PROPERTY ENERGY EFFICIENCY CERTIFICATE DETAILS
Guardian Avenue, LONDON, NW9 4AW
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 Guardian Avenue, NW9 4AW 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 Guardian Avenue, LONDON, NW9 4AW
Period Covered:
2008 - 31 January 2025
Address
Inspection Date
Current
Potential
Property Type
Built Form
Constructed
Address
Flat 1 Denver Court, 1, Guardian Avenue
Date
2 May 2017
Current
Potential
86
86
Property Type
Flat
Built Form
Mid-Terrace
Constructed
N/A
Certificate History
2 May 2017
86
86
Total Floor Area
74 sq m
Current CO2 Emissions Level
0.7
Potential CO2 Emissions Level
0.7
CO2 per sq m per Year
9
Mains Gas Available
No
Habitable Rooms
0
Number of Extensions
0
Address
Flat 10 Denver Court, 1, Guardian Avenue
Date
20 Apr 2017
Current
Potential
85
85
Property Type
Flat
Built Form
Mid-Terrace
Constructed
N/A
Certificate History
20 Apr 2017
85
85
Total Floor Area
50 sq m
Current CO2 Emissions Level
0.5
Potential CO2 Emissions Level
0.5
CO2 per sq m per Year
11
Mains Gas Available
No
Habitable Rooms
0
Number of Extensions
0
Address
Flat 11 Denver Court, 1, Guardian Avenue
Date
28 Apr 2017
Current
Potential
85
85
Property Type
Flat
Built Form
Mid-Terrace
Constructed
N/A
Certificate History
28 Apr 2017
85
85
Total Floor Area
69 sq m
Current CO2 Emissions Level
0.7
Potential CO2 Emissions Level
0.7
CO2 per sq m per Year
11
Mains Gas Available
No
Habitable Rooms
0
Number of Extensions
0
Address
Flat 12, Denver Court
Date
15 Aug 2023
Current
Potential
83
83
Property Type
Flat
Built Form
Mid-Terrace
Constructed
2012 onwards
Certificate History
15 Aug 2023
83
83
Total Floor Area
72 sq m
Current CO2 Emissions Level
1.1
Potential CO2 Emissions Level
1.1
CO2 per sq m per Year
16
Mains Gas Available
No
Habitable Rooms
3
Number of Extensions
0
Address
Flat 12 Denver Court, 1, Guardian Avenue
Date
28 Apr 2017
Current
Potential
86
86
Property Type
Flat
Built Form
Mid-Terrace
Constructed
N/A
Certificate History
28 Apr 2017
86
86
Total Floor Area
72 sq m
Current CO2 Emissions Level
0.7
Potential CO2 Emissions Level
0.7
CO2 per sq m per Year
10
Mains Gas Available
No
Habitable Rooms
0
Number of Extensions
0
Address
Flat 13 Denver Court, 1, Guardian Avenue
Date
2 May 2017
Current
Potential
85
85
Property Type
Flat
Built Form
Mid-Terrace
Constructed
N/A
Certificate History
2 May 2017
85
85
Total Floor Area
74 sq m
Current CO2 Emissions Level
0.8
Potential CO2 Emissions Level
0.8
CO2 per sq m per Year
11
Mains Gas Available
No
Habitable Rooms
0
Number of Extensions
0
Address
Flat 14 Denver Court, 1, Guardian Avenue
Date
28 Apr 2017
Current
Potential
84
84
Property Type
Flat
Built Form
Mid-Terrace
Constructed
N/A
Certificate History
28 Apr 2017
84
84
Total Floor Area
50 sq m
Current CO2 Emissions Level
0.6
Potential CO2 Emissions Level
0.6
CO2 per sq m per Year
12
Mains Gas Available
No
Habitable Rooms
0
Number of Extensions
0
Address
Flat 15 Denver Court, 1, Guardian Avenue
Date
2 May 2017
Current
