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PROPERTY ENERGY EFFICIENCY CERTIFICATE DETAILS
Neptune Drive, HEMEL HEMPSTEAD, HP2 5QE

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 Neptune Drive, HP2 5QE 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 Neptune Drive, HEMEL HEMPSTEAD, HP2 5QE
Period Covered: 2008 - 31 January 2025

Address
Inspection Date
Current
Potential
Property Type
Built Form
Constructed
Address
20 Neptune Drive
Date
25 Jul 2016
Current
Potential
53
75
Property Type
House
Built Form
Detached
Constructed
1950-1966
+
Certificate History
25 Jul 2016
53
75
Total Floor Area
110 sq m
Current CO2 Emissions Level
6.6
Potential CO2 Emissions Level
3.5
CO2 per sq m per Year
60
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
1
Address
22 Neptune Drive
Date
7 May 2017
Current
Potential
67
80
Property Type
House
Built Form
Detached
Constructed
1967-1975
+
Certificate History
7 May 2017
67
80
Total Floor Area
134 sq m
Current CO2 Emissions Level
5.1
Potential CO2 Emissions Level
3.2
CO2 per sq m per Year
38
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
1
Address
24 Neptune Drive
Date
26 May 2016
Current
Potential
66
88
Property Type
House
Built Form
Detached
Constructed
1967-1975
+
Certificate History
26 May 2016
66
88
23 Mar 2009
40
68
Total Floor Area
98 sq m
Current CO2 Emissions Level
4.1
Potential CO2 Emissions Level
1.4
CO2 per sq m per Year
42
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
28 Neptune Drive
Date
29 May 2018
Current
Potential
67
86
Property Type
House
Built Form
Detached
Constructed
1976-1982
+
Certificate History
29 May 2018
67
86
Total Floor Area
94 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
4
Number of Extensions
0
Address
32 Neptune Drive
Date
7 Jul 2019
Current
Potential
64
80
Property Type
House
Built Form
Detached
Constructed
1950-1966
+
Certificate History
7 Jul 2019
64
80
Total Floor Area
106 sq m
Current CO2 Emissions Level
4.7
Potential CO2 Emissions Level
2.6
CO2 per sq m per Year
45
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
1
Address
36 Neptune Drive
Date
10 Jul 2017
Current
Potential
44
78
Property Type
House
Built Form
Detached
Constructed
1967-1975
+
Certificate History
10 Jul 2017
44
78
Total Floor Area
115 sq m
Current CO2 Emissions Level
8.3
Potential CO2 Emissions Level
3.1
CO2 per sq m per Year
72
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
1
Address
38 Neptune Drive
Date
4 Oct 2018
Current
Potential
70
76
Property Type
Maisonette
Built Form
Semi-Detached
Constructed
1950-1966
+
Certificate History
4 Oct 2018
70
76
Total Floor Area
72 sq m
Current CO2 Emissions Level
2.8
Potential CO2 Emissions Level
2.1
CO2 per sq m per Year
38
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
42 Neptune Drive
Date
2 Oct 2013
Current
Potential
65
75
Property Type
Maisonette
Built Form
Semi-Detached
Constructed
1950-1966
+
Certificate History
2 Oct 2013
65
75
Total Floor Area
69 sq m
Current CO2 Emissions Level
2.9
Potential CO2 Emissions Level
1.9
CO2 per sq m per Year
42
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
44 Neptune Drive
Date
31 Jan 2017
Current
Potential
50
75
Property Type
Maisonette
Built Form
Semi-Detached
Constructed
1950-1966
+
Certificate History
31 Jan 2017
50
75
Total Floor Area
71 sq m
Current CO2 Emissions Level
4.8
Potential CO2 Emissions Level
2.0
CO2 per sq m per Year
68
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
1
Address
46 Neptune Drive
Date
30 Oct 2015
Current
Potential
73
76
Property Type
Maisonette
Built Form
Semi-Detached
Constructed
1950-1966
+
Certificate History
30 Oct 2015
73
76
Total Floor Area
71 sq m
Current CO2 Emissions Level
2.3
Potential CO2 Emissions Level
2.0
CO2 per sq m per Year
32
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
50 Neptune Drive
Date
19 May 2019
Current
Potential
69
76
Property Type
Flat
Built Form
Semi-Detached
Constructed
1950-1966
+
Certificate History
19 May 2019
69
76
31 May 2009
72
80
Total Floor Area
69 sq m
Current CO2 Emissions Level
2.8
Potential CO2 Emissions Level
1.9
CO2 per sq m per Year
40
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
1
Address
52 Neptune Drive
Date
8 Sep 2022
Current
Potential
74
77
Property Type
Flat
Built Form
Semi-Detached
Constructed
1950-1966
+
Certificate History
8 Sep 2022
74
77
Total Floor Area
74 sq m
Current CO2 Emissions Level
2.3
Potential CO2 Emissions Level
1.9
CO2 per sq m per Year
32
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
52 NEPTUNE DRIVE, HEMEL HEMPSTEAD
Date
25 Jan 2021
Current
Potential
31
78
Property Type
Maisonette
Built Form
Semi-Detached
Constructed
1950-1966
+
Certificate History
25 Jan 2021
31
78
25 Jan 2021
31
78
25 Jan 2021
9
63
Total Floor Area
71 sq m
Current CO2 Emissions Level
5.5
Potential CO2 Emissions Level
1.8
CO2 per sq m per Year
77
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
54 Neptune Drive
Date
22 Nov 2011
Current
Potential
67
74
Property Type
Maisonette
Built Form
End-Terrace
Constructed
1967-1975
+
Certificate History
22 Nov 2011
67
74
Total Floor Area
71 sq m
Current CO2 Emissions Level
2.9
Potential CO2 Emissions Level
2.2
CO2 per sq m per Year
40
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
56 Neptune Drive
Date
30 Jul 2020
Current
Potential
72
77
Property Type
Maisonette
Built Form
Semi-Detached
Constructed
1950-1966
+
Certificate History
30 Jul 2020
72
77
Total Floor Area
70 sq m
Current CO2 Emissions Level
2.5
Potential CO2 Emissions Level
1.8
CO2 per sq m per Year
35
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
58 Neptune Drive
Date
24 Apr 2023
Current
Potential
66
76
Property Type
Flat
Built Form
Semi-Detached
Constructed
1950-1966
+
Certificate History
24 Apr 2023
66
76
Total Floor Area
69 sq m
Current CO2 Emissions Level
3.1
Potential CO2 Emissions Level
2.0
CO2 per sq m per Year
45
Mains Gas Available
Yes
Habitable Rooms
3
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.