PROPERTY ENERGY EFFICIENCY CERTIFICATE DETAILS
William Porter Close, CHELMSFORD, CM1 6AN
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 Porter Close, CM1 6AN 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 Porter Close, CHELMSFORD, CM1 6AN
Period Covered:
2008 - 31 January 2025
Address
Inspection Date
Current
Potential
Property Type
Built Form
Constructed
Address
1 William Porter Close
Date
2 Jul 2015
Current
Potential
85
93
Property Type
House
Built Form
End-Terrace
Constructed
N/A
Certificate History
2 Jul 2015
85
93
Total Floor Area
154 sq m
Current CO2 Emissions Level
2.1
Potential CO2 Emissions Level
0.9
CO2 per sq m per Year
14
Mains Gas Available
No
Habitable Rooms
0
Number of Extensions
0
Address
10 William Porter Close
Date
26 Aug 2015
Current
Potential
85
93
Property Type
House
Built Form
Mid-Terrace
Constructed
N/A
Certificate History
26 Aug 2015
85
93
Total Floor Area
154 sq m
Current CO2 Emissions Level
2.1
Potential CO2 Emissions Level
0.9
CO2 per sq m per Year
14
Mains Gas Available
No
Habitable Rooms
0
Number of Extensions
0
Address
11 William Porter Close
Date
26 Aug 2015
Current
Potential
86
93
Property Type
House
Built Form
Detached
Constructed
N/A
Certificate History
26 Aug 2015
86
93
Total Floor Area
167 sq m
Current CO2 Emissions Level
2.1
Potential CO2 Emissions Level
0.8
CO2 per sq m per Year
12
Mains Gas Available
No
Habitable Rooms
0
Number of Extensions
0
Address
12 William Porter Close
Date
3 Sep 2015
Current
Potential
85
93
Property Type
House
Built Form
Mid-Terrace
Constructed
N/A
Certificate History
3 Sep 2015
85
93
Total Floor Area
154 sq m
Current CO2 Emissions Level
2.1
Potential CO2 Emissions Level
0.8
CO2 per sq m per Year
14
Mains Gas Available
No
Habitable Rooms
0
Number of Extensions
0
Address
13 William Porter Close
Date
9 Aug 2015
Current
Potential
86
93
Property Type
House
Built Form
Detached
Constructed
N/A
Certificate History
9 Aug 2015
86
93
Total Floor Area
195 sq m
Current CO2 Emissions Level
2.1
Potential CO2 Emissions Level
0.9
CO2 per sq m per Year
11
Mains Gas Available
No
Habitable Rooms
0
Number of Extensions
0
Address
14 William Porter Close
Date
3 Sep 2015
Current
Potential
85
93
Property Type
House
Built Form
Mid-Terrace
Constructed
N/A
Certificate History
3 Sep 2015
85
93
Total Floor Area
154 sq m
Current CO2 Emissions Level
2.1
Potential CO2 Emissions Level
0.8
CO2 per sq m per Year
13
Mains Gas Available
No
Habitable Rooms
0
Number of Extensions
0
Address
15 William Porter Close
Date
3 Sep 2015
Current
Potential
88
92
Property Type
House
Built Form
Detached
Constructed
N/A
Certificate History
3 Sep 2015
88
92
Total Floor Area
238 sq m
Current CO2 Emissions Level
2.6
Potential CO2 Emissions Level
1.6
CO2 per sq m per Year
11
Mains Gas Available
No
Habitable Rooms
0
Number of Extensions
0
Address
16 William Porter Close
Date
3 Sep 2015
Current
Potential
85
93
Property Type
House
Built Form
Mid-Terrace
Constructed
N/A
Certificate History
3 Sep 2015
85
93
Total Floor Area
154 sq m
Current CO2 Emissions Level
2.1
Potential CO2 Emissions Level
0.9
CO2 per sq m per Year
14
Mains Gas Available
No
Habitable Rooms
0
Number of Extensions
0
Address
17 William Porter Close
Date
5 Apr 2016
Current
Potential
87
92
Property Type
House
Built Form
Detached
Constructed
N/A
Certificate History
5 Apr 2016
87
92
Total Floor Area
238 sq m
Current CO2 Emissions Level
2.5
Potential CO2 Emissions Level
1.5
CO2 per sq m per Year
10
Mains Gas Available
No
Habitable Rooms
0
Number of Extensions
0
Address
18 William Porter Close
Date
