PROPERTY ENERGY EFFICIENCY CERTIFICATE DETAILS
Longlands, HEMEL HEMPSTEAD, HP2 4DG
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 Longlands, HP2 4DG 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 Longlands, HEMEL HEMPSTEAD, HP2 4DG
Period Covered:
2008 - 31 January 2025
Address
Inspection Date
Current
Potential
Property Type
Built Form
Constructed
Address
1 Longlands
Date
11 Apr 2023
Current
Potential
70
73
Property Type
Flat
Built Form
Detached
Constructed
1950-1966
Certificate History
11 Apr 2023
70
73
17 Jun 2012
63
75
Total Floor Area
64 sq m
Current CO2 Emissions Level
2.5
Potential CO2 Emissions Level
2.2
CO2 per sq m per Year
39
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
11 Longlands
Date
16 Jan 2018
Current
Potential
69
75
Property Type
Flat
Built Form
End-Terrace
Constructed
1950-1966
Certificate History
16 Jan 2018
69
75
Total Floor Area
58 sq m
Current CO2 Emissions Level
2.4
Potential CO2 Emissions Level
1.8
CO2 per sq m per Year
42
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
12 Longlands
Date
23 Nov 2011
Current
Potential
58
64
Property Type
Flat
Built Form
Detached
Constructed
1950-1966
Certificate History
23 Nov 2011
58
64
Total Floor Area
34 sq m
Current CO2 Emissions Level
2.5
Potential CO2 Emissions Level
2.0
CO2 per sq m per Year
72
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
13 Longlands
Date
17 Oct 2023
Current
Potential
65
73
Property Type
Flat
Built Form
Detached
Constructed
1967-1975
Certificate History
17 Oct 2023
65
73
Total Floor Area
46 sq m
Current CO2 Emissions Level
2.5
Potential CO2 Emissions Level
1.7
CO2 per sq m per Year
55
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
14 Longlands
Date
15 Jun 2009
Current
Potential
69
77
Property Type
Flat
Built Form
Detached
Constructed
1950-1966
Certificate History
15 Jun 2009
69
77
Total Floor Area
57 sq m
Current CO2 Emissions Level
2.8
Potential CO2 Emissions Level
2.0
CO2 per sq m per Year
48
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
15 Longlands
Date
21 Mar 2014
Current
Potential
75
76
Property Type
Flat
Built Form
Semi-Detached
Constructed
1950-1966
Certificate History
21 Mar 2014
75
76
29 Aug 2011
67
78
Total Floor Area
60 sq m
Current CO2 Emissions Level
1.6
Potential CO2 Emissions Level
1.5
CO2 per sq m per Year
26
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
16 Longlands
Date
23 May 2016
Current
Potential
71
81
Property Type
Flat
Built Form
Semi-Detached
Constructed
1950-1966
Certificate History
23 May 2016
71
81
Total Floor Area
62 sq m
Current CO2 Emissions Level
2.7
Potential CO2 Emissions Level
1.3
CO2 per sq m per Year
44
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
17 Longlands
Date
23 Sep 2010
Current
Potential
65
83
Property Type
Flat
Built Form
N/A
Constructed
1950-1966
Certificate History
23 Sep 2010
65
83
Total Floor Area
42 sq m
Current CO2 Emissions Level
2.7
Potential CO2 Emissions Level
1.2
CO2 per sq m per Year
64
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
17 LONGLANDS, HEMEL HEMPSTEAD
Date
18 Mar 2021
Current
Potential
55
56
Property Type
Flat
Built Form
Semi-Detached
Constructed
1950-1966
Certificate History
18 Mar 2021
55
56
Total Floor Area
59 sq m
Current CO2 Emissions Level
3.5
Potential CO2 Emissions Level
3.4
CO2 per sq m per Year
60
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
18 Longlands
Date
23 Jun 2022
Current
Potential
61
74
Property Type
Flat
Built Form
Semi-Detached
Constructed
1950-1966
Certificate History
23 Jun 2022
61
74
17 Nov 2011
61
63
Total Floor Area
58 sq m
Current CO2 Emissions Level
3.3
Potential CO2 Emissions Level
1.9
CO2 per sq m per Year
57
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
19 Longlands
Date
7 Oct 2024
Current
Potential
71
75
Property Type
Flat
Built Form
Detached
Constructed
1950-1966
Certificate History
7 Oct 2024
71
75
7 May 2024
65
75
Total Floor Area
50 sq m
Current CO2 Emissions Level
2.0
Potential CO2 Emissions Level
1.6
CO2 per sq m per Year
40
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
2 Longlands
Date
21 Nov 2011
Current
Potential
69
74
Property Type
Flat
Built Form
Detached
Constructed
1950-1966
Certificate History
21 Nov 2011
69
74
Total Floor Area
52 sq m
Current CO2 Emissions Level
2.1
Potential CO2 Emissions Level
1.7
CO2 per sq m per Year
41
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
20 Longlands
Date
23 Oct 2024
Current
Potential
70
73
Property Type
Flat
Built Form
Detached
Constructed
1950-1966
Certificate History
23 Oct 2024
70
73
26 Sep 2011
73
73
Total Floor Area
46 sq m
Current CO2 Emissions Level
2.0
Potential CO2 Emissions Level
1.7
CO2 per sq m per Year
43
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
21 Longlands
Date
7 Feb 2024
Current
Potential
67
75
Property Type
Flat
Built Form
Semi-Detached
Constructed
1967-1975
Certificate History
7 Feb 2024
67
75
Total Floor Area
61 sq m
Current CO2 Emissions Level
