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PROPERTY ENERGY EFFICIENCY CERTIFICATE DETAILS
Howlands, WELWYN GARDEN CITY, AL7 4HA

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 4HA 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 4HA
Period Covered: 2008 - 31 January 2025

Address
Inspection Date
Current
Potential
Property Type
Built Form
Constructed
Address
438 Howlands
Date
22 May 2011
Current
Potential
64
71
Property Type
House
Built Form
Mid-Terrace
Constructed
1976-1982
+
Certificate History
22 May 2011
64
71
Total Floor Area
41 sq m
Current CO2 Emissions Level
2.2
Potential CO2 Emissions Level
1.6
CO2 per sq m per Year
54
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
1
Address
440 Howlands
Date
19 Mar 2020
Current
Potential
61
62
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1950-1966
+
Certificate History
19 Mar 2020
61
62
18 Nov 2008
69
75
18 Nov 2008
58
67
Total Floor Area
26 sq m
Current CO2 Emissions Level
2.0
Potential CO2 Emissions Level
1.9
CO2 per sq m per Year
78
Mains Gas Available
Yes
Habitable Rooms
1
Number of Extensions
0
Address
442 Howlands
Date
18 Jun 2024
Current
Potential
62
67
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1950-1966
+
Certificate History
18 Jun 2024
62
67
23 Apr 2014
63
72
14 Jan 2009
60
68
Total Floor Area
28 sq m
Current CO2 Emissions Level
2.1
Potential CO2 Emissions Level
1.7
CO2 per sq m per Year
74
Mains Gas Available
Yes
Habitable Rooms
1
Number of Extensions
0
Address
442 HOWLANDS, WELWYN GARDEN CITY
Date
4 Mar 2021
Current
Potential
61
62
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1950-1966
+
Certificate History
4 Mar 2021
61
62
Total Floor Area
27 sq m
Current CO2 Emissions Level
2.0
Potential CO2 Emissions Level
2.0
CO2 per sq m per Year
75
Mains Gas Available
Yes
Habitable Rooms
1
Number of Extensions
0
Address
444 Howlands
Date
15 May 2023
Current
Potential
77
77
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1950-1966
+
Certificate History
15 May 2023
77
77
28 Feb 2013
66
74
Total Floor Area
46 sq m
Current CO2 Emissions Level
1.3
Potential CO2 Emissions Level
1.3
CO2 per sq m per Year
29
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
1
Address
446 HOWLANDS
Date
27 May 2021
Current
Potential
61
65
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1950-1966
+
Certificate History
27 May 2021
61
65
Total Floor Area
19 sq m
Current CO2 Emissions Level
1.7
Potential CO2 Emissions Level
1.5
CO2 per sq m per Year
93
Mains Gas Available
Yes
Habitable Rooms
1
Number of Extensions
0
Address
448 Howlands
Date
20 Jun 2024
Current
Potential
60
60
Property Type
Flat
Built Form
End-Terrace
Constructed
1950-1966
+
Certificate History
20 Jun 2024
60
60
14 Jun 2024
59
65
8 Mar 2010
52
66
28 Aug 2021
60
60
Total Floor Area
26 sq m
Current CO2 Emissions Level
2.1
Potential CO2 Emissions Level
2.1
CO2 per sq m per Year
81
Mains Gas Available
Yes
Habitable Rooms
1
Number of Extensions
0
Address
468 Howlands
Date
26 Jul 2024
Current
Potential
65
83
Property Type
House
Built Form
End-Terrace
Constructed
1950-1966
+
Certificate History
26 Jul 2024
65
83
Total Floor Area
84 sq m
Current CO2 Emissions Level
3.5
Potential CO2 Emissions Level
1.5
CO2 per sq m per Year
41
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
472 Howlands
Date
8 Feb 2013
Current
Potential
66
81
Property Type
House
Built Form
Mid-Terrace
Constructed
1950-1966
+
Certificate History
8 Feb 2013
66
81
Total Floor Area
79 sq m
Current CO2 Emissions Level
3.1
Potential CO2 Emissions Level
1.7
CO2 per sq m per Year
39
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
484 Howlands
Date
4 Jul 2024
Current
Potential
70
86
Property Type
House
Built Form
End-Terrace
Constructed
1950-1966
+
Certificate History
4 Jul 2024
70
86
7 Dec 2018
70
85
21 Jan 2015
68
86
Total Floor Area
72 sq m
Current CO2 Emissions Level
2.7
Potential CO2 Emissions Level
1.1
CO2 per sq m per Year
37
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
486 Howlands
Date
24 Jan 2017
Current
Potential
55
86
Property Type
House
Built Form
End-Terrace
Constructed
1967-1975
+
Certificate History
24 Jan 2017
55
86
27 Jun 2016
66
85
6 Aug 2013
63
85
17 Apr 2010
67
78
Total Floor Area
95 sq m
Current CO2 Emissions Level
5.4
Potential CO2 Emissions Level
1.5
CO2 per sq m per Year
57
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
1
Address
496 Howlands
Date
23 Oct 2019
Current
Potential
59
83
Property Type
House
Built Form
End-Terrace
Constructed
1950-1966
+
Certificate History
23 Oct 2019
59
83
Total Floor Area
96 sq m
Current CO2 Emissions Level
4.8
Potential CO2 Emissions Level
1.8
CO2 per sq m per Year
50
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
1
Address
502 Howlands
Date
9 Oct 2016
Current
Potential
71
87
Property Type
House
Built Form
Mid-Terrace
Constructed
1950-1966
+
Certificate History
9 Oct 2016
71
87
Total Floor Area
82 sq m
Current CO2 Emissions Level
2.8
Potential CO2 Emissions Level
1.1
CO2 per sq m per Year
34
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
506 Howlands
Date
4 Jul 2024
Current
Potential
74
87
Property Type
House
Built Form
Mid-Terrace
Constructed
1950-1966
+
Certificate History
4 Jul 2024
74
87
Total Floor Area
83 sq m
Current CO2 Emissions Level
2.5
Potential CO2 Emissions Level
1.1
CO2 per sq m per Year
31
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
510 Howlands
Date
12 Nov 2013
Current
Potential
66
80
Property Type
House
Built Form
End-Terrace
Constructed
1950-1966
+
Certificate History
12 Nov 2013
66
80
22 Apr 2011
47
67
Total Floor Area
70 sq m
Current CO2 Emissions Level
2.9
Potential CO2 Emissions Level
1.6
CO2 per sq m per Year
41
Mains Gas Available
Yes
Habitable Rooms
4
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.