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PROPERTY ENERGY EFFICIENCY CERTIFICATE DETAILS
Dawes Avenue, ISLEWORTH, TW7 7JU

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 Dawes Avenue, TW7 7JU 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 Dawes Avenue, ISLEWORTH, TW7 7JU
Period Covered: 2008 - 31 January 2025

Address
Inspection Date
Current
Potential
Property Type
Built Form
Constructed
Address
1 Dawes Avenue
Date
31 Jan 2019
Current
Potential
64
80
Property Type
House
Built Form
Semi-Detached
Constructed
1930-1949
+
Certificate History
31 Jan 2019
64
80
7 Dec 2015
56
81
Total Floor Area
106 sq m
Current CO2 Emissions Level
4.0
Potential CO2 Emissions Level
2.0
CO2 per sq m per Year
38
Mains Gas Available
Yes
Habitable Rooms
7
Number of Extensions
2
Address
13 Dawes Avenue
Date
16 Apr 2013
Current
Potential
54
84
Property Type
House
Built Form
Mid-Terrace
Constructed
1930-1949
+
Certificate History
16 Apr 2013
54
84
Total Floor Area
95 sq m
Current CO2 Emissions Level
5.1
Potential CO2 Emissions Level
1.5
CO2 per sq m per Year
53
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
1
Address
17 Dawes Avenue
Date
8 Dec 2023
Current
Potential
8
86
Property Type
House
Built Form
Semi-Detached
Constructed
1930-1949
+
Certificate History
8 Dec 2023
8
86
Total Floor Area
88 sq m
Current CO2 Emissions Level
8.7
Potential CO2 Emissions Level
2.5
CO2 per sq m per Year
99
Mains Gas Available
No
Habitable Rooms
6
Number of Extensions
0
Address
19 Dawes Avenue
Date
14 Jun 2009
Current
Potential
56
61
Property Type
House
Built Form
Semi-Detached
Constructed
1930-1949
+
Certificate History
14 Jun 2009
56
61
Total Floor Area
118 sq m
Current CO2 Emissions Level
6.4
Potential CO2 Emissions Level
5.6
CO2 per sq m per Year
54
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
21 Dawes Avenue
Date
25 May 2021
Current
Potential
71
86
Property Type
House
Built Form
End-Terrace
Constructed
1930-1949
+
Certificate History
25 May 2021
71
86
29 Oct 2019
51
81
Total Floor Area
82 sq m
Current CO2 Emissions Level
2.6
Potential CO2 Emissions Level
1.1
CO2 per sq m per Year
31
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
23 Dawes Avenue
Date
28 Aug 2009
Current
Potential
61
67
Property Type
House
Built Form
Semi-Detached
Constructed
1930-1949
+
Certificate History
28 Aug 2009
61
67
Total Floor Area
90 sq m
Current CO2 Emissions Level
4.6
Potential CO2 Emissions Level
4.0
CO2 per sq m per Year
51
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
2
Address
3 Dawes Avenue
Date
25 May 2021
Current
Potential
71
86
Property Type
House
Built Form
End-Terrace
Constructed
1930-1949
+
Certificate History
25 May 2021
71
86
Total Floor Area
82 sq m
Current CO2 Emissions Level
2.6
Potential CO2 Emissions Level
1.1
CO2 per sq m per Year
32
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
3 DAWES AVENUE, ISLEWORTH
Date
28 Jul 2020
Current
Potential
54
81
Property Type
House
Built Form
End-Terrace
Constructed
1930-1949
+
Certificate History
28 Jul 2020
54
81
Total Floor Area
82 sq m
Current CO2 Emissions Level
4.6
Potential CO2 Emissions Level
1.8
CO2 per sq m per Year
56
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
35 Dawes Avenue
Date
24 Sep 2014
Current
Potential
69
82
Property Type
House
Built Form
Semi-Detached
Constructed
1900-1929
+
Certificate History
24 Sep 2014
69
82
Total Floor Area
98 sq m
Current CO2 Emissions Level
3.3
Potential CO2 Emissions Level
1.9
CO2 per sq m per Year
34
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
7 Dawes Avenue
Date
29 Nov 2011
Current
Potential
57
58
Property Type
House
Built Form
Semi-Detached
Constructed
1930-1949
+
Certificate History
29 Nov 2011
57
58
Total Floor Area
86 sq m
Current CO2 Emissions Level
4.2
Potential CO2 Emissions Level
4.1
CO2 per sq m per Year
56
Mains Gas Available
Yes
Habitable Rooms
3
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.