2.7
Potential CO2 Emissions Level
1.9
CO2 per sq m per Year
44
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
22 Longlands
Date
1 Oct 2019
Current
Potential
79
80
Property Type
Flat
Built Form
End-Terrace
Constructed
1950-1966
Certificate History
1 Oct 2019
79
80
Total Floor Area
64 sq m
Current CO2 Emissions Level
1.5
Potential CO2 Emissions Level
1.4
CO2 per sq m per Year
23
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
23 Longlands
Date
26 Apr 2011
Current
Potential
65
76
Property Type
Flat
Built Form
End-Terrace
Constructed
1967-1975
Certificate History
26 Apr 2011
65
76
10 Jun 2009
55
63
Total Floor Area
61 sq m
Current CO2 Emissions Level
2.6
Potential CO2 Emissions Level
1.6
CO2 per sq m per Year
44
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
24 Longlands
Date
4 Aug 2021
Current
Potential
52
75
Property Type
Flat
Built Form
Semi-Detached
Constructed
1950-1966
Certificate History
4 Aug 2021
52
75
21 May 2009
36
53
Total Floor Area
57 sq m
Current CO2 Emissions Level
3.3
Potential CO2 Emissions Level
3.2
CO2 per sq m per Year
57
Mains Gas Available
No
Habitable Rooms
3
Number of Extensions
0
Address
26 Longlands
Date
7 Sep 2024
Current
Potential
74
77
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1950-1966
Certificate History
7 Sep 2024
74
77
27 Jun 2023
69
75
Total Floor Area
49 sq m
Current CO2 Emissions Level
1.7
Potential CO2 Emissions Level
1.4
CO2 per sq m per Year
34
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
28 Longlands
Date
22 Feb 2016
Current
Potential
77
79
Property Type
Flat
Built Form
Semi-Detached
Constructed
1950-1966
Certificate History
22 Feb 2016
77
79
Total Floor Area
60 sq m
Current CO2 Emissions Level
1.5
Potential CO2 Emissions Level
1.4
CO2 per sq m per Year
25
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
3 Longlands
Date
10 Feb 2014
Current
Potential
76
76
Property Type
Flat
Built Form
Semi-Detached
Constructed
1967-1975
Certificate History
10 Feb 2014
76
76
Total Floor Area
60 sq m
Current CO2 Emissions Level
1.5
Potential CO2 Emissions Level
1.5
CO2 per sq m per Year
26
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
30 Longlands
Date
21 Nov 2011
Current
Potential
57
64
Property Type
Flat
Built Form
Detached
Constructed
1950-1966
Certificate History
21 Nov 2011
57
64
Total Floor Area
56 sq m
Current CO2 Emissions Level
3.4
Potential CO2 Emissions Level
2.7
CO2 per sq m per Year
61
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
32 Longlands
Date
24 Sep 2024
Current
Potential
71
77
Property Type
Flat
Built Form
Semi-Detached
Constructed
1950-1966
Certificate History
24 Sep 2024
71
77
21 Nov 2011
69
74
Total Floor Area
52 sq m
Current CO2 Emissions Level
2.1
Potential CO2 Emissions Level
1.5
CO2 per sq m per Year
40
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
34 Longlands
Date
21 Aug 2023
Current
Potential
75
76
Property Type
Flat
Built Form
Semi-Detached
Constructed
1967-1975
Certificate History
21 Aug 2023
75
76
Total Floor Area
53 sq m
Current CO2 Emissions Level
1.7
Potential CO2 Emissions Level
1.6
CO2 per sq m per Year
32
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
36 Longlands
Date
15 Mar 2022
Current
Potential
73
76
Property Type
Flat
Built Form
Semi-Detached
Constructed
1950-1966
Certificate History
15 Mar 2022
73
76
8 Jan 2010
77
81
Total Floor Area
56 sq m
Current CO2 Emissions Level
1.9
Potential CO2 Emissions Level
1.7
CO2 per sq m per Year
34
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
4 Longlands
Date
29 Aug 2011
Current
Potential
77
80
Property Type
Flat
Built Form
N/A
Constructed
1950-1966
Certificate History
29 Aug 2011
77
80
4 Mar 2009
80
84
Total Floor Area
58 sq m
Current CO2 Emissions Level
1.5
Potential CO2 Emissions Level
1.2
CO2 per sq m per Year
26
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
5 Longlands
Date
30 Aug 2012
Current
Potential
64
65
Property Type
Flat
Built Form
Semi-Detached
Constructed
1950-1966
Certificate History
30 Aug 2012
64
65
18 Mar 2011
70
72
Total Floor Area
66 sq m
Current CO2 Emissions Level
2.9
Potential CO2 Emissions Level
2.8
CO2 per sq m per Year
45
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
7 Longlands
Date
7 May 2024
Current
Potential
71
74
Property Type
Flat
Built Form
Detached
Constructed
1950-1966
Certificate History
7 May 2024
71
74
Total Floor Area
43 sq m
Current CO2 Emissions Level
1.8
Potential CO2 Emissions Level
1.5
CO2 per sq m per Year
43
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
9 Longlands
Date
22 Feb 2019
Current
Potential
66
79
Property Type
Flat
Built Form
Semi-Detached
Constructed
1976-1982
Certificate History
22 Feb 2019
66
79
7 Oct 2008
65
75
Total Floor Area
60 sq m
Current CO2 Emissions Level
2.8
Potential CO2 Emissions Level
1.4
CO2 per sq m per Year
47
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Bands
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.