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PROPERTY ENERGY EFFICIENCY CERTIFICATE DETAILS
John Williams Close, LONDON, SE14 5XA

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 John Williams Close, SE14 5XA 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 John Williams Close, LONDON, SE14 5XA
Period Covered: 2008 - 31 January 2025

Address
Inspection Date
Current
Potential
Property Type
Built Form
Constructed
Address
12 John Williams Close
Date
14 Sep 2017
Current
Potential
65
88
Property Type
House
Built Form
Mid-Terrace
Constructed
1991-1995
+
Certificate History
14 Sep 2017
65
88
Total Floor Area
62 sq m
Current CO2 Emissions Level
2.7
Potential CO2 Emissions Level
0.6
CO2 per sq m per Year
43
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
13 John Williams Close
Date
26 Dec 2016
Current
Potential
71
87
Property Type
House
Built Form
Mid-Terrace
Constructed
1983-1990
+
Certificate History
26 Dec 2016
71
87
Total Floor Area
72 sq m
Current CO2 Emissions Level
2.2
Potential CO2 Emissions Level
0.8
CO2 per sq m per Year
31
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
15 John Williams Close
Date
30 Jan 2009
Current
Potential
76
80
Property Type
House
Built Form
Mid-Terrace
Constructed
1983-1990
+
Certificate History
30 Jan 2009
76
80
Total Floor Area
62 sq m
Current CO2 Emissions Level
2.2
Potential CO2 Emissions Level
1.8
CO2 per sq m per Year
35
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
18 John Williams Close
Date
26 Dec 2016
Current
Potential
74
86
Property Type
House
Built Form
Mid-Terrace
Constructed
1991-1995
+
Certificate History
26 Dec 2016
74
86
Total Floor Area
90 sq m
Current CO2 Emissions Level
2.4
Potential CO2 Emissions Level
1.1
CO2 per sq m per Year
26
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
19 John Williams Close
Date
2 Jun 2023
Current
Potential
66
88
Property Type
House
Built Form
Mid-Terrace
Constructed
1991-1995
+
Certificate History
2 Jun 2023
66
88
Total Floor Area
62 sq m
Current CO2 Emissions Level
2.5
Potential CO2 Emissions Level
0.7
CO2 per sq m per Year
41
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
2 John Williams Close
Date
12 Jan 2017
Current
Potential
72
88
Property Type
House
Built Form
Mid-Terrace
Constructed
1996-2002
+
Certificate History
12 Jan 2017
72
88
22 Oct 2008
77
80
Total Floor Area
68 sq m
Current CO2 Emissions Level
2.0
Potential CO2 Emissions Level
0.7
CO2 per sq m per Year
30
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
20 John Williams Close
Date
26 Dec 2016
Current
Potential
73
89
Property Type
House
Built Form
Mid-Terrace
Constructed
1991-1995
+
Certificate History
26 Dec 2016
73
89
Total Floor Area
72 sq m
Current CO2 Emissions Level
2.0
Potential CO2 Emissions Level
0.7
CO2 per sq m per Year
28
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
21 John Williams Close
Date
12 Jan 2017
Current
Potential
72
88
Property Type
House
Built Form
Mid-Terrace
Constructed
1996-2002
+
Certificate History
12 Jan 2017
72
88
Total Floor Area
68 sq m
Current CO2 Emissions Level
2.0
Potential CO2 Emissions Level
0.7
CO2 per sq m per Year
30
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
23 John Williams Close
Date
8 Jan 2020
Current
Potential
68
85
Property Type
House
Built Form
End-Terrace
Constructed
1991-1995
+
Certificate History
8 Jan 2020
68
85
Total Floor Area
63 sq m
Current CO2 Emissions Level
2.4
Potential CO2 Emissions Level
0.9
CO2 per sq m per Year
37
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
24 John Williams Close
Date
26 Dec 2016
Current
Potential
69
84
Property Type
House
Built Form
End-Terrace
Constructed
1991-1995
+
Certificate History
26 Dec 2016
69
84
Total Floor Area
72 sq m
Current CO2 Emissions Level
2.5
Potential CO2 Emissions Level
1.2
CO2 per sq m per Year
35
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
29 John Williams Close
Date
14 May 2013
Current
Potential
69
87
Property Type
House
Built Form
Mid-Terrace
Constructed
1983-1990
+
Certificate History
14 May 2013
69
87
Total Floor Area
84 sq m
Current CO2 Emissions Level
2.9
Potential CO2 Emissions Level
1.0
CO2 per sq m per Year
35
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
30 John Williams Close
Date
14 May 2013
Current
Potential
71
89
Property Type
House
Built Form
Mid-Terrace
Constructed
1991-1995
+
Certificate History
14 May 2013
71
89
Total Floor Area
62 sq m
Current CO2 Emissions Level
2.1
Potential CO2 Emissions Level
0.6
CO2 per sq m per Year
34
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
31 John Williams Close
Date
14 May 2013
Current
Potential
70
83
Property Type
House
Built Form
Mid-Terrace
Constructed
1991-1995
+
Certificate History
14 May 2013
70
83
Total Floor Area
63 sq m
Current CO2 Emissions Level
2.3
Potential CO2 Emissions Level
1.2
CO2 per sq m per Year
36
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
32 John Williams Close
Date
14 May 2013
Current
Potential
69
89
Property Type
House
Built Form
Mid-Terrace
Constructed
1991-1995
+
Certificate History
14 May 2013
69
89
Total Floor Area
64 sq m
Current CO2 Emissions Level
2.4
Potential CO2 Emissions Level
0.6
CO2 per sq m per Year
37
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
4 John Williams Close
Date
12 Jan 2017
Current
Potential
72
88
Property Type
House
Built Form
Mid-Terrace
Constructed
1996-2002
+
Certificate History
12 Jan 2017
72
88
25 Nov 2014
75
90
Total Floor Area
68 sq m
Current CO2 Emissions Level
2.0
Potential CO2 Emissions Level
0.7
CO2 per sq m per Year
30
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
5 John Williams Close
Date
10 Feb 2011
Current
Potential
84
84
Property Type
House
Built Form
Mid-Terrace
Constructed
2003-2006
+
Certificate History
10 Feb 2011
84
84
Total Floor Area
60 sq m
Current CO2 Emissions Level
1.4
Potential CO2 Emissions Level
1.4
CO2 per sq m per Year
23
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
6 John Williams Close
Date
26 Dec 2016
Current
Potential
72
87
Property Type
House
Built Form
Mid-Terrace
Constructed
1983-1990
+
Certificate History
26 Dec 2016
72
87
Total Floor Area
72 sq m
Current CO2 Emissions Level
2.2
Potential CO2 Emissions Level
0.8
CO2 per sq m per Year
30
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
8 John Williams Close
Date
12 Jan 2017
Current
Potential
71
87
Property Type
House
Built Form
Mid-Terrace
Constructed
1996-2002
+
Certificate History
12 Jan 2017
71
87
Total Floor Area
68 sq m
Current CO2 Emissions Level
2.1
Potential CO2 Emissions Level
0.8
CO2 per sq m per Year
31
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
9 John Williams Close
Date
12 Jan 2017
Current
Potential
72
88
Property Type
House
Built Form
Mid-Terrace
Constructed
1996-2002
+
Certificate History
12 Jan 2017
72
88
Total Floor Area
68 sq m
Current CO2 Emissions Level
2.0
Potential CO2 Emissions Level
0.7
CO2 per sq m per Year
30
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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Contains Royal Mail data © Royal Mail copyright and Database right 2025.