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PROPERTY ENERGY EFFICIENCY CERTIFICATE DETAILS
Langley Avenue, HEMEL HEMPSTEAD, HP3 9NS

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 Langley Avenue, HP3 9NS 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 Langley Avenue, HEMEL HEMPSTEAD, HP3 9NS
Period Covered: 2008 - 31 January 2025

Address
Inspection Date
Current
Potential
Property Type
Built Form
Constructed
Address
18 Langley Avenue
Date
25 Jun 2015
Current
Potential
60
78
Property Type
House
Built Form
Semi-Detached
Constructed
1930-1949
+
Certificate History
25 Jun 2015
60
78
Total Floor Area
104 sq m
Current CO2 Emissions Level
5.3
Potential CO2 Emissions Level
2.8
CO2 per sq m per Year
51
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
2
Address
22 Langley Avenue
Date
5 Jan 2012
Current
Potential
67
72
Property Type
House
Built Form
Semi-Detached
Constructed
1950-1966
+
Certificate History
5 Jan 2012
67
72
Total Floor Area
74 sq m
Current CO2 Emissions Level
3.0
Potential CO2 Emissions Level
2.5
CO2 per sq m per Year
40
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
2
Address
24 Langley Avenue
Date
2 Sep 2013
Current
Potential
68
83
Property Type
House
Built Form
Semi-Detached
Constructed
1930-1949
+
Certificate History
2 Sep 2013
68
83
18 Oct 2010
64
71
Total Floor Area
138 sq m
Current CO2 Emissions Level
4.5
Potential CO2 Emissions Level
2.4
CO2 per sq m per Year
33
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
2
Address
32 Langley Avenue
Date
20 Sep 2015
Current
Potential
69
86
Property Type
House
Built Form
Semi-Detached
Constructed
1950-1966
+
Certificate History
20 Sep 2015
69
86
Total Floor Area
65 sq m
Current CO2 Emissions Level
2.5
Potential CO2 Emissions Level
1.1
CO2 per sq m per Year
39
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
34 Langley Avenue
Date
10 Jun 2024
Current
Potential
66
81
Property Type
House
Built Form
Semi-Detached
Constructed
1950-1966
+
Certificate History
10 Jun 2024
66
81
Total Floor Area
93 sq m
Current CO2 Emissions Level
3.6
Potential CO2 Emissions Level
1.9
CO2 per sq m per Year
39
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
1
Address
38 Langley Avenue
Date
6 May 2014
Current
Potential
63
84
Property Type
House
Built Form
Semi-Detached
Constructed
1930-1949
+
Certificate History
6 May 2014
63
84
Total Floor Area
75 sq m
Current CO2 Emissions Level
3.3
Potential CO2 Emissions Level
1.2
CO2 per sq m per Year
44
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
1
Address
39 Langley Avenue
Date
25 Jan 2022
Current
Potential
67
84
Property Type
House
Built Form
Semi-Detached
Constructed
1930-1949
+
Certificate History
25 Jan 2022
67
84
20 Oct 2009
57
75
Total Floor Area
87 sq m
Current CO2 Emissions Level
3.6
Potential CO2 Emissions Level
1.7
CO2 per sq m per Year
41
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
2
Address
42 Langley Avenue
Date
2 May 2011
Current
Potential
43
57
Property Type
House
Built Form
Semi-Detached
Constructed
1950-1966
+
Certificate History
2 May 2011
43
57
Total Floor Area
94 sq m
Current CO2 Emissions Level
6.9
Potential CO2 Emissions Level
5.1
CO2 per sq m per Year
73
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
1
Address
44 Langley Avenue
Date
15 Oct 2013
Current
Potential
64
85
Property Type
House
Built Form
Semi-Detached
Constructed
1950-1966
+
Certificate History
15 Oct 2013
64
85
Total Floor Area
68 sq m
Current CO2 Emissions Level
3.0
Potential CO2 Emissions Level
1.1
CO2 per sq m per Year
44
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
1
Address
45 Langley Avenue
Date
8 May 2016
Current
Potential
60
81
Property Type
House
Built Form
Semi-Detached
Constructed
1930-1949
+
Certificate History
8 May 2016
60
81
21 May 2014
56
87
Total Floor Area
67 sq m
Current CO2 Emissions Level
3.7
Potential CO2 Emissions Level
1.7
CO2 per sq m per Year
55
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
46 Langley Avenue
Date
22 Nov 2022
Current
Potential
101
103
Property Type
House
Built Form
Semi-Detached
Constructed
2022
+
Certificate History
22 Nov 2022
101
103
Total Floor Area
80 sq m
Current CO2 Emissions Level
-0.3
Potential CO2 Emissions Level
-0.5
CO2 per sq m per Year
-4
Mains Gas Available
No
Habitable Rooms
0
Number of Extensions
0
Address
48 Langley Avenue
Date
22 Nov 2022
Current
Potential
101
103
Property Type
House
Built Form
Semi-Detached
Constructed
2022
+
Certificate History
22 Nov 2022
101
103
Total Floor Area
80 sq m
Current CO2 Emissions Level
-0.3
Potential CO2 Emissions Level
-0.5
CO2 per sq m per Year
-4
Mains Gas Available
No
Habitable Rooms
0
Number of Extensions
0
Address
49 Langley Avenue
Date
26 Mar 2015
Current
Potential
68
81
Property Type
House
Built Form
Semi-Detached
Constructed
1930-1949
+
Certificate History
26 Mar 2015
68
81
Total Floor Area
115 sq m
Current CO2 Emissions Level
3.9
Potential CO2 Emissions Level
2.3
CO2 per sq m per Year
34
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
3
Address
50 Langley Avenue
Date
22 Nov 2022
Current
Potential
99
101
Property Type
House
Built Form
Semi-Detached
Constructed
2022
+
Certificate History
22 Nov 2022
99
101
Total Floor Area
80 sq m
Current CO2 Emissions Level
-0.2
Potential CO2 Emissions Level
-0.3
CO2 per sq m per Year
-2
Mains Gas Available
No
Habitable Rooms
0
Number of Extensions
0
Address
51 Langley Avenue
Date
5 Nov 2015
Current
Potential
66
85
Property Type
House
Built Form
Semi-Detached
Constructed
1950-1966
+
Certificate History
5 Nov 2015
66
85
Total Floor Area
79 sq m
Current CO2 Emissions Level
3.4
Potential CO2 Emissions Level
1.5
CO2 per sq m per Year
43
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
1
Address
52 Langley Avenue
Date
22 Nov 2022
Current
Potential
103
103
Property Type
Flat
Built Form
Semi-Detached
Constructed
2022
+
Certificate History
22 Nov 2022
103
103
Total Floor Area
52 sq m
Current CO2 Emissions Level
-0.5
Potential CO2 Emissions Level
-0.5
CO2 per sq m per Year
-10
Mains Gas Available
No
Habitable Rooms
0
Number of Extensions
0
Address
53 Langley Avenue
Date
12 Apr 2012
Current
Potential
65
87
Property Type
House
Built Form
Semi-Detached
Constructed
1950-1966
+
Certificate History
12 Apr 2012
65
87
Total Floor Area
72 sq m
Current CO2 Emissions Level
3.0
Potential CO2 Emissions Level
0.9
CO2 per sq m per Year
42
Mains Gas Available
Yes
Habitable Rooms
5
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.