PROPERTY ENERGY EFFICIENCY CERTIFICATE DETAILS
Gloucester Avenue, LONDON, NW1 8JA
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 Gloucester Avenue, NW1 8JA 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 Gloucester Avenue, LONDON, NW1 8JA
Period Covered:
2008 - 31 January 2025
Address
Inspection Date
Current
Potential
Property Type
Built Form
Constructed
Address
124a Gloucester Avenue
Date
14 Jul 2013
Current
Potential
71
78
Property Type
Flat
Built Form
Mid-Terrace
Constructed
before 1900
Certificate History
14 Jul 2013
71
78
6 Jun 2012
70
80
Total Floor Area
55 sq m
Current CO2 Emissions Level
1.7
Potential CO2 Emissions Level
1.2
CO2 per sq m per Year
31
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
1
Address
124b Gloucester Avenue
Date
17 Sep 2013
Current
Potential
66
75
Property Type
Flat
Built Form
Mid-Terrace
Constructed
before 1900
Certificate History
17 Sep 2013
66
75
Total Floor Area
40 sq m
Current CO2 Emissions Level
2.0
Potential CO2 Emissions Level
1.2
CO2 per sq m per Year
50
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
1
Address
128c Gloucester Avenue
Date
4 Feb 2015
Current
Potential
56
62
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1930-1949
Certificate History
4 Feb 2015
56
62
Total Floor Area
93 sq m
Current CO2 Emissions Level
4.7
Potential CO2 Emissions Level
4.0
CO2 per sq m per Year
50
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
132 Gloucester Avenue
Date
28 Jan 2010
Current
Potential
38
46
Property Type
House
Built Form
Mid-Terrace
Constructed
before 1900
Certificate History
28 Jan 2010
38
46
Total Floor Area
173 sq m
Current CO2 Emissions Level
12.0
Potential CO2 Emissions Level
11.0
CO2 per sq m per Year
72
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
1
Address
134 Gloucester Avenue
Date
29 Jul 2025
Current
Potential
66
79
Property Type
House
Built Form
Mid-Terrace
Constructed
before 1900
Certificate History
29 Jul 2025
66
79
25 Feb 2015
81
81
28 May 2014
33
66
Total Floor Area
194 sq m
Current CO2 Emissions Level
6.2
Potential CO2 Emissions Level
3.8
CO2 per sq m per Year
32
Mains Gas Available
Yes
Habitable Rooms
1
Number of Extensions
0
Address
138a Gloucester Avenue
Date
1 Jul 2024
Current
Potential
77
77
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1930-1949
Certificate History
1 Jul 2024
77
77
13 Nov 2015
14
59
Total Floor Area
94 sq m
Current CO2 Emissions Level
2.1
Potential CO2 Emissions Level
2.1
CO2 per sq m per Year
23
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
140 Gloucester Avenue
Date
18 Apr 2009
Current
Potential
1
1
Property Type
Maisonette
Built Form
Mid-Terrace
Constructed
before 1900
Certificate History
18 Apr 2009
1
1
Total Floor Area
76 sq m
Current CO2 Emissions Level
13.0
Potential CO2 Emissions Level
8.9
CO2 per sq m per Year
165
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
144a Gloucester Avenue
Date
27 May 2016
Current
Potential
77
77
Property Type
Flat
Built Form
Mid-Terrace
Constructed
N/A
Certificate History
27 May 2016
77
77
Total Floor Area
75 sq m
Current CO2 Emissions Level
1.8
Potential CO2 Emissions Level
1.8
CO2 per sq m per Year
24
Mains Gas Available
No
Habitable Rooms
0
Number of Extensions
0
Address
146 Gloucester Avenue
Date
21 Feb 2014
Current
Potential
46
68
Property Type
Maisonette
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
21 Feb 2014
46
68
Total Floor Area
92 sq m
Current CO2 Emissions Level
7.0
Potential CO2 Emissions Level
4.6
CO2 per sq m per Year
