PROPERTY ENERGY EFFICIENCY CERTIFICATE DETAILS
King Street, LONDON, W6 0YJ

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 King Street, W6 0YJ 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 King Street, LONDON, W6 0YJ
Period Covered: 2008 - 31 January 2025

Address
Inspection Date
Current
Potential
Property Type
Built Form
Constructed
Address
46 ASHCROFT SQUARE, KING STREET
Date
10 Nov 2020
Current
Potential
78
80
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1950-1966
+
Certificate History
10 Nov 2020
78
80
Total Floor Area
47 sq m
Current CO2 Emissions Level
1.2
Potential CO2 Emissions Level
1.0
CO2 per sq m per Year
26
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
Flat 33, Ashcroft Square
Date
24 Oct 2023
Current
Potential
68
78
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1967-1975
+
Certificate History
24 Oct 2023
68
78
Total Floor Area
34 sq m
Current CO2 Emissions Level
1.8
Potential CO2 Emissions Level
1.0
CO2 per sq m per Year
51
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
Flat 34 Ashcroft Square, King Street
Date
14 Jun 2010
Current
Potential
83
83
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1967-1975
+
Certificate History
14 Jun 2010
83
83
Total Floor Area
72 sq m
Current CO2 Emissions Level
1.7
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
Flat 35, Ashcroft Square
Date
24 Oct 2023
Current
Potential
68
78
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1967-1975
+
Certificate History
24 Oct 2023
68
78
Total Floor Area
34 sq m
Current CO2 Emissions Level
1.8
Potential CO2 Emissions Level
1.0
CO2 per sq m per Year
51
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
Flat 36 Ashcroft Square, King Street
Date
20 Aug 2012
Current
Potential
72
73
Property Type
Flat
Built Form
N/A
Constructed
1976-1982
+
Certificate History
20 Aug 2012
72
73
Total Floor Area
43 sq m
Current CO2 Emissions Level
1.5
Potential CO2 Emissions Level
1.5
CO2 per sq m per Year
35
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
Flat 37, Ashcroft Square
Date
23 Oct 2023
Current
Potential
78
81
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1967-1975
+
Certificate History
23 Oct 2023
78
81
Total Floor Area
54 sq m
Current CO2 Emissions Level
1.3
Potential CO2 Emissions Level
1.0
CO2 per sq m per Year
23
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
Flat 38 Ashcroft Square, King Street
Date
21 Apr 2014
Current
Potential
76
82
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1976-1982
+
Certificate History
21 Apr 2014
76
82
Total Floor Area
67 sq m
Current CO2 Emissions Level
1.7
Potential CO2 Emissions Level
1.2
CO2 per sq m per Year
25
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
Flat 39, Ashcroft Square
Date
23 Oct 2023
Current
Potential
68
78
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1967-1975
+
Certificate History
23 Oct 2023
68
78
Total Floor Area
47 sq m
Current CO2 Emissions Level
2.1
Potential CO2 Emissions Level
1.2
CO2 per sq m per Year
45
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
Flat 40, Ashcroft Square
Date
31 Jul 2022
Current
Potential
80
82
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1976-1982
+
Certificate History
31 Jul 2022
80
82
Total Floor Area
69 sq m
Current CO2 Emissions Level
1.4
Potential CO2 Emissions Level
1.2
CO2 per sq m per Year
20
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
Flat 41 Ashcroft Square, King Street
Date
3 Aug 2015
Current
Potential
75
80
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1976-1982
+
Certificate History
3 Aug 2015
75
80
4 Feb 2010
83
85
23 Jan 2009
79
84
Total Floor Area
46 sq m
Current CO2 Emissions Level
1.4
Potential CO2 Emissions Level
1.0
CO2 per sq m per Year
30
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
Flat 42 Ashcroft Square, King Street
