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PROPERTY ENERGY EFFICIENCY CERTIFICATE DETAILS
Northumberland Avenue, AYLESBURY, HP21 7HL

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 Northumberland Avenue, HP21 7HL 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 Northumberland Avenue, AYLESBURY, HP21 7HL
Period Covered: 2008 - 31 January 2025

Address
Inspection Date
Current
Potential
Property Type
Built Form
Constructed
Address
53 Northumberland Avenue
Date
25 Apr 2022
Current
Potential
67
80
Property Type
House
Built Form
Semi-Detached
Constructed
1950-1966
+
Certificate History
25 Apr 2022
67
80
Total Floor Area
106 sq m
Current CO2 Emissions Level
4.0
Potential CO2 Emissions Level
2.4
CO2 per sq m per Year
37
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
2
Address
61 NORTHUMBERLAND AVENUE
Date
8 Jul 2021
Current
Potential
55
81
Property Type
House
Built Form
Semi-Detached
Constructed
1950-1966
+
Certificate History
8 Jul 2021
55
81
Total Floor Area
91 sq m
Current CO2 Emissions Level
5.2
Potential CO2 Emissions Level
2.1
CO2 per sq m per Year
57
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
63 Northumberland Avenue
Date
4 May 2016
Current
Potential
63
85
Property Type
House
Built Form
Semi-Detached
Constructed
1950-1966
+
Certificate History
4 May 2016
63
85
Total Floor Area
82 sq m
Current CO2 Emissions Level
3.7
Potential CO2 Emissions Level
1.3
CO2 per sq m per Year
45
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
64 Northumberland Avenue
Date
10 Feb 2014
Current
Potential
68
86
Property Type
House
Built Form
Semi-Detached
Constructed
1950-1966
+
Certificate History
10 Feb 2014
68
86
18 Mar 2013
46
86
Total Floor Area
97 sq m
Current CO2 Emissions Level
3.4
Potential CO2 Emissions Level
1.3
CO2 per sq m per Year
35
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
65 Northumberland Avenue
Date
5 Apr 2011
Current
Potential
74
76
Property Type
House
Built Form
Semi-Detached
Constructed
1950-1966
+
Certificate History
5 Apr 2011
74
76
Total Floor Area
86 sq m
Current CO2 Emissions Level
2.8
Potential CO2 Emissions Level
2.7
CO2 per sq m per Year
32
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
67 Northumberland Avenue
Date
2 May 2017
Current
Potential
59
80
Property Type
House
Built Form
Semi-Detached
Constructed
1967-1975
+
Certificate History
2 May 2017
59
80
Total Floor Area
82 sq m
Current CO2 Emissions Level
4.1
Potential CO2 Emissions Level
1.7
CO2 per sq m per Year
50
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
68 Northumberland Avenue
Date
26 Nov 2014
Current
Potential
72
87
Property Type
House
Built Form
Semi-Detached
Constructed
1950-1966
+
Certificate History
26 Nov 2014
72
87
10 Mar 2011
68
75
Total Floor Area
118 sq m
Current CO2 Emissions Level
3.4
Potential CO2 Emissions Level
1.4
CO2 per sq m per Year
29
Mains Gas Available
Yes
Habitable Rooms
7
Number of Extensions
1
Address
70 Northumberland Avenue
Date
30 Sep 2013
Current
Potential
58
84
Property Type
House
Built Form
Semi-Detached
Constructed
1950-1966
+
Certificate History
30 Sep 2013
58
84
Total Floor Area
112 sq m
Current CO2 Emissions Level
5.2
Potential CO2 Emissions Level
1.8
CO2 per sq m per Year
47
Mains Gas Available
Yes
Habitable Rooms
7
Number of Extensions
2
Address
72 Northumberland Avenue
Date
6 Dec 2013
Current
Potential
72
83
Property Type
House
Built Form
Semi-Detached
Constructed
1950-1966
+
Certificate History