Potential
83
83
Property Type
Flat
Built Form
Mid-Terrace
Constructed
N/A
Certificate History
2 May 2017
83
83
Total Floor Area
69 sq m
Current CO2 Emissions Level
0.9
Potential CO2 Emissions Level
0.9
CO2 per sq m per Year
13
Mains Gas Available
No
Habitable Rooms
0
Number of Extensions
0
Address
Flat 16, Denver Court
Date
15 Aug 2023
Current
Potential
81
81
Property Type
Flat
Built Form
Mid-Terrace
Constructed
2012 onwards
Certificate History
15 Aug 2023
81
81
Total Floor Area
72 sq m
Current CO2 Emissions Level
1.5
Potential CO2 Emissions Level
1.5
CO2 per sq m per Year
20
Mains Gas Available
No
Habitable Rooms
3
Number of Extensions
0
Address
Flat 16 Denver Court, 1, Guardian Avenue
Date
17 Mar 2017
Current
Potential
85
85
Property Type
Flat
Built Form
Mid-Terrace
Constructed
N/A
Certificate History
17 Mar 2017
85
85
Total Floor Area
72 sq m
Current CO2 Emissions Level
0.5
Potential CO2 Emissions Level
0.5
CO2 per sq m per Year
7
Mains Gas Available
No
Habitable Rooms
0
Number of Extensions
0
Address
Flat 17 Denver Court, 1, Guardian Avenue
Date
3 May 2017
Current
Potential
82
82
Property Type
Flat
Built Form
Mid-Terrace
Constructed
N/A
Certificate History
3 May 2017
82
82
Total Floor Area
60 sq m
Current CO2 Emissions Level
0.9
Potential CO2 Emissions Level
0.9
CO2 per sq m per Year
14
Mains Gas Available
No
Habitable Rooms
0
Number of Extensions
0
Address
Flat 18 Denver Court, 1, Guardian Avenue
Date
19 Jan 2017
Current
Potential
86
86
Property Type
Flat
Built Form
Mid-Terrace
Constructed
N/A
Certificate History
19 Jan 2017
86
86
12 Dec 2016
86
86
Total Floor Area
76 sq m
Current CO2 Emissions Level
0.5
Potential CO2 Emissions Level
0.5
CO2 per sq m per Year
6
Mains Gas Available
No
Habitable Rooms
0
Number of Extensions
0
Address
Flat 19 Denver Court, 1, Guardian Avenue
Date
19 Jan 2017
Current
Potential
84
84
Property Type
Flat
Built Form
Mid-Terrace
Constructed
N/A
Certificate History
19 Jan 2017
84
84
12 Dec 2016
84
84
Total Floor Area
58 sq m
Current CO2 Emissions Level
0.4
Potential CO2 Emissions Level
0.4
CO2 per sq m per Year
8
Mains Gas Available
No
Habitable Rooms
0
Number of Extensions
0
Address
Flat 2 Denver Court, 1, Guardian Avenue
Date
2 May 2017
Current
Potential
85
85
Property Type
Flat
Built Form
Mid-Terrace
Constructed
N/A
Certificate History
2 May 2017
85
85
Total Floor Area
50 sq m
Current CO2 Emissions Level
0.6
Potential CO2 Emissions Level
0.6
CO2 per sq m per Year
11
Mains Gas Available
No
Habitable Rooms
0
Number of Extensions
0
Address
Flat 20, Denver Court
Date
15 Aug 2023
Current
Potential
82
82
Property Type
Flat
Built Form
Mid-Terrace
Constructed
2012 onwards
Certificate History
15 Aug 2023
82
82
Total Floor Area
50 sq m
Current CO2 Emissions Level
0.9
Potential CO2 Emissions Level
0.9
CO2 per sq m per Year
18
Mains Gas Available
No
Habitable Rooms
3
Number of Extensions
0
Address
Flat 20 Denver Court, 1, Guardian Avenue
Date
19 Jan 2017
Current
Potential
84
84
Property Type
Flat
Built Form
Mid-Terrace
