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PROPERTY ENERGY EFFICIENCY CERTIFICATE DETAILS
Heronswood Road, WELWYN GARDEN CITY, AL7 3EW

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 Heronswood Road, AL7 3EW 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 Heronswood Road, WELWYN GARDEN CITY, AL7 3EW
Period Covered: 2008 - 31 October 2024

Address
Inspection Date
Current
Potential
Property Type
Built Form
Constructed
Address
101 Heronswood Road
Date
2 Aug 2020
Current
Potential
74
76
Property Type
Flat
Built Form
Semi-Detached
Constructed
1950-1966
+
Certificate History
2 Aug 2020
74
76
27 Feb 2009
73
81
Total Floor Area
63 sq m
Current CO2 Emissions Level
2.0
Potential CO2 Emissions Level
1.8
CO2 per sq m per Year
31
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
105 Heronswood Road
Date
13 Oct 2014
Current
Potential
67
74
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1950-1966
+
Certificate History
13 Oct 2014
67
74
Total Floor Area
60 sq m
Current CO2 Emissions Level
2.4
Potential CO2 Emissions Level
1.8
CO2 per sq m per Year
40
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
107 Heronswood Road
Date
22 Feb 2019
Current
Potential
77
80
Property Type
Flat
Built Form
Semi-Detached
Constructed
1950-1966
+
Certificate History
22 Feb 2019
77
80
18 Dec 2008
82
84
Total Floor Area
63 sq m
Current CO2 Emissions Level
1.6
Potential CO2 Emissions Level
1.3
CO2 per sq m per Year
25
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
111 Heronswood Road
Date
11 Apr 2010
Current
Potential
76
81
Property Type
Flat
Built Form
End-Terrace
Constructed
1950-1966
+
Certificate History
11 Apr 2010
76
81
Total Floor Area
56 sq m
Current CO2 Emissions Level
2.0
Potential CO2 Emissions Level
1.7
CO2 per sq m per Year
35
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
115 Heronswood Road
Date
2 Nov 2022
Current
Potential
65
78
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1950-1966
+
Certificate History
2 Nov 2022
65
78
Total Floor Area
57 sq m
Current CO2 Emissions Level
2.7
Potential CO2 Emissions Level
1.4
CO2 per sq m per Year
47
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
117 Heronswood Road
Date
9 Jan 2013
Current
Potential
66
75
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1950-1966
+
Certificate History
9 Jan 2013
66
75
Total Floor Area
59 sq m
Current CO2 Emissions Level
2.5
Potential CO2 Emissions Level
1.7
CO2 per sq m per Year
43
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
121 Heronswood Road
Date
13 Mar 2014
Current
Potential
74
78
Property Type
Flat
Built Form
End-Terrace
Constructed
1950-1966
+
Certificate History
13 Mar 2014
74
78
Total Floor Area
63 sq m
Current CO2 Emissions Level
1.8
Potential CO2 Emissions Level
1.4
CO2 per sq m per Year
29
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
123 Heronswood Road
Date
4 Feb 2014
Current
Potential
75
78
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1950-1966
+
Certificate History
4 Feb 2014
75
78
Total Floor Area
61 sq m
Current CO2 Emissions Level
1.7
Potential CO2 Emissions Level
1.4
CO2 per sq m per Year
28
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
125 Heronswood Road
Date
31 May 2023
Current
Potential
74
77
Property Type
Flat
Built Form
End-Terrace
Constructed
1950-1966
+
Certificate History
31 May 2023
74
77
Total Floor Area
58 sq m
Current CO2 Emissions Level
1.9
Potential CO2 Emissions Level
1.6
CO2 per sq m per Year
32
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
79 Heronswood Road
Date
15 Jul 2015
Current
Potential
66
78
Property Type
Flat
Built Form
End-Terrace
Constructed
1930-1949
+
Certificate History
15 Jul 2015
66
78
Total Floor Area
63 sq m
Current CO2 Emissions Level
2.9
Potential CO2 Emissions Level
1.5
CO2 per sq m per Year
46
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
81 Heronswood Road
Date
28 Jun 2017
Current
Potential
65
79
Property Type
Flat
Built Form
End-Terrace
Constructed
1950-1966
+
Certificate History
28 Jun 2017
65
79
3 Apr 2013
66
79
Total Floor Area
60 sq m
Current CO2 Emissions Level
2.8
Potential CO2 Emissions Level
1.4
CO2 per sq m per Year
48
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
83 Heronswood Road
Date
12 Sep 2022
Current
Potential
74
77
Property Type
Flat
Built Form
Semi-Detached
Constructed
1950-1966
+
Certificate History
12 Sep 2022
74
77
Total Floor Area
63 sq m
Current CO2 Emissions Level
2.0
Potential CO2 Emissions Level
1.6
CO2 per sq m per Year
32
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
87 Heronswood Road
Date
29 Dec 2022
Current
Potential
77
77
Property Type
Flat
Built Form
Enclosed End-Terrace
Constructed
1983-1990
+
Certificate History
29 Dec 2022
77
77
5 Dec 2012
62
65
Total Floor Area
67 sq m
Current CO2 Emissions Level
1.8
Potential CO2 Emissions Level
1.8
CO2 per sq m per Year
27
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
99 Heronswood Road
Date
28 Aug 2012
Current
Potential
74
76
Property Type
Flat
Built Form
End-Terrace
Constructed
1950-1966
+
Certificate History
28 Aug 2012
74
76
Total Floor Area
63 sq m
Current CO2 Emissions Level
1.7
Potential CO2 Emissions Level
1.6
CO2 per sq m per Year
27
Mains Gas Available
Yes
Habitable Rooms
3
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.