PROPERTY ENERGY EFFICIENCY CERTIFICATE DETAILS
High Street, LONDON, W3 6LY

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 High Street, W3 6LY 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 High Street, LONDON, W3 6LY
Period Covered: 2008 - 31 January 2025

Address
Inspection Date
Current
Potential
Property Type
Built Form
Constructed
Address
123a High Street
Date
11 Jun 2014
Current
Potential
62
75
Property Type
Flat
Built Form
Mid-Terrace
Constructed
before 1900
+
Certificate History
11 Jun 2014
62
75
Total Floor Area
47 sq m
Current CO2 Emissions Level
2.5
Potential CO2 Emissions Level
1.4
CO2 per sq m per Year
53
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
125a High Street
Date
27 Mar 2023
Current
Potential
76
76
Property Type
Flat
Built Form
Mid-Terrace
Constructed
2007-2011
+
Certificate History
27 Mar 2023
76
76
18 Jul 2010
77
79
Total Floor Area
68 sq m
Current CO2 Emissions Level
1.8
Potential CO2 Emissions Level
1.8
CO2 per sq m per Year
26
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
125b High Street
Date
3 Aug 2020
Current
Potential
80
81
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1900-1929
+
Certificate History
3 Aug 2020
80
81
18 Jul 2010
82
84
Total Floor Area
76 sq m
Current CO2 Emissions Level
1.4
Potential CO2 Emissions Level
1.4
CO2 per sq m per Year
19
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
127a High Street
Date
3 Sep 2020
Current
Potential
74
77
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1900-1929
+
Certificate History
3 Sep 2020
74
77
16 Oct 2009
74
76
Total Floor Area
56 sq m
Current CO2 Emissions Level
1.7
Potential CO2 Emissions Level
1.4
CO2 per sq m per Year
31
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
127b High Street
Date
22 Oct 2019
Current
Potential
65
76
Property Type
Maisonette
Built Form
Mid-Terrace
Constructed
1900-1929
+
Certificate History
22 Oct 2019
65
76
27 May 2009
56
61
Total Floor Area
99 sq m
Current CO2 Emissions Level
3.8
Potential CO2 Emissions Level
2.4
CO2 per sq m per Year
38
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
1
Address
129a High Street
Date
26 Aug 2020
Current
Potential
74
77
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1900-1929
+
Certificate History
26 Aug 2020
74
77
6 May 2010
69
76
Total Floor Area
67 sq m
Current CO2 Emissions Level
1.9
Potential CO2 Emissions Level
1.7
CO2 per sq m per Year
28
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
129b High Street
Date
17 Mar 2014
Current
Potential
47
69
Property Type
Flat
Built Form
Detached
Constructed
1900-1929
+
Certificate History
17 Mar 2014
47
69
Total Floor Area
101 sq m
Current CO2 Emissions Level
6.3
Potential CO2 Emissions Level
3.4
CO2 per sq m per Year
62
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
131a High Street
Date
22 Feb 2024
Current
Potential
62
79
Property Type
Maisonette
Built Form
Mid-Terrace
Constructed
1900-1929
+
Certificate History
22 Feb 2024
62
79
Total Floor Area
169 sq m
Current CO2 Emissions Level
6.6
Potential CO2 Emissions Level
3.4
CO2 per sq m per Year
39
Mains Gas Available
Yes
Habitable Rooms
7
Number of Extensions
1
Address
133a High Street
Date
11 Apr 2010
Current
Potential
64
66
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1900-1929
+
Certificate History
11 Apr 2010
64
66
16 Feb 2009
48
67
Total Floor Area
79 sq m
Current CO2 Emissions Level
3.8
Potential CO2 Emissions Level
3.7
CO2 per sq m per Year
48
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
133A HIGH STREET, ACTON
Date
7 Jan 2021
Current
Potential
70
75
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1930-1949
+
Certificate History
7 Jan 2021
70
75
Total Floor Area
82 sq m
Current CO2 Emissions Level
2.7
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
133b High Street
Date
3 Nov 2014
Current
Potential
67
79
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1900-1929
+
Certificate History
3 Nov 2014
67
79
Total Floor Area
85 sq m
Current CO2 Emissions Level
3.2
Potential CO2 Emissions Level
1.8
CO2 per sq m per Year
37
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
