PROPERTY ENERGY EFFICIENCY CERTIFICATE DETAILS
Basing Street, LONDON, W11 1ER
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 Basing Street, W11 1ER 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 Basing Street, LONDON, W11 1ER
Period Covered:
2008 - 31 January 2025
Address
Inspection Date
Current
Potential
Property Type
Built Form
Constructed
Address
Flat 1 Silvester House, Basing Street
Date
25 Mar 2015
Current
Potential
63
77
Property Type
Flat
Built Form
End-Terrace
Constructed
1900-1929
Certificate History
25 Mar 2015
63
77
Total Floor Area
72 sq m
Current CO2 Emissions Level
3.3
Potential CO2 Emissions Level
1.7
CO2 per sq m per Year
45
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
Flat 10, Silvester House
Date
23 Jun 2022
Current
Potential
74
77
Property Type
Maisonette
Built Form
Mid-Terrace
Constructed
1950-1966
Certificate History
23 Jun 2022
74
77
Total Floor Area
64 sq m
Current CO2 Emissions Level
1.8
Potential CO2 Emissions Level
1.5
CO2 per sq m per Year
29
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
Flat 10 Silvester House, Basing Street
Date
25 Mar 2015
Current
Potential
69
78
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
25 Mar 2015
69
78
11 Dec 2014
71
78
10 Nov 2010
65
81
Total Floor Area
69 sq m
Current CO2 Emissions Level
2.5
Potential CO2 Emissions Level
1.5
CO2 per sq m per Year
36
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
Flat 11 Silvester House, Basing Street
Date
25 Mar 2015
Current
Potential
67
77
Property Type
Flat
Built Form
End-Terrace
Constructed
1900-1929
Certificate History
25 Mar 2015
67
77
Total Floor Area
93 sq m
Current CO2 Emissions Level
3.4
Potential CO2 Emissions Level
2.1
CO2 per sq m per Year
36
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
Flat 12 Silvester House, Basing Street
Date
25 Mar 2015
Current
Potential
61
75
Property Type
Flat
Built Form
End-Terrace
Constructed
1900-1929
Certificate History
25 Mar 2015
61
75
Total Floor Area
93 sq m
Current CO2 Emissions Level
4.1
Potential CO2 Emissions Level
2.3
CO2 per sq m per Year
44
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
Flat 13, Silvester House
Date
5 Jun 2022
Current
Potential
69
72
Property Type
Maisonette
Built Form
Mid-Terrace
Constructed
1967-1975
Certificate History
5 Jun 2022
69
72
Total Floor Area
94 sq m
Current CO2 Emissions Level
3.1
Potential CO2 Emissions Level
2.7
CO2 per sq m per Year
33
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
Flat 13 Silvester House, Basing Street
Date
25 Mar 2015
Current
Potential
56
69
Property Type
Flat
Built Form
End-Terrace
Constructed
1900-1929
Certificate History
25 Mar 2015
56
69
Total Floor Area
93 sq m
Current CO2 Emissions Level
4.7
Potential CO2 Emissions Level
3.1
CO2 per sq m per Year
50
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
Flat 14 Silvester House, Basing Street
Date
25 Mar 2015
Current
Potential
63
72
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
25 Mar 2015
63
72
Total Floor Area
69 sq m
Current CO2 Emissions Level
3.1
Potential CO2 Emissions Level
2.2
CO2 per sq m per Year
45
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
Flat 15 Silvester House, Basing Street
Date
25 Mar 2015
Current
Potential
63
70
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
25 Mar 2015
63
70
Total Floor Area
69 sq m
Current CO2 Emissions Level
3.1
Potential CO2 Emissions Level
2.4
CO2 per sq m per Year
45
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
Flat 16 Silvester House, Basing Street
Date
25 Mar 2015
Current
Potential
65
72
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
25 Mar 2015
65
72
Total Floor Area
69 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
4
Number of Extensions
0
Address
Flat 17 Silvester House, Basing Street
Date
25 Mar 2015
Current
Potential
63
70
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
25 Mar 2015
63
70
Total Floor Area
69 sq m
Current CO2 Emissions Level
3.1
Potential CO2 Emissions Level
2.4
CO2 per sq m per Year
45
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
Flat 18 Silvester House, Basing Street
Date
25 Mar 2015
Current
Potential
63
70
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
25 Mar 2015
63
70
Total Floor Area
69 sq m
Current CO2 Emissions Level
3.1
Potential CO2 Emissions Level
2.4
CO2 per sq m per Year
45
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
Flat 19 Silvester House, Basing Street
Date
12 Sep 2013
Current
Potential
66
71
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1950-1966
Certificate History
12 Sep 2013
66
71
Total Floor Area
65 sq m
Current CO2 Emissions Level
2.6
Potential CO2 Emissions Level
2.2
CO2 per sq m per Year
41
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
Flat 2 Silvester House, Basing Street
Date
25 Mar 2015
Current
Potential
69
78
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
25 Mar 2015
69
78
Total Floor Area
72 sq m
Current CO2 Emissions Level
2.6
Potential CO2 Emissions Level
1.6
CO2 per sq m per Year
35
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
Flat 20 Silvester House, Basing Street
Date
25 Mar 2015
Current
Potential
63
72
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
25 Mar 2015
63
72
Total Floor Area
69 sq m
Current CO2 Emissions Level
3.1
Potential CO2 Emissions Level
2.2
CO2 per sq m per Year
45
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
