PROPERTY ENERGY EFFICIENCY CERTIFICATE DETAILS
Mimram Walk, WELWYN, AL6 9EZ

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 Mimram Walk, AL6 9EZ 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 Mimram Walk, WELWYN, AL6 9EZ
Period Covered: 2008 - 31 October 2024

Address
Inspection Date
Current
Potential
Property Type
Built Form
Constructed
Address
2 Mimram Walk
Date
26 Oct 2011
Current
Potential
62
62
Property Type
House
Built Form
End-Terrace
Constructed
before 1900
+
Certificate History
26 Oct 2011
62
62
Total Floor Area
90 sq m
Current CO2 Emissions Level
4.2
Potential CO2 Emissions Level
4.2
CO2 per sq m per Year
46
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
1
Address
3 Mimram Walk
Date
23 Feb 2023
Current
Potential
49
67
Property Type
House
Built Form
Semi-Detached
Constructed
before 1900
+
Certificate History
23 Feb 2023
49
67
9 May 2012
47
69
Total Floor Area
100 sq m
Current CO2 Emissions Level
5.1
Potential CO2 Emissions Level
3.1
CO2 per sq m per Year
51
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
1
Address
5 Mimram Walk
Date
26 Nov 2015
Current
Potential
44
70
Property Type
House
Built Form
Enclosed End-Terrace
Constructed
before 1900
+
Certificate History
26 Nov 2015
44
70
Total Floor Area
77 sq m
Current CO2 Emissions Level
4.7
Potential CO2 Emissions Level
2.3
CO2 per sq m per Year
61
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
1
Address
6 Mimram Walk
Date
12 Aug 2020
Current
Potential
41
98
Property Type
House
Built Form
Mid-Terrace
Constructed
before 1900
+
Certificate History
12 Aug 2020
41
98
Total Floor Area
38 sq m
Current CO2 Emissions Level
3.7
Potential CO2 Emissions Level
0.7
CO2 per sq m per Year
98
Mains Gas Available
No
Habitable Rooms
2
Number of Extensions
0
Address
7 Mimram Walk
Date
10 Aug 2017
Current
Potential
48
72
Property Type
House
Built Form
End-Terrace
Constructed
1900-1929
+
Certificate History
10 Aug 2017
48
72
29 Jun 2017
64
88
Total Floor Area
40 sq m
Current CO2 Emissions Level
2.9
Potential CO2 Emissions Level
1.3
CO2 per sq m per Year
73
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
8 Mimram Walk
Date
18 Mar 2013
Current
Potential
60
90
Property Type
House
Built Form
End-Terrace
Constructed
before 1900
+
Certificate History
18 Mar 2013
60
90
Total Floor Area
35 sq m
Current CO2 Emissions Level
2.3
Potential CO2 Emissions Level
0.3
CO2 per sq m per Year
63
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
9 Mimram Walk
Date
8 Jun 2022
Current
Potential
71
87
Property Type
Bungalow
Built Form
Detached
Constructed
2020
+
Certificate History
8 Jun 2022
71
87
Total Floor Area
50 sq m
Current CO2 Emissions Level
1.9
Potential CO2 Emissions Level
0.8
CO2 per sq m per Year
38
Mains Gas Available
No
Habitable Rooms
0
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.
Contains Royal Mail data © Royal Mail copyright and Database right 2025.