PROPERTY ENERGY EFFICIENCY CERTIFICATE DETAILS
Harlech Gardens, HOUNSLOW, TW5 9PU

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 9PU 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 9PU
Period Covered: 2008 - 31 October 2024

Address
Inspection Date
Current
Potential
Property Type
Built Form
Constructed
Address
171 Harlech Gardens
Date
9 Apr 2024
Current
Potential
76
76
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1976-1982
+
Certificate History
9 Apr 2024
76
76
Total Floor Area
72 sq m
Current CO2 Emissions Level
1.8
Potential CO2 Emissions Level
1.8
CO2 per sq m per Year
25
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
182 Harlech Gardens
Date
2 Oct 2024
Current
Potential
76
76
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1976-1982
+
Certificate History
2 Oct 2024
76
76
Total Floor Area
72 sq m
Current CO2 Emissions Level
1.8
Potential CO2 Emissions Level
1.8
CO2 per sq m per Year
25
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
153 Harlech Gardens
Date
23 Nov 2018
Current
Potential
73
79
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1967-1975
+
Certificate History
23 Nov 2018
73
79
2 Dec 2008
71
77
Total Floor Area
72 sq m
Current CO2 Emissions Level
2.1
Potential CO2 Emissions Level
1.5
CO2 per sq m per Year
30
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
154 Harlech Gardens
Date
9 Nov 2015
Current
Potential
73
73
Property Type
Maisonette
Built Form
Mid-Terrace
Constructed
1950-1966
+
Certificate History
9 Nov 2015
73
73
Total Floor Area
72 sq m
Current CO2 Emissions Level
2.2
Potential CO2 Emissions Level
2.2
CO2 per sq m per Year
30
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
1
Address
155 Harlech Gardens
Date
12 Sep 2023
Current
Potential
75
75
Property Type
Maisonette
Built Form
Mid-Terrace
Constructed
1967-1975
+
Certificate History
12 Sep 2023
75
75
11 May 2010
78
78
Total Floor Area
72 sq m
Current CO2 Emissions Level
2.0
Potential CO2 Emissions Level
2.0
CO2 per sq m per Year
28
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
1
Address
157 HARLECH GARDENS
Date
28 Jul 2021
Current
Potential
70
75
Property Type
Maisonette
Built Form
End-Terrace
Constructed
1967-1975
+
Certificate History
28 Jul 2021
70
75
Total Floor Area
67 sq m
Current CO2 Emissions Level
2.4
Potential CO2 Emissions Level
1.9
CO2 per sq m per Year
36
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
157 Harlech Gardens
Date
7 May 2011
Current
Potential
66
68
Property Type
Maisonette
Built Form
End-Terrace
Constructed
1967-1975
+
Certificate History
7 May 2011
66
68
Total Floor Area
71 sq m
Current CO2 Emissions Level
3.0
Potential CO2 Emissions Level
2.9
CO2 per sq m per Year
42
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
158 Harlech Gardens
Date
9 Feb 2024
Current
Potential
67
67
Property Type
Flat
Built Form
End-Terrace
Constructed
1950-1966
+
Certificate History
9 Feb 2024
67
67
7 Oct 2014
62
70
Total Floor Area
71 sq m
Current CO2 Emissions Level
2.8
Potential CO2 Emissions Level
2.8
CO2 per sq m per Year
39
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
159 Harlech Gardens
Date
20 Oct 2015
Current
Potential
77
79
Property Type
Maisonette
Built Form
Mid-Terrace
Constructed
1996-2002
+
Certificate History
20 Oct 2015
77
79
Total Floor Area
69 sq m
Current CO2 Emissions Level
1.7
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
161 Harlech Gardens
Date
6 Oct 2014
Current
Potential
60
69
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1950-1966
+
Certificate History
6 Oct 2014
60
69
Total Floor Area
67 sq m
Current CO2 Emissions Level
3.4
Potential CO2 Emissions Level
2.6
CO2 per sq m per Year
51
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
162 Harlech Gardens
Date
23 Mar 2020
