PROPERTY ENERGY EFFICIENCY CERTIFICATE DETAILS
Robbery Bottom Lane, WELWYN, AL6 0UL
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 Robbery Bottom Lane, AL6 0UL 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 Robbery Bottom Lane, WELWYN, AL6 0UL
Period Covered:
2008 - 31 January 2025
Address
Inspection Date
Current
Potential
Property Type
Built Form
Constructed
Address
103 Robbery Bottom Lane
Date
9 Aug 2020
Current
Potential
65
78
Property Type
House
Built Form
Detached
Constructed
1967-1975
Certificate History
9 Aug 2020
65
78
29 Sep 2013
62
79
Total Floor Area
196 sq m
Current CO2 Emissions Level
6.8
Potential CO2 Emissions Level
4.0
CO2 per sq m per Year
35
Mains Gas Available
Yes
Habitable Rooms
8
Number of Extensions
1
Address
15 Robbery Bottom Lane
Date
23 Jan 2016
Current
Potential
74
83
Property Type
House
Built Form
Detached
Constructed
2003-2006
Certificate History
23 Jan 2016
74
83
Total Floor Area
238 sq m
Current CO2 Emissions Level
6.3
Potential CO2 Emissions Level
4.3
CO2 per sq m per Year
26
Mains Gas Available
Yes
Habitable Rooms
7
Number of Extensions
1
Address
19 Robbery Bottom Lane
Date
22 May 2011
Current
Potential
72
74
Property Type
House
Built Form
Detached
Constructed
1996-2002
Certificate History
22 May 2011
72
74
Total Floor Area
127 sq m
Current CO2 Emissions Level
7.7
Potential CO2 Emissions Level
7.4
CO2 per sq m per Year
30
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
0
Address
21 Robbery Bottom Lane
Date
26 Jul 2011
Current
Potential
46
68
Property Type
Bungalow
Built Form
Detached
Constructed
1950-1966
Certificate History
26 Jul 2011
46
68
Total Floor Area
72 sq m
Current CO2 Emissions Level
5.3
Potential CO2 Emissions Level
2.9
CO2 per sq m per Year
74
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
23 Robbery Bottom Lane
Date
21 Aug 2019
Current
Potential
53
78
Property Type
House
Built Form
Detached
Constructed
1900-1929
Certificate History
21 Aug 2019
53
78
Total Floor Area
163 sq m
Current CO2 Emissions Level
7.9
Potential CO2 Emissions Level
3.4
CO2 per sq m per Year
48
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
1
Address
27 Robbery Bottom Lane
Date
20 Apr 2023
Current
Potential
74
82
Property Type
House
Built Form
Detached
Constructed
1983-1990
Certificate History
20 Apr 2023
74
82
20 Aug 2010
69
77
Total Floor Area
205 sq m
Current CO2 Emissions Level
5.6
Potential CO2 Emissions Level
3.9
CO2 per sq m per Year
27
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
39 Robbery Bottom Lane
Date
10 Aug 2023
Current
Potential
70
81
Property Type
House
Built Form
Detached
Constructed
1930-1949
Certificate History
10 Aug 2023
70
81
Total Floor Area
197 sq m
Current CO2 Emissions Level
5.6
Potential CO2 Emissions Level
3.4
CO2 per sq m per Year
28
Mains Gas Available
Yes
Habitable Rooms
7
Number of Extensions
1
Address
43 ROBBERY BOTTOM LANE, WELWYN
Date
30 Sep 2020
Current
Potential
67
79
Property Type
Bungalow
Built Form
Detached
Constructed
1950-1966
Certificate History
30 Sep 2020
67
79
Total Floor Area
131 sq m
Current CO2 Emissions Level
4.9
Potential CO2 Emissions Level
3.1
CO2 per sq m per Year
37
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
0
Address
45 Robbery Bottom Lane
Date
27 Apr 2010
Current
Potential
33
62
Property Type
Bungalow
Built Form
Detached
Constructed
1900-1929
Certificate History
27 Apr 2010
33
62
13 May 2009
35
62
Total Floor Area
81 sq m
Current CO2 Emissions Level
7.5
Potential CO2 Emissions Level
3.9
CO2 per sq m per Year
103
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
49 Robbery Bottom Lane
Date
11 Feb 2012
Current
Potential
43
62
Property Type
House
Built Form
Detached
Constructed
1930-1949
Certificate History
11 Feb 2012
43
62
Total Floor Area
148 sq m
Current CO2 Emissions Level
9.9
Potential CO2 Emissions Level
6.5
CO2 per sq m per Year
78
Mains Gas Available
No
Habitable Rooms
7
Number of Extensions
2
Address
55 Robbery Bottom Lane
Date
10 Mar 2010
Current
Potential
42
61
Property Type
House
Built Form
Detached
Constructed
1930-1949
Certificate History
10 Mar 2010
42
61
Total Floor Area
145 sq m
Current CO2 Emissions Level
11.0
Potential CO2 Emissions Level
6.9
CO2 per sq m per Year
53
Mains Gas Available
Yes
Habitable Rooms
8
Number of Extensions
2
Address
61 Robbery Bottom Lane
Date
24 Jan 2012
Current
Potential
82
82
Property Type
House
Built Form
Detached
Constructed
N/A
Certificate History
24 Jan 2012
82
82
Total Floor Area
148 sq m
Current CO2 Emissions Level
2.6
Potential CO2 Emissions Level
2.5
CO2 per sq m per Year
18
Mains Gas Available
No
Habitable Rooms
0
Number of Extensions
0
Address
65 Robbery Bottom Lane
Date
13 Sep 2023
Current
Potential
69
80
Property Type
House
Built Form
Detached
Constructed
1967-1975
Certificate History
13 Sep 2023
69
80
