PROPERTY ENERGY EFFICIENCY CERTIFICATE DETAILS
Longfield Avenue, LONDON, NW7 2SA

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 Longfield Avenue, NW7 2SA 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 Longfield Avenue, LONDON, NW7 2SA
Period Covered: 2008 - 31 October 2024

Address
Inspection Date
Current
Potential
Property Type
Built Form
Constructed
Address
73 Longfield Avenue
Date
4 Sep 2014
Current
Potential
75
85
Property Type
House
Built Form
Detached
Constructed
1996-2002
+
Certificate History
4 Sep 2014
75
85
Total Floor Area
105 sq m
Current CO2 Emissions Level
2.6
Potential CO2 Emissions Level
1.5
CO2 per sq m per Year
25
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
75 Longfield Avenue
Date
22 Feb 2022
Current
Potential
69
85
Property Type
House
Built Form
Detached
Constructed
1996-2002
+
Certificate History
22 Feb 2022
69
85
11 Mar 2011
71
73
Total Floor Area
74 sq m
Current CO2 Emissions Level
2.8
Potential CO2 Emissions Level
1.3
CO2 per sq m per Year
37
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
1
Address
77 Longfield Avenue
Date
10 Sep 2023
Current
Potential
69
83
Property Type
House
Built Form
Detached
Constructed
1991-1995
+
Certificate History
10 Sep 2023
69
83
4 Feb 2014
70
85
Total Floor Area
85 sq m
Current CO2 Emissions Level
3.1
Potential CO2 Emissions Level
1.7
CO2 per sq m per Year
37
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
1
Address
79 Longfield Avenue
Date
19 Sep 2010
Current
Potential
66
73
Property Type
House
Built Form
Detached
Constructed
1991-1995
+
Certificate History
19 Sep 2010
66
73
Total Floor Area
99 sq m
Current CO2 Emissions Level
4.2
Potential CO2 Emissions Level
3.4
CO2 per sq m per Year
42
Mains Gas Available
Yes
Habitable Rooms
7
Number of Extensions
1
Address
81 Longfield Avenue
Date
22 Aug 2013
Current
Potential
59
75
Property Type
House
Built Form
Detached
Constructed
1991-1995
+
Certificate History
22 Aug 2013
59
75
Total Floor Area
84 sq m
Current CO2 Emissions Level
4.1
Potential CO2 Emissions Level
2.4
CO2 per sq m per Year
49
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
83 Longfield Avenue
Date
11 Mar 2014
Current
Potential
61
82
Property Type
House
Built Form
End-Terrace
Constructed
1991-1995
+
Certificate History
11 Mar 2014
61
82
23 Feb 2011
67
73
Total Floor Area
70 sq m
Current CO2 Emissions Level
3.3
Potential CO2 Emissions Level
1.4
CO2 per sq m per Year
47
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
87 Longfield Avenue
Date
13 Nov 2021
Current
Potential
73
90
Property Type
House
Built Form
Mid-Terrace
Constructed
1991-1995
+
Certificate History
13 Nov 2021
73
90
30 Nov 2011
72
75
Total Floor Area
60 sq m
Current CO2 Emissions Level
2.0
Potential CO2 Emissions Level
0.6
CO2 per sq m per Year
33
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
88 Longfield Avenue
Date
7 Jul 2019
Current
Potential
73
87
Property Type
House
Built Form
End-Terrace
Constructed
1996-2002
+
Certificate History
7 Jul 2019
73
87
Total Floor Area
66 sq m
Current CO2 Emissions Level
2.1
Potential CO2 Emissions Level
1.0
CO2 per sq m per Year
32
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
89 Longfield Avenue
Date
31 Dec 2008
Current
Potential
76
80
Property Type
House
Built Form
Mid-Terrace
Constructed
1991-1995
+
Certificate History
31 Dec 2008
76
80
Total Floor Area
66 sq m
Current CO2 Emissions Level
2.3
Potential CO2 Emissions Level
1.9
CO2 per sq m per Year
35
Mains Gas Available
Yes
Habitable Rooms
3
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.