Current
Potential
79
79
Property Type
Maisonette
Built Form
Mid-Terrace
Constructed
1967-1975
+
Certificate History
23 Mar 2020
79
79
Total Floor Area
72 sq m
Current CO2 Emissions Level
1.5
Potential CO2 Emissions Level
1.5
CO2 per sq m per Year
21
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
1
Address
163 Harlech Gardens
Date
6 Oct 2014
Current
Potential
61
69
Property Type
Flat
Built Form
End-Terrace
Constructed
1950-1966
+
Certificate History
6 Oct 2014
61
69
Total Floor Area
67 sq m
Current CO2 Emissions Level
3.3
Potential CO2 Emissions Level
2.6
CO2 per sq m per Year
50
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
164 Harlech Gardens
Date
25 Aug 2016
Current
Potential
64
77
Property Type
Maisonette
Built Form
Semi-Detached
Constructed
1967-1975
+
Certificate History
25 Aug 2016
64
77
Total Floor Area
72 sq m
Current CO2 Emissions Level
3.2
Potential CO2 Emissions Level
1.8
CO2 per sq m per Year
45
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
165 Harlech Gardens
Date
29 Oct 2008
Current
Potential
65
75
Property Type
Flat
Built Form
Enclosed Mid-Terrace
Constructed
1950-1966
+
Certificate History
29 Oct 2008
65
75
Total Floor Area
70 sq m
Current CO2 Emissions Level
3.5
Potential CO2 Emissions Level
2.4
CO2 per sq m per Year
49
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
166 Harlech Gardens
Date
3 Nov 2014
Current
Potential
57
73
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1950-1966
+
Certificate History
3 Nov 2014
57
73
Total Floor Area
66 sq m
Current CO2 Emissions Level
3.7
Potential CO2 Emissions Level
2.1
CO2 per sq m per Year
57
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
169 Harlech Gardens
Date
24 Nov 2023
Current
Potential
72
78
Property Type
Maisonette
Built Form
End-Terrace
Constructed
1976-1982
+
Certificate History
24 Nov 2023
72
78
13 Nov 2013
71
81
16 Jun 2010
67
80
Total Floor Area
73 sq m
Current CO2 Emissions Level
2.3
Potential CO2 Emissions Level
1.7
CO2 per sq m per Year
32
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
171 Harlech Gardens
Date
6 Oct 2014
Current
Potential
66
75
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1950-1966
+
Certificate History
6 Oct 2014
66
75
Total Floor Area
67 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
3
Number of Extensions
0
Address
173 Harlech Gardens
Date
7 Oct 2014
Current
Potential
60
70
Property Type
Flat
Built Form
End-Terrace
Constructed
1967-1975
+
Certificate History
7 Oct 2014
60
70
Total Floor Area
69 sq m
Current CO2 Emissions Level
3.4
Potential CO2 Emissions Level
2.4
CO2 per sq m per Year
49
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
174 Harlech Gardens
Date
7 Oct 2014
Current
Potential
67
75
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1967-1975
+
Certificate History
7 Oct 2014
67
75
Total Floor Area
69 sq m
Current CO2 Emissions Level
2.7
Potential CO2 Emissions Level
1.8
CO2 per sq m per Year
40
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
175 Harlech Gardens
Date
13 Sep 2016
Current
Potential
62
62
Property Type
Flat
Built Form
Semi-Detached
Constructed
1950-1966
+
Certificate History
13 Sep 2016
62
62
Total Floor Area
73 sq m
Current CO2 Emissions Level
3.5
Potential CO2 Emissions Level
3.5
CO2 per sq m per Year
48
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
1
Address
180 Harlech Gardens
Date
7 Jul 2022
Current
Potential
78
79
Property Type
Maisonette
Built Form
Mid-Terrace
Constructed
1950-1966
+
Certificate History
7 Jul 2022
78
79
Total Floor Area
72 sq m
Current CO2 Emissions Level
1.6
Potential CO2 Emissions Level
1.5
CO2 per sq m per Year
22
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
184 Harlech Gardens
Date
17 Sep 2014
Current
Potential
66
74
