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PROPERTY ENERGY EFFICIENCY CERTIFICATE DETAILS
Blythway, WELWYN GARDEN CITY, AL7 1DN

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 Blythway, AL7 1DN 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 Blythway, WELWYN GARDEN CITY, AL7 1DN
Period Covered: 2008 - 31 October 2024

Address
Inspection Date
Current
Potential
Property Type
Built Form
Constructed
Address
123 Blythway
Date
15 Oct 2024
Current
Potential
65
84
Property Type
Bungalow
Built Form
Detached
Constructed
1967-1975
+
Certificate History
15 Oct 2024
65
84
Total Floor Area
47 sq m
Current CO2 Emissions Level
2.5
Potential CO2 Emissions Level
1.0
CO2 per sq m per Year
53
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
125 Blythway
Date
4 Mar 2015
Current
Potential
56
82
Property Type
Bungalow
Built Form
Detached
Constructed
1950-1966
+
Certificate History
4 Mar 2015
56
82
Total Floor Area
55 sq m
Current CO2 Emissions Level
3.3
Potential CO2 Emissions Level
1.2
CO2 per sq m per Year
61
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
3
Address
131 Blythway
Date
12 Sep 2013
Current
Potential
37
70
Property Type
House
Built Form
Mid-Terrace
Constructed
1950-1966
+
Certificate History
12 Sep 2013
37
70
Total Floor Area
108 sq m
Current CO2 Emissions Level
8.2
Potential CO2 Emissions Level
3.7
CO2 per sq m per Year
76
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
0
Address
135 Blythway
Date
15 Dec 2023
Current
Potential
73
85
Property Type
House
Built Form
Mid-Terrace
Constructed
1976-1982
+
Certificate History
15 Dec 2023
73
85
2 Aug 2010
64
73
Total Floor Area
117 sq m
Current CO2 Emissions Level
3.5
Potential CO2 Emissions Level
2.0
CO2 per sq m per Year
30
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
1
Address
141 BLYTHWAY, WELWYN GARDEN CITY
Date
18 Jan 2021
Current
Potential
63
88
Property Type
Bungalow
Built Form
Semi-Detached
Constructed
1950-1966
+
Certificate History
18 Jan 2021
63
88
Total Floor Area
54 sq m
Current CO2 Emissions Level
2.9
Potential CO2 Emissions Level
0.8
CO2 per sq m per Year
53
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
143 Blythway
Date
28 Jan 2019
Current
Potential
64
78
Property Type
House
Built Form
Semi-Detached
Constructed
1950-1966
+
Certificate History
28 Jan 2019
64
78
Total Floor Area
78 sq m
Current CO2 Emissions Level
3.6
Potential CO2 Emissions Level
2.2
CO2 per sq m per Year
46
Mains Gas Available
Yes
Habitable Rooms
5
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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