PROPERTY ENERGY EFFICIENCY CERTIFICATE DETAILS
Harlech Gardens, HOUNSLOW, TW5 9PT
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 Harlech Gardens, TW5 9PT 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 Harlech Gardens, HOUNSLOW, TW5 9PT
Period Covered:
2008 - 31 January 2025
Address
Inspection Date
Current
Potential
Property Type
Built Form
Constructed
Address
104 Harlech Gardens
Date
7 Oct 2012
Current
Potential
71
71
Property Type
Flat
Built Form
End-Terrace
Constructed
1967-1975
Certificate History
7 Oct 2012
71
71
Total Floor Area
71 sq m
Current CO2 Emissions Level
2.4
Potential CO2 Emissions Level
2.4
CO2 per sq m per Year
34
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
105 Harlech Gardens
Date
4 Dec 2010
Current
Potential
74
77
Property Type
Flat
Built Form
Semi-Detached
Constructed
1950-1966
Certificate History
4 Dec 2010
74
77
Total Floor Area
68 sq m
Current CO2 Emissions Level
2.4
Potential CO2 Emissions Level
2.2
CO2 per sq m per Year
35
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
106 Harlech Gardens
Date
25 Jul 2018
Current
Potential
73
79
Property Type
Flat
Built Form
Detached
Constructed
1950-1966
Certificate History
25 Jul 2018
73
79
Total Floor Area
69 sq m
Current CO2 Emissions Level
2.1
Potential CO2 Emissions Level
1.5
CO2 per sq m per Year
31
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
108 Harlech Gardens
Date
19 Jul 2012
Current
Potential
69
71
Property Type
Flat
Built Form
Detached
Constructed
1950-1966
Certificate History
19 Jul 2012
69
71
Total Floor Area
70 sq m
Current CO2 Emissions Level
2.5
Potential CO2 Emissions Level
2.3
CO2 per sq m per Year
36
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
109 Harlech Gardens
Date
29 Apr 2014
Current
Potential
80
80
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1976-1982
Certificate History
29 Apr 2014
80
80
Total Floor Area
70 sq m
Current CO2 Emissions Level
1.4
Potential CO2 Emissions Level
1.4
CO2 per sq m per Year
19
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
112 Harlech Gardens
Date
3 Oct 2019
Current
Potential
76
80
Property Type
Flat
Built Form
Semi-Detached
Constructed
1950-1966
Certificate History
3 Oct 2019
76
80
Total Floor Area
71 sq m
Current CO2 Emissions Level
1.8
Potential CO2 Emissions Level
1.5
CO2 per sq m per Year
25
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
113 Harlech Gardens
Date
26 Mar 2014
Current
Potential
73
77
Property Type
Flat
Built Form
End-Terrace
Constructed
1976-1982
Certificate History
26 Mar 2014
73
77
9 Jun 2010
65
67
Total Floor Area
71 sq m
Current CO2 Emissions Level
2.1
Potential CO2 Emissions Level
1.7
CO2 per sq m per Year
30
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
114 Harlech Gardens
Date
22 Feb 2017
Current
Potential
79
80
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1967-1975
Certificate History
22 Feb 2017
79
80
Total Floor Area
71 sq m
Current CO2 Emissions Level
1.5
Potential CO2 Emissions Level
1.4
CO2 per sq m per Year
21
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
116 HARLECH GARDENS, HOUNSLOW
Date
13 Apr 2021
Current
Potential
82
83
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1950-1966
Certificate History
13 Apr 2021
82
83
Total Floor Area
70 sq m
Current CO2 Emissions Level
1.2
Potential CO2 Emissions Level
1.1
CO2 per sq m per Year
18
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
118 Harlech Gardens
Date
6 Oct 2014
Current
Potential
61
77
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1950-1966
Certificate History
6 Oct 2014
61
77
Total Floor Area
76 sq m
Current CO2 Emissions Level
3.5
Potential CO2 Emissions Level
1.9
CO2 per sq m per Year
46
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