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1950-1966
+
Certificate History
17 Sep 2014
66
74
Total Floor Area
67 sq m
Current CO2 Emissions Level
2.7
Potential CO2 Emissions Level
2.0
CO2 per sq m per Year
41
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
185 HARLECH GARDENS, HOUNSLOW
Date
2 Aug 2020
Current
Potential
70
72
Property Type
Maisonette
Built Form
Mid-Terrace
Constructed
1950-1966
+
Certificate History
2 Aug 2020
70
72
Total Floor Area
73 sq m
Current CO2 Emissions Level
2.6
Potential CO2 Emissions Level
2.3
CO2 per sq m per Year
36
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
1
Address
186 Harlech Gardens
Date
17 Sep 2014
Current
Potential
66
75
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1950-1966
+
Certificate History
17 Sep 2014
66
75
3 Nov 2010
80
81
Total Floor Area
67 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
3
Number of Extensions
0
Address
187 Harlech Gardens
Date
23 Jun 2015
Current
Potential
73
74
Property Type
Maisonette
Built Form
Mid-Terrace
Constructed
1950-1966
+
Certificate History
23 Jun 2015
73
74
Total Floor Area
73 sq m
Current CO2 Emissions Level
2.2
Potential CO2 Emissions Level
2.1
CO2 per sq m per Year
30
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
1
Address
188 Harlech Gardens
Date
24 Aug 2022
Current
Potential
76
76
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1976-1982
+
Certificate History
24 Aug 2022
76
76
Total Floor Area
72 sq m
Current CO2 Emissions Level
1.8
Potential CO2 Emissions Level
1.8
CO2 per sq m per Year
25
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
189 Harlech Gardens
Date
17 Sep 2014
Current
Potential
66
74
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1950-1966
+
Certificate History
17 Sep 2014
66
74
Total Floor Area
67 sq m
Current CO2 Emissions Level
2.8
Potential CO2 Emissions Level
2.0
CO2 per sq m per Year
41
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
190 Harlech Gardens
Date
7 Oct 2014
Current
Potential
62
70
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1967-1975
+
Certificate History
7 Oct 2014
62
70
Total Floor Area
71 sq m
Current CO2 Emissions Level
3.3
Potential CO2 Emissions Level
2.5
CO2 per sq m per Year
47
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
193 Harlech Gardens
Date
18 Mar 2012
Current
Potential
74
74
Property Type
Maisonette
Built Form
Mid-Terrace
Constructed
1967-1975
+
Certificate History
18 Mar 2012
74
74
Total Floor Area
76 sq m
Current CO2 Emissions Level
2.3
Potential CO2 Emissions Level
2.2
CO2 per sq m per Year
30
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
194 Harlech Gardens
Date
7 Oct 2012
Current
Potential
69
75
Property Type
Maisonette
Built Form
Mid-Terrace
Constructed
1967-1975
+
Certificate History
7 Oct 2012
69
75
Total Floor Area
71 sq m
Current CO2 Emissions Level
2.5
Potential CO2 Emissions Level
1.9
CO2 per sq m per Year
36
Mains Gas Available
Yes
Habitable Rooms
1
Number of Extensions
0
Address
196 Harlech Gardens
Date
7 Jun 2017
Current
Potential
65
74
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1950-1966
+
Certificate History
7 Jun 2017
65
74
Total Floor Area
71 sq m
Current CO2 Emissions Level
3.0
Potential CO2 Emissions Level
2.1
CO2 per sq m per Year
42
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
1
Address
197 Harlech Gardens
Date
28 Mar 2014
Current
Potential
73
75
Property Type
Maisonette
Built Form
Mid-Terrace
Constructed
1967-1975
+
Certificate History
28 Mar 2014
73
75
Total Floor Area
66 sq m
Current CO2 Emissions Level
2.0
Potential CO2 Emissions Level
1.9
CO2 per sq m per Year
31
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
198 Harlech Gardens
Date
3 Oct 2018
Current
Potential
63
71
Property Type
Flat
Built Form
End-Terrace
Constructed