3 Sep 2015
Current
Potential
85
93
Property Type
House
Built Form
End-Terrace
Constructed
N/A
Certificate History
3 Sep 2015
85
93
Total Floor Area
154 sq m
Current CO2 Emissions Level
2.0
Potential CO2 Emissions Level
0.8
CO2 per sq m per Year
13
Mains Gas Available
No
Habitable Rooms
0
Number of Extensions
0
Address
19 William Porter Close
Date
5 Apr 2016
Current
Potential
87
93
Property Type
House
Built Form
Detached
Constructed
N/A
Certificate History
5 Apr 2016
87
93
Total Floor Area
195 sq m
Current CO2 Emissions Level
2.1
Potential CO2 Emissions Level
0.8
CO2 per sq m per Year
11
Mains Gas Available
No
Habitable Rooms
0
Number of Extensions
0
Address
2 William Porter Close
Date
9 Aug 2015
Current
Potential
84
92
Property Type
House
Built Form
Semi-Detached
Constructed
N/A
Certificate History
9 Aug 2015
84
92
Total Floor Area
154 sq m
Current CO2 Emissions Level
2.3
Potential CO2 Emissions Level
1.0
CO2 per sq m per Year
15
Mains Gas Available
No
Habitable Rooms
0
Number of Extensions
0
Address
20 William Porter Close
Date
12 Oct 2015
Current
Potential
84
94
Property Type
House
Built Form
Mid-Terrace
Constructed
N/A
Certificate History
12 Oct 2015
84
94
Total Floor Area
120 sq m
Current CO2 Emissions Level
1.7
Potential CO2 Emissions Level
0.5
CO2 per sq m per Year
14
Mains Gas Available
No
Habitable Rooms
0
Number of Extensions
0
Address
21 William Porter Close
Date
5 Apr 2016
Current
Potential
86
93
Property Type
House
Built Form
Detached
Constructed
N/A
Certificate History
5 Apr 2016
86
93
Total Floor Area
174 sq m
Current CO2 Emissions Level
2.2
Potential CO2 Emissions Level
1.0
CO2 per sq m per Year
13
Mains Gas Available
No
Habitable Rooms
0
Number of Extensions
0
Address
22 William Porter Close
Date
30 Oct 2015
Current
Potential
85
94
Property Type
House
Built Form
Mid-Terrace
Constructed
N/A
Certificate History
30 Oct 2015
85
94
Total Floor Area
127 sq m
Current CO2 Emissions Level
1.7
Potential CO2 Emissions Level
0.5
CO2 per sq m per Year
14
Mains Gas Available
No
Habitable Rooms
0
Number of Extensions
0
Address
23 William Porter Close
Date
12 Oct 2015
Current
Potential
86
94
Property Type
House
Built Form
Detached
Constructed
N/A
Certificate History
12 Oct 2015
86
94
Total Floor Area
167 sq m
Current CO2 Emissions Level
2.0
Potential CO2 Emissions Level
0.8
CO2 per sq m per Year
12
Mains Gas Available
No
Habitable Rooms
0
Number of Extensions
0
Address
24 William Porter Close
Date
13 Nov 2015
Current
Potential
85
94
Property Type
House
Built Form
Mid-Terrace
Constructed
N/A
Certificate History
13 Nov 2015
85
94
Total Floor Area
127 sq m
Current CO2 Emissions Level
1.7
Potential CO2 Emissions Level
0.5
CO2 per sq m per Year
14
Mains Gas Available
No
Habitable Rooms
0
Number of Extensions
0
Address
25 William Porter Close
Date
1 Oct 2015
Current
Potential
85
96
Property Type
House
Built Form
Semi-Detached
Constructed
N/A
Certificate History
1 Oct 2015
85
96
Total Floor Area
98 sq m
Current CO2 Emissions Level
1.3
Potential CO2 Emissions Level
0.1
CO2 per sq m per Year
13
Mains Gas Available
No
Habitable Rooms
0
Number of Extensions
0
Address
26 William Porter Close
Date
30 Oct 2015
Current
Potential
84
94
Property Type
House
Built Form
Mid-Terrace
Constructed
N/A
Certificate History
30 Oct 2015
84
94
Total Floor Area
120 sq m
Current CO2 Emissions Level
1.7
Potential CO2 Emissions Level
0.5
CO2 per sq m per Year
14
Mains Gas Available
No
Habitable Rooms
0
Number of Extensions
0
Address
27 William Porter Close
Date
1 Oct 2015
Current
Potential
85
96
Property Type