76
Mains Gas Available
No
Habitable Rooms
4
Number of Extensions
3
Address
146a Gloucester Avenue
Date
17 Oct 2024
Current
Potential
74
77
Property Type
Maisonette
Built Form
Mid-Terrace
Constructed
before 1900
Certificate History
17 Oct 2024
74
77
20 Jun 2024
26
60
Total Floor Area
80 sq m
Current CO2 Emissions Level
3.9
Potential CO2 Emissions Level
3.5
CO2 per sq m per Year
49
Mains Gas Available
No
Habitable Rooms
4
Number of Extensions
0
Address
146b Gloucester Avenue
Date
17 Oct 2024
Current
Potential
51
61
Property Type
Flat
Built Form
Mid-Terrace
Constructed
before 1900
Certificate History
17 Oct 2024
51
61
31 May 2023
44
61
Total Floor Area
122 sq m
Current CO2 Emissions Level
4.7
Potential CO2 Emissions Level
3.7
CO2 per sq m per Year
39
Mains Gas Available
No
Habitable Rooms
4
Number of Extensions
0
Address
Basement Flat, 140 Gloucester Avenue
Date
3 Oct 2024
Current
Potential
59
72
Property Type
Flat
Built Form
Mid-Terrace
Constructed
before 1900
Certificate History
3 Oct 2024
59
72
Total Floor Area
66 sq m
Current CO2 Emissions Level
4.3
Potential CO2 Emissions Level
2.8
CO2 per sq m per Year
65
Mains Gas Available
No
Habitable Rooms
3
Number of Extensions
0
Address
Basement Flat, 148 Gloucester Avenue
Date
5 Jun 2016
Current
Potential
72
80
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1930-1949
Certificate History
5 Jun 2016
72
80
Total Floor Area
74 sq m
Current CO2 Emissions Level
2.3
Potential CO2 Emissions Level
1.5
CO2 per sq m per Year
31
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
2
Address
FLAT 1, 126 GLOUCESTER AVENUE
Date
18 Oct 2020
Current
Potential
77
81
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
18 Oct 2020
77
81
Total Floor Area
40 sq m
Current CO2 Emissions Level
1.1
Potential CO2 Emissions Level
0.8
CO2 per sq m per Year
27
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
Flat 1, 126, Gloucester Avenue
Date
6 Jul 2010
Current
Potential
72
76
Property Type
Flat
Built Form
Mid-Terrace
Constructed
before 1900
Certificate History
6 Jul 2010
72
76
Total Floor Area
41 sq m
Current CO2 Emissions Level
2.1
Potential CO2 Emissions Level
1.7
CO2 per sq m per Year
50
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
Flat 1, 136 Gloucester Avenue
Date
21 Jul 2025
Current
Potential
80
80
Property Type
Flat
Built Form
Mid-Terrace
Constructed
2012-2021
Certificate History
21 Jul 2025
80
80
14 Jul 2015
73
73
16 Jun 2015
83
84
25 Feb 2015
79
79
Total Floor Area
96 sq m
Current CO2 Emissions Level
1.7
Potential CO2 Emissions Level
1.7
CO2 per sq m per Year
18
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
1
Address
Flat 2, 136 Gloucester Avenue
Date
29 May 2025
Current
Potential
79
79
Property Type
Flat
Built Form
End-Terrace
Constructed
2003-2006
Certificate History
29 May 2025
79
79
16 Jun 2015
79
81
25 Feb 2015
79
79
Total Floor Area
53 sq m
Current CO2 Emissions Level
1.2
Potential CO2 Emissions Level
1.2
CO2 per sq m per Year
22
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
Flat 3, 126, Gloucester Avenue
Date
1 Sep 2019
Current
Potential
72
81
Property Type
Flat
Built Form
Mid-Terrace
Constructed
before 1900
Certificate History
1 Sep 2019
72
81
Total Floor Area
39 sq m
Current CO2 Emissions Level
1.4
Potential CO2 Emissions Level
0.8
CO2 per sq m per Year
37
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
Flat 3, 136 Gloucester Avenue
Date
21 Jul 2025
Current
Potential
80
80
Property Type
Flat
Built Form
Semi-Detached
Constructed
