PROPERTY ENERGY EFFICIENCY CERTIFICATE DETAILS
Howlands, WELWYN GARDEN CITY, AL7 4RL
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 Howlands, AL7 4RL 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 Howlands, WELWYN GARDEN CITY, AL7 4RL
Period Covered:
2008 - 31 January 2025
Address
Inspection Date
Current
Potential
Property Type
Built Form
Constructed
Address
103 Howlands
Date
25 Oct 2010
Current
Potential
67
79
Property Type
House
Built Form
Mid-Terrace
Constructed
1950-1966
Certificate History
25 Oct 2010
67
79
Total Floor Area
92 sq m
Current CO2 Emissions Level
3.5
Potential CO2 Emissions Level
2.3
CO2 per sq m per Year
42
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
105 Howlands
Date
8 Apr 2010
Current
Potential
67
73
Property Type
House
Built Form
Mid-Terrace
Constructed
1950-1966
Certificate History
8 Apr 2010
67
73
Total Floor Area
93 sq m
Current CO2 Emissions Level
3.1
Potential CO2 Emissions Level
2.6
CO2 per sq m per Year
33
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
1
Address
107 Howlands
Date
4 Oct 2017
Current
Potential
68
86
Property Type
House
Built Form
Mid-Terrace
Constructed
1950-1966
Certificate History
4 Oct 2017
68
86
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
109 Howlands
Date
26 Jul 2024
Current
Potential
70
86
Property Type
House
Built Form
Semi-Detached
Constructed
1950-1966
Certificate History
26 Jul 2024
70
86
Total Floor Area
80 sq m
Current CO2 Emissions Level
2.9
Potential CO2 Emissions Level
1.3
CO2 per sq m per Year
36
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
109 HOWLANDS
Date
14 Sep 2020
Current
Potential
70
84
Property Type
House
Built Form
End-Terrace
Constructed
1950-1966
Certificate History
14 Sep 2020
70
84
Total Floor Area
82 sq m
Current CO2 Emissions Level
2.9
Potential CO2 Emissions Level
1.5
CO2 per sq m per Year
36
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
113 Howlands
Date
23 May 2023
Current
Potential
72
83
Property Type
House
Built Form
Mid-Terrace
Constructed
1950-1966
Certificate History
23 May 2023
72
83
Total Floor Area
99 sq m
Current CO2 Emissions Level
3.0
Potential CO2 Emissions Level
1.7
CO2 per sq m per Year
30
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
1
Address
123 Howlands
Date
27 Jun 2024
Current
Potential
73
86
Property Type
House
Built Form
Mid-Terrace
Constructed
1950-1966
Certificate History
27 Jun 2024
73
86
Total Floor Area
79 sq m
Current CO2 Emissions Level
2.5
Potential CO2 Emissions Level
1.2
CO2 per sq m per Year
32
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
125 Howlands
Date
23 Nov 2017
Current
Potential
61
82
Property Type
House
Built Form
Mid-Terrace
Constructed
1950-1966
Certificate History
23 Nov 2017
61
82
Total Floor Area
66 sq m
Current CO2 Emissions Level
3.2
Potential CO2 Emissions Level
1.3
CO2 per sq m per Year
49
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
127 Howlands
Date
9 Jun 2016
Current
Potential
74
85
Property Type
House
Built Form
Mid-Terrace
Constructed
1950-1966
Certificate History
9 Jun 2016
74
85
Total Floor Area
101 sq m
Current CO2 Emissions Level
2.7
Potential CO2 Emissions Level
1.5
CO2 per sq m per Year
27
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
1
Address
129 Howlands
Date
12 Feb 2014
Current
Potential
66
88
Property Type
House
Built Form
Mid-Terrace
Constructed
1950-1966
Certificate History
12 Feb 2014
66
88
Total Floor Area
96 sq m
Current CO2 Emissions Level
3.7
Potential CO2 Emissions Level
1.1
CO2 per sq m per Year
38
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
1
Address
133 Howlands
Date
26 Jun 2024
Current
Potential
72
85
Property Type
House
Built Form
End-Terrace
Constructed
1950-1966
Certificate History
26 Jun 2024
72
85
Total Floor Area
81 sq m
Current CO2 Emissions Level
2.8
Potential CO2 Emissions Level
1.4
CO2 per sq m per Year
34
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
135 Howlands
Date
26 Feb 2015
Current
Potential
61
88
Property Type
House
Built Form
End-Terrace
Constructed
1950-1966
Certificate History
26 Feb 2015
61
88
30 Mar 2011
67
76
Total Floor Area
100 sq m
Current CO2 Emissions Level
4.7
Potential CO2 Emissions Level
1.3
CO2 per sq m per Year
47
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
0
Address
137 Howlands
Date
14 May 2024
Current
Potential
61
85
Property Type
House
Built Form
Mid-Terrace
Constructed
1950-1966
Certificate History
14 May 2024
61
85
Total Floor Area
89 sq m
Current CO2 Emissions Level
4.4
Potential CO2 Emissions Level
1.5
CO2 per sq m per Year
50
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
1
Address
139 Howlands
Date
8 Feb 2011
Current
Potential
56
69
Property Type
House
Built Form
Mid-Terrace
Constructed
1950-1966
Certificate History
8 Feb 2011
56
69
Total Floor Area
84 sq m
Current CO2 Emissions Level
5.4
Potential CO2 Emissions Level
3.9
CO2 per sq m per Year
55
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
141 Howlands
Date
13 Sep 2016
Current
Potential
63
84
Property Type
House
Built Form
End-Terrace
Constructed
1950-1966
Certificate History
13 Sep 2016
63
84
10 Jun 2010
66
78
Total Floor Area
114 sq m
Current CO2 Emissions Level
4.9
Potential CO2 Emissions Level