House
Built Form
Semi-Detached
Constructed
N/A
Certificate History
1 Oct 2015
85
96
Total Floor Area
98 sq m
Current CO2 Emissions Level
1.3
Potential CO2 Emissions Level
0.1
CO2 per sq m per Year
13
Mains Gas Available
No
Habitable Rooms
0
Number of Extensions
0
Address
28 William Porter Close
Date
3 Dec 2015
Current
Potential
86
94
Property Type
House
Built Form
Detached
Constructed
N/A
Certificate History
3 Dec 2015
86
94
Total Floor Area
143 sq m
Current CO2 Emissions Level
1.8
Potential CO2 Emissions Level
0.5
CO2 per sq m per Year
13
Mains Gas Available
No
Habitable Rooms
0
Number of Extensions
0
Address
29 William Porter Close
Date
1 Oct 2015
Current
Potential
85
96
Property Type
House
Built Form
Semi-Detached
Constructed
N/A
Certificate History
1 Oct 2015
85
96
Total Floor Area
98 sq m
Current CO2 Emissions Level
1.3
Potential CO2 Emissions Level
0.1
CO2 per sq m per Year
13
Mains Gas Available
No
Habitable Rooms
0
Number of Extensions
0
Address
3 William Porter Close
Date
2 Jul 2015
Current
Potential
85
93
Property Type
House
Built Form
Mid-Terrace
Constructed
N/A
Certificate History
2 Jul 2015
85
93
Total Floor Area
154 sq m
Current CO2 Emissions Level
2.1
Potential CO2 Emissions Level
0.8
CO2 per sq m per Year
13
Mains Gas Available
No
Habitable Rooms
0
Number of Extensions
0
Address
30 William Porter Close
Date
3 Dec 2015
Current
Potential
83
92
Property Type
House
Built Form
Detached
Constructed
N/A
Certificate History
3 Dec 2015
83
92
Total Floor Area
120 sq m
Current CO2 Emissions Level
1.9
Potential CO2 Emissions Level
0.7
CO2 per sq m per Year
16
Mains Gas Available
No
Habitable Rooms
0
Number of Extensions
0
Address
31 William Porter Close
Date
1 Oct 2015
Current
Potential
85
96
Property Type
House
Built Form
Semi-Detached
Constructed
N/A
Certificate History
1 Oct 2015
85
96
Total Floor Area
98 sq m
Current CO2 Emissions Level
1.3
Potential CO2 Emissions Level
0.1
CO2 per sq m per Year
13
Mains Gas Available
No
Habitable Rooms
0
Number of Extensions
0
Address
32 William Porter Close
Date
3 Dec 2015
Current
Potential
83
93
Property Type
House
Built Form
Detached
Constructed
N/A
Certificate History
3 Dec 2015
83
93
Total Floor Area
108 sq m
Current CO2 Emissions Level
1.7
Potential CO2 Emissions Level
0.5
CO2 per sq m per Year
16
Mains Gas Available
No
Habitable Rooms
0
Number of Extensions
0
Address
33 William Porter Close
Date
26 Mar 2016
Current
Potential
86
93
Property Type
House
Built Form
Detached
Constructed
N/A
Certificate History
26 Mar 2016
86
93
Total Floor Area
195 sq m
Current CO2 Emissions Level
2.1
Potential CO2 Emissions Level
0.9
CO2 per sq m per Year
11
Mains Gas Available
No
Habitable Rooms
0
Number of Extensions
0
Address
34 William Porter Close
Date
9 Dec 2015
Current
Potential
83
92
Property Type
House
Built Form
Detached
Constructed
N/A
Certificate History
9 Dec 2015
83
92
Total Floor Area
120 sq m
Current CO2 Emissions Level
2.0
Potential CO2 Emissions Level
0.7
CO2 per sq m per Year
16
Mains Gas Available
No
Habitable Rooms
0
Number of Extensions
0
Address
35 William Porter Close
Date
26 Mar 2016
Current
Potential
87
92
Property Type
House
Built Form
Detached
Constructed
N/A
Certificate History
26 Mar 2016
87
92
Total Floor Area
238 sq m
Current CO2 Emissions Level
2.5
Potential CO2 Emissions Level
1.5
CO2 per sq m per Year
10
Mains Gas Available
No
Habitable Rooms
0
Number of Extensions
0
Address
36 William Porter Close
Date
3 Dec 2015
Current
Potential
86
94
Property Type
House
Built Form
Detached
Constructed
N/A
Certificate History