First Floor Flat, 135 High Street
Date
29 May 2023
Current
Potential
69
74
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1900-1929
+
Certificate History
29 May 2023
69
74
20 May 2013
60
74
Total Floor Area
40 sq m
Current CO2 Emissions Level
1.8
Potential CO2 Emissions Level
1.3
CO2 per sq m per Year
44
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
Flat 1, 121, High Street
Date
15 Aug 2018
Current
Potential
48
59
Property Type
Flat
Built Form
Mid-Terrace
Constructed
before 1900
+
Certificate History
15 Aug 2018
48
59
Total Floor Area
23 sq m
Current CO2 Emissions Level
2.1
Potential CO2 Emissions Level
1.7
CO2 per sq m per Year
91
Mains Gas Available
No
Habitable Rooms
1
Number of Extensions
0
Address
Flat 1, 123 High Street
Date
29 May 2024
Current
Potential
73
75
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1900-1929
+
Certificate History
29 May 2024
73
75
Total Floor Area
47 sq m
Current CO2 Emissions Level
1.5
Potential CO2 Emissions Level
1.3
CO2 per sq m per Year
33
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
Flat 2, 121, High Street
Date
31 Oct 2018
Current
Potential
72
83
Property Type
Flat
Built Form
Enclosed Mid-Terrace
Constructed
before 1900
+
Certificate History
31 Oct 2018
72
83
Total Floor Area
20 sq m
Current CO2 Emissions Level
1.4
Potential CO2 Emissions Level
1.2
CO2 per sq m per Year
69
Mains Gas Available
No
Habitable Rooms
1
Number of Extensions
0
Address
Flat 2, 123 High Street
Date
9 Jan 2024
Current
Potential
63
70
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1900-1929
+
Certificate History
9 Jan 2024
63
70
Total Floor Area
95 sq m
Current CO2 Emissions Level
4.0
Potential CO2 Emissions Level
3.1
CO2 per sq m per Year
42
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
2
Address
Flat 3, 121, High Street
Date
31 Oct 2018
Current
Potential
62
72
Property Type
Flat
Built Form
Enclosed Mid-Terrace
Constructed
before 1900
+
Certificate History
31 Oct 2018
62
72
Total Floor Area
23 sq m
Current CO2 Emissions Level
1.9
Potential CO2 Emissions Level
1.1
CO2 per sq m per Year
84
Mains Gas Available
Yes
Habitable Rooms
1
Number of Extensions
0
Address
Flat 4, 121, High Street
Date
9 Nov 2018
Current
Potential
64
78
Property Type
Flat
Built Form
Mid-Terrace
Constructed
before 1900
+
Certificate History
9 Nov 2018
64
78
15 Aug 2018
18
64
Total Floor Area
48 sq m
Current CO2 Emissions Level
2.5
Potential CO2 Emissions Level
2.2
CO2 per sq m per Year
51
Mains Gas Available
No
Habitable Rooms
2
Number of Extensions
0
Address
Flat 5, 121, High Street
Date
31 Oct 2018
Current
Potential
65
78
Property Type
Flat
Built Form
Mid-Terrace
Constructed
before 1900
+
Certificate History
31 Oct 2018
65
78
Total Floor Area
45 sq m
Current CO2 Emissions Level
2.3
Potential CO2 Emissions Level
2.1
CO2 per sq m per Year
51
Mains Gas Available
No
Habitable Rooms
2
Number of Extensions
0
Address
Flat 6, 121, High Street
Date
9 Nov 2018
Current
Potential
57
77
Property Type
Flat
Built Form
Mid-Terrace
Constructed
before 1900
+
Certificate History
9 Nov 2018
57
77
Total Floor Area
49 sq m
Current CO2 Emissions Level
3.0
Potential CO2 Emissions Level
2.3
CO2 per sq m per Year
61
Mains Gas Available
No
Habitable Rooms
2
Number of Extensions
0
Address
Flat 7, 121 High Street
Date
13 Mar 2020
Current
Potential
62
62
Property Type
Flat
Built Form
N/A
Constructed
N/A
+
Certificate History
13 Mar 2020
62
62
Total Floor Area
22 sq m
Current CO2 Emissions Level
1.5
Potential CO2 Emissions Level
1.5
CO2 per sq m per Year
67
Mains Gas Available
No
Habitable Rooms
0
Number of Extensions
0
Address
Top Floor Flat, 135 High Street
Date
29 May 2023
Current
Potential
70
74
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1900-1929
+
Certificate History
29 May 2023
70
74
16 Jun 2013
60
71
Total Floor Area
58 sq m
Current CO2 Emissions Level
2.1
Potential CO2 Emissions Level
1.7
CO2 per sq m per Year
37
Mains Gas Available
Yes
Habitable Rooms
3
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.

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