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PROPERTY ENERGY EFFICIENCY CERTIFICATE DETAILS
Portsmouth Avenue, THAMES DITTON, KT7 0RU

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 Portsmouth Avenue, KT7 0RU 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 Portsmouth Avenue, THAMES DITTON, KT7 0RU
Period Covered: 2008 - 31 January 2025

Address
Inspection Date
Current
Potential
Property Type
Built Form
Constructed
Address
1 Portsmouth Avenue
Date
21 Nov 2018
Current
Potential
68
82
Property Type
Bungalow
Built Form
Detached
Constructed
1967-1975
+
Certificate History
21 Nov 2018
68
82
Total Floor Area
143 sq m
Current CO2 Emissions Level
4.7
Potential CO2 Emissions Level
2.6
CO2 per sq m per Year
33
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
11 Portsmouth Avenue
Date
3 Aug 2014
Current
Potential
47
76
Property Type
Maisonette
Built Form
Detached
Constructed
before 1900
+
Certificate History
3 Aug 2014
47
76
Total Floor Area
105 sq m
Current CO2 Emissions Level
5.7
Potential CO2 Emissions Level
2.3
CO2 per sq m per Year
55
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
11a Portsmouth Avenue
Date
15 Aug 2016
Current
Potential
72
77
Property Type
Maisonette
Built Form
Semi-Detached
Constructed
1976-1982
+
Certificate History
15 Aug 2016
72
77
Total Floor Area
138 sq m
Current CO2 Emissions Level
3.9
Potential CO2 Emissions Level
3.1
CO2 per sq m per Year
28
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
1
Address
13a Portsmouth Avenue
Date
14 Apr 2015
Current
Potential
86
90
Property Type
House
Built Form
Detached
Constructed
N/A
+
Certificate History
14 Apr 2015
86
90
7 Jun 2009
25
37
Total Floor Area
253 sq m
Current CO2 Emissions Level
3.1
Potential CO2 Emissions Level
2.1
CO2 per sq m per Year
12
Mains Gas Available
No
Habitable Rooms
0
Number of Extensions
0
Address
19 Portsmouth Avenue
Date
13 Mar 2013
Current
Potential
43
74
Property Type
House
Built Form
Detached
Constructed
1967-1975
+
Certificate History
13 Mar 2013
43
74
Total Floor Area
103 sq m
Current CO2 Emissions Level
7.0
Potential CO2 Emissions Level
2.9
CO2 per sq m per Year
68
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
1
Address
1A Portsmouth Avenue
Date
8 Feb 2024
Current
Potential
86
86
Property Type
Flat
Built Form
End-Terrace
Constructed
2023
+
Certificate History
8 Feb 2024
86
86
Total Floor Area
144 sq m
Current CO2 Emissions Level
1.7
Potential CO2 Emissions Level
1.7
CO2 per sq m per Year
12
Mains Gas Available
No
Habitable Rooms
0
Number of Extensions
0
Address
1B Portsmouth Avenue
Date
8 Feb 2024
Current
Potential
83
83
Property Type
Flat
Built Form
End-Terrace
Constructed
2023
+
Certificate History
8 Feb 2024
83
83
Total Floor Area
91 sq m
Current CO2 Emissions Level
1.3
Potential CO2 Emissions Level
1.3
CO2 per sq m per Year
14
Mains Gas Available
No
Habitable Rooms
0
Number of Extensions
0
Address
21 Portsmouth Avenue
Date
8 Jun 2017
Current
Potential
76
82
Property Type
House
Built Form
Detached
Constructed
1967-1975
+
Certificate History
8 Jun 2017
76
82
14 Feb 2013
29
81
Total Floor Area
337 sq m
Current CO2 Emissions Level
7.2
Potential CO2 Emissions Level
5.3
CO2 per sq m per Year
21
Mains Gas Available
Yes
Habitable Rooms
10
Number of Extensions
2
Address
23 Portsmouth Avenue
Date
1 Jun 2009
Current
Potential
36
60
Property Type
House
Built Form
Detached
Constructed
1950-1966
+
Certificate History
1 Jun 2009
36
60
Total Floor Area
157 sq m
Current CO2 Emissions Level
11.0
Potential CO2 Emissions Level
6.7
CO2 per sq m per Year
73
Mains Gas Available
Yes
Habitable Rooms
8
Number of Extensions
2