119 Harlech Gardens
Date
5 Mar 2020
Current
Potential
75
76
Property Type
Flat
Built Form
Detached
Constructed
1950-1966
Certificate History
5 Mar 2020
75
76
Total Floor Area
68 sq m
Current CO2 Emissions Level
1.9
Potential CO2 Emissions Level
1.8
CO2 per sq m per Year
29
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
121 Harlech Gardens
Date
10 Oct 2010
Current
Potential
72
73
Property Type
Flat
Built Form
Semi-Detached
Constructed
1950-1966
Certificate History
10 Oct 2010
72
73
Total Floor Area
71 sq m
Current CO2 Emissions Level
2.7
Potential CO2 Emissions Level
2.7
CO2 per sq m per Year
39
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
123 Harlech Gardens
Date
7 Aug 2023
Current
Potential
75
79
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1950-1966
Certificate History
7 Aug 2023
75
79
24 Sep 2013
73
73
Total Floor Area
69 sq m
Current CO2 Emissions Level
2.0
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
124 Harlech Gardens
Date
31 Mar 2014
Current
Potential
75
77
Property Type
Flat
Built Form
Enclosed End-Terrace
Constructed
1950-1966
Certificate History
31 Mar 2014
75
77
Total Floor Area
61 sq m
Current CO2 Emissions Level
1.6
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
126 Harlech Gardens
Date
24 Oct 2024
Current
Potential
80
80
Property Type
Flat
Built Form
Detached
Constructed
2003-2006
Certificate History
24 Oct 2024
80
80
8 Oct 2014
57
70
2 Oct 2013
77
79
22 Oct 2009
72
74
18 Jul 2009
68
71
Total Floor Area
69 sq m
Current CO2 Emissions Level
1.4
Potential CO2 Emissions Level
1.4
CO2 per sq m per Year
20
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
129 Harlech Gardens
Date
22 Aug 2017
Current
Potential
75
79
Property Type
Flat
Built Form
Detached
Constructed
1950-1966
Certificate History
22 Aug 2017
75
79
Total Floor Area
71 sq m
Current CO2 Emissions Level
1.9
Potential CO2 Emissions Level
1.5
CO2 per sq m per Year
27
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
130 Harlech Gardens
Date
2 Jul 2020
Current
Potential
78
78
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1983-1990
Certificate History
2 Jul 2020
78
78
15 Dec 2009
83
85
Total Floor Area
63 sq m
Current CO2 Emissions Level
1.5
Potential CO2 Emissions Level
1.5
CO2 per sq m per Year
24
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
131 Harlech Gardens
Date
5 Sep 2021
Current
Potential
66
73
Property Type
Flat
Built Form
Detached
Constructed
1967-1975
Certificate History
5 Sep 2021
66
73
Total Floor Area
72 sq m
Current CO2 Emissions Level
3.0
Potential CO2 Emissions Level
2.3
CO2 per sq m per Year
42
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
132 Harlech Gardens
Date
15 Sep 2023
Current
Potential
78
78
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1983-1990
Certificate History
15 Sep 2023
78
78
16 May 2009
52
52
Total Floor Area
63 sq m
Current CO2 Emissions Level
1.5
Potential CO2 Emissions Level
1.5
CO2 per sq m per Year
24
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
134 Harlech Gardens
Date
30 Jun 2013
Current
Potential
76
76
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1983-1990
Certificate History
30 Jun 2013
76
76
Total Floor Area
70 sq m
Current CO2 Emissions Level
1.8
Potential CO2 Emissions Level
1.8
CO2 per sq m per Year
26
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
135 Harlech Gardens
Date
24 Feb 2016
Current
Potential
56
58
Property Type
Flat
Built Form
End-Terrace
Constructed
1930-1949
Certificate History
24 Feb 2016
56
58
27 May 2015
70
71
Total Floor Area
69 sq m
Current CO2 Emissions Level
3.9
Potential CO2 Emissions Level
3.7
CO2 per sq m per Year
57
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
136 Harlech Gardens
Date
19 Sep 2022
Current
Potential
71
74