2.0
CO2 per sq m per Year
43
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
1
Address
143 Howlands
Date
10 Apr 2016
Current
Potential
72
88
Property Type
House
Built Form
End-Terrace
Constructed
1950-1966
Certificate History
10 Apr 2016
72
88
Total Floor Area
80 sq m
Current CO2 Emissions Level
2.6
Potential CO2 Emissions Level
1.1
CO2 per sq m per Year
32
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
147 Howlands
Date
25 Jun 2024
Current
Potential
73
87
Property Type
House
Built Form
Mid-Terrace
Constructed
1950-1966
Certificate History
25 Jun 2024
73
87
7 Mar 2018
57
85
31 Aug 2017
59
86
Total Floor Area
82 sq m
Current CO2 Emissions Level
2.5
Potential CO2 Emissions Level
1.2
CO2 per sq m per Year
31
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
149 Howlands
Date
8 Jul 2010
Current
Potential
64
72
Property Type
House
Built Form
Mid-Terrace
Constructed
1950-1966
Certificate History
8 Jul 2010
64
72
Total Floor Area
84 sq m
Current CO2 Emissions Level
4.0
Potential CO2 Emissions Level
3.1
CO2 per sq m per Year
48
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
151 Howlands
Date
14 Sep 2009
Current
Potential
57
74
Property Type
House
Built Form
Mid-Terrace
Constructed
1950-1966
Certificate History
14 Sep 2009
57
74
Total Floor Area
82 sq m
Current CO2 Emissions Level
4.7
Potential CO2 Emissions Level
2.8
CO2 per sq m per Year
58
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
155 Howlands
Date
4 May 2009
Current
Potential
61
64
Property Type
House
Built Form
End-Terrace
Constructed
1950-1966
Certificate History
4 May 2009
61
64
Total Floor Area
87 sq m
Current CO2 Emissions Level
4.7
Potential CO2 Emissions Level
4.3
CO2 per sq m per Year
51
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
157 Howlands
Date
5 Jul 2024
Current
Potential
70
84
Property Type
House
Built Form
Semi-Detached
Constructed
1950-1966
Certificate History
5 Jul 2024
70
84
9 May 2017
71
86
Total Floor Area
80 sq m
Current CO2 Emissions Level
2.9
Potential CO2 Emissions Level
1.5
CO2 per sq m per Year
36
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
159 Howlands
Date
3 Oct 2016
Current
Potential
67
82
Property Type
House
Built Form
Semi-Detached
Constructed
1950-1966
Certificate History
3 Oct 2016
67
82
Total Floor Area
119 sq m
Current CO2 Emissions Level
4.0
Potential CO2 Emissions Level
1.9
CO2 per sq m per Year
34
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
1
Address
161 Howlands
Date
3 May 2016
Current
Potential
72
84
Property Type
House
Built Form
End-Terrace
Constructed
1950-1966
Certificate History
3 May 2016
72
84
Total Floor Area
88 sq m
Current CO2 Emissions Level
2.6
Potential CO2 Emissions Level
1.3
CO2 per sq m per Year
30
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
163 Howlands
Date
8 Sep 2009
Current
Potential
71
75
Property Type
House
Built Form
Mid-Terrace
Constructed
1950-1966
Certificate History
8 Sep 2009
71
75
Total Floor Area
90 sq m
Current CO2 Emissions Level
2.9
Potential CO2 Emissions Level
2.6
CO2 per sq m per Year
33
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
165 Howlands
Date
19 Jul 2024
Current
Potential
72
85
Property Type
House
Built Form
Mid-Terrace
Constructed
1950-1966
Certificate History
19 Jul 2024
72
85
Total Floor Area
85 sq m
Current CO2 Emissions Level
2.9
Potential CO2 Emissions Level
1.5
CO2 per sq m per Year
34
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
167 Howlands
Date
1 Jul 2024
Current
Potential
71
84
Property Type
House
Built Form
Mid-Terrace
Constructed
1950-1966
Certificate History
1 Jul 2024
71
84
6 Oct 2011
70
73
Total Floor Area
85 sq m
Current CO2 Emissions Level
2.9
Potential CO2 Emissions Level
1.5
CO2 per sq m per Year
35
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
169 Howlands
Date
17 Dec 2024
Current
Potential
72
85
Property Type
House
Built Form
Mid-Terrace
Constructed
1950-1966
Certificate History
17 Dec 2024
72
85
Total Floor Area
88 sq m
Current CO2 Emissions Level
2.9
Potential CO2 Emissions Level
1.5
CO2 per sq m per Year
33
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
1
Address
173 Howlands
Date
14 Jun 2010
Current
Potential
64
75
Property Type
House
Built Form
End-Terrace
Constructed
1950-1966
Certificate History
14 Jun 2010
64
75
Total Floor Area
72 sq m
Current CO2 Emissions Level
3.7
Potential CO2 Emissions Level
2.5
CO2 per sq m per Year
51
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
177 Howlands
Date
19 Apr 2017
Current
Potential
63
89
Property Type
House
Built Form
Semi-Detached
Constructed
1950-1966
Certificate History
19 Apr 2017
63
89
Total Floor Area
79 sq m
Current CO2 Emissions Level
3.7
Potential CO2 Emissions Level
0.9
CO2 per sq m per Year
47
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
181 HOWLANDS, WELWYN GARDEN CITY
Date
19 Nov 2020
Current
Potential
46
83
Property Type
House
Built Form
Detached
Constructed
1950-1966
Certificate History
19 Nov 2020
46
83
Total Floor Area
98 sq m
Current CO2 Emissions Level
6.8
Potential CO2 Emissions Level
1.9
CO2 per sq m per Year
70
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
1
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.