PROPERTY ENERGY EFFICIENCY CERTIFICATE DETAILS
Collett Road, HEMEL HEMPSTEAD, HP1 1HY

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 Collett Road, HP1 1HY 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 Collett Road, HEMEL HEMPSTEAD, HP1 1HY
Period Covered: 2008 - 31 October 2024

Address
Inspection Date
Current
Potential
Property Type
Built Form
Constructed
Address
11a, Collett road
Date
24 Sep 2020
Current
Potential
73
85
Property Type
House
Built Form
Detached
Constructed
2003-2006
+
Certificate History
24 Sep 2020
73
85
Total Floor Area
120 sq m
Current CO2 Emissions Level
3.6
Potential CO2 Emissions Level
2.0
CO2 per sq m per Year
30
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
13 Collett Road
Date
13 Sep 2023
Current
Potential
46
71
Property Type
House
Built Form
Semi-Detached
Constructed
before 1900
+
Certificate History
13 Sep 2023
46
71
9 May 2011
41
42
Total Floor Area
190 sq m
Current CO2 Emissions Level
12.0
Potential CO2 Emissions Level
6.3
CO2 per sq m per Year
62
Mains Gas Available
Yes
Habitable Rooms
7
Number of Extensions
4
Address
15 COLLETT ROAD
Date
6 Jul 2021
Current
Potential
62
82
Property Type
House
Built Form
Semi-Detached
Constructed
before 1900
+
Certificate History
6 Jul 2021
62
82
Total Floor Area
171 sq m
Current CO2 Emissions Level
7.7
Potential CO2 Emissions Level
3.5
CO2 per sq m per Year
45
Mains Gas Available
Yes
Habitable Rooms
8
Number of Extensions
4
Address
15 Collett Road
Date
17 Mar 2014
Current
Potential
49
76
Property Type
House
Built Form
Semi-Detached
Constructed
before 1900
+
Certificate History
17 Mar 2014
49
76
8 Oct 2010
34
42
Total Floor Area
149 sq m
Current CO2 Emissions Level
8.2
Potential CO2 Emissions Level
3.6
CO2 per sq m per Year
55
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
0
Address
15a Collett Road
Date
7 Mar 2016
Current
Potential
61
76
Property Type
House
Built Form
Detached
Constructed
1967-1975
+
Certificate History
7 Mar 2016
61
76
25 Sep 2014
67
79
Total Floor Area
257 sq m
Current CO2 Emissions Level
9.7
Potential CO2 Emissions Level
5.9
CO2 per sq m per Year
38
Mains Gas Available
Yes
Habitable Rooms
9
Number of Extensions
1
Address
17 Collett Road
Date
6 Jun 2022
Current
Potential
62
83
Property Type
House
Built Form
End-Terrace
Constructed
before 1900
+
Certificate History
6 Jun 2022
62
83
Total Floor Area
103 sq m
Current CO2 Emissions Level
5.0
Potential CO2 Emissions Level
2.0
CO2 per sq m per Year
48
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
3
Address
2 Collett Road
Date
25 Sep 2013
Current
Potential
48
67
Property Type
House
Built Form
Detached
Constructed
1900-1929
+
Certificate History
25 Sep 2013
48
67
Total Floor Area
143 sq m
Current CO2 Emissions Level
8.1
Potential CO2 Emissions Level
5.2
CO2 per sq m per Year
56
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
21 Collett Road
Date
25 Jul 2022
Current
Potential
46
82
Property Type
House
Built Form
Mid-Terrace
Constructed
before 1900
+
Certificate History
25 Jul 2022
46
82
25 Jul 2022
48
82
Total Floor Area
127 sq m
Current CO2 Emissions Level
7.9
Potential CO2 Emissions Level
2.7
CO2 per sq m per Year
62
Mains Gas Available
Yes
Habitable Rooms
7
Number of Extensions
2
Address
3 Collett Road
Date
22 May 2014
Current
Potential
38
74
Property Type
House
Built Form
Detached
Constructed
1900-1929
+
Certificate History
22 May 2014
38
74
Total Floor Area
95 sq m
Current CO2 Emissions Level
7.3
Potential CO2 Emissions Level
2.8
CO2 per sq m per Year
76
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
3
Address
31 Collett Road
Date
28 Nov 2022
Current
Potential
49
78
Property Type
House
Built Form
Mid-Terrace
Constructed
before 1900
+
Certificate History
28 Nov 2022
49
78
Total Floor Area
102 sq m
Current CO2 Emissions Level
6.9
Potential CO2 Emissions Level
2.8
CO2 per sq m per Year
67
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
4
Address
33 Collett Road
Date
13 Jun 2012
Current
Potential
48
75
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
+
Certificate History
13 Jun 2012
48
75
Total Floor Area
116 sq m
Current CO2 Emissions Level
6.9
Potential CO2 Emissions Level
3.2
CO2 per sq m per Year
59
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
0
Address
35 Collett Road
Date
17 Jul 2014
Current
Potential
63
88
Property Type
House
Built Form
Mid-Terrace
Constructed
before 1900
+
Certificate History
17 Jul 2014
63
88
Total Floor Area
89 sq m
Current CO2 Emissions Level
3.8
Potential CO2 Emissions Level
0.9
CO2 per sq m per Year
43
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
37 Collett Road
Date
6 Jul 2009
Current
Potential
60
62
Property Type
House
Built Form
End-Terrace
Constructed
1900-1929
+
Certificate History
6 Jul 2009
60
62
Total Floor Area
145 sq m
Current CO2 Emissions Level
6.5
Potential CO2 Emissions Level
6.4
CO2 per sq m per Year
44
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
1
Address
9 Collett Road
Date
11 Mar 2016
Current
Potential
52
71
Property Type
House
Built Form
Semi-Detached
Constructed
1930-1949
+
Certificate History
11 Mar 2016
52
71
Total Floor Area
125 sq m
Current CO2 Emissions Level
7.3
Potential CO2 Emissions Level
4.6
CO2 per sq m per Year
58
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
4
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.