Advanced

PROPERTY ENERGY EFFICIENCY CERTIFICATE DETAILS
Knella Road, WELWYN GARDEN CITY, AL7 3NE

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 Knella Road, AL7 3NE 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 Knella Road, WELWYN GARDEN CITY, AL7 3NE
Period Covered: 2008 - 31 October 2024

Address
Inspection Date
Current
Potential
Property Type
Built Form
Constructed
Address
52 Knella Road
Date
1 Dec 2021
Current
Potential
67
77
Property Type
House
Built Form
End-Terrace
Constructed
1991-1995
+
Certificate History
1 Dec 2021
67
77
17 Oct 2021
54
74
3 Oct 2016
69
84
Total Floor Area
128 sq m
Current CO2 Emissions Level
4.5
Potential CO2 Emissions Level
3.1
CO2 per sq m per Year
35
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
58 Knella Road
Date
1 Dec 2021
Current
Potential
67
77
Property Type
House
Built Form
End-Terrace
Constructed
1991-1995
+
Certificate History
1 Dec 2021
67
77
17 Oct 2021
54
74
20 Oct 2016
69
84
Total Floor Area
128 sq m
Current CO2 Emissions Level
4.6
Potential CO2 Emissions Level
3.1
CO2 per sq m per Year
36
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
60 Knella Road
Date
21 Dec 2021
Current
Potential
67
82
Property Type
House
Built Form
End-Terrace
Constructed
1991-1995
+
Certificate History
21 Dec 2021
67
82
17 Oct 2021
54
78
4 Oct 2016
72
83
Total Floor Area
116 sq m
Current CO2 Emissions Level
4.4
Potential CO2 Emissions Level
2.4
CO2 per sq m per Year
38
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
2
Address
62 Knella Road
Date
4 Oct 2016
Current
Potential
69
84
Property Type
House
Built Form
Mid-Terrace
Constructed
1996-2002
+
Certificate History
4 Oct 2016
69
84
Total Floor Area
105 sq m
Current CO2 Emissions Level
3.7
Potential CO2 Emissions Level
1.9
CO2 per sq m per Year
36
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
64 Knella Road
Date
4 Oct 2016
Current
Potential
68
84
Property Type
House
Built Form
Mid-Terrace
Constructed
1996-2002
+
Certificate History
4 Oct 2016
68
84
Total Floor Area
105 sq m
Current CO2 Emissions Level
3.7
Potential CO2 Emissions Level
1.9
CO2 per sq m per Year
36
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
0
Address
66 Knella Road
Date
20 Oct 2016
Current
Potential
65
85
Property Type
House
Built Form
Mid-Terrace
Constructed
1996-2002
+
Certificate History
20 Oct 2016
65
85
20 Oct 2016
71
85
Total Floor Area
105 sq m
Current CO2 Emissions Level
3.8
Potential CO2 Emissions Level
1.7
CO2 per sq m per Year
36
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
68 Knella Road
Date
21 Dec 2021
Current
Potential
70
84
Property Type
House
Built Form
End-Terrace
Constructed
1991-1995
+
Certificate History
21 Dec 2021
70
84
17 Oct 2021
54
81
18 Oct 2016
69
86
Total Floor Area
88 sq m
Current CO2 Emissions Level
3.2
Potential CO2 Emissions Level
1.7
CO2 per sq m per Year
36
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
0
Address
70 Knella Road
Date
1 Dec 2010
Current
Potential
67
75
Property Type
House
Built Form
End-Terrace
Constructed
1950-1966
+
Certificate History
1 Dec 2010
67
75
Total Floor Area
80 sq m
Current CO2 Emissions Level
3.5
Potential CO2 Emissions Level
2.7
CO2 per sq m per Year
44
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
72 Knella Road
Date
30 Nov 2023
Current
Potential
69
86
Property Type
House
Built Form
Mid-Terrace
Constructed
1930-1949
+
Certificate History
30 Nov 2023
69
86
Total Floor Area
67 sq m
Current CO2 Emissions Level
2.6
Potential CO2 Emissions Level
1.1
CO2 per sq m per Year
38
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
76 Knella Road
Date
16 Mar 2009
Current
Potential
66
76
Property Type
House
Built Form
Mid-Terrace
Constructed
1950-1966
+
Certificate History
16 Mar 2009
66
76
Total Floor Area
70 sq m
Current CO2 Emissions Level
3.4
Potential CO2 Emissions Level
2.4
CO2 per sq m per Year
48
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
78 Knella Road
Date
18 Mar 2024
Current
Potential
67
86
Property Type
House
Built Form
Mid-Terrace
Constructed
1930-1949
+
Certificate History
18 Mar 2024
67
86
Total Floor Area
71 sq m
Current CO2 Emissions Level
3.1
Potential CO2 Emissions Level
1.1
CO2 per sq m per Year
43
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
2
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 2024.