Property Type
Flat
Built Form
Detached
Constructed
1991-1995
Certificate History
19 Sep 2022
71
74
29 Sep 2010
33
36
Total Floor Area
70 sq m
Current CO2 Emissions Level
2.3
Potential CO2 Emissions Level
2.0
CO2 per sq m per Year
34
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
138 Harlech Gardens
Date
16 Jun 2014
Current
Potential
73
73
Property Type
Flat
Built Form
Detached
Constructed
1967-1975
Certificate History
16 Jun 2014
73
73
Total Floor Area
69 sq m
Current CO2 Emissions Level
2.1
Potential CO2 Emissions Level
2.1
CO2 per sq m per Year
31
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
140 Harlech Gardens
Date
31 Oct 2012
Current
Potential
74
74
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1967-1975
Certificate History
31 Oct 2012
74
74
Total Floor Area
73 sq m
Current CO2 Emissions Level
2.1
Potential CO2 Emissions Level
2.1
CO2 per sq m per Year
28
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
141 Harlech Gardens
Date
22 Mar 2024
Current
Potential
74
76
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1967-1975
Certificate History
22 Mar 2024
74
76
14 Apr 2014
70
78
Total Floor Area
56 sq m
Current CO2 Emissions Level
1.7
Potential CO2 Emissions Level
1.6
CO2 per sq m per Year
30
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
142 Harlech Gardens
Date
6 Oct 2014
Current
Potential
58
73
Property Type
Flat
Built Form
End-Terrace
Constructed
1950-1966
Certificate History
6 Oct 2014
58
73
29 Apr 2014
73
73
Total Floor Area
76 sq m
Current CO2 Emissions Level
3.9
Potential CO2 Emissions Level
2.3
CO2 per sq m per Year
51
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
143 Harlech Gardens
Date
6 Oct 2014
Current
Potential
53
67
Property Type
Flat
Built Form
End-Terrace
Constructed
1950-1966
Certificate History
6 Oct 2014
53
67
Total Floor Area
76 sq m
Current CO2 Emissions Level
4.5
Potential CO2 Emissions Level
2.9
CO2 per sq m per Year
59
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
144 Harlech Gardens
Date
3 May 2022
Current
Potential
76
78
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1976-1982
Certificate History
3 May 2022
76
78
Total Floor Area
70 sq m
Current CO2 Emissions Level
1.8
Potential CO2 Emissions Level
1.6
CO2 per sq m per Year
26
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
147 Harlech Gardens
Date
12 Jun 2022
Current
Potential
80
80
Property Type
Flat
Built Form
Detached
Constructed
1950-1966
Certificate History
12 Jun 2022
80
80
12 Aug 2009
73
75
Total Floor Area
69 sq m
Current CO2 Emissions Level
1.4
Potential CO2 Emissions Level
1.3
CO2 per sq m per Year
20
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
1
Address
148 Harlech Gardens
Date
10 Sep 2009
Current
Potential
78
80
Property Type
Flat
Built Form
Semi-Detached
Constructed
1950-1966
Certificate History
10 Sep 2009
78
80
Total Floor Area
71 sq m
Current CO2 Emissions Level
2.0
Potential CO2 Emissions Level
2.0
CO2 per sq m per Year
29
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
150 Harlech Gardens
Date
4 Feb 2020
Current
Potential
75
79
Property Type
Flat
Built Form
Semi-Detached
Constructed
1950-1966
Certificate History
4 Feb 2020
75
79
Total Floor Area
68 sq m
Current CO2 Emissions Level
1.9
Potential CO2 Emissions Level
1.5
CO2 per sq m per Year
28
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
151 Harlech Gardens
Date
7 Oct 2014
Current
Potential
59
72
Property Type
Flat
Built Form
End-Terrace
Constructed
1967-1975
Certificate History
7 Oct 2014
59
72
5 Mar 2012
71
74
Total Floor Area
70 sq m
Current CO2 Emissions Level
3.6
Potential CO2 Emissions Level
2.3
CO2 per sq m per Year
51
Mains Gas Available
Yes
Habitable Rooms
3
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.