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PROPERTY ENERGY EFFICIENCY CERTIFICATE DETAILS
Twyford Avenue, LONDON, W3 9PY

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 Twyford Avenue, W3 9PY 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 Twyford Avenue, LONDON, W3 9PY
Period Covered: 2008 - 31 October 2024

Address
Inspection Date
Current
Potential
Property Type
Built Form
Constructed
Address
21 Twyford Avenue
Date
4 Sep 2024
Current
Potential
66
78
Property Type
House
Built Form
Semi-Detached
Constructed
1900-1929
+
Certificate History
4 Sep 2024
66
78
Total Floor Area
287 sq m
Current CO2 Emissions Level
8.1
Potential CO2 Emissions Level
5.4
CO2 per sq m per Year
28
Mains Gas Available
Yes
Habitable Rooms
10
Number of Extensions
1
Address
25 Twyford Avenue
Date
31 May 2015
Current
Potential
46
66
Property Type
House
Built Form
Semi-Detached
Constructed
1900-1929
+
Certificate History
31 May 2015
46
66
Total Floor Area
219 sq m
Current CO2 Emissions Level
14.0
Potential CO2 Emissions Level
8.6
CO2 per sq m per Year
63
Mains Gas Available
Yes
Habitable Rooms
7
Number of Extensions
2
Address
27 Twyford Avenue
Date
7 Sep 2010
Current
Potential
59
62
Property Type
Flat
Built Form
Semi-Detached
Constructed
1900-1929
+
Certificate History
7 Sep 2010
59
62
16 Jul 2009
62
65
Total Floor Area
86 sq m
Current CO2 Emissions Level
4.7
Potential CO2 Emissions Level
4.4
CO2 per sq m per Year
54
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
27a Twyford Avenue
Date
16 Jul 2009
Current
Potential
60
63
Property Type
Flat
Built Form
End-Terrace
Constructed
before 1900
+
Certificate History
16 Jul 2009
60
63
Total Floor Area
91 sq m
Current CO2 Emissions Level
4.7
Potential CO2 Emissions Level
4.4
CO2 per sq m per Year
52
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
1
Address
29 Twyford Avenue
Date
28 Jul 2021
Current
Potential
78
83
Property Type
House
Built Form
Semi-Detached
Constructed
1900-1929
+
Certificate History
28 Jul 2021
78
83
26 Mar 2010
33
36
Total Floor Area
231 sq m
Current CO2 Emissions Level
4.6
Potential CO2 Emissions Level
3.6
CO2 per sq m per Year
20
Mains Gas Available
Yes
Habitable Rooms
8
Number of Extensions
1
Address
3 Twyford Avenue
Date
27 Apr 2009
Current
Potential
63
66
Property Type
House
Built Form
Semi-Detached
Constructed
1900-1929
+
Certificate History
27 Apr 2009
63
66
Total Floor Area
321 sq m
Current CO2 Emissions Level
11.0
Potential CO2 Emissions Level
11.0
CO2 per sq m per Year
37
Mains Gas Available
Yes
Habitable Rooms
8
Number of Extensions
1
Address
33a Twyford Avenue
Date
18 Jun 2023
Current
Potential
60
71
Property Type
Maisonette
Built Form
Detached
Constructed
1900-1929
+
Certificate History
18 Jun 2023
60
71
Total Floor Area
202 sq m
Current CO2 Emissions Level
7.4
Potential CO2 Emissions Level
5.3
CO2 per sq m per Year
37
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
5 Twyford Avenue
Date
13 Jun 2013
Current
Potential
77
81
Property Type
House
Built Form
Semi-Detached
Constructed
1900-1929
+
Certificate History
13 Jun 2013
77
81
25 Nov 2011
58
59
Total Floor Area
293 sq m
Current CO2 Emissions Level
6.3
Potential CO2 Emissions Level
5.3
CO2 per sq m per Year
22
Mains Gas Available
Yes
Habitable Rooms
11
Number of Extensions
2
Address