3 Dec 2015
86
94
Total Floor Area
167 sq m
Current CO2 Emissions Level
2.0
Potential CO2 Emissions Level
0.8
CO2 per sq m per Year
12
Mains Gas Available
No
Habitable Rooms
0
Number of Extensions
0
Address
38 William Porter Close
Date
15 Jan 2016
Current
Potential
86
93
Property Type
House
Built Form
Detached
Constructed
N/A
Certificate History
15 Jan 2016
86
93
Total Floor Area
195 sq m
Current CO2 Emissions Level
2.1
Potential CO2 Emissions Level
0.9
CO2 per sq m per Year
11
Mains Gas Available
No
Habitable Rooms
0
Number of Extensions
0
Address
4 William Porter Close
Date
9 Aug 2015
Current
Potential
85
93
Property Type
House
Built Form
Semi-Detached
Constructed
N/A
Certificate History
9 Aug 2015
85
93
Total Floor Area
154 sq m
Current CO2 Emissions Level
2.1
Potential CO2 Emissions Level
0.9
CO2 per sq m per Year
14
Mains Gas Available
No
Habitable Rooms
0
Number of Extensions
0
Address
40 William Porter Close
Date
1 Feb 2016
Current
Potential
86
96
Property Type
House
Built Form
Semi-Detached
Constructed
N/A
Certificate History
1 Feb 2016
86
96
Total Floor Area
98 sq m
Current CO2 Emissions Level
1.2
Potential CO2 Emissions Level
0.0
CO2 per sq m per Year
12
Mains Gas Available
No
Habitable Rooms
0
Number of Extensions
0
Address
42 William Porter Close
Date
1 Feb 2016
Current
Potential
85
97
Property Type
House
Built Form
Mid-Terrace
Constructed
N/A
Certificate History
1 Feb 2016
85
97
Total Floor Area
88 sq m
Current CO2 Emissions Level
1.1
Potential CO2 Emissions Level
0.0
CO2 per sq m per Year
13
Mains Gas Available
No
Habitable Rooms
0
Number of Extensions
0
Address
44 William Porter Close
Date
19 Jan 2016
Current
Potential
84
95
Property Type
House
Built Form
End-Terrace
Constructed
N/A
Certificate History
19 Jan 2016
84
95
Total Floor Area
89 sq m
Current CO2 Emissions Level
1.3
Potential CO2 Emissions Level
0.1
CO2 per sq m per Year
14
Mains Gas Available
No
Habitable Rooms
0
Number of Extensions
0
Address
46 William Porter Close
Date
15 Jan 2016
Current
Potential
85
94
Property Type
House
Built Form
End-Terrace
Constructed
N/A
Certificate History
15 Jan 2016
85
94
Total Floor Area
120 sq m
Current CO2 Emissions Level
1.7
Potential CO2 Emissions Level
0.4
CO2 per sq m per Year
14
Mains Gas Available
No
Habitable Rooms
0
Number of Extensions
0
Address
48 William Porter Close
Date
15 Jan 2016
Current
Potential
86
97
Property Type
House
Built Form
Mid-Terrace
Constructed
N/A
Certificate History
15 Jan 2016
86
97
Total Floor Area
98 sq m
Current CO2 Emissions Level
1.1
Potential CO2 Emissions Level
0.0
CO2 per sq m per Year
12
Mains Gas Available
No
Habitable Rooms
0
Number of Extensions
0
Address
5 William Porter Close
Date
2 Jul 2015
Current
Potential
85
93
Property Type
House
Built Form
Mid-Terrace
Constructed
N/A
Certificate History
2 Jul 2015
85
93
Total Floor Area
154 sq m
Current CO2 Emissions Level
2.0
Potential CO2 Emissions Level
0.8
CO2 per sq m per Year
13
Mains Gas Available
No
Habitable Rooms
0
Number of Extensions
0
Address
50 William Porter Close
Date
15 Jan 2016
Current
Potential
85
94
Property Type
House
Built Form
End-Terrace
Constructed
N/A
Certificate History
15 Jan 2016
85
94
Total Floor Area
120 sq m
Current CO2 Emissions Level
1.7
Potential CO2 Emissions Level
0.4
CO2 per sq m per Year
14
Mains Gas Available
No
Habitable Rooms
0
Number of Extensions
0
Address
52 William Porter Close
Date
15 Feb 2016
Current
Potential
86
96
Property Type
House
Built Form
Semi-Detached
Constructed
N/A
Certificate History
15 Feb 2016
86
96
Total Floor Area
