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PROPERTY ENERGY EFFICIENCY CERTIFICATE DETAILS
Hawkins Hall Lane, KNEBWORTH, SG3 6TE

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 Hawkins Hall Lane, SG3 6TE 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 Hawkins Hall Lane, KNEBWORTH, SG3 6TE
Period Covered: 2008 - 31 January 2025

Address
Inspection Date
Current
Potential
Property Type
Built Form
Constructed
Address
16 HAWKINS HALL LANE, DATCHWORTH
Date
27 Apr 2021
Current
Potential
71
77
Property Type
Flat
Built Form
Semi-Detached
Constructed
1950-1966
+
Certificate History
27 Apr 2021
71
77
Total Floor Area
69 sq m
Current CO2 Emissions Level
2.4
Potential CO2 Emissions Level
1.8
CO2 per sq m per Year
36
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
20 Hawkins Hall Lane, Datchworth
Date
23 Dec 2023
Current
Potential
68
73
Property Type
Maisonette
Built Form
Semi-Detached
Constructed
1950-1966
+
Certificate History
23 Dec 2023
68
73
Total Floor Area
71 sq m
Current CO2 Emissions Level
2.9
Potential CO2 Emissions Level
2.4
CO2 per sq m per Year
41
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
22 Hawkins Hall Lane, Datchworth
Date
28 Mar 2024
Current
Potential
74
74
Property Type
Maisonette
Built Form
Semi-Detached
Constructed
1950-1966
+
Certificate History
28 Mar 2024
74
74
Total Floor Area
67 sq m
Current CO2 Emissions Level
2.2
Potential CO2 Emissions Level
2.2
CO2 per sq m per Year
32
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
24a Hawkins Hall Lane, Datchworth
Date
14 Mar 2015
Current
Potential
71
114
Property Type
Bungalow
Built Form
Semi-Detached
Constructed
1976-1982
+
Certificate History
14 Mar 2015
71
114
Total Floor Area
59 sq m
Current CO2 Emissions Level
2.2
Potential CO2 Emissions Level
-1.0
CO2 per sq m per Year
38
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
26 Hawkins Hall Lane, Datchworth
Date
10 May 2010
Current
Potential
68
69
Property Type
Bungalow
Built Form
Detached
Constructed
1976-1982
+
Certificate History
10 May 2010
68
69
Total Floor Area
47 sq m
Current CO2 Emissions Level
2.5
Potential CO2 Emissions Level
2.5
CO2 per sq m per Year
54
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
28a Hawkins Hall Lane, Datchworth
Date
4 Jul 2012
Current
Potential
73
90
Property Type
Bungalow
Built Form
Semi-Detached
Constructed
1976-1982
+
Certificate History
4 Jul 2012
73
90
Total Floor Area
57 sq m
Current CO2 Emissions Level
1.8
Potential CO2 Emissions Level
0.4
CO2 per sq m per Year
33
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
28b Hawkins Hall Lane, Datchworth
Date
8 Oct 2016
Current
Potential
69
116
Property Type
Bungalow
Built Form
Semi-Detached
Constructed
1976-1982
+
Certificate History
8 Oct 2016
69
116
Total Floor Area
60 sq m
Current CO2 Emissions Level
2.4
Potential CO2 Emissions Level
-1.1
CO2 per sq m per Year
40
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
30a Hawkins Hall Lane, Datchworth
Date
1 Aug 2017
Current
Potential
69
89
Property Type
Bungalow
Built Form
Semi-Detached
Constructed
1950-1966
+
Certificate History
1 Aug 2017
69
89
Total Floor Area
46 sq m
Current CO2 Emissions Level
2.1
Potential CO2 Emissions Level
0.6
CO2 per sq m per Year
45
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
30b Hawkins Hall Lane, Datchworth
Date
24 Oct 2024
Current
Potential
69
87
Property Type
Bungalow
Built Form
Semi-Detached
Constructed
1967-1975
+
Certificate History
24 Oct 2024
69
87
Total Floor Area
49 sq m
Current CO2 Emissions Level
2.2
Potential CO2 Emissions Level
0.8
CO2 per sq m per Year
45
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
32 Hawkins Hall Lane, Datchworth
Date
31 Jan 2011
Current
Potential
73
76
Property Type
Bungalow
Built Form
End-Terrace
Constructed
1976-1982
+
Certificate History
31 Jan 2011
73
76
Total Floor Area
46 sq m
Current CO2 Emissions Level
2.1
Potential CO2 Emissions Level
1.9
CO2 per sq m per Year
46
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
34 Hawkins Hall Lane, Datchworth
Date
16 Dec 2009
Current
Potential
72
79
Property Type
Bungalow
Built Form
Mid-Terrace
Constructed
1976-1982
+
Certificate History
16 Dec 2009
72
79
Total Floor Area
50 sq m
Current CO2 Emissions Level
2.3
Potential CO2 Emissions Level
1.7
CO2 per sq m per Year
46
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
36 Hawkins Hall Lane, Datchworth
Date
30 Nov 2012
Current
Potential
71
93
Property Type
Bungalow
Built Form
Semi-Detached
Constructed
1976-1982
+
Certificate History
30 Nov 2012
71
93
Total Floor Area
59 sq m
Current CO2 Emissions Level
2.0
Potential CO2 Emissions Level
0.2
CO2 per sq m per Year
34
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
44 Hawkins Hall Lane, Datchworth
Date
5 Apr 2023
Current
Potential
72
90
Property Type
Bungalow
Built Form
Semi-Detached
Constructed
1950-1966
+
Certificate History
5 Apr 2023
72
90
10 Sep 2009
77
78
Total Floor Area
50 sq m
Current CO2 Emissions Level
1.9
Potential CO2 Emissions Level
0.6
CO2 per sq m per Year
39
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
46 Hawkins Hall Lane, Datchworth
Date
19 Feb 2020
Current
Potential
71
89
Property Type
Bungalow
Built Form
Mid-Terrace
Constructed
1983-1990
+
Certificate History
19 Feb 2020
71
89
Total Floor Area
49 sq m
Current CO2 Emissions Level
1.9
Potential CO2 Emissions Level
0.6
CO2 per sq m per Year
39
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
48 Hawkins Hall Lane, Datchworth
Date
4 Nov 2010
Current
Potential
61
76
Property Type
Bungalow
Built Form
End-Terrace
Constructed
1976-1982
+
Certificate History
4 Nov 2010
61
76
Total Floor Area
59 sq m
Current CO2 Emissions Level
3.6
Potential CO2 Emissions Level
2.1
CO2 per sq m per Year
61
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
54 Hawkins Hall Lane, Datchworth
Date
16 Jul 2020
Current
Potential
77
88
Property Type
House
Built Form
Semi-Detached
Constructed
N/A
+
Certificate History
16 Jul 2020
77
88
Total Floor Area
94 sq m
Current CO2 Emissions Level
2.4
Potential CO2 Emissions Level
1.3
CO2 per sq m per Year
26
Mains Gas Available
No
Habitable Rooms
0
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.

Contains public sector information licensed under the Open Government Licence v3.0.
Contains Royal Mail data © Royal Mail copyright and Database right 2025.