1967-1975
+
Certificate History
3 Oct 2018
63
71
Total Floor Area
66 sq m
Current CO2 Emissions Level
3.2
Potential CO2 Emissions Level
2.4
CO2 per sq m per Year
49
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
199 Harlech Gardens
Date
28 Jan 2020
Current
Potential
71
71
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1967-1975
+
Certificate History
28 Jan 2020
71
71
29 Aug 2009
76
83
Total Floor Area
70 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
1
Address
200 Harlech Gardens
Date
27 Jun 2018
Current
Potential
78
78
Property Type
Maisonette
Built Form
Enclosed Mid-Terrace
Constructed
1950-1966
+
Certificate History
27 Jun 2018
78
78
17 Sep 2009
70
75
Total Floor Area
71 sq m
Current CO2 Emissions Level
1.6
Potential CO2 Emissions Level
1.6
CO2 per sq m per Year
22
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
201 Harlech Gardens
Date
21 Nov 2016
Current
Potential
77
78
Property Type
Maisonette
Built Form
Mid-Terrace
Constructed
1950-1966
+
Certificate History
21 Nov 2016
77
78
23 Sep 2014
57
69
21 Dec 2010
79
81
Total Floor Area
71 sq m
Current CO2 Emissions Level
1.8
Potential CO2 Emissions Level
1.6
CO2 per sq m per Year
25
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
1
Address
202 Harlech Gardens
Date
20 Apr 2016
Current
Potential
74
80
Property Type
Maisonette
Built Form
Mid-Terrace
Constructed
1950-1966
+
Certificate History
20 Apr 2016
74
80
23 Sep 2014
64
77
Total Floor Area
71 sq m
Current CO2 Emissions Level
2.0
Potential CO2 Emissions Level
1.4
CO2 per sq m per Year
29
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
203 Harlech Gardens
Date
23 Apr 2018
Current
Potential
73
75
Property Type
Flat
Built Form
End-Terrace
Constructed
1950-1966
+
Certificate History
23 Apr 2018
73
75
25 Apr 2011
55
56
Total Floor Area
72 sq m
Current CO2 Emissions Level
2.2
Potential CO2 Emissions Level
2.0
CO2 per sq m per Year
30
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
206 Harlech Gardens
Date
7 Dec 2017
Current
Potential
66
69
Property Type
Flat
Built Form
Semi-Detached
Constructed
1950-1966
+
Certificate History
7 Dec 2017
66
69
Total Floor Area
53 sq m
Current CO2 Emissions Level
2.4
Potential CO2 Emissions Level
2.1
CO2 per sq m per Year
45
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
1
Address
207 Harlech Gardens
Date
21 Feb 2019
Current
Potential
75
76
Property Type
Maisonette
Built Form
End-Terrace
Constructed
1950-1966
+
Certificate History
21 Feb 2019
75
76
Total Floor Area
72 sq m
Current CO2 Emissions Level
2.0
Potential CO2 Emissions Level
1.9
CO2 per sq m per Year
28
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
208 Harlech Gardens
Date
12 Jul 2016
Current
Potential
71
80
Property Type
Maisonette
Built Form
Mid-Terrace
Constructed
1950-1966
+
Certificate History
12 Jul 2016
71
80
4 May 2009
77
78
Total Floor Area
71 sq m
Current CO2 Emissions Level
2.4
Potential CO2 Emissions Level
1.4
CO2 per sq m per Year
33
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
1
Address
209 Harlech Gardens
Date
2 Mar 2012
Current
Potential
78
81
Property Type
Maisonette
Built Form
Detached
Constructed
1976-1982
+
Certificate History
2 Mar 2012
78
81
Total Floor Area
76 sq m
Current CO2 Emissions Level
1.8
Potential CO2 Emissions Level
1.4
CO2 per sq m per Year
24
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
211 Harlech Gardens
Date
7 Dec 2013
Current
Potential
68
79
Property Type
Maisonette
Built Form
Semi-Detached
Constructed
1967-1975
+
Certificate History
7 Dec 2013
68
79
29 Aug 2009
59
67
Total Floor Area
71 sq m
Current CO2 Emissions Level
2.7
Potential CO2 Emissions Level
1.5
CO2 per sq m per Year
37
Mains Gas Available
Yes
Habitable Rooms
4
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.