PROPERTY ENERGY EFFICIENCY CERTIFICATE DETAILS
Masons Avenue, HARROW, HA3 5AZ
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 Masons Avenue, HA3 5AZ 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 Masons Avenue, HARROW, HA3 5AZ
Period Covered:
2008 - 31 January 2025
Address
Inspection Date
Current
Potential
Property Type
Built Form
Constructed
Address
139 Masons Avenue
Date
18 Oct 2015
Current
Potential
61
75
Property Type
Flat
Built Form
End-Terrace
Constructed
before 1900
Certificate History
18 Oct 2015
61
75
17 Sep 2010
60
62
Total Floor Area
40 sq m
Current CO2 Emissions Level
2.4
Potential CO2 Emissions Level
1.3
CO2 per sq m per Year
61
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
141 Masons Avenue
Date
28 Apr 2019
Current
Potential
70
77
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1930-1949
Certificate History
28 Apr 2019
70
77
7 May 2009
64
70
Total Floor Area
42 sq m
Current CO2 Emissions Level
1.8
Potential CO2 Emissions Level
1.2
CO2 per sq m per Year
42
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
141a Masons Avenue
Date
28 Apr 2019
Current
Potential
60
67
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1930-1949
Certificate History
28 Apr 2019
60
67
8 Apr 2009
62
65
Total Floor Area
47 sq m
Current CO2 Emissions Level
2.8
Potential CO2 Emissions Level
2.2
CO2 per sq m per Year
59
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
143 Masons Avenue
Date
4 Sep 2019
Current
Potential
69
88
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
4 Sep 2019
69
88
Total Floor Area
89 sq m
Current CO2 Emissions Level
3.2
Potential CO2 Emissions Level
1.0
CO2 per sq m per Year
36
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
147 Masons Avenue
Date
21 Jul 2011
Current
Potential
52
58
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
21 Jul 2011
52
58
Total Floor Area
90 sq m
Current CO2 Emissions Level
5.4
Potential CO2 Emissions Level
4.7
CO2 per sq m per Year
60
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
149 Masons Avenue
Date
21 Feb 2024
Current
Potential
62
82
Property Type
House
Built Form
Mid-Terrace
Constructed
1930-1949
Certificate History
21 Feb 2024
62
82
Total Floor Area
86 sq m
Current CO2 Emissions Level
3.9
Potential CO2 Emissions Level
1.8
CO2 per sq m per Year
45
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
0
Address
155 MASONS AVENUE, HARROW
Date
21 Oct 2020
Current
Potential
57
73
Property Type
Flat
Built Form
Detached
Constructed
1950-1966
Certificate History
21 Oct 2020
57
73
Total Floor Area
60 sq m
Current CO2 Emissions Level
3.6
Potential CO2 Emissions Level
1.9
CO2 per sq m per Year
60
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
159 Masons Avenue
Date
3 May 2022
Current
Potential
76
79
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
3 May 2022
76
79
1 May 2012
60
76
Total Floor Area
54 sq m
Current CO2 Emissions Level
1.6
Potential CO2 Emissions Level
1.2
CO2 per sq m per Year
29
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
163 Masons Avenue
Date
21 Dec 2022
Current
Potential
74
80
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1930-1949
Certificate History
21 Dec 2022
74
80
15 Oct 2012
57
64
Total Floor Area
56 sq m
Current CO2 Emissions Level
1.8
Potential CO2 Emissions Level
1.2
CO2 per sq m per Year
32
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
165 Masons Avenue
Date
24 Sep 2018
Current
Potential
74
78
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1930-1949
Certificate History
24 Sep 2018
74
78
9 Feb 2009
62
73
Total Floor Area
57 sq m
Current CO2 Emissions Level
1.8
Potential CO2 Emissions Level
1.4
CO2 per sq m per Year
32
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
167 Masons Avenue
Date
22 Nov 2019
Current
Potential
76
81
Property Type
Flat
Built Form
End-Terrace
Constructed
1900-1929
Certificate History
22 Nov 2019
76
81
12 Dec 2009
77
81
Total Floor Area
61 sq m
Current CO2 Emissions Level
1.7
Potential CO2 Emissions Level
1.1
CO2 per sq m per Year
28
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
169 Masons Avenue
Date
12 Dec 2015
Current
Potential
50
67
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1930-1949
Certificate History
12 Dec 2015
50
67
Total Floor Area
63 sq m
Current CO2 Emissions Level
4.4
Potential CO2 Emissions Level
2.7
CO2 per sq m per Year
70
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
171 Masons Avenue
Date
14 Jan 2016
Current
Potential
69
77
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
14 Jan 2016
69
77
Total Floor Area
63 sq m
Current CO2 Emissions Level
2.5
Potential CO2 Emissions Level
1.6
CO2 per sq m per Year
39
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
175 Masons Avenue
Date
17 Aug 2022
Current
Potential
63
66
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1930-1949
Certificate History
17 Aug 2022
63
66
13 Aug 2010
77
78
Total Floor Area
61 sq m
Current CO2 Emissions Level
3.0
Potential CO2 Emissions Level
2.7
CO2 per sq m per Year
50
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
177 Masons Avenue
Date
27 Jul 2020
Current
Potential
70
78
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
27 Jul 2020
70
78
23 Nov 2010
72
76
Total Floor Area
62 sq m
Current CO2 Emissions Level
