PROPERTY ENERGY EFFICIENCY CERTIFICATE DETAILS
Twickenham Road, ISLEWORTH, TW7 7DZ
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 Twickenham Road, TW7 7DZ 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 Twickenham Road, ISLEWORTH, TW7 7DZ
Period Covered:
2008 - 31 January 2025
Address
Inspection Date
Current
Potential
Property Type
Built Form
Constructed
Address
455 Twickenham Road
Date
30 May 2017
Current
Potential
61
78
Property Type
Maisonette
Built Form
Mid-Terrace
Constructed
1950-1966
Certificate History
30 May 2017
61
78
Total Floor Area
69 sq m
Current CO2 Emissions Level
3.4
Potential CO2 Emissions Level
1.6
CO2 per sq m per Year
49
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
459 Twickenham Road
Date
13 Jun 2011
Current
Potential
68
75
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1950-1966
Certificate History
13 Jun 2011
68
75
Total Floor Area
68 sq m
Current CO2 Emissions Level
2.7
Potential CO2 Emissions Level
1.9
CO2 per sq m per Year
40
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
461 Twickenham Road
Date
30 May 2023
Current
Potential
67
70
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1967-1975
Certificate History
30 May 2023
67
70
18 Oct 2012
59
64
Total Floor Area
67 sq m
Current CO2 Emissions Level
2.7
Potential CO2 Emissions Level
2.4
CO2 per sq m per Year
40
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
463 Twickenham Road
Date
4 Dec 2013
Current
Potential
39
54
Property Type
Flat
Built Form
End-Terrace
Constructed
1950-1966
Certificate History
4 Dec 2013
39
54
Total Floor Area
63 sq m
Current CO2 Emissions Level
7.0
Potential CO2 Emissions Level
6.2
CO2 per sq m per Year
112
Mains Gas Available
No
Habitable Rooms
4
Number of Extensions
0
Address
467 Twickenham Road
Date
3 Jan 2016
Current
Potential
54
71
Property Type
Flat
Built Form
End-Terrace
Constructed
1967-1975
Certificate History
3 Jan 2016
54
71
3 Jan 2016
59
71
3 Jan 2016
67
71
3 Jan 2016
63
71
22 Jul 2014
54
73
Total Floor Area
73 sq m
Current CO2 Emissions Level
4.3
Potential CO2 Emissions Level
2.3
CO2 per sq m per Year
59
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
469 Twickenham Road
Date
27 Mar 2016
Current
Potential
74
76
Property Type
Maisonette
Built Form
End-Terrace
Constructed
1950-1966
Certificate History
27 Mar 2016
74
76
3 Jan 2016
68
72
3 Jan 2016
58
72
3 Jan 2016
71
72
3 Jan 2016
63
72
7 Dec 2011
68
70
Total Floor Area
61 sq m
Current CO2 Emissions Level
1.7
Potential CO2 Emissions Level
1.6
CO2 per sq m per Year
28
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
471 Twickenham Road
Date
16 Aug 2020
Current
Potential
75
78
Property Type
Maisonette
Built Form
Mid-Terrace
Constructed
1967-1975
Certificate History
16 Aug 2020
75
78
7 Jul 2016
26
56
Total Floor Area
66 sq m
Current CO2 Emissions Level
1.9
Potential CO2 Emissions Level
1.5
CO2 per sq m per Year
29
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
473 Twickenham Road
Date
23 Apr 2023
Current
Potential
75
78
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1950-1966
Certificate History
23 Apr 2023
75
78
Total Floor Area
63 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
3
Number of Extensions
0
Address
475 Twickenham Road
Date
25 Aug 2020
Current
Potential
57
75
Property Type
Maisonette
Built Form
Mid-Terrace
Constructed
1950-1966
Certificate History
25 Aug 2020
57
75
Total Floor Area
48 sq m
Current CO2 Emissions Level
2.9
Potential CO2 Emissions Level
1.4
CO2 per sq m per Year
60
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
479 Twickenham Road
Date
4 Aug 2020
Current
Potential
72
77
Property Type
Maisonette
Built Form
End-Terrace
Constructed
1930-1949
Certificate History
4 Aug 2020
72
77
6 Apr 2010
52
62
Total Floor Area
67 sq m
Current CO2 Emissions Level
2.1
Potential CO2 Emissions Level
1.6
CO2 per sq m per Year
32
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
483 Twickenham Road
Date
2 Aug 2015
Current
Potential
66
75
Property Type
Maisonette
Built Form
Semi-Detached
Constructed