Date
24 Apr 2018
Current
Potential
76
76
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1967-1975
+
Certificate History
24 Apr 2018
76
76
25 Apr 2011
64
79
13 Jan 2009
73
84
Total Floor Area
45 sq m
Current CO2 Emissions Level
1.2
Potential CO2 Emissions Level
1.2
CO2 per sq m per Year
27
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
Flat 43, Ashcroft Square
Date
28 Nov 2024
Current
Potential
78
80
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1967-1975
+
Certificate History
28 Nov 2024
78
80
Total Floor Area
47 sq m
Current CO2 Emissions Level
1.1
Potential CO2 Emissions Level
1.0
CO2 per sq m per Year
24
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
Flat 43 Ashcroft Square, King Street
Date
8 Jan 2009
Current
Potential
71
84
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1967-1975
+
Certificate History
8 Jan 2009
71
84
Total Floor Area
47 sq m
Current CO2 Emissions Level
2.2
Potential CO2 Emissions Level
1.2
CO2 per sq m per Year
47
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
Flat 44, Ashcroft Square
Date
24 Oct 2023
Current
Potential
79
81
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1967-1975
+
Certificate History
24 Oct 2023
79
81
Total Floor Area
48 sq m
Current CO2 Emissions Level
1.0
Potential CO2 Emissions Level
0.9
CO2 per sq m per Year
22
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
Flat 46, Ashcroft Square
Date
24 Oct 2023
Current
Potential
66
77
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1967-1975
+
Certificate History
24 Oct 2023
66
77
Total Floor Area
47 sq m
Current CO2 Emissions Level
2.4
Potential CO2 Emissions Level
1.3
CO2 per sq m per Year
51
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
Flat 47, Ashcroft Square
Date
16 Jul 2023
Current
Potential
77
80
Property Type
Flat
Built Form
End-Terrace
Constructed
1976-1982
+
Certificate History
16 Jul 2023
77
80
Total Floor Area
47 sq m
Current CO2 Emissions Level
1.2
Potential CO2 Emissions Level
1.0
CO2 per sq m per Year
26
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
Flat 49, Ashcroft Square
Date
23 Oct 2023
Current
Potential
80
82
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1967-1975
+
Certificate History
23 Oct 2023
80
82
Total Floor Area
72 sq m
Current CO2 Emissions Level
1.4
Potential CO2 Emissions Level
1.2
CO2 per sq m per Year
20
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
Flat 49 Ashcroft Square, King Street
Date
15 Sep 2016
Current
Potential
76
77
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1930-1949
+
Certificate History
15 Sep 2016
76
77
9 Jun 2013
78
79
Total Floor Area
68 sq m
Current CO2 Emissions Level
1.8
Potential CO2 Emissions Level
1.7
CO2 per sq m per Year
26
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
Flat 50, Ashcroft Square
Date
23 Oct 2023
Current
Potential
75
79
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1967-1975
+
Certificate History
23 Oct 2023
75
79
Total Floor Area
47 sq m
Current CO2 Emissions Level
1.4
Potential CO2 Emissions Level
1.1
CO2 per sq m per Year
29
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
Flat 52 Ashcroft Square, King Street
Date
7 Jun 2018
Current
Potential
79
80
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1930-1949
+
Certificate History
7 Jun 2018
79
80
Total Floor Area
45 sq m
Current CO2 Emissions Level
1.0
Potential CO2 Emissions Level
1.0
CO2 per sq m per Year
22
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
Flat 54, Ashcroft Square
Date
21 Aug 2022
Current
Potential
75
79
Property Type
Flat
Built Form
End-Terrace
Constructed
1967-1975
+
Certificate History
21 Aug 2022
75
79
Total Floor Area
68 sq m
Current CO2 Emissions Level
1.8
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
Flat 55, Ashcroft Square
Date
21 Aug 2022
Current
Potential
75
78
Property Type