Total Floor Area
140 sq m
Current CO2 Emissions Level
4.3
Potential CO2 Emissions Level
2.7
CO2 per sq m per Year
31
Mains Gas Available
Yes
Habitable Rooms
7
Number of Extensions
1
Address
67 Robbery Bottom Lane
Date
15 Jun 2017
Current
Potential
76
84
Property Type
House
Built Form
Detached
Constructed
2007 onwards
Certificate History
15 Jun 2017
76
84
Total Floor Area
201 sq m
Current CO2 Emissions Level
4.2
Potential CO2 Emissions Level
2.9
CO2 per sq m per Year
21
Mains Gas Available
Yes
Habitable Rooms
7
Number of Extensions
0
Address
69 Robbery Bottom Lane
Date
27 Jul 2015
Current
Potential
61
79
Property Type
Bungalow
Built Form
Detached
Constructed
1967-1975
Certificate History
27 Jul 2015
61
79
25 Nov 2014
51
79
Total Floor Area
103 sq m
Current CO2 Emissions Level
4.5
Potential CO2 Emissions Level
2.4
CO2 per sq m per Year
43
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
1
Address
71 Robbery Bottom Lane
Date
26 Jun 2018
Current
Potential
65
82
Property Type
House
Built Form
Detached
Constructed
1900-1929
Certificate History
26 Jun 2018
65
82
10 May 2009
60
66
Total Floor Area
161 sq m
Current CO2 Emissions Level
6.4
Potential CO2 Emissions Level
3.3
CO2 per sq m per Year
39
Mains Gas Available
Yes
Habitable Rooms
8
Number of Extensions
1
Address
75 Robbery Bottom Lane
Date
27 Mar 2017
Current
Potential
45
84
Property Type
Bungalow
Built Form
Detached
Constructed
1930-1949
Certificate History
27 Mar 2017
45
84
Total Floor Area
81 sq m
Current CO2 Emissions Level
6.1
Potential CO2 Emissions Level
1.6
CO2 per sq m per Year
76
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
79 Robbery Bottom Lane
Date
13 May 2013
Current
Potential
55
85
Property Type
House
Built Form
Detached
Constructed
1930-1949
Certificate History
13 May 2013
55
85
Total Floor Area
147 sq m
Current CO2 Emissions Level
7.0
Potential CO2 Emissions Level
2.1
CO2 per sq m per Year
48
Mains Gas Available
Yes
Habitable Rooms
8
Number of Extensions
1
Address
79a Robbery Bottom Lane
Date
27 May 2020
Current
Potential
62
77
Property Type
Bungalow
Built Form
Detached
Constructed
1983-1990
Certificate History
27 May 2020
62
77
Total Floor Area
103 sq m
Current CO2 Emissions Level
4.4
Potential CO2 Emissions Level
2.6
CO2 per sq m per Year
42
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
1
Address
81 Robbery Bottom Lane
Date
12 Dec 2013
Current
Potential
67
85
Property Type
Bungalow
Built Form
Detached
Constructed
1950-1966
Certificate History
12 Dec 2013
67
85
Total Floor Area
83 sq m
Current CO2 Emissions Level
3.1
Potential CO2 Emissions Level
1.3
CO2 per sq m per Year
38
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
85 Robbery Bottom Lane
Date
24 Jan 2024
Current
Potential
65
87
Property Type
Bungalow
Built Form
Detached
Constructed
1967-1975
Certificate History
24 Jan 2024
65
87
Total Floor Area
64 sq m
Current CO2 Emissions Level
3.1
Potential CO2 Emissions Level
1.0
CO2 per sq m per Year
48
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
87 Robbery Bottom Lane
Date
25 Jun 2015
Current
Potential
59
76
Property Type
Bungalow
Built Form
Detached
Constructed
1950-1966
Certificate History
25 Jun 2015
59
76
Total Floor Area
128 sq m
Current CO2 Emissions Level
6.3
Potential CO2 Emissions Level
3.7
CO2 per sq m per Year
49
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
3
Address
89 Robbery Bottom Lane
Date
7 Jul 2020
Current
Potential
53
81
Property Type
Bungalow
Built Form
Detached
Constructed
1950-1966
Certificate History
7 Jul 2020
53
81
Total Floor Area
59 sq m
Current CO2 Emissions Level
4.1
Potential CO2 Emissions Level
1.5
CO2 per sq m per Year
69
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
93 Robbery Bottom Lane
Date
1 May 2014
Current
Potential
55
70
Property Type
House
Built Form
Detached
Constructed
1967-1975
Certificate History
1 May 2014
55
70
Total Floor Area
122 sq m
Current CO2 Emissions Level
6.0
Potential CO2 Emissions Level
4.0
CO2 per sq m per Year
49
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
1
Address
95 Robbery Bottom Lane
Date
10 Oct 2019
Current
Potential
70
83
Property Type
House
Built Form
Detached
Constructed
1950-1966
Certificate History
10 Oct 2019
70
83
Total Floor Area
119 sq m
Current CO2 Emissions Level
4.0
Potential CO2 Emissions Level
2.4
CO2 per sq m per Year
34
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
1
Address
99 Robbery Bottom Lane
Date
2 Sep 2019
Current
Potential
67
93
Property Type
Bungalow
Built Form
Semi-Detached
Constructed
1967-1975
Certificate History
2 Sep 2019
67
93
20 Mar 2017
47
79
Total Floor Area
136 sq m
Current CO2 Emissions Level
5.1
Potential CO2 Emissions Level
1.6
CO2 per sq m per Year
38
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
2
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.