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PROPERTY ENERGY EFFICIENCY CERTIFICATE DETAILS
Welwyn By Pass Road, WELWYN, AL6 9FJ

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 Welwyn By Pass Road, AL6 9FJ 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 Welwyn By Pass Road, WELWYN, AL6 9FJ
Period Covered: 2008 - 31 October 2024

Address
Inspection Date
Current
Potential
Property Type
Built Form
Constructed
Address
10 WELWYN BY PASS ROAD
Date
8 Aug 2021
Current
Potential
78
87
Property Type
House
Built Form
Semi-Detached
Constructed
2007-2011
+
Certificate History
8 Aug 2021
78
87
Total Floor Area
110 sq m
Current CO2 Emissions Level
2.4
Potential CO2 Emissions Level
1.5
CO2 per sq m per Year
22
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
0
Address
10 Welwyn by Pass Road
Date
12 Jun 2011
Current
Potential
81
82
Property Type
House
Built Form
Semi-Detached
Constructed
N/A
+
Certificate History
12 Jun 2011
81
82
Total Floor Area
113 sq m
Current CO2 Emissions Level
1.8
Potential CO2 Emissions Level
1.8
CO2 per sq m per Year
16
Mains Gas Available
No
Habitable Rooms
0
Number of Extensions
0
Address
12 Welwyn By Pass Road
Date
11 Jun 2024
Current
Potential
78
88
Property Type
House
Built Form
End-Terrace
Constructed
2007-2011
+
Certificate History
11 Jun 2024
78
88
Total Floor Area
104 sq m
Current CO2 Emissions Level
2.4
Potential CO2 Emissions Level
1.2
CO2 per sq m per Year
23
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
12 Welwyn by Pass Road
Date
10 Dec 2010
Current
Potential
82
83
Property Type
House
Built Form
End-Terrace
Constructed
N/A
+
Certificate History
10 Dec 2010
82
83
Total Floor Area
113 sq m
Current CO2 Emissions Level
2.0
Potential CO2 Emissions Level
1.9
CO2 per sq m per Year
18
Mains Gas Available
No
Habitable Rooms
0
Number of Extensions
0
Address
14 Welwyn by Pass Road
Date
10 Dec 2010
Current
Potential
84
85
Property Type
House
Built Form
Mid-Terrace
Constructed
N/A
+
Certificate History
10 Dec 2010
84
85
Total Floor Area
113 sq m
Current CO2 Emissions Level
1.8
Potential CO2 Emissions Level
1.7
CO2 per sq m per Year
16
Mains Gas Available
No
Habitable Rooms
0
Number of Extensions
0
Address
16 Welwyn by Pass Road
Date
12 Jun 2011
Current
Potential
82
83
Property Type
House
Built Form
Mid-Terrace
Constructed
N/A
+
Certificate History
12 Jun 2011
82
83
Total Floor Area
113 sq m
Current CO2 Emissions Level
1.8
Potential CO2 Emissions Level
1.7
CO2 per sq m per Year
16
Mains Gas Available
No
Habitable Rooms
0
Number of Extensions
0
Address
18 Welwyn By Pass Road
Date
17 Mar 2022
Current
Potential
78
88
Property Type
House
Built Form
End-Terrace
Constructed
2007-2011
+
Certificate History
17 Mar 2022
78
88
Total Floor Area
114 sq m
Current CO2 Emissions Level
2.6
Potential CO2 Emissions Level
1.4
CO2 per sq m per Year
23
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
0
Address
18 Welwyn by Pass Road
Date
12 Jun 2011
Current
Potential
79
80
Property Type
House
Built Form
End-Terrace
Constructed
N/A
+
Certificate History
12 Jun 2011
79
80
Total Floor Area
117 sq m
Current CO2 Emissions Level
2.3
Potential CO2 Emissions Level
2.2
CO2 per sq m per Year
19
Mains Gas Available
No
Habitable Rooms
0
Number of Extensions
0
Address
2 Welwyn by Pass Road
Date
12 Jun 2011
Current
Potential
79
80
Property Type
House
Built Form
End-Terrace
Constructed
N/A
+
Certificate History
12 Jun 2011