7 Twyford Avenue
Date
15 Apr 2015
Current
Potential
80
83
Property Type
House
Built Form
Semi-Detached
Constructed
1900-1929
+
Certificate History
15 Apr 2015
80
83
8 Feb 2010
27
51
Total Floor Area
303 sq m
Current CO2 Emissions Level
5.3
Potential CO2 Emissions Level
4.4
CO2 per sq m per Year
17
Mains Gas Available
Yes
Habitable Rooms
11
Number of Extensions
1
Address
Flat 1, 17 Twyford Avenue
Date
8 Dec 2021
Current
Potential
49
74
Property Type
Flat
Built Form
End-Terrace
Constructed
1900-1929
+
Certificate History
8 Dec 2021
49
74
17 Nov 2008
73
74
Total Floor Area
41 sq m
Current CO2 Emissions Level
3.4
Potential CO2 Emissions Level
1.3
CO2 per sq m per Year
82
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
Flat 1, 31, Twyford Avenue
Date
14 Jan 2016
Current
Potential
61
75
Property Type
Flat
Built Form
Semi-Detached
Constructed
1900-1929
+
Certificate History
14 Jan 2016
61
75
21 Sep 2009
25
27
Total Floor Area
42 sq m
Current CO2 Emissions Level
2.4
Potential CO2 Emissions Level
1.3
CO2 per sq m per Year
57
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
Flat 2, 17 Twyford Avenue
Date
21 Dec 2021
Current
Potential
66
76
Property Type
Flat
Built Form
Enclosed End-Terrace
Constructed
1900-1929
+
Certificate History
21 Dec 2021
66
76
17 Nov 2008
70
71
Total Floor Area
53 sq m
Current CO2 Emissions Level
2.4
Potential CO2 Emissions Level
1.4
CO2 per sq m per Year
45
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
Flat 2, 23 Twyford Avenue
Date
1 May 2018
Current
Potential
65
73
Property Type
Flat
Built Form
Semi-Detached
Constructed
1900-1929
+
Certificate History
1 May 2018
65
73
Total Floor Area
84 sq m
Current CO2 Emissions Level
3.3
Potential CO2 Emissions Level
2.4
CO2 per sq m per Year
40
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
1
Address
Flat 4, 17 Twyford Avenue
Date
28 Sep 2023
Current
Potential
76
80
Property Type
Flat
Built Form
Semi-Detached
Constructed
1900-1929
+
Certificate History
28 Sep 2023
76
80
14 Oct 2009
75
77
Total Floor Area
40 sq m
Current CO2 Emissions Level
1.2
Potential CO2 Emissions Level
0.8
CO2 per sq m per Year
30
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
Flat 5, 17 Twyford Avenue
Date
24 Aug 2016
Current
Potential
63
73
Property Type
Flat
Built Form
Semi-Detached
Constructed
1900-1929
+
Certificate History
24 Aug 2016
63
73
Total Floor Area
61 sq m
Current CO2 Emissions Level
2.9
Potential CO2 Emissions Level
1.9
CO2 per sq m per Year
47
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
1
Address
Ground Floor Flat, 27 Twyford Avenue
Date
9 Dec 2010
Current
Potential
64
64
Property Type
Flat
Built Form
N/A
Constructed
1900-1929
+
Certificate History
9 Dec 2010
64
64
Total Floor Area
82 sq m
Current CO2 Emissions Level
4.1
Potential CO2 Emissions Level
4.1
CO2 per sq m per Year
50
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
Ground Floor Flat, 33 Twyford Avenue
Date
18 Jun 2023
Current
Potential
56
72
Property Type
Maisonette
Built Form
Detached
Constructed
1900-1929
+
Certificate History
18 Jun 2023
56
72
9 Aug 2009
50
57
Total Floor Area
149 sq m
Current CO2 Emissions Level
6.4
Potential CO2 Emissions Level
3.8
CO2 per sq m per Year
43
Mains Gas Available
Yes
Habitable Rooms
5
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.