Constructed
N/A
Certificate History
19 Jan 2017
84
84
12 Dec 2016
84
84
Total Floor Area
50 sq m
Current CO2 Emissions Level
0.4
Potential CO2 Emissions Level
0.4
CO2 per sq m per Year
8
Mains Gas Available
No
Habitable Rooms
0
Number of Extensions
0
Address
Flat 21 Denver Court, 1, Guardian Avenue
Date
19 Jan 2017
Current
Potential
84
84
Property Type
Flat
Built Form
Mid-Terrace
Constructed
N/A
Certificate History
19 Jan 2017
84
84
12 Dec 2016
84
84
Total Floor Area
72 sq m
Current CO2 Emissions Level
0.5
Potential CO2 Emissions Level
0.5
CO2 per sq m per Year
7
Mains Gas Available
No
Habitable Rooms
0
Number of Extensions
0
Address
Flat 22, Denver Court
Date
15 Aug 2023
Current
Potential
83
83
Property Type
Flat
Built Form
Mid-Terrace
Constructed
2012 onwards
Certificate History
15 Aug 2023
83
83
Total Floor Area
72 sq m
Current CO2 Emissions Level
1.2
Potential CO2 Emissions Level
1.2
CO2 per sq m per Year
16
Mains Gas Available
No
Habitable Rooms
3
Number of Extensions
0
Address
Flat 22 Denver Court, 1, Guardian Avenue
Date
19 Jan 2017
Current
Potential
86
86
Property Type
Flat
Built Form
Mid-Terrace
Constructed
N/A
Certificate History
19 Jan 2017
86
86
12 Dec 2016
86
86
Total Floor Area
71 sq m
Current CO2 Emissions Level
0.4
Potential CO2 Emissions Level
0.4
CO2 per sq m per Year
6
Mains Gas Available
No
Habitable Rooms
0
Number of Extensions
0
Address
Flat 23 Denver Court, 1, Guardian Avenue
Date
12 Dec 2016
Current
Potential
86
86
Property Type
Flat
Built Form
Mid-Terrace
Constructed
N/A
Certificate History
12 Dec 2016
86
86
Total Floor Area
76 sq m
Current CO2 Emissions Level
0.5
Potential CO2 Emissions Level
0.5
CO2 per sq m per Year
6
Mains Gas Available
No
Habitable Rooms
0
Number of Extensions
0
Address
Flat 24 Denver Court, 1, Guardian Avenue
Date
12 Dec 2016
Current
Potential
86
86
Property Type
Flat
Built Form
Mid-Terrace
Constructed
N/A
Certificate History
12 Dec 2016
86
86
Total Floor Area
71 sq m
Current CO2 Emissions Level
0.5
Potential CO2 Emissions Level
0.5
CO2 per sq m per Year
6
Mains Gas Available
No
Habitable Rooms
0
Number of Extensions
0
Address
Flat 25 Denver Court, 1, Guardian Avenue
Date
12 Dec 2016
Current
Potential
84
84
Property Type
Flat
Built Form
Mid-Terrace
Constructed
N/A
Certificate History
12 Dec 2016
84
84
Total Floor Area
50 sq m
Current CO2 Emissions Level
0.4
Potential CO2 Emissions Level
0.4
CO2 per sq m per Year
8
Mains Gas Available
No
Habitable Rooms
0
Number of Extensions
0
Address
Flat 26 Denver Court, 1, Guardian Avenue
Date
12 Dec 2016
Current
Potential
86
86
Property Type
Flat
Built Form
Mid-Terrace
Constructed
N/A
Certificate History
12 Dec 2016
86
86
Total Floor Area
72 sq m
Current CO2 Emissions Level
0.5
Potential CO2 Emissions Level
0.5
CO2 per sq m per Year
6
Mains Gas Available
No
Habitable Rooms
0
Number of Extensions
0
Address
Flat 27 Denver Court, 1, Guardian Avenue
Date
12 Dec 2016
Current
Potential
86
86
Property Type
Flat
Built Form
Mid-Terrace
Constructed
N/A
