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PROPERTY ENERGY EFFICIENCY CERTIFICATE DETAILS
Maran Avenue, WELWYN, AL6 9HS

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 Maran Avenue, AL6 9HS 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 Maran Avenue, WELWYN, AL6 9HS
Period Covered: 2008 - 31 October 2024

Address
Inspection Date
Current
Potential
Property Type
Built Form
Constructed
Address
12 Maran Avenue
Date
2 Nov 2011
Current
Potential
68
71
Property Type
House
Built Form
Semi-Detached
Constructed
1950-1966
+
Certificate History
2 Nov 2011
68
71
Total Floor Area
88 sq m
Current CO2 Emissions Level
3.2
Potential CO2 Emissions Level
3.0
CO2 per sq m per Year
32
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
1
Address
14 Maran Avenue
Date
17 Feb 2016
Current
Potential
64
83
Property Type
House
Built Form
Semi-Detached
Constructed
1930-1949
+
Certificate History
17 Feb 2016
64
83
10 Feb 2010
54
58
Total Floor Area
86 sq m
Current CO2 Emissions Level
3.9
Potential CO2 Emissions Level
1.7
CO2 per sq m per Year
45
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
1
Address
16 Maran Avenue
Date
4 Oct 2019
Current
Potential
65
84
Property Type
House
Built Form
Semi-Detached
Constructed
1930-1949
+
Certificate History
4 Oct 2019
65
84
Total Floor Area
72 sq m
Current CO2 Emissions Level
3.3
Potential CO2 Emissions Level
1.5
CO2 per sq m per Year
46
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
1
Address
18 Maran Avenue
Date
30 Mar 2011
Current
Potential
61
72
Property Type
House
Built Form
Semi-Detached
Constructed
1930-1949
+
Certificate History
30 Mar 2011
61
72
Total Floor Area
69 sq m
Current CO2 Emissions Level
3.8
Potential CO2 Emissions Level
2.7
CO2 per sq m per Year
56
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
1
Address
19 Maran Avenue
Date
14 Jun 2015
Current
Potential
45
78
Property Type
House
Built Form
Semi-Detached
Constructed
1930-1949
+
Certificate History
14 Jun 2015
45
78
Total Floor Area
96 sq m
Current CO2 Emissions Level
6.8
Potential CO2 Emissions Level
2.6
CO2 per sq m per Year
71
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
1
Address
2 MARAN AVENUE
Date
20 Jun 2021
Current
Potential
69
88
Property Type
House
Built Form
Semi-Detached
Constructed
1930-1949
+
Certificate History
20 Jun 2021
69
88
Total Floor Area
85 sq m
Current CO2 Emissions Level
3.1
Potential CO2 Emissions Level
1.1
CO2 per sq m per Year
37
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
2
Address
21 Maran Avenue
Date
19 May 2024
Current
Potential
63
74
Property Type
House
Built Form
Semi-Detached
Constructed
1930-1949
+
Certificate History
19 May 2024
63
74
18 May 2014
57
78
10 Nov 2011
41
49
Total Floor Area
70 sq m
Current CO2 Emissions Level
3.1
Potential CO2 Emissions Level
1.7
CO2 per sq m per Year
45
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
1
Address
22 Maran Avenue
Date
26 Nov 2014
Current
Potential
60
78
Property Type
House
Built Form
Semi-Detached
Constructed
1930-1949
+
Certificate History
26 Nov 2014
60
78
7 May 2014
67
79
Total Floor Area
116 sq m
Current CO2 Emissions Level
4.8
Potential CO2 Emissions Level
2.5
CO2 per sq m per Year
42
Mains Gas Available
Yes
Habitable Rooms
7
Number of Extensions
1
Address
2a Maran Avenue, Welwyn
Date
8 Jun 2021
Current
Potential
81
93
Property Type
House
Built Form
Detached
Constructed
2020
+
Certificate History
8 Jun 2021
81
93
Total Floor Area
75 sq m
Current CO2 Emissions Level
1.5
Potential CO2 Emissions Level
0.3
CO2 per sq m per Year
20
Mains Gas Available
No
Habitable Rooms
0
Number of Extensions
0
Address
4 Maran Avenue
Date
18 Feb 2010
Current
Potential
38
51
Property Type
House
Built Form
Semi-Detached
Constructed
1900-1929
+
Certificate History
18 Feb 2010
38
51
Total Floor Area
72 sq m
Current CO2 Emissions Level
5.8
Potential CO2 Emissions Level
4.1
CO2 per sq m per Year
77
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
1
Address
5 Maran Avenue
Date
11 Nov 2019
Current
Potential
58
85
Property Type
House
Built Form
Semi-Detached
Constructed
1950-1966
+
Certificate History
11 Nov 2019
58
85
Total Floor Area
85 sq m
Current CO2 Emissions Level
4.6
Potential CO2 Emissions Level
1.4
CO2 per sq m per Year
54
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
1
Address
6 Maran Avenue
Date
26 May 2022
Current
Potential
56
84
Property Type
House
Built Form
Semi-Detached
Constructed
1930-1949
+
Certificate History
26 May 2022
56
84
12 Jun 2012
50
82
Total Floor Area
70 sq m
Current CO2 Emissions Level
3.9
Potential CO2 Emissions Level
1.3
CO2 per sq m per Year
56
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
1
Address
7 Maran Avenue
Date
17 May 2012
Current
Potential
57
80
Property Type
House
Built Form
Semi-Detached
Constructed
1930-1949
+
Certificate History
17 May 2012
57
80
Total Floor Area
87 sq m
Current CO2 Emissions Level
4.5
Potential CO2 Emissions Level
1.9
CO2 per sq m per Year
51
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
1
Address
8 Maran Avenue
Date
20 Apr 2013
Current
Potential
63
85
Property Type
House
Built Form
Semi-Detached
Constructed
1930-1949
+
Certificate History
20 Apr 2013
63
85
Total Floor Area
87 sq m
Current CO2 Emissions Level
3.7
Potential CO2 Emissions Level
1.2
CO2 per sq m per Year
43
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
2
Address
9 Maran Avenue
Date
24 Jan 2014
Current
Potential
50
83
Property Type
House
Built Form
Semi-Detached
Constructed
1930-1949
+
Certificate History
24 Jan 2014
50
83
Total Floor Area
127 sq m
Current CO2 Emissions Level
7.1
Potential CO2 Emissions Level
2.1
CO2 per sq m per Year
56
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
1
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.
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