79
80
Total Floor Area
117 sq m
Current CO2 Emissions Level
2.2
Potential CO2 Emissions Level
2.1
CO2 per sq m per Year
19
Mains Gas Available
No
Habitable Rooms
0
Number of Extensions
0
Address
20 Welwyn by Pass Road
Date
24 Feb 2011
Current
Potential
84
84
Property Type
House
Built Form
End-Terrace
Constructed
N/A
+
Certificate History
24 Feb 2011
84
84
Total Floor Area
117 sq m
Current CO2 Emissions Level
1.7
Potential CO2 Emissions Level
1.7
CO2 per sq m per Year
15
Mains Gas Available
No
Habitable Rooms
0
Number of Extensions
0
Address
22 Welwyn by Pass Road
Date
24 Feb 2011
Current
Potential
86
87
Property Type
House
Built Form
Mid-Terrace
Constructed
N/A
+
Certificate History
24 Feb 2011
86
87
Total Floor Area
113 sq m
Current CO2 Emissions Level
1.4
Potential CO2 Emissions Level
1.3
CO2 per sq m per Year
12
Mains Gas Available
No
Habitable Rooms
0
Number of Extensions
0
Address
24 Welwyn by Pass Road
Date
24 Feb 2011
Current
Potential
86
87
Property Type
House
Built Form
Mid-Terrace
Constructed
N/A
+
Certificate History
24 Feb 2011
86
87
Total Floor Area
113 sq m
Current CO2 Emissions Level
1.4
Potential CO2 Emissions Level
1.3
CO2 per sq m per Year
12
Mains Gas Available
No
Habitable Rooms
0
Number of Extensions
0
Address
26 Welwyn by Pass Road
Date
24 Feb 2011
Current
Potential
86
87
Property Type
House
Built Form
Mid-Terrace
Constructed
N/A
+
Certificate History
24 Feb 2011
86
87
Total Floor Area
113 sq m
Current CO2 Emissions Level
1.4
Potential CO2 Emissions Level
1.3
CO2 per sq m per Year
12
Mains Gas Available
No
Habitable Rooms
0
Number of Extensions
0
Address
28 Welwyn by Pass Road
Date
24 Feb 2011
Current
Potential
86
87
Property Type
House
Built Form
Mid-Terrace
Constructed
N/A
+
Certificate History
24 Feb 2011
86
87
Total Floor Area
113 sq m
Current CO2 Emissions Level
1.4
Potential CO2 Emissions Level
1.3
CO2 per sq m per Year
12
Mains Gas Available
No
Habitable Rooms
0
Number of Extensions
0
Address
30 Welwyn by Pass Road
Date
24 Feb 2011
Current
Potential
85
86
Property Type
House
Built Form
Mid-Terrace
Constructed
N/A
+
Certificate History
24 Feb 2011
85
86
Total Floor Area
71 sq m
Current CO2 Emissions Level
1.1
Potential CO2 Emissions Level
1.1
CO2 per sq m per Year
16
Mains Gas Available
No
Habitable Rooms
0
Number of Extensions
0
Address
4 Welwyn by Pass Road
Date
12 Jun 2011
Current
Potential
81
81
Property Type
House
Built Form
Mid-Terrace
Constructed
N/A
+
Certificate History
12 Jun 2011
81
81
Total Floor Area
119 sq m
Current CO2 Emissions Level
2.1
Potential CO2 Emissions Level
2.0
CO2 per sq m per Year
18
Mains Gas Available
No
Habitable Rooms
0
Number of Extensions
0
Address
6 Welwyn by Pass Road
Date
12 Jun 2011
Current
Potential
79
80
Property Type
House
Built Form
End-Terrace
Constructed
N/A
+
Certificate History
12 Jun 2011
79
80
Total Floor Area
131 sq m
Current CO2 Emissions Level
2.5
Potential CO2 Emissions Level
2.4
CO2 per sq m per Year
19
Mains Gas Available
No
Habitable Rooms
0
Number of Extensions
0
Address
8 Welwyn by Pass Road
Date
12 Jun 2011
Current
Potential
81
82
Property Type
House
Built Form
Semi-Detached
Constructed
N/A
+
Certificate History
12 Jun 2011
81
82
Total Floor Area
113 sq m
Current CO2 Emissions Level
1.8
Potential CO2 Emissions Level
1.8
CO2 per sq m per Year
16
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.
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