6 Dec 2013
72
83
Total Floor Area
129 sq m
Current CO2 Emissions Level
3.7
Potential CO2 Emissions Level
2.1
CO2 per sq m per Year
29
Mains Gas Available
Yes
Habitable Rooms
7
Number of Extensions
1
Address
73 Northumberland Avenue
Date
18 Oct 2022
Current
Potential
64
77
Property Type
House
Built Form
Semi-Detached
Constructed
1950-1966
+
Certificate History
18 Oct 2022
64
77
Total Floor Area
84 sq m
Current CO2 Emissions Level
3.8
Potential CO2 Emissions Level
2.5
CO2 per sq m per Year
45
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
74 Northumberland Avenue
Date
23 Feb 2015
Current
Potential
54
86
Property Type
House
Built Form
Semi-Detached
Constructed
1950-1966
+
Certificate History
23 Feb 2015
54
86
Total Floor Area
83 sq m
Current CO2 Emissions Level
5.0
Potential CO2 Emissions Level
1.2
CO2 per sq m per Year
60
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
75 Northumberland Avenue
Date
17 Dec 2009
Current
Potential
62
77
Property Type
House
Built Form
Semi-Detached
Constructed
1950-1966
+
Certificate History
17 Dec 2009
62
77
Total Floor Area
105 sq m
Current CO2 Emissions Level
5.0
Potential CO2 Emissions Level
2.9
CO2 per sq m per Year
47
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
1
Address
80 Northumberland Avenue
Date
5 Dec 2023
Current
Potential
57
86
Property Type
House
Built Form
Semi-Detached
Constructed
1930-1949
+
Certificate History
5 Dec 2023
57
86
Total Floor Area
83 sq m
Current CO2 Emissions Level
4.6
Potential CO2 Emissions Level
1.3
CO2 per sq m per Year
55
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
82 Northumberland Avenue
Date
23 May 2017
Current
Potential
64
83
Property Type
House
Built Form
Semi-Detached
Constructed
1950-1966
+
Certificate History
23 May 2017
64
83
Total Floor Area
92 sq m
Current CO2 Emissions Level
3.9
Potential CO2 Emissions Level
1.6
CO2 per sq m per Year
42
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
1
Address
84 Northumberland Avenue
Date
11 Nov 2013
Current
Potential
70
82
Property Type
House
Built Form
Semi-Detached
Constructed
1930-1949
+
Certificate History
11 Nov 2013
70
82
Total Floor Area
83 sq m
Current CO2 Emissions Level
2.7
Potential CO2 Emissions Level
1.4
CO2 per sq m per Year
32
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
86 Northumberland Avenue
Date
7 May 2018
Current
Potential
71
80
Property Type
House
Built Form
Semi-Detached
Constructed
1950-1966
+
Certificate History
7 May 2018
71
80
6 Apr 2014
58
88
Total Floor Area
118 sq m
Current CO2 Emissions Level
3.7
Potential CO2 Emissions Level
2.5
CO2 per sq m per Year
31
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
3
Address
90 Northumberland Avenue
Date
12 Dec 2013
Current
Potential
57
83
Property Type
House
Built Form
Semi-Detached
Constructed
1950-1966
+
Certificate History
12 Dec 2013
57
83
Total Floor Area
85 sq m
Current CO2 Emissions Level
4.2
Potential CO2 Emissions Level
1.4
CO2 per sq m per Year
49
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
1
Address
92 Northumberland Avenue
Date
2 Feb 2017
Current
Potential
61
85
Property Type
House
Built Form
Semi-Detached
Constructed
1950-1966
+
Certificate History
2 Feb 2017
61
85
31 Aug 2016
66
86
30 Jul 2015
40
84
Total Floor Area
95 sq m
Current CO2 Emissions Level
4.6
Potential CO2 Emissions Level
1.6
CO2 per sq m per Year
49
Mains Gas Available
Yes
Habitable Rooms
6
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.