Certificate History
12 Dec 2016
86
86
Total Floor Area
71 sq m
Current CO2 Emissions Level
0.4
Potential CO2 Emissions Level
0.4
CO2 per sq m per Year
6
Mains Gas Available
No
Habitable Rooms
0
Number of Extensions
0
Address
Flat 28 Denver Court, 1, Guardian Avenue
Date
12 Dec 2016
Current
Potential
86
86
Property Type
Flat
Built Form
Mid-Terrace
Constructed
N/A
Certificate History
12 Dec 2016
86
86
Total Floor Area
76 sq m
Current CO2 Emissions Level
0.5
Potential CO2 Emissions Level
0.5
CO2 per sq m per Year
6
Mains Gas Available
No
Habitable Rooms
0
Number of Extensions
0
Address
Flat 29 Denver Court, 1, Guardian Avenue
Date
12 Dec 2016
Current
Potential
86
86
Property Type
Flat
Built Form
Mid-Terrace
Constructed
N/A
Certificate History
12 Dec 2016
86
86
Total Floor Area
71 sq m
Current CO2 Emissions Level
0.5
Potential CO2 Emissions Level
0.5
CO2 per sq m per Year
6
Mains Gas Available
No
Habitable Rooms
0
Number of Extensions
0
Address
Flat 3 Denver Court, 1, Guardian Avenue
Date
2 May 2017
Current
Potential
85
85
Property Type
Flat
Built Form
Mid-Terrace
Constructed
N/A
Certificate History
2 May 2017
85
85
Total Floor Area
69 sq m
Current CO2 Emissions Level
0.7
Potential CO2 Emissions Level
0.7
CO2 per sq m per Year
11
Mains Gas Available
No
Habitable Rooms
0
Number of Extensions
0
Address
Flat 30 Denver Court, 1, Guardian Avenue
Date
12 Dec 2016
Current
Potential
84
84
Property Type
Flat
Built Form
Mid-Terrace
Constructed
N/A
Certificate History
12 Dec 2016
84
84
Total Floor Area
50 sq m
Current CO2 Emissions Level
0.4
Potential CO2 Emissions Level
0.4
CO2 per sq m per Year
8
Mains Gas Available
No
Habitable Rooms
0
Number of Extensions
0
Address
Flat 31 Denver Court, 1, Guardian Avenue
Date
19 Jan 2017
Current
Potential
85
85
Property Type
Flat
Built Form
Mid-Terrace
Constructed
N/A
Certificate History
19 Jan 2017
85
85
12 Dec 2016
86
86
Total Floor Area
72 sq m
Current CO2 Emissions Level
0.5
Potential CO2 Emissions Level
0.5
CO2 per sq m per Year
7
Mains Gas Available
No
Habitable Rooms
0
Number of Extensions
0
Address
Flat 32 Denver Court, 1, Guardian Avenue
Date
12 Dec 2016
Current
Potential
86
86
Property Type
Flat
Built Form
Mid-Terrace
Constructed
N/A
Certificate History
12 Dec 2016
86
86
Total Floor Area
71 sq m
Current CO2 Emissions Level
0.4
Potential CO2 Emissions Level
0.4
CO2 per sq m per Year
6
Mains Gas Available
No
Habitable Rooms
0
Number of Extensions
0
Address
Flat 33 Denver Court, 1, Guardian Avenue
Date
12 Dec 2016
Current
Potential
86
86
Property Type
Flat
Built Form
Mid-Terrace
Constructed
N/A
Certificate History
12 Dec 2016
86
86
Total Floor Area
76 sq m
Current CO2 Emissions Level
0.5
Potential CO2 Emissions Level
0.5
CO2 per sq m per Year
6
Mains Gas Available
No
Habitable Rooms
0
Number of Extensions
0
Address
Flat 34 Denver Court, 1, Guardian Avenue
Date
12 Dec 2016
Current
Potential
86
86
Property Type
Flat
Built Form
Mid-Terrace
Constructed
N/A
Certificate History
12 Dec 2016
86
86
Total Floor Area