2012-2021
Certificate History
21 Jul 2025
80
80
14 Jul 2015
73
73
16 Jun 2015
80
80
Total Floor Area
73 sq m
Current CO2 Emissions Level
1.2
Potential CO2 Emissions Level
1.2
CO2 per sq m per Year
17
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
Flat 4, 126 Gloucester Avenue
Date
16 Dec 2021
Current
Potential
62
68
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
16 Dec 2021
62
68
22 Apr 2010
72
81
Total Floor Area
45 sq m
Current CO2 Emissions Level
2.4
Potential CO2 Emissions Level
2.0
CO2 per sq m per Year
54
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
Flat 4, 136 Gloucester Avenue
Date
29 May 2025
Current
Potential
79
79
Property Type
Flat
Built Form
End-Terrace
Constructed
2003-2006
Certificate History
29 May 2025
79
79
16 Jun 2015
80
81
Total Floor Area
53 sq m
Current CO2 Emissions Level
1.2
Potential CO2 Emissions Level
1.2
CO2 per sq m per Year
22
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
Flat 5, 136 Gloucester Avenue
Date
6 Mar 2024
Current
Potential
80
86
Property Type
House
Built Form
Semi-Detached
Constructed
2012 onwards
Certificate History
6 Mar 2024
80
86
Total Floor Area
263 sq m
Current CO2 Emissions Level
4.6
Potential CO2 Emissions Level
3.2
CO2 per sq m per Year
17
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
1
Address
Flat A, 130 Gloucester Avenue
Date
10 Jun 2014
Current
Potential
67
75
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
10 Jun 2014
67
75
30 Sep 2008
56
58
Total Floor Area
110 sq m
Current CO2 Emissions Level
3.9
Potential CO2 Emissions Level
2.7
CO2 per sq m per Year
35
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
1
Address
Flat A, 142 Gloucester Avenue
Date
27 Mar 2022
Current
Potential
43
74
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
27 Mar 2022
43
74
Total Floor Area
103 sq m
Current CO2 Emissions Level
5.9
Potential CO2 Emissions Level
4.2
CO2 per sq m per Year
58
Mains Gas Available
No
Habitable Rooms
4
Number of Extensions
1
Address
Flat B, 142, Gloucester Avenue
Date
10 Jun 2018
Current
Potential
76
78
Property Type
Flat
Built Form
Mid-Terrace
Constructed
INVALID!
Certificate History
10 Jun 2018
76
78
14 Dec 2015
36
61
Total Floor Area
74 sq m
Current CO2 Emissions Level
2.4
Potential CO2 Emissions Level
2.3
CO2 per sq m per Year
33
Mains Gas Available
No
Habitable Rooms
3
Number of Extensions
2
Address
Flat B, 144 Gloucester Avenue
Date
19 Mar 2018
Current
Potential
45
72
Property Type
Maisonette
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
19 Mar 2018
45
72
11 Apr 2011
24
24
Total Floor Area
106 sq m
Current CO2 Emissions Level
5.8
Potential CO2 Emissions Level
3.0
CO2 per sq m per Year
55
Mains Gas Available
No
Habitable Rooms
4
Number of Extensions
1
Address
Lower Ground Floor, 140 Gloucester Avenue
Date
13 Oct 2014
Current
Potential
67
78
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1930-1949
Certificate History
13 Oct 2014
67
78
Total Floor Area
53 sq m
Current CO2 Emissions Level
3.5
Potential CO2 Emissions Level
2.4
CO2 per sq m per Year
67
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
Top Floor Flat, 140 Gloucester Avenue
Date
27 Jul 2015
Current
Potential
59
67
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1930-1949
Certificate History
27 Jul 2015
59
67
Total Floor Area
105 sq m
Current CO2 Emissions Level
4.7
Potential CO2 Emissions Level
3.8
CO2 per sq m per Year
45
Mains Gas Available
Yes
Habitable Rooms
4
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.