1967-1975
Certificate History
2 Aug 2015
66
75
Total Floor Area
65 sq m
Current CO2 Emissions Level
2.7
Potential CO2 Emissions Level
1.8
CO2 per sq m per Year
42
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
485 Twickenham Road
Date
7 Apr 2010
Current
Potential
42
54
Property Type
Flat
Built Form
Enclosed Mid-Terrace
Constructed
1950-1966
Certificate History
7 Apr 2010
42
54
Total Floor Area
65 sq m
Current CO2 Emissions Level
5.9
Potential CO2 Emissions Level
4.5
CO2 per sq m per Year
90
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
487 Twickenham Road
Date
23 Aug 2021
Current
Potential
62
67
Property Type
Maisonette
Built Form
Mid-Terrace
Constructed
1967-1975
Certificate History
23 Aug 2021
62
67
Total Floor Area
67 sq m
Current CO2 Emissions Level
3.2
Potential CO2 Emissions Level
2.7
CO2 per sq m per Year
48
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
489 Twickenham Road
Date
17 Sep 2024
Current
Potential
73
77
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1950-1966
Certificate History
17 Sep 2024
73
77
7 Mar 2009
69
81
Total Floor Area
65 sq m
Current CO2 Emissions Level
2.0
Potential CO2 Emissions Level
1.5
CO2 per sq m per Year
31
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
491 Twickenham Road
Date
14 Apr 2015
Current
Potential
70
77
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1967-1975
Certificate History
14 Apr 2015
70
77
Total Floor Area
66 sq m
Current CO2 Emissions Level
2.3
Potential CO2 Emissions Level
1.6
CO2 per sq m per Year
35
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
495 TWICKENHAM ROAD
Date
27 Jul 2021
Current
Potential
62
67
Property Type
Flat
Built Form
Semi-Detached
Constructed
1967-1975
Certificate History
27 Jul 2021
62
67
Total Floor Area
67 sq m
Current CO2 Emissions Level
3.2
Potential CO2 Emissions Level
2.7
CO2 per sq m per Year
48
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
495 Twickenham Road
Date
24 Mar 2010
Current
Potential
75
80
Property Type
Maisonette
Built Form
Mid-Terrace
Constructed
1983-1990
Certificate History
24 Mar 2010
75
80
Total Floor Area
68 sq m
Current CO2 Emissions Level
2.3
Potential CO2 Emissions Level
1.9
CO2 per sq m per Year
33
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
497 Twickenham Road
Date
14 Jun 2023
Current
Potential
71
77
Property Type
Maisonette
Built Form
End-Terrace
Constructed
1967-1975
Certificate History
14 Jun 2023
71
77
17 Mar 2010
63
78
Total Floor Area
69 sq m
Current CO2 Emissions Level
2.3
Potential CO2 Emissions Level
1.7
CO2 per sq m per Year
34
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
499 Twickenham Road
Date
17 Dec 2015
Current
Potential
66
73
Property Type
Flat
Built Form
End-Terrace
Constructed
1967-1975
Certificate History
17 Dec 2015
66
73
10 Dec 2015
58
73
Total Floor Area
80 sq m
Current CO2 Emissions Level
3.1
Potential CO2 Emissions Level
2.2
CO2 per sq m per Year
39
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
501 Twickenham Road
Date
17 Dec 2015
Current
Potential
69
75
Property Type
Flat
Built Form
End-Terrace
Constructed
1967-1975
Certificate History
17 Dec 2015
69
75
10 Dec 2015
60
75
28 Sep 2009
63
79
Total Floor Area
80 sq m
Current CO2 Emissions Level
2.8
Potential CO2 Emissions Level
2.1
CO2 per sq m per Year
35
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
505 Twickenham Road
Date
30 Sep 2018
Current
Potential
66
75
Property Type
Flat
Built Form
End-Terrace
Constructed
1950-1966
Certificate History
30 Sep 2018
66
75
Total Floor Area
66 sq m
Current CO2 Emissions Level
2.8
Potential CO2 Emissions Level
1.8
CO2 per sq m per Year
42
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
507 Twickenham Road
Date
14 Jan 2016
Current
Potential
68
76
Property Type
Maisonette
Built Form
Semi-Detached
Constructed
1967-1975
Certificate History
14 Jan 2016
68
76
Total Floor Area
66 sq m
Current CO2 Emissions Level
2.6
Potential CO2 Emissions Level
1.8
CO2 per sq m per Year
39
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.