98 sq m
Current CO2 Emissions Level
1.2
Potential CO2 Emissions Level
0.0
CO2 per sq m per Year
12
Mains Gas Available
No
Habitable Rooms
0
Number of Extensions
0
Address
54 William Porter Close
Date
15 Feb 2016
Current
Potential
86
96
Property Type
House
Built Form
Semi-Detached
Constructed
N/A
Certificate History
15 Feb 2016
86
96
Total Floor Area
98 sq m
Current CO2 Emissions Level
1.2
Potential CO2 Emissions Level
0.0
CO2 per sq m per Year
12
Mains Gas Available
No
Habitable Rooms
0
Number of Extensions
0
Address
56 William Porter Close
Date
15 Feb 2016
Current
Potential
86
94
Property Type
House
Built Form
Detached
Constructed
N/A
Certificate History
15 Feb 2016
86
94
Total Floor Area
143 sq m
Current CO2 Emissions Level
1.8
Potential CO2 Emissions Level
0.6
CO2 per sq m per Year
13
Mains Gas Available
No
Habitable Rooms
0
Number of Extensions
0
Address
58 William Porter Close
Date
14 Mar 2016
Current
Potential
86
94
Property Type
House
Built Form
Detached
Constructed
N/A
Certificate History
14 Mar 2016
86
94
Total Floor Area
167 sq m
Current CO2 Emissions Level
2.0
Potential CO2 Emissions Level
0.8
CO2 per sq m per Year
12
Mains Gas Available
No
Habitable Rooms
0
Number of Extensions
0
Address
6 William Porter Close
Date
27 Sep 2017
Current
Potential
80
88
Property Type
House
Built Form
End-Terrace
Constructed
INVALID!
Certificate History
27 Sep 2017
80
88
26 Aug 2015
86
94
2 Jul 2015
88
92
Total Floor Area
168 sq m
Current CO2 Emissions Level
3.2
Potential CO2 Emissions Level
1.9
CO2 per sq m per Year
19
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
1
Address
60 William Porter Close
Date
14 Mar 2016
Current
Potential
87
93
Property Type
House
Built Form
Detached
Constructed
N/A
Certificate History
14 Mar 2016
87
93
Total Floor Area
195 sq m
Current CO2 Emissions Level
2.1
Potential CO2 Emissions Level
0.9
CO2 per sq m per Year
11
Mains Gas Available
No
Habitable Rooms
0
Number of Extensions
0
Address
62 William Porter Close
Date
14 Mar 2016
Current
Potential
86
91
Property Type
House
Built Form
Detached
Constructed
N/A
Certificate History
14 Mar 2016
86
91
Total Floor Area
238 sq m
Current CO2 Emissions Level
2.6
Potential CO2 Emissions Level
1.7
CO2 per sq m per Year
11
Mains Gas Available
No
Habitable Rooms
0
Number of Extensions
0
Address
7 William Porter Close
Date
2 Jul 2015
Current
Potential
84
92
Property Type
House
Built Form
End-Terrace
Constructed
N/A
Certificate History
2 Jul 2015
84
92
Total Floor Area
154 sq m
Current CO2 Emissions Level
2.3
Potential CO2 Emissions Level
1.0
CO2 per sq m per Year
15
Mains Gas Available
No
Habitable Rooms
0
Number of Extensions
0
Address
8 William Porter Close
Date
3 Sep 2015
Current
Potential
85
93
Property Type
House
Built Form
Mid-Terrace
Constructed
N/A
Certificate History
3 Sep 2015
85
93
Total Floor Area
154 sq m
Current CO2 Emissions Level
2.1
Potential CO2 Emissions Level
0.9
CO2 per sq m per Year
14
Mains Gas Available
No
Habitable Rooms
0
Number of Extensions
0
Address
9 William Porter Close
Date
9 Aug 2015
Current
Potential
86
93
Property Type
House
Built Form
Detached
Constructed
N/A
Certificate History
9 Aug 2015
86
93
2 Jul 2015
87
93
Total Floor Area
195 sq m
Current CO2 Emissions Level
2.2
Potential CO2 Emissions Level
0.9
CO2 per sq m per Year
11
Mains Gas Available
No
Habitable Rooms
0
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.
Contains public sector information licensed under the Open Government Licence v3.0.
Contains Royal Mail data © Royal Mail copyright and Database right 2025.