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PROPERTY ENERGY EFFICIENCY CERTIFICATE DETAILS
Knightsfield, WELWYN GARDEN CITY, AL8 7QL

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 Knightsfield, AL8 7QL 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 Knightsfield, WELWYN GARDEN CITY, AL8 7QL
Period Covered: 2008 - 30 June 2024

Address
Inspection Date
Current
Potential
Property Type
Built Form
Constructed
Address
197 Knightsfield
Date
19 May 2012
Current
Potential
62
90
Property Type
Bungalow
Built Form
Mid-Terrace
Constructed
1950-1966
+
Certificate History
19 May 2012
62
90
Total Floor Area
39 sq m
Current CO2 Emissions Level
2.2
Potential CO2 Emissions Level
0.3
CO2 per sq m per Year
57
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
199 KNIGHTSFIELD, WELWYN GARDEN CITY
Date
16 Feb 2021
Current
Potential
67
88
Property Type
Bungalow
Built Form
End-Terrace
Constructed
1950-1966
+
Certificate History
16 Feb 2021
67
88
Total Floor Area
37 sq m
Current CO2 Emissions Level
1.9
Potential CO2 Emissions Level
0.6
CO2 per sq m per Year
52
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
201 Knightsfield
Date
1 Feb 2013
Current
Potential
59
73
Property Type
House
Built Form
End-Terrace
Constructed
1950-1966
+
Certificate History
1 Feb 2013
59
73
Total Floor Area
98 sq m
Current CO2 Emissions Level
4.6
Potential CO2 Emissions Level
3.1
CO2 per sq m per Year
47
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
1
Address
211 Knightsfield
Date
20 May 2015
Current
Potential
73
86
Property Type
House
Built Form
Mid-Terrace
Constructed
1950-1966
+
Certificate History
20 May 2015
73
86
Total Floor Area
101 sq m
Current CO2 Emissions Level
3.0
Potential CO2 Emissions Level
1.5
CO2 per sq m per Year
30
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
1
Address
215 Knightsfield
Date
27 Feb 2015
Current
Potential
47
87
Property Type
House
Built Form
Semi-Detached
Constructed
1967-1975
+
Certificate History
27 Feb 2015
47
87
Total Floor Area
70 sq m
Current CO2 Emissions Level
5.3
Potential CO2 Emissions Level
1.0
CO2 per sq m per Year
75
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
217 Knightsfield
Date
9 Mar 2010
Current
Potential
62
76
Property Type
House
Built Form
Mid-Terrace
Constructed
1950-1966
+
Certificate History
9 Mar 2010
62
76
Total Floor Area
73 sq m
Current CO2 Emissions Level
3.9
Potential CO2 Emissions Level
2.5
CO2 per sq m per Year
53
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
219 Knightsfield
Date
3 Apr 2016
Current
Potential
51
75
Property Type
House
Built Form
End-Terrace
Constructed
1950-1966
+
Certificate History
3 Apr 2016
51
75
13 Apr 2014
55
81
Total Floor Area
83 sq m
Current CO2 Emissions Level
5.9
Potential CO2 Emissions Level
3.3
CO2 per sq m per Year
71
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
223 Knightsfield
Date
22 Aug 2017
Current
Potential
59
87
Property Type
Bungalow
Built Form
Detached
Constructed
1950-1966
+
Certificate History
22 Aug 2017
59
87
Total Floor Area
59 sq m
Current CO2 Emissions Level
3.4
Potential CO2 Emissions Level
0.9
CO2 per sq m per Year
59
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
225 Knightsfield
Date
6 Jun 2018
Current
Potential
64
88
Property Type
House
Built Form
End-Terrace
Constructed
1950-1966
+
Certificate History
6 Jun 2018
64
88
Total Floor Area
70 sq m
Current CO2 Emissions Level
3.2
Potential CO2 Emissions Level
1.0
CO2 per sq m per Year
46
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.

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