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PROPERTY ENERGY EFFICIENCY CERTIFICATE DETAILS
Derwent Avenue, LONDON, NW7 3DY

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 Derwent Avenue, NW7 3DY 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 Derwent Avenue, LONDON, NW7 3DY
Period Covered: 2008 - 31 January 2025

Address
Inspection Date
Current
Potential
Property Type
Built Form
Constructed
Address
1 Derwent Avenue
Date
19 Nov 2019
Current
Potential
75
84
Property Type
House
Built Form
Semi-Detached
Constructed
1930-1949
+
Certificate History
19 Nov 2019
75
84
24 Oct 2012
42
68
Total Floor Area
201 sq m
Current CO2 Emissions Level
5.1
Potential CO2 Emissions Level
3.4
CO2 per sq m per Year
25
Mains Gas Available
Yes
Habitable Rooms
9
Number of Extensions
3
Address
11 Derwent Avenue
Date
13 Feb 2015
Current
Potential
60
78
Property Type
House
Built Form
Semi-Detached
Constructed
1930-1949
+
Certificate History
13 Feb 2015
60
78
Total Floor Area
131 sq m
Current CO2 Emissions Level
6.1
Potential CO2 Emissions Level
3.4
CO2 per sq m per Year
47
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
0
Address
13 Derwent Avenue
Date
3 Feb 2014
Current
Potential
57
79
Property Type
House
Built Form
Semi-Detached
Constructed
1900-1929
+
Certificate History
3 Feb 2014
57
79
Total Floor Area
102 sq m
Current CO2 Emissions Level
5.0
Potential CO2 Emissions Level
2.3
CO2 per sq m per Year
49
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
19 Derwent Avenue
Date
10 Mar 2015
Current
Potential
64
85
Property Type
House
Built Form
Semi-Detached
Constructed
1930-1949
+
Certificate History
10 Mar 2015
64
85
3 Jul 2012
47
72
Total Floor Area
124 sq m
Current CO2 Emissions Level
5.2
Potential CO2 Emissions Level
2.0
CO2 per sq m per Year
42
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
1
Address
21 Derwent Avenue
Date
17 Mar 2015
Current
Potential
59
84
Property Type
House
Built Form
Semi-Detached
Constructed
1900-1929
+
Certificate History
17 Mar 2015
59
84
25 Feb 2014
47
87
Total Floor Area
123 sq m
Current CO2 Emissions Level
5.8
Potential CO2 Emissions Level
2.2
CO2 per sq m per Year
48
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
1
Address
23 Derwent Avenue
Date
21 Aug 2016
Current
Potential
47
83
Property Type
House
Built Form
Semi-Detached
Constructed
1930-1949
+
Certificate History
21 Aug 2016
47
83
Total Floor Area
121 sq m
Current CO2 Emissions Level
7.7
Potential CO2 Emissions Level
2.3
CO2 per sq m per Year
64
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
1
Address
27 Derwent Avenue
Date
10 Mar 2016
Current
Potential
52
82
Property Type
House
Built Form
Semi-Detached
Constructed
1930-1949
+
Certificate History
10 Mar 2016
52
82
Total Floor Area
154 sq m
Current CO2 Emissions Level
8.7
Potential CO2 Emissions Level
3.1
CO2 per sq m per Year
56
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
0
Address
3 Derwent Avenue
Date
19 Nov 2019
Current
Potential
52
87
Property Type
House
Built Form
Semi-Detached
Constructed
1930-1949
+
Certificate History
19 Nov 2019
52
87
Total Floor Area
103 sq m
Current CO2 Emissions Level
6.1
Potential CO2 Emissions Level
1.4
CO2 per sq m per Year
59
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
31 Derwent Avenue
Date
15 Apr 2024
Current
Potential
72
83
Property Type
House
Built Form
Semi-Detached
Constructed
1900-1929
+
Certificate History
15 Apr 2024
72
83
15 Apr 2016
48
79
Total Floor Area
197 sq m
Current CO2 Emissions Level
5.9
Potential CO2 Emissions Level
3.6
CO2 per sq m per Year
30
Mains Gas Available
Yes
Habitable Rooms
9
Number of Extensions
2
Address
7 Derwent Avenue
Date
4 Feb 2015
Current
Potential
66
85
Property Type
House
Built Form
Semi-Detached
Constructed
1930-1949
+
Certificate History
4 Feb 2015
66
85
12 Jan 2012
61
61
Total Floor Area
130 sq m
Current CO2 Emissions Level
5.0
Potential CO2 Emissions Level
2.2
CO2 per sq m per Year
38
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
0
Address
9 Derwent Avenue
Date
14 Jul 2015
Current
Potential
55
81
Property Type
House
Built Form
Semi-Detached
Constructed
1900-1929
+
Certificate History
14 Jul 2015
55
81
Total Floor Area
148 sq m
Current CO2 Emissions Level
7.7
Potential CO2 Emissions Level
3.0
CO2 per sq m per Year
52
Mains Gas Available
Yes
Habitable Rooms
7
Number of Extensions
2
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.