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PROPERTY ENERGY EFFICIENCY CERTIFICATE DETAILS
Sewells, WELWYN GARDEN CITY, AL8 7AQ

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 Sewells, AL8 7AQ 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 Sewells, WELWYN GARDEN CITY, AL8 7AQ
Period Covered: 2008 - 31 January 2025

Address
Inspection Date
Current
Potential
Property Type
Built Form
Constructed
Address
10 Sewells
Date
22 Sep 2009
Current
Potential
59
75
Property Type
House
Built Form
Semi-Detached
Constructed
1950-1966
+
Certificate History
22 Sep 2009
59
75
Total Floor Area
78 sq m
Current CO2 Emissions Level
4.3
Potential CO2 Emissions Level
2.7
CO2 per sq m per Year
56
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
1
Address
11 Sewells
Date
5 Jul 2016
Current
Potential
67
81
Property Type
House
Built Form
Mid-Terrace
Constructed
1950-1966
+
Certificate History
5 Jul 2016
67
81
Total Floor Area
104 sq m
Current CO2 Emissions Level
4.0
Potential CO2 Emissions Level
2.3
CO2 per sq m per Year
39
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
2
Address
11 SEWELLS, WELWYN GARDEN CITY
Date
26 Mar 2021
Current
Potential
65
82
Property Type
House
Built Form
Mid-Terrace
Constructed
1950-1966
+
Certificate History
26 Mar 2021
65
82
Total Floor Area
107 sq m
Current CO2 Emissions Level
4.4
Potential CO2 Emissions Level
2.2
CO2 per sq m per Year
41
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
2
Address
12 SEWELLS
Date
22 Jun 2021
Current
Potential
62
87
Property Type
House
Built Form
Mid-Terrace
Constructed
1950-1966
+
Certificate History
22 Jun 2021
62
87
Total Floor Area
74 sq m
Current CO2 Emissions Level
3.7
Potential CO2 Emissions Level
1.1
CO2 per sq m per Year
50
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
0
Address
13 Sewells
Date
28 Jun 2024
Current
Potential
71
86
Property Type
House
Built Form
Mid-Terrace
Constructed
1950-1966
+
Certificate History
28 Jun 2024
71
86
Total Floor Area
85 sq m
Current CO2 Emissions Level
2.9
Potential CO2 Emissions Level
1.4
CO2 per sq m per Year
34
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
1
Address
14 Sewells
Date
28 Jun 2024
Current
Potential
58
80
Property Type
House
Built Form
Semi-Detached
Constructed
1950-1966
+
Certificate History
28 Jun 2024
58
80
Total Floor Area
111 sq m
Current CO2 Emissions Level
6.2
Potential CO2 Emissions Level
3.1
CO2 per sq m per Year
56
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
1
Address
15 Sewells
Date
4 Oct 2024
Current
Potential
75
88
Property Type
House
Built Form
Mid-Terrace
Constructed
1950-1966
+
Certificate History
4 Oct 2024
75
88
12 Jan 2015
63
87
Total Floor Area
91 sq m
Current CO2 Emissions Level
2.6
Potential CO2 Emissions Level
1.2
CO2 per sq m per Year
28
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
2 Sewells
Date
26 Oct 2010
Current
Potential
70
75
Property Type
House
Built Form
Semi-Detached
Constructed
1950-1966
+
Certificate History
26 Oct 2010
70
75
Total Floor Area
85 sq m
Current CO2 Emissions Level
3.3
Potential CO2 Emissions Level
2.8
CO2 per sq m per Year
39
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
4 Sewells
Date
22 Nov 2024
Current
Potential
68
87
Property Type
House
Built Form
Mid-Terrace
Constructed
1950-1966
+
Certificate History
22 Nov 2024
68
87
Total Floor Area
83 sq m
Current CO2 Emissions Level
3.2
Potential CO2 Emissions Level
1.2
CO2 per sq m per Year
39
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
1
Address
5 Sewells
Date
21 Sep 2009
Current
Potential
79
81
Property Type
House
Built Form
Mid-Terrace
Constructed
1950-1966
+
Certificate History
21 Sep 2009
79
81
Total Floor Area
81 sq m
Current CO2 Emissions Level
2.2
Potential CO2 Emissions Level
2.1
CO2 per sq m per Year
27
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
6 Sewells
Date
18 Aug 2013
Current
Potential
67
86
Property Type
House
Built Form
Semi-Detached
Constructed
1950-1966
+
Certificate History
18 Aug 2013
67
86
Total Floor Area
130 sq m
Current CO2 Emissions Level
4.4
Potential CO2 Emissions Level
1.8
CO2 per sq m per Year
34
Mains Gas Available
Yes
Habitable Rooms
7
Number of Extensions
1
Address
8 Sewells
Date
7 Jul 2022
Current
Potential
64
80
Property Type
House
Built Form
Mid-Terrace
Constructed
1950-1966
+
Certificate History
7 Jul 2022
64
80
Total Floor Area
79 sq m
Current CO2 Emissions Level
3.7
Potential CO2 Emissions Level
2.0
CO2 per sq m per Year
47
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
1
Address
9 Sewells
Date
18 Mar 2024
Current
Potential
70
86
Property Type
House
Built Form
Mid-Terrace
Constructed
1950-1966
+
Certificate History
18 Mar 2024
70
86
21 Jul 2023
70
86
Total Floor Area
94 sq m
Current CO2 Emissions Level
3.3
Potential CO2 Emissions Level
1.4
CO2 per sq m per Year
35
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.

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