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PROPERTY ENERGY EFFICIENCY CERTIFICATE DETAILS
Long John, HEMEL HEMPSTEAD, HP3 9LS

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 Long John, HP3 9LS 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 Long John, HEMEL HEMPSTEAD, HP3 9LS
Period Covered: 2008 - 30 September 2024

Address
Inspection Date
Current
Potential
Property Type
Built Form
Constructed
Address
23 Long John
Date
8 Dec 2011
Current
Potential
70
72
Property Type
House
Built Form
Mid-Terrace
Constructed
1950-1966
+
Certificate History
8 Dec 2011
70
72
9 Jun 2009
69
78
Total Floor Area
74 sq m
Current CO2 Emissions Level
2.7
Potential CO2 Emissions Level
2.5
CO2 per sq m per Year
36
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
24 Long John
Date
26 Jun 2013
Current
Potential
71
85
Property Type
House
Built Form
Mid-Terrace
Constructed
1950-1966
+
Certificate History
26 Jun 2013
71
85
Total Floor Area
76 sq m
Current CO2 Emissions Level
2.4
Potential CO2 Emissions Level
1.0
CO2 per sq m per Year
32
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
25 Long John
Date
22 May 2011
Current
Potential
61
74
Property Type
House
Built Form
Mid-Terrace
Constructed
1950-1966
+
Certificate History
22 May 2011
61
74
Total Floor Area
86 sq m
Current CO2 Emissions Level
4.2
Potential CO2 Emissions Level
2.6
CO2 per sq m per Year
48
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
28 Long John
Date
6 Sep 2022
Current
Potential
66
84
Property Type
House
Built Form
Mid-Terrace
Constructed
1950-1966
+
Certificate History
6 Sep 2022
66
84
Total Floor Area
111 sq m
Current CO2 Emissions Level
4.5
Potential CO2 Emissions Level
2.0
CO2 per sq m per Year
41
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
1
Address
30 Long John
Date
3 Feb 2016
Current
Potential
40
74
Property Type
House
Built Form
Mid-Terrace
Constructed
1950-1966
+
Certificate History
3 Feb 2016
40
74
Total Floor Area
88 sq m
Current CO2 Emissions Level
7.5
Potential CO2 Emissions Level
3.1
CO2 per sq m per Year
85
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
31 Long John
Date
31 May 2020
Current
Potential
68
86
Property Type
House
Built Form
Mid-Terrace
Constructed
1967-1975
+
Certificate History
31 May 2020
68
86
Total Floor Area
88 sq m
Current CO2 Emissions Level
3.4
Potential CO2 Emissions Level
1.4
CO2 per sq m per Year
39
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
32 Long John
Date
22 Feb 2016
Current
Potential
46
90
Property Type
House
Built Form
Mid-Terrace
Constructed
1950-1966
+
Certificate History
22 Feb 2016
46
90
Total Floor Area
87 sq m
Current CO2 Emissions Level
7.7
Potential CO2 Emissions Level
2.2
CO2 per sq m per Year
88
Mains Gas Available
No
Habitable Rooms
5
Number of Extensions
1
Address
34 Long John
Date
31 Oct 2016
Current
Potential
62
82
Property Type
House
Built Form
Mid-Terrace
Constructed
1950-1966
+
Certificate History
31 Oct 2016
62
82
Total Floor Area
115 sq m
Current CO2 Emissions Level
5.3
Potential CO2 Emissions Level
2.5
CO2 per sq m per Year
46
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
0
Address
35 Long John
Date
7 Dec 2013
Current
Potential
72
89
Property Type
House
Built Form
Mid-Terrace
Constructed
1950-1966
+
Certificate History
7 Dec 2013
72
89
Total Floor Area
96 sq m
Current CO2 Emissions Level
2.8
Potential CO2 Emissions Level
0.8
CO2 per sq m per Year
29
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
36 Long John
Date
15 Jun 2009
Current
Potential
74
79
Property Type
House
Built Form
Mid-Terrace
Constructed
1950-1966
+
Certificate History
15 Jun 2009
74
79
Total Floor Area
96 sq m
Current CO2 Emissions Level
3.2
Potential CO2 Emissions Level
2.5
CO2 per sq m per Year
33
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
38 Long John
Date
2 Apr 2019
Current
Potential
75
88
Property Type
House
Built Form
Mid-Terrace
Constructed
1950-1966
+
Certificate History
2 Apr 2019
75
88
Total Floor Area
87 sq m
Current CO2 Emissions Level
2.4
Potential CO2 Emissions Level
1.2
CO2 per sq m per Year
28
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
39 Long John
Date
11 Jul 2024
Current
Potential
72
84
Property Type
House
Built Form
End-Terrace
Constructed
1950-1966
+
Certificate History
11 Jul 2024
72
84
7 Dec 2011
65
72
Total Floor Area
98 sq m
Current CO2 Emissions Level
3.2
Potential CO2 Emissions Level
1.8
CO2 per sq m per Year
33
Mains Gas Available
Yes
Habitable Rooms
4
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.

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