71 sq m
Current CO2 Emissions Level
0.5
Potential CO2 Emissions Level
0.5
CO2 per sq m per Year
6
Mains Gas Available
No
Habitable Rooms
0
Number of Extensions
0
Address
Flat 35 Denver Court, 1, Guardian Avenue
Date
12 Dec 2016
Current
Potential
84
84
Property Type
Flat
Built Form
Mid-Terrace
Constructed
N/A
Certificate History
12 Dec 2016
84
84
Total Floor Area
50 sq m
Current CO2 Emissions Level
0.4
Potential CO2 Emissions Level
0.4
CO2 per sq m per Year
8
Mains Gas Available
No
Habitable Rooms
0
Number of Extensions
0
Address
Flat 36 Denver Court, 1, Guardian Avenue
Date
12 Dec 2016
Current
Potential
85
85
Property Type
Flat
Built Form
Mid-Terrace
Constructed
N/A
Certificate History
12 Dec 2016
85
85
Total Floor Area
72 sq m
Current CO2 Emissions Level
0.5
Potential CO2 Emissions Level
0.5
CO2 per sq m per Year
7
Mains Gas Available
No
Habitable Rooms
0
Number of Extensions
0
Address
Flat 37 Denver Court, 1, Guardian Avenue
Date
12 Dec 2016
Current
Potential
86
86
Property Type
Flat
Built Form
Mid-Terrace
Constructed
N/A
Certificate History
12 Dec 2016
86
86
Total Floor Area
71 sq m
Current CO2 Emissions Level
0.4
Potential CO2 Emissions Level
0.4
CO2 per sq m per Year
6
Mains Gas Available
No
Habitable Rooms
0
Number of Extensions
0
Address
Flat 38 Denver Court, 1, Guardian Avenue
Date
12 Dec 2016
Current
Potential
84
84
Property Type
Flat
Built Form
Mid-Terrace
Constructed
N/A
Certificate History
12 Dec 2016
84
84
Total Floor Area
76 sq m
Current CO2 Emissions Level
0.6
Potential CO2 Emissions Level
0.6
CO2 per sq m per Year
8
Mains Gas Available
No
Habitable Rooms
0
Number of Extensions
0
Address
Flat 39 Denver Court, 1, Guardian Avenue
Date
12 Dec 2016
Current
Potential
84
84
Property Type
Flat
Built Form
Mid-Terrace
Constructed
N/A
Certificate History
12 Dec 2016
84
84
Total Floor Area
71 sq m
Current CO2 Emissions Level
0.5
Potential CO2 Emissions Level
0.5
CO2 per sq m per Year
7
Mains Gas Available
No
Habitable Rooms
0
Number of Extensions
0
Address
Flat 4 Denver Court, 1, Guardian Avenue
Date
2 May 2017
Current
Potential
86
86
Property Type
Flat
Built Form
Mid-Terrace
Constructed
N/A
Certificate History
2 May 2017
86
86
Total Floor Area
72 sq m
Current CO2 Emissions Level
0.7
Potential CO2 Emissions Level
0.7
CO2 per sq m per Year
10
Mains Gas Available
No
Habitable Rooms
0
Number of Extensions
0
Address
Flat 40 Denver Court, 1, Guardian Avenue
Date
12 Dec 2016
Current
Potential
84
84
Property Type
Flat
Built Form
Mid-Terrace
Constructed
N/A
Certificate History
12 Dec 2016
84
84
Total Floor Area
50 sq m
Current CO2 Emissions Level
0.4
Potential CO2 Emissions Level
0.4
CO2 per sq m per Year
8
Mains Gas Available
No
Habitable Rooms
0
Number of Extensions
0
Address
Flat 41 Denver Court, 1, Guardian Avenue
Date
12 Dec 2016
Current
Potential
84
84
Property Type
Flat
Built Form
Mid-Terrace
Constructed
N/A
Certificate History
12 Dec 2016
84
84
Total Floor Area
72 sq m
Current CO2 Emissions Level
0.5
Potential CO2 Emissions Level
0.5
