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PROPERTY ENERGY EFFICIENCY CERTIFICATE DETAILS
Onslow Gardens, LONDON, SW7 3AQ

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 Onslow Gardens, SW7 3AQ 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 Onslow Gardens, LONDON, SW7 3AQ
Period Covered: 2008 - 31 January 2025

Address
Inspection Date
Current
Potential
Property Type
Built Form
Constructed
Address
33 Onslow Gardens
Date
8 Jul 2013
Current
Potential
72
80
Property Type
Maisonette
Built Form
Mid-Terrace
Constructed
before 1900
+
Certificate History
8 Jul 2013
72
80
10 Aug 2010
55
61
Total Floor Area
175 sq m
Current CO2 Emissions Level
4.7
Potential CO2 Emissions Level
3.3
CO2 per sq m per Year
27
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
Flat 1, 34 Onslow Gardens
Date
6 Dec 2011
Current
Potential
66
67
Property Type
Flat
Built Form
N/A
Constructed
before 1900
+
Certificate History
6 Dec 2011
66
67
Total Floor Area
48 sq m
Current CO2 Emissions Level
2.3
Potential CO2 Emissions Level
2.2
CO2 per sq m per Year
48
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
Flat 2, 34, Onslow Gardens
Date
18 May 2010
Current
Potential
65
75
Property Type
Flat
Built Form
Mid-Terrace
Constructed
before 1900
+
Certificate History
18 May 2010
65
75
Total Floor Area
61 sq m
Current CO2 Emissions Level
3.2
Potential CO2 Emissions Level
2.3
CO2 per sq m per Year
52
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
Flat 3, 34 Onslow Gardens
Date
11 Apr 2023
Current
Potential
57
76
Property Type
Flat
Built Form
End-Terrace
Constructed
before 1900
+
Certificate History
11 Apr 2023
57
76
22 Oct 2009
19
19
21 Oct 2009
32
32
Total Floor Area
36 sq m
Current CO2 Emissions Level
2.6
Potential CO2 Emissions Level
1.2
CO2 per sq m per Year
71
Mains Gas Available
No
Habitable Rooms
1
Number of Extensions
0
Address
Flat 4, 34, Onslow Gardens
Date
29 Jun 2016
Current
Potential
50
68
Property Type
Flat
Built Form
Enclosed End-Terrace
Constructed
before 1900
+
Certificate History
29 Jun 2016
50
68
Total Floor Area
37 sq m
Current CO2 Emissions Level
3.1
Potential CO2 Emissions Level
1.8
CO2 per sq m per Year
85
Mains Gas Available
Yes
Habitable Rooms
1
Number of Extensions
1
Address
Flat 5, 34, Onslow Gardens
Date
21 Jun 2009
Current
Potential
59
69
Property Type
Flat
Built Form
End-Terrace
Constructed
before 1900
+
Certificate History
21 Jun 2009
59
69
23 Oct 2001
54
65
Total Floor Area
156 sq m
Current CO2 Emissions Level
6.9
Potential CO2 Emissions Level
5.4
CO2 per sq m per Year
44
Mains Gas Available
No
Habitable Rooms
0
Number of Extensions
0
Address
FLAT 6, 34 ONSLOW GARDENS
Date
14 Jul 2021
Current
Potential
56
80
Property Type
Flat
Built Form
End-Terrace
Constructed
before 1900
+
Certificate History
14 Jul 2021
56
80
Total Floor Area
123 sq m
Current CO2 Emissions Level
5.9
Potential CO2 Emissions Level
2.2
CO2 per sq m per Year
48
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
Flat 7, 34, Onslow Gardens
Date
20 May 2009
Current
Potential
38
54
Property Type
Maisonette
Built Form
End-Terrace
Constructed
before 1900
+
Certificate History
20 May 2009
38
54
Total Floor Area
62 sq m
Current CO2 Emissions Level
10.0
Potential CO2 Emissions Level
7.3
CO2 per sq m per Year
77
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
Flat 8, 34 Onslow Gardens
Date
2 Feb 2012
Current
Potential
66
66
Property Type
Flat
Built Form
Mid-Terrace
Constructed
before 1900
+
Certificate History
2 Feb 2012
66
66
Total Floor Area
135 sq m
Current CO2 Emissions Level
5.1
Potential CO2 Emissions Level
5.1
CO2 per sq m per Year
38
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
2
Address
GROUND & LOWER GROUND FLOOR FLAT 33 ONSLOW GARDENS
Date
6 Nov 2020
Current
Potential
65
77
Property Type
Flat
Built Form
Mid-Terrace
Constructed
before 1900
+
Certificate History
6 Nov 2020
65
77
Total Floor Area
198 sq m
Current CO2 Emissions Level
6.7
Potential CO2 Emissions Level
4.0
CO2 per sq m per Year
34
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.