Flat
Built Form
End-Terrace
Constructed
1967-1975
+
Certificate History
21 Aug 2022
75
78
Total Floor Area
46 sq m
Current CO2 Emissions Level
1.4
Potential CO2 Emissions Level
1.2
CO2 per sq m per Year
30
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
Flat 55 Ashcroft Square, King Street
Date
23 Mar 2012
Current
Potential
77
81
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1950-1966
+
Certificate History
23 Mar 2012
77
81
Total Floor Area
67 sq m
Current CO2 Emissions Level
1.7
Potential CO2 Emissions Level
1.3
CO2 per sq m per Year
25
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
Flat 56, Ashcroft Square
Date
21 Aug 2022
Current
Potential
77
79
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1967-1975
+
Certificate History
21 Aug 2022
77
79
Total Floor Area
46 sq m
Current CO2 Emissions Level
1.2
Potential CO2 Emissions Level
1.1
CO2 per sq m per Year
26
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
Flat 56 Ashcroft Square, King Street
Date
27 Oct 2010
Current
Potential
83
83
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1967-1975
+
Certificate History
27 Oct 2010
83
83
Total Floor Area
48 sq m
Current CO2 Emissions Level
1.3
Potential CO2 Emissions Level
1.3
CO2 per sq m per Year
26
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
Flat 57, Ashcroft Square
Date
2 Dec 2024
Current
Potential
65
69
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1967-1975
+
Certificate History
2 Dec 2024
65
69
22 Aug 2022
77
79
Total Floor Area
48 sq m
Current CO2 Emissions Level
2.3
Potential CO2 Emissions Level
1.9
CO2 per sq m per Year
49
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
Flat 59, Ashcroft Square
Date
18 Aug 2022
Current
Potential
73
77
Property Type
Flat
Built Form
End-Terrace
Constructed
1967-1975
+
Certificate History
18 Aug 2022
73
77
Total Floor Area
46 sq m
Current CO2 Emissions Level
1.6
Potential CO2 Emissions Level
1.3
CO2 per sq m per Year
34
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
Flat 60, Ashcroft Square
Date
26 Mar 2024
Current
Potential
79
81
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1967-1975
+
Certificate History
26 Mar 2024
79
81
18 Aug 2022
75
79
Total Floor Area
48 sq m
Current CO2 Emissions Level
1.0
Potential CO2 Emissions Level
0.9
CO2 per sq m per Year
22
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
Flat 61, Ashcroft Square
Date
18 Aug 2022
Current
Potential
77
79
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1967-1975
+
Certificate History
18 Aug 2022
77
79
31 Jul 2022
79
80
Total Floor Area
46 sq m
Current CO2 Emissions Level
1.2
Potential CO2 Emissions Level
1.1
CO2 per sq m per Year
26
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
Flat 62, Ashcroft Square
Date
18 Aug 2022
Current
Potential
75
79
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1967-1975
+
Certificate History
18 Aug 2022
75
79
Total Floor Area
46 sq m
Current CO2 Emissions Level
1.4
Potential CO2 Emissions Level
1.1
CO2 per sq m per Year
30
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
Flat 63, Ashcroft Square
Date
18 Aug 2022
Current
Potential
77
79
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1967-1975
+
Certificate History
18 Aug 2022
77
79
Total Floor Area
46 sq m
Current CO2 Emissions Level
1.2
Potential CO2 Emissions Level
1.1
CO2 per sq m per Year
26
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
Flat 64, Ashcroft Square
Date
18 Aug 2022
Current
Potential
67
77
Property Type
Flat
Built Form
End-Terrace
Constructed
1967-1975
+
Certificate History
18 Aug 2022
67
77
Total Floor Area
46 sq m
Current CO2 Emissions Level
2.2
Potential CO2 Emissions Level
1.3
CO2 per sq m per Year
47
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
Flat 64 Ashcroft Square, King Street
Date
25 Mar 2014
Current
Potential
64
72
