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PROPERTY ENERGY EFFICIENCY CERTIFICATE DETAILS
Killowen Avenue, NORTHOLT, UB5 4QU

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 Killowen Avenue, UB5 4QU 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 Killowen Avenue, NORTHOLT, UB5 4QU
Period Covered: 2008 - 31 January 2025

Address
Inspection Date
Current
Potential
Property Type
Built Form
Constructed
Address
100 Killowen Avenue
Date
25 Mar 2018
Current
Potential
72
76
Property Type
Maisonette
Built Form
Semi-Detached
Constructed
1930-1949
+
Certificate History
25 Mar 2018
72
76
Total Floor Area
58 sq m
Current CO2 Emissions Level
2.0
Potential CO2 Emissions Level
1.6
CO2 per sq m per Year
34
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
1
Address
100a Killowen Avenue
Date
14 Jun 2017
Current
Potential
70
73
Property Type
Maisonette
Built Form
Semi-Detached
Constructed
1950-1966
+
Certificate History
14 Jun 2017
70
73
Total Floor Area
90 sq m
Current CO2 Emissions Level
3.1
Potential CO2 Emissions Level
2.7
CO2 per sq m per Year
34
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
47 Killowen Avenue
Date
3 Jul 2016
Current
Potential
43
84
Property Type
House
Built Form
Semi-Detached
Constructed
1930-1949
+
Certificate History
3 Jul 2016
43
84
Total Floor Area
90 sq m
Current CO2 Emissions Level
6.4
Potential CO2 Emissions Level
1.4
CO2 per sq m per Year
72
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
1
Address
49 Killowen Avenue
Date
5 Jun 2018
Current
Potential
51
84
Property Type
House
Built Form
Semi-Detached
Constructed
1930-1949
+
Certificate History
5 Jun 2018
51
84
Total Floor Area
92 sq m
Current CO2 Emissions Level
5.5
Potential CO2 Emissions Level
1.5
CO2 per sq m per Year
59
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
1
Address
66 Killowen Avenue
Date
4 Sep 2019
Current
Potential
65
82
Property Type
House
Built Form
Semi-Detached
Constructed
1930-1949
+
Certificate History
4 Sep 2019
65
82
6 Nov 2008
45
58
Total Floor Area
96 sq m
Current CO2 Emissions Level
3.9
Potential CO2 Emissions Level
1.8
CO2 per sq m per Year
41
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
76 Killowen Avenue
Date
11 Jul 2009
Current
Potential
52
54
Property Type
House
Built Form
Semi-Detached
Constructed
1930-1949
+
Certificate History
11 Jul 2009
52
54
Total Floor Area
104 sq m
Current CO2 Emissions Level
6.2
Potential CO2 Emissions Level
6.1
CO2 per sq m per Year
59
Mains Gas Available
Yes
Habitable Rooms
7
Number of Extensions
1
Address
78 Killowen Avenue
Date
8 Mar 2019
Current
Potential
62
86
Property Type
House
Built Form
Semi-Detached
Constructed
1930-1949
+
Certificate History
8 Mar 2019
62
86
Total Floor Area
85 sq m
Current CO2 Emissions Level
3.8
Potential CO2 Emissions Level
1.2
CO2 per sq m per Year
45
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
84 Killowen Avenue
Date
7 Feb 2024
Current
Potential
61
80
Property Type
House
Built Form
Semi-Detached
Constructed
1930-1949
+
Certificate History
7 Feb 2024
61
80
Total Floor Area
105 sq m
Current CO2 Emissions Level
4.6
Potential CO2 Emissions Level
2.2
CO2 per sq m per Year
44
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
1
Address
90 Killowen Avenue
Date
23 Nov 2024
Current
Potential
64
86
Property Type
House
Built Form
Semi-Detached
Constructed
1930-1949
+
Certificate History
23 Nov 2024
64
86
Total Floor Area
87 sq m
Current CO2 Emissions Level
3.7
Potential CO2 Emissions Level
1.2
CO2 per sq m per Year
43
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
94 Killowen Avenue
Date
27 Mar 2017
Current
Potential
61
86
Property Type
House
Built Form
Semi-Detached
Constructed
1900-1929
+
Certificate History
27 Mar 2017
61
86
Total Floor Area
87 sq m
Current CO2 Emissions Level
4.0
Potential CO2 Emissions Level
1.2
CO2 per sq m per Year
46
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
98 Killowen Avenue
Date
15 Oct 2013
Current
Potential
61
85
Property Type
House
Built Form
Semi-Detached
Constructed
1930-1949
+
Certificate History
15 Oct 2013
61
85
Total Floor Area
114 sq m
Current CO2 Emissions Level
4.8
Potential CO2 Emissions Level
1.6
CO2 per sq m per Year
42
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
1
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.