CO2 per sq m per Year
7
Mains Gas Available
No
Habitable Rooms
0
Number of Extensions
0
Address
Flat 42 Denver Court, 1, Guardian Avenue
Date
12 Dec 2016
Current
Potential
84
84
Property Type
Flat
Built Form
Mid-Terrace
Constructed
N/A
Certificate History
12 Dec 2016
84
84
Total Floor Area
71 sq m
Current CO2 Emissions Level
0.5
Potential CO2 Emissions Level
0.5
CO2 per sq m per Year
7
Mains Gas Available
No
Habitable Rooms
0
Number of Extensions
0
Address
Flat 43 Denver Court, 1, Guardian Avenue
Date
2 Jun 2017
Current
Potential
83
83
Property Type
Flat
Built Form
Mid-Terrace
Constructed
N/A
Certificate History
2 Jun 2017
83
83
Total Floor Area
78 sq m
Current CO2 Emissions Level
0.6
Potential CO2 Emissions Level
0.6
CO2 per sq m per Year
8
Mains Gas Available
No
Habitable Rooms
0
Number of Extensions
0
Address
Flat 5 Denver Court, 1, Guardian Avenue
Date
2 May 2017
Current
Potential
86
86
Property Type
Flat
Built Form
Mid-Terrace
Constructed
N/A
Certificate History
2 May 2017
86
86
Total Floor Area
74 sq m
Current CO2 Emissions Level
0.7
Potential CO2 Emissions Level
0.7
CO2 per sq m per Year
9
Mains Gas Available
No
Habitable Rooms
0
Number of Extensions
0
Address
Flat 6 Denver Court, 1, Guardian Avenue
Date
28 Apr 2017
Current
Potential
85
85
Property Type
Flat
Built Form
Mid-Terrace
Constructed
N/A
Certificate History
28 Apr 2017
85
85
Total Floor Area
50 sq m
Current CO2 Emissions Level
0.5
Potential CO2 Emissions Level
0.5
CO2 per sq m per Year
11
Mains Gas Available
No
Habitable Rooms
0
Number of Extensions
0
Address
Flat 7 Denver Court, 1, Guardian Avenue
Date
28 Apr 2017
Current
Potential
85
85
Property Type
Flat
Built Form
Mid-Terrace
Constructed
N/A
Certificate History
28 Apr 2017
85
85
Total Floor Area
69 sq m
Current CO2 Emissions Level
0.7
Potential CO2 Emissions Level
0.7
CO2 per sq m per Year
11
Mains Gas Available
No
Habitable Rooms
0
Number of Extensions
0
Address
Flat 8, Denver Court
Date
15 Aug 2023
Current
Potential
83
83
Property Type
Flat
Built Form
Mid-Terrace
Constructed
2012 onwards
Certificate History
15 Aug 2023
83
83
Total Floor Area
72 sq m
Current CO2 Emissions Level
1.1
Potential CO2 Emissions Level
1.1
CO2 per sq m per Year
16
Mains Gas Available
No
Habitable Rooms
3
Number of Extensions
0
Address
Flat 8 Denver Court, 1, Guardian Avenue
Date
28 Apr 2017
Current
Potential
86
86
Property Type
Flat
Built Form
Mid-Terrace
Constructed
N/A
Certificate History
28 Apr 2017
86
86
Total Floor Area
72 sq m
Current CO2 Emissions Level
0.7
Potential CO2 Emissions Level
0.7
CO2 per sq m per Year
10
Mains Gas Available
No
Habitable Rooms
0
Number of Extensions
0
Address
Flat 9 Denver Court, 1, Guardian Avenue
Date
28 Apr 2017
Current
Potential
86
86
Property Type
Flat
Built Form
Mid-Terrace
Constructed
N/A
Certificate History
28 Apr 2017
86
86
Total Floor Area
74 sq m
Current CO2 Emissions Level
0.7
Potential CO2 Emissions Level
0.7
CO2 per sq m per Year
9
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 2026.