Property Type
Flat
Built Form
End-Terrace
Constructed
1976-1982
+
Certificate History
25 Mar 2014
64
72
Total Floor Area
47 sq m
Current CO2 Emissions Level
2.3
Potential CO2 Emissions Level
1.6
CO2 per sq m per Year
50
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
Flat 65 Ashcroft Square, King Street
Date
19 Dec 2014
Current
Potential
65
72
Property Type
Flat
Built Form
End-Terrace
Constructed
1967-1975
+
Certificate History
19 Dec 2014
65
72
Total Floor Area
68 sq m
Current CO2 Emissions Level
2.9
Potential CO2 Emissions Level
2.2
CO2 per sq m per Year
42
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
Flat 66, Ashcroft Square
Date
18 Aug 2022
Current
Potential
79
81
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1967-1975
+
Certificate History
18 Aug 2022
79
81
Total Floor Area
69 sq m
Current CO2 Emissions Level
1.5
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
Flat 67, Ashcroft Square
Date
18 Aug 2022
Current
Potential
79
81
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1967-1975
+
Certificate History
18 Aug 2022
79
81
Total Floor Area
69 sq m
Current CO2 Emissions Level
1.5
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
Flat 68 Ashcroft Square, King Street
Date
2 Feb 2017
Current
Potential
72
72
Property Type
Flat
Built Form
End-Terrace
Constructed
1967-1975
+
Certificate History
2 Feb 2017
72
72
Total Floor Area
63 sq m
Current CO2 Emissions Level
2.0
Potential CO2 Emissions Level
2.0
CO2 per sq m per Year
32
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
Flat 69, Ashcroft Square
Date
18 Aug 2022
Current
Potential
73
78
Property Type
Flat
Built Form
Detached
Constructed
1967-1975
+
Certificate History
18 Aug 2022
73
78
Total Floor Area
69 sq m
Current CO2 Emissions Level
2.1
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
Flat 70 Ashcroft Square, King Street
Date
9 Jan 2020
Current
Potential
80
82
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1930-1949
+
Certificate History
9 Jan 2020
80
82
Total Floor Area
55 sq m
Current CO2 Emissions Level
1.1
Potential CO2 Emissions Level
0.9
CO2 per sq m per Year
20
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
Flat 71, Ashcroft Square
Date
24 Oct 2023
Current
Potential
66
77
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1967-1975
+
Certificate History
24 Oct 2023
66
77
Total Floor Area
47 sq m
Current CO2 Emissions Level
2.4
Potential CO2 Emissions Level
1.3
CO2 per sq m per Year
50
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
Flat 72, Ashcroft Square
Date
18 Aug 2022
Current
Potential
79
81
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1967-1975
+
Certificate History
18 Aug 2022
79
81
Total Floor Area
69 sq m
Current CO2 Emissions Level
1.5
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
FLAT 73, ASHCROFT SQUARE
Date
24 Oct 2023
Current
Potential
68
78
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1967-1975
+
Certificate History
24 Oct 2023
68
78
17 May 2021
78
80
Total Floor Area
47 sq m
Current CO2 Emissions Level
2.1
Potential CO2 Emissions Level
1.2
CO2 per sq m per Year
45
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
Flat 74, Ashcroft Square
Date
18 Aug 2022
Current
Potential
76
80
Property Type
Flat
Built Form
End-Terrace
Constructed
1967-1975
+
Certificate History
18 Aug 2022
76
80
Total Floor Area
69 sq m
Current CO2 Emissions Level
1.8
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
Flat 75 Ashcroft Square, King Street
Date
18 Apr 2018
Current
Potential
77
77
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1967-1975
+
Certificate History
18 Apr 2018
77
77
Total Floor Area
72 sq m
Current CO2 Emissions Level
1.8
Potential CO2 Emissions Level
1.8
CO2 per sq m per Year
24
Mains Gas Available
Yes
Habitable Rooms
4
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.