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

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 7HA 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 7HA
Period Covered: 2008 - 31 October 2024

Address
Inspection Date
Current
Potential
Property Type
Built Form
Constructed
Address
28 KNIGHTSFIELD
Date
20 Jul 2021
Current
Potential
67
83
Property Type
House
Built Form
Mid-Terrace
Constructed
1950-1966
+
Certificate History
20 Jul 2021
67
83
Total Floor Area
74 sq m
Current CO2 Emissions Level
3.0
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
28 Knightsfield
Date
25 Aug 2011
Current
Potential
66
71
Property Type
House
Built Form
Mid-Terrace
Constructed
1950-1966
+
Certificate History
25 Aug 2011
66
71
Total Floor Area
73 sq m
Current CO2 Emissions Level
3.1
Potential CO2 Emissions Level
2.6
CO2 per sq m per Year
42
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
36 KNIGHTSFIELD, WELWYN GARDEN CITY
Date
14 Dec 2020
Current
Potential
59
82
Property Type
House
Built Form
Mid-Terrace
Constructed
1950-1966
+
Certificate History
14 Dec 2020
59
82
Total Floor Area
75 sq m
Current CO2 Emissions Level
4.2
Potential CO2 Emissions Level
1.7
CO2 per sq m per Year
56
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
1
Address
40 Knightsfield
Date
5 Jul 2011
Current
Potential
69
73
Property Type
House
Built Form
End-Terrace
Constructed
1950-1966
+
Certificate History
5 Jul 2011
69
73
Total Floor Area
84 sq m
Current CO2 Emissions Level
3.0
Potential CO2 Emissions Level
2.6
CO2 per sq m per Year
36
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
1
Address
46 Knightsfield
Date
2 Nov 2015
Current
Potential
68
83
Property Type
House
Built Form
Mid-Terrace
Constructed
1950-1966
+
Certificate History
2 Nov 2015
68
83
Total Floor Area
75 sq m
Current CO2 Emissions Level
2.8
Potential CO2 Emissions Level
1.3
CO2 per sq m per Year
37
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
50 Knightsfield
Date
27 Jun 2017
Current
Potential
64
82
Property Type
House
Built Form
Semi-Detached
Constructed
1967-1975
+
Certificate History
27 Jun 2017
64
82
Total Floor Area
109 sq m
Current CO2 Emissions Level
4.6
Potential CO2 Emissions Level
2.2
CO2 per sq m per Year
42
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
1
Address
52 Knightsfield
Date
12 Aug 2015
Current
Potential
61
86
Property Type
House
Built Form
Mid-Terrace
Constructed
1967-1975
+
Certificate History
12 Aug 2015
61
86
Total Floor Area
86 sq m
Current CO2 Emissions Level
4.3
Potential CO2 Emissions Level
1.3
CO2 per sq m per Year
50
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
1
Address
56 Knightsfield
Date
4 Jun 2018
Current
Potential
53
77
Property Type
House
Built Form
Mid-Terrace
Constructed
1950-1966
+
Certificate History
4 Jun 2018
53
77
Total Floor Area
72 sq m
Current CO2 Emissions Level
4.6
Potential CO2 Emissions Level
2.2
CO2 per sq m per Year
64
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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