
84
Total Floor Area
96 sq m
Current CO2 Emissions Level
1.8
Potential CO2 Emissions Level
1.8
CO2 per sq m per Year
19
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
65 William Harris Way
Date
8 Nov 2011
Current
Potential
80
80
Property Type
Flat
Built Form
Detached
Constructed
2007 onwards
+
Certificate History
8 Nov 2011
80
80
30 Mar 2010
87
87
Total Floor Area
56 sq m
Current CO2 Emissions Level
1.2
Potential CO2 Emissions Level
1.2
CO2 per sq m per Year
21
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
67 William Harris Way
Date
10 Nov 2022
Current
Potential
79
79
Property Type
Flat
Built Form
End-Terrace
Constructed
2007-2011
+
Certificate History
10 Nov 2022
79
79
Total Floor Area
57 sq m
Current CO2 Emissions Level
1.3
Potential CO2 Emissions Level
1.3
CO2 per sq m per Year
22
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
69 William Harris Way
Date
28 May 2015
Current
Potential
76
85
Property Type
House
Built Form
Detached
Constructed
2007 onwards
+
Certificate History
28 May 2015
76
85
Total Floor Area
139 sq m
Current CO2 Emissions Level
3.4
Potential CO2 Emissions Level
2.2
CO2 per sq m per Year
24
Mains Gas Available
Yes
Habitable Rooms
7
Number of Extensions
0
Address
7 William Harris Way
Date
7 Jul 2019
Current
Potential
82
82
Property Type
Flat
Built Form
Mid-Terrace
Constructed
2003-2006
+
Certificate History
7 Jul 2019
82
82
28 Jul 2009
85
87
Total Floor Area
63 sq m
Current CO2 Emissions Level
1.1
Potential CO2 Emissions Level
1.1
CO2 per sq m per Year
18
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
71 William Harris Way
Date
11 May 2009
Current
Potential
79
81
Property Type
House
Built Form
Detached
Constructed
2007 onwards
+
Certificate History
11 May 2009
79
81
Total Floor Area
110 sq m
Current CO2 Emissions Level
3.1
Potential CO2 Emissions Level
2.9
CO2 per sq m per Year
22
Mains Gas Available
Yes
Habitable Rooms
7
Number of Extensions
0
Address
71 WILLIAM HARRIS WAY, COLCHESTER
Date
6 Apr 2021
Current
Potential
79
87
Property Type
House
Built Form
Detached
Constructed
2007-2011
+
Certificate History
6 Apr 2021
79
87
Total Floor Area
126 sq m
Current CO2 Emissions Level
2.6
Potential CO2 Emissions Level
1.6
CO2 per sq m per Year
21
Mains Gas Available
Yes
Habitable Rooms
7
Number of Extensions
0
Address
8 William Harris Way
Date
26 Sep 2019
Current
Potential
79
85
Property Type
Flat
Built Form
Mid-Terrace
Constructed
2003-2006
+
Certificate History
26 Sep 2019
79
85
24 Sep 2009
74
76
Total Floor Area
60 sq m
Current CO2 Emissions Level
1.7
Potential CO2 Emissions Level
1.6
CO2 per sq m per Year
29
Mains Gas Available
No
Habitable Rooms
3
Number of Extensions
0
Address
9 William Harris Way
Date
19 Feb 2020
Current
Potential
82
83
Property Type
Flat
Built Form
Enclosed End-Terrace
Constructed
2003-2006
+
Certificate History
19 Feb 2020
82
83
8 Feb 2010
86
88
Total Floor Area
69 sq m
Current CO2 Emissions Level
1.2
Potential CO2 Emissions Level
1.1
CO2 per sq m per Year
17
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.

Contains public sector information licensed under the Open Government Licence v3.0.
Contains Royal Mail data © Royal Mail copyright and Database right 2025.