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

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

Address
Inspection Date
Current
Potential
Property Type
Built Form
Constructed
Address
305 Knightsfield
Date
3 Oct 2013
Current
Potential
64
80
Property Type
House
Built Form
Detached
Constructed
1930-1949
+
Certificate History
3 Oct 2013
64
80
Total Floor Area
187 sq m
Current CO2 Emissions Level
6.9
Potential CO2 Emissions Level
3.7
CO2 per sq m per Year
37
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
2
Address
307 Knightsfield
Date
14 Jan 2014
Current
Potential
66
81
Property Type
House
Built Form
Detached
Constructed
1950-1966
+
Certificate History
14 Jan 2014
66
81
14 Jan 2014
69
81
Total Floor Area
141 sq m
Current CO2 Emissions Level
5.0
Potential CO2 Emissions Level
2.6
CO2 per sq m per Year
35
Mains Gas Available
Yes
Habitable Rooms
8
Number of Extensions
2
Address
309 Knightsfield
Date
7 Jun 2016
Current
Potential
47
88
Property Type
House
Built Form
Detached
Constructed
1930-1949
+
Certificate History
7 Jun 2016
47
88
21 Aug 2012
63
72
Total Floor Area
175 sq m
Current CO2 Emissions Level
11.0
Potential CO2 Emissions Level
3.1
CO2 per sq m per Year
61
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
1
Address
311 Knightsfield
Date
5 Sep 2012
Current
Potential
65
84
Property Type
House
Built Form
Semi-Detached
Constructed
1950-1966
+
Certificate History
5 Sep 2012
65
84
Total Floor Area
128 sq m
Current CO2 Emissions Level
4.8
Potential CO2 Emissions Level
1.9
CO2 per sq m per Year
38
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
1
Address
315 Knightsfield
Date
22 Sep 2016
Current
Potential
56
78
Property Type
House
Built Form
Detached
Constructed
1950-1966
+
Certificate History
22 Sep 2016
56
78
23 Mar 2009
61
70
Total Floor Area
208 sq m
Current CO2 Emissions Level
10.0
Potential CO2 Emissions Level
4.9
CO2 per sq m per Year
49
Mains Gas Available
Yes
Habitable Rooms
8
Number of Extensions
2
Address
325 Knightsfield
Date
20 Jun 2013
Current
Potential
61
86
Property Type
House
Built Form
End-Terrace
Constructed
1950-1966
+
Certificate History
20 Jun 2013
61
86
Total Floor Area
122 sq m
Current CO2 Emissions Level
5.1
Potential CO2 Emissions Level
1.6
CO2 per sq m per Year
42
Mains Gas Available
Yes
Habitable Rooms
7
Number of Extensions
0
Address
329 Knightsfield
Date
27 Jun 2012
Current
Potential
56
84
Property Type
House
Built Form
Mid-Terrace
Constructed
1950-1966
+
Certificate History
27 Jun 2012
56
84
Total Floor Area
112 sq m
Current CO2 Emissions Level
5.6
Potential CO2 Emissions Level
1.8
CO2 per sq m per Year
50
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.
Contains Royal Mail data © Royal Mail copyright and Database right 2024.