Flat 21, Silvester House
Date
5 Jun 2022
Current
Potential
66
71
Property Type
Maisonette
Built Form
End-Terrace
Constructed
1967-1975
Certificate History
5 Jun 2022
66
71
Total Floor Area
94 sq m
Current CO2 Emissions Level
3.5
Potential CO2 Emissions Level
2.9
CO2 per sq m per Year
38
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
Flat 21 Silvester House, Basing Street
Date
25 Mar 2015
Current
Potential
38
68
Property Type
Flat
Built Form
End-Terrace
Constructed
1900-1929
Certificate History
25 Mar 2015
38
68
Total Floor Area
89 sq m
Current CO2 Emissions Level
6.9
Potential CO2 Emissions Level
3.1
CO2 per sq m per Year
78
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
0
Address
Flat 22 Silvester House, Basing Street
Date
25 Mar 2015
Current
Potential
59
71
Property Type
Flat
Built Form
End-Terrace
Constructed
1900-1929
Certificate History
25 Mar 2015
59
71
Total Floor Area
72 sq m
Current CO2 Emissions Level
3.7
Potential CO2 Emissions Level
2.4
CO2 per sq m per Year
52
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
Flat 23, Silvester House
Date
5 Jun 2022
Current
Potential
71
74
Property Type
Maisonette
Built Form
Mid-Terrace
Constructed
1967-1975
Certificate History
5 Jun 2022
71
74
Total Floor Area
70 sq m
Current CO2 Emissions Level
2.3
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 23 Silvester House, Basing Street
Date
25 Mar 2015
Current
Potential
63
70
Property Type
Flat
Built Form
End-Terrace
Constructed
1900-1929
Certificate History
25 Mar 2015
63
70
Total Floor Area
72 sq m
Current CO2 Emissions Level
3.2
Potential CO2 Emissions Level
2.5
CO2 per sq m per Year
45
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
Flat 24 Silvester House, Basing Street
Date
25 Mar 2015
Current
Potential
57
70
Property Type
Flat
Built Form
End-Terrace
Constructed
1900-1929
Certificate History
25 Mar 2015
57
70
Total Floor Area
72 sq m
Current CO2 Emissions Level
3.9
Potential CO2 Emissions Level
2.5
CO2 per sq m per Year
54
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
Flat 3 Silvester House, Basing Street
Date
25 Mar 2015
Current
Potential
63
77
Property Type
Flat
Built Form
End-Terrace
Constructed
1900-1929
Certificate History
25 Mar 2015
63
77
Total Floor Area
72 sq m
Current CO2 Emissions Level
3.3
Potential CO2 Emissions Level
1.7
CO2 per sq m per Year
45
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
Flat 4 Silvester House, Basing Street
Date
25 Mar 2015
Current
Potential
56
76
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
25 Mar 2015
56
76
Total Floor Area
77 sq m
Current CO2 Emissions Level
4.2
Potential CO2 Emissions Level
2.0
CO2 per sq m per Year
54
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
Flat 5 Silvester House, Basing Street
Date
25 Mar 2015
Current
Potential
56
76
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
25 Mar 2015
56
76
Total Floor Area
77 sq m
Current CO2 Emissions Level
4.2
Potential CO2 Emissions Level
2.0
CO2 per sq m per Year
54
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
Flat 6, Silvester House
Date
5 Jun 2022
Current
Potential
74
77
Property Type
Maisonette
Built Form
Mid-Terrace
Constructed
1967-1975
Certificate History
5 Jun 2022
74
77
Total Floor Area
72 sq m
Current CO2 Emissions Level
2.1
Potential CO2 Emissions Level
1.7
CO2 per sq m per Year
29
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
Flat 6 Silvester House, Basing Street
Date
25 Mar 2015
Current
Potential
69
78
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
25 Mar 2015
69
78
Total Floor Area
69 sq m
Current CO2 Emissions Level
2.5
Potential CO2 Emissions Level
1.5
CO2 per sq m per Year
36
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
Flat 7, Silvester House
Date
5 Jun 2022
Current
Potential
72
77
Property Type
Maisonette
Built Form
Mid-Terrace
Constructed
1967-1975
Certificate History
5 Jun 2022
72
77
Total Floor Area
72 sq m
Current CO2 Emissions Level
2.3
Potential CO2 Emissions Level
1.8
CO2 per sq m per Year
32
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
Flat 7 Silvester House, Basing Street
Date
25 Mar 2015
Current
Potential
69
78
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
25 Mar 2015
69
78
Total Floor Area
69 sq m
Current CO2 Emissions Level
2.5
Potential CO2 Emissions Level
1.5
CO2 per sq m per Year
36
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
Flat 8 Silvester House, Basing Street
Date
25 Mar 2015
Current
Potential
69
78
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
25 Mar 2015
69
78
Total Floor Area
69 sq m
Current CO2 Emissions Level
2.5
Potential CO2 Emissions Level
1.5
CO2 per sq m per Year
36
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
Flat 9, Silvester House
Date
5 Jun 2022
Current
Potential
72
77
Property Type
Maisonette
Built Form
Mid-Terrace
Constructed
1967-1975
Certificate History
5 Jun 2022
72
77
Total Floor Area
72 sq m
Current CO2 Emissions Level
2.3
Potential CO2 Emissions Level
1.8
CO2 per sq m per Year
32
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
Flat 9 Silvester House, Basing Street
Date
25 Mar 2015
Current
Potential
69
78
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
25 Mar 2015
69
78
Total Floor Area
69 sq m
Current CO2 Emissions Level
2.5
Potential CO2 Emissions Level
1.5
CO2 per sq m per Year
36
Mains Gas Available
Yes
Habitable Rooms
4
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.