Address
33 Portsmouth Avenue
Date
7 Jan 2016
Current
Potential
42
79
Property Type
House
Built Form
Detached
Constructed
1930-1949
+
Certificate History
7 Jan 2016
42
79
Total Floor Area
119 sq m
Current CO2 Emissions Level
7.6
Potential CO2 Emissions Level
2.2
CO2 per sq m per Year
64
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
1
Address
39 PORTSMOUTH AVENUE, THAMES DITTON
Date
31 Mar 2021
Current
Potential
70
84
Property Type
Bungalow
Built Form
Detached
Constructed
1976-1982
+
Certificate History
31 Mar 2021
70
84
Total Floor Area
126 sq m
Current CO2 Emissions Level
3.9
Potential CO2 Emissions Level
2.0
CO2 per sq m per Year
31
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
1
Address
45 Portsmouth Avenue
Date
8 Jul 2019
Current
Potential
61
76
Property Type
Bungalow
Built Form
Detached
Constructed
1950-1966
+
Certificate History
8 Jul 2019
61
76
Total Floor Area
203 sq m
Current CO2 Emissions Level
9.0
Potential CO2 Emissions Level
5.7
CO2 per sq m per Year
44
Mains Gas Available
Yes
Habitable Rooms
7
Number of Extensions
1
Address
51 Portsmouth Avenue
Date
27 May 2012
Current
Potential
54
79
Property Type
House
Built Form
Detached
Constructed
1900-1929
+
Certificate History
27 May 2012
54
79
Total Floor Area
168 sq m
Current CO2 Emissions Level
8.1
Potential CO2 Emissions Level
3.6
CO2 per sq m per Year
48
Mains Gas Available
Yes
Habitable Rooms
8
Number of Extensions
1
Address
53 Portsmouth Avenue
Date
6 Sep 2012
Current
Potential
60
75
Property Type
House
Built Form
Detached
Constructed
1900-1929
+
Certificate History
6 Sep 2012
60
75
Total Floor Area
374 sq m
Current CO2 Emissions Level
14.0
Potential CO2 Emissions Level
9.1
CO2 per sq m per Year
38
Mains Gas Available
Yes
Habitable Rooms
11
Number of Extensions
2
Address
7 Portsmouth Avenue
Date
4 Nov 2015
Current
Potential
38
74
Property Type
House
Built Form
Semi-Detached
Constructed
1900-1929
+
Certificate History
4 Nov 2015
38
74
Total Floor Area
202 sq m
Current CO2 Emissions Level
12.7
Potential CO2 Emissions Level
4.8
CO2 per sq m per Year
63
Mains Gas Available
Yes
Habitable Rooms
8
Number of Extensions
1
Address
9 Portsmouth Avenue
Date
14 Oct 2024
Current
Potential
55
81
Property Type
House
Built Form
Detached
Constructed
1900-1929
+
Certificate History
14 Oct 2024
55
81
7 Sep 2010
42
44
Total Floor Area
213 sq m
Current CO2 Emissions Level
8.2
Potential CO2 Emissions Level
3.1
CO2 per sq m per Year
39
Mains Gas Available
Yes
Habitable Rooms
8
Number of Extensions
1
Address
Flat 1, 1 Portsmouth Avenue
Date
8 Feb 2024
Current
Potential
85
85
Property Type
Flat
Built Form
End-Terrace
Constructed
2021
+
Certificate History
8 Feb 2024
85
85
Total Floor Area
114 sq m
Current CO2 Emissions Level
1.3
Potential CO2 Emissions Level
1.3
CO2 per sq m per Year
12
Mains Gas Available
No
Habitable Rooms
0
Number of Extensions
0
Address
Flat 2, 1 Portsmouth Avenue
Date
8 Feb 2024
Current
Potential
86
86
Property Type
Flat
Built Form
End-Terrace
Constructed
2021
+
Certificate History
8 Feb 2024
86
86
Total Floor Area
139 sq m
Current CO2 Emissions Level
1.6
Potential CO2 Emissions Level
1.6
CO2 per sq m per Year
12
Mains Gas Available
No
Habitable Rooms
0
Number of Extensions
0
Address
Hingham House, Portsmouth Avenue
Date
13 Sep 2022
Current
Potential
81
87
Property Type
House
Built Form
End-Terrace
Constructed
2012 onwards
+
Certificate History
13 Sep 2022
81
87
Total Floor Area
185 sq m
Current CO2 Emissions Level
3.1
Potential CO2 Emissions Level
2.1
CO2 per sq m per Year
17
Mains Gas Available
Yes
Habitable Rooms
6
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.