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PROPERTY ENERGY EFFICIENCY CERTIFICATE DETAILS
St. Julien Close, NORTHAMPTON, NN5 6QX

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 St. Julien Close, NN5 6QX 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 St. Julien Close, NORTHAMPTON, NN5 6QX
Period Covered: 2008 - 31 January 2025

Address
Inspection Date
Current
Potential
Property Type
Built Form
Constructed
Address
11 St. Julien Close, New Duston
Date
17 Mar 2022
Current
Potential
65
83
Property Type
House
Built Form
Detached
Constructed
1991-1995
+
Certificate History
17 Mar 2022
65
83
Total Floor Area
73 sq m
Current CO2 Emissions Level
3.3
Potential CO2 Emissions Level
1.6
CO2 per sq m per Year
46
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
15 St. Julien Close, New Duston
Date
7 Apr 2024
Current
Potential
73
84
Property Type
House
Built Form
Detached
Constructed
1991-1995
+
Certificate History
7 Apr 2024
73
84
29 Sep 2011
59
69
Total Floor Area
145 sq m
Current CO2 Emissions Level
4.3
Potential CO2 Emissions Level
2.7
CO2 per sq m per Year
30
Mains Gas Available
Yes
Habitable Rooms
8
Number of Extensions
2
Address
2 St. Julien Close, New Duston
Date
22 Jul 2009
Current
Potential
67
71
Property Type
House
Built Form
Detached
Constructed
1991-1995
+
Certificate History
22 Jul 2009
67
71
Total Floor Area
158 sq m
Current CO2 Emissions Level
4.9
Potential CO2 Emissions Level
4.5
CO2 per sq m per Year
37
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
0
Address
3 St. Julien Close, New Duston
Date
12 Sep 2010
Current
Potential
65
72
Property Type
House
Built Form
Detached
Constructed
1991-1995
+
Certificate History
12 Sep 2010
65
72
17 Dec 2021
70
82
Total Floor Area
129 sq m
Current CO2 Emissions Level
5.0
Potential CO2 Emissions Level
4.1
CO2 per sq m per Year
41
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
0
Address
4 St. Julien Close, New Duston
Date
5 May 2011
Current
Potential
57
66
Property Type
House
Built Form
Detached
Constructed
1983-1990
+
Certificate History
5 May 2011
57
66
Total Floor Area
109 sq m
Current CO2 Emissions Level
4.7
Potential CO2 Emissions Level
3.6
CO2 per sq m per Year
51
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
0
Address
5 St. Julien Close, New Duston
Date
18 Feb 2014
Current
Potential
67
84
Property Type
House
Built Form
Detached
Constructed
1983-1990
+
Certificate History
18 Feb 2014
67
84
Total Floor Area
67 sq m
Current CO2 Emissions Level
2.7
Potential CO2 Emissions Level
1.3
CO2 per sq m per Year
41
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
0
Address
9 St. Julien Close, New Duston
Date
9 May 2016
Current
Potential
71
84
Property Type
House
Built Form
Detached
Constructed
1991-1995
+
Certificate History
9 May 2016
71
84
Total Floor Area
116 sq m
Current CO2 Emissions Level
3.8
Potential CO2 Emissions Level
2.2
CO2 per sq m per Year
33
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
0
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.