2.3
Potential CO2 Emissions Level
1.5
CO2 per sq m per Year
37
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
179 Masons Avenue
Date
18 Jun 2019
Current
Potential
67
82
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
18 Jun 2019
67
82
11 Nov 2008
47
51
Total Floor Area
61 sq m
Current CO2 Emissions Level
3.3
Potential CO2 Emissions Level
1.1
CO2 per sq m per Year
53
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
181 Masons Avenue
Date
27 Jul 2020
Current
Potential
61
66
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
27 Jul 2020
61
66
26 Nov 2009
70
77
Total Floor Area
62 sq m
Current CO2 Emissions Level
3.3
Potential CO2 Emissions Level
2.8
CO2 per sq m per Year
53
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
183 Masons Avenue
Date
24 Jun 2020
Current
Potential
70
78
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1930-1949
Certificate History
24 Jun 2020
70
78
24 Aug 2009
71
71
21 Mar 2009
67
73
Total Floor Area
56 sq m
Current CO2 Emissions Level
2.2
Potential CO2 Emissions Level
1.3
CO2 per sq m per Year
39
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
185 Masons Avenue
Date
27 Jul 2020
Current
Potential
75
81
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
27 Jul 2020
75
81
3 Oct 2008
76
80
Total Floor Area
62 sq m
Current CO2 Emissions Level
1.8
Potential CO2 Emissions Level
1.2
CO2 per sq m per Year
29
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
187 MASONS AVENUE
Date
8 Aug 2021
Current
Potential
59
79
Property Type
Flat
Built Form
Semi-Detached
Constructed
1900-1929
Certificate History
8 Aug 2021
59
79
Total Floor Area
61 sq m
Current CO2 Emissions Level
3.3
Potential CO2 Emissions Level
2.6
CO2 per sq m per Year
54
Mains Gas Available
No
Habitable Rooms
3
Number of Extensions
0
Address
189 Masons Avenue
Date
11 Jun 2019
Current
Potential
71
91
Property Type
House
Built Form
Mid-Terrace
Constructed
1950-1966
Certificate History
11 Jun 2019
71
91
Total Floor Area
61 sq m
Current CO2 Emissions Level
2.2
Potential CO2 Emissions Level
0.4
CO2 per sq m per Year
36
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
191 Masons Avenue
Date
27 Jul 2020
Current
Potential
76
81
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
27 Jul 2020
76
81
5 Jan 2020
74
80
3 Dec 2008
75
85
Total Floor Area
62 sq m
Current CO2 Emissions Level
1.7
Potential CO2 Emissions Level
1.2
CO2 per sq m per Year
28
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
193 Masons Avenue
Date
17 Jul 2013
Current
Potential
61
66
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1930-1949
Certificate History
17 Jul 2013
61
66
Total Floor Area
63 sq m
Current CO2 Emissions Level
3.1
Potential CO2 Emissions Level
2.6
CO2 per sq m per Year
49
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
197 Masons Avenue
Date
10 Oct 2010
Current
Potential
73
78
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1930-1949
Certificate History
10 Oct 2010
73
78
Total Floor Area
55 sq m
Current CO2 Emissions Level
2.4
Potential CO2 Emissions Level
1.9
CO2 per sq m per Year
43
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
199 Masons Avenue
Date
17 Jan 2012
Current
Potential
64
70
Property Type
Flat
Built Form
Semi-Detached
Constructed
1950-1966
Certificate History
17 Jan 2012
64
70
Total Floor Area
29 sq m
Current CO2 Emissions Level
1.8
Potential CO2 Emissions Level
1.4
CO2 per sq m per Year
64
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
201 Masons Avenue
Date
19 May 2015
Current
Potential
60
77
Property Type
Flat
Built Form
End-Terrace
Constructed
1930-1949
Certificate History
19 May 2015
60
77
Total Floor Area
54 sq m
Current CO2 Emissions Level
3.0
Potential CO2 Emissions Level
1.4
CO2 per sq m per Year
56
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
203 Masons Avenue
Date
27 Jul 2020
Current
Potential
71
80
Property Type
Flat
Built Form
Semi-Detached
Constructed
1900-1929
Certificate History
27 Jul 2020
71
80
14 Oct 2008
79
81
Total Floor Area
62 sq m
Current CO2 Emissions Level
2.2
Potential CO2 Emissions Level
1.3
CO2 per sq m per Year
36
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
205 Masons Avenue
Date
19 Feb 2020
Current
Potential
62
79
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1930-1949
Certificate History
19 Feb 2020
62
79
18 Jan 2010
37
57
Total Floor Area
60 sq m
Current CO2 Emissions Level
3.0
Potential CO2 Emissions Level
1.3
CO2 per sq m per Year
50
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
Flat 1 143 Masons Avenue
Date
20 Dec 2021
Current
Potential
78
78
Property Type
Flat
Built Form
Detached
Constructed
2021
Certificate History
20 Dec 2021
78
78
Total Floor Area
61 sq m
Current CO2 Emissions Level
1.5
Potential CO2 Emissions Level
1.5
CO2 per sq m per Year
24
Mains Gas Available
No
Habitable Rooms
0
Number of Extensions
0
Address
Flat 2 143 Masons Avenue
Date
20 Dec 2021
Current
Potential
80
80
Property Type
Flat
Built Form
Detached
Constructed
2021
Certificate History
20 Dec 2021
80
80
Total Floor Area
77 sq m
Current CO2 Emissions Level
1.5
Potential CO2 Emissions Level
1.5
CO2 per sq m per Year
19
Mains Gas Available
No
Habitable Rooms
0
Number of Extensions
0
Bands
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.