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

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 3JH 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 3JH
Period Covered: 2008 - 31 October 2024

Address
Inspection Date
Current
Potential
Property Type
Built Form
Constructed
Address
183 Heronswood Road
Date
16 Apr 2015
Current
Potential
66
86
Property Type
House
Built Form
End-Terrace
Constructed
1950-1966
+
Certificate History
16 Apr 2015
66
86
28 Jan 2014
54
80
10 Jan 2014
67
86
Total Floor Area
86 sq m
Current CO2 Emissions Level
3.6
Potential CO2 Emissions Level
1.3
CO2 per sq m per Year
42
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
187 Heronswood Road
Date
31 Mar 2009
Current
Potential
73
76
Property Type
House
Built Form
Mid-Terrace
Constructed
1950-1966
+
Certificate History
31 Mar 2009
73
76
Total Floor Area
70 sq m
Current CO2 Emissions Level
2.6
Potential CO2 Emissions Level
2.3
CO2 per sq m per Year
37
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
195 Heronswood Road
Date
29 May 2014
Current
Potential
58
86
Property Type
House
Built Form
Mid-Terrace
Constructed
1967-1975
+
Certificate History
29 May 2014
58
86
10 Mar 2014
57
86
Total Floor Area
111 sq m
Current CO2 Emissions Level
5.2
Potential CO2 Emissions Level
1.5
CO2 per sq m per Year
47
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
197 Heronswood Road
Date
9 Dec 2019
Current
Potential
67
86
Property Type
House
Built Form
Mid-Terrace
Constructed
1950-1966
+
Certificate History
9 Dec 2019
67
86
Total Floor Area
82 sq m
Current CO2 Emissions Level
3.4
Potential CO2 Emissions Level
1.3
CO2 per sq m per Year
41
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
1
Address
199 Heronswood Road
Date
22 Nov 2012
Current
Potential
64
87
Property Type
House
Built Form
Mid-Terrace
Constructed
1950-1966
+
Certificate History
22 Nov 2012
64
87
Total Floor Area
78 sq m
Current CO2 Emissions Level
3.3
Potential CO2 Emissions Level
0.9
CO2 per sq m per Year
43
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
205 Heronswood Road
Date
7 Oct 2013
Current
Potential
72
86
Property Type
House
Built Form
Semi-Detached
Constructed
1950-1966
+
Certificate History
7 Oct 2013
72
86
Total Floor Area
91 sq m
Current CO2 Emissions Level
2.7
Potential CO2 Emissions Level
1.2
CO2 per sq m per Year
30
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
213 Heronswood Road
Date
12 Jun 2022
Current
Potential
62
79
Property Type
House
Built Form
Mid-Terrace
Constructed
1950-1966
+
Certificate History
12 Jun 2022
62
79
Total Floor Area
80 sq m
Current CO2 Emissions Level
3.9
Potential CO2 Emissions Level
2.1
CO2 per sq m per Year
49
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
225 Heronswood Road
Date
22 Jul 2013
Current
Potential
65
83
Property Type
House
Built Form
End-Terrace
Constructed
1950-1966
+
Certificate History
22 Jul 2013
65
83
Total Floor Area
100 sq m
Current CO2 Emissions Level
3.9
Potential CO2 Emissions Level
1.8
CO2 per sq m per Year
39
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
227 Heronswood Road
Date
27 Feb 2012
Current
Potential
68
73
Property Type
House
Built Form
Mid-Terrace
Constructed
1950-1966
+
Certificate History
27 Feb 2012
68
73
Total Floor Area
100 sq m
Current CO2 Emissions Level
3.5
Potential CO2 Emissions Level
2.8
CO2 per sq m per Year
35
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
231 Heronswood Road
Date
9 Apr 2018
Current
Potential
69
83
Property Type
House
Built Form
Detached
Constructed
1967-1975
+
Certificate History
9 Apr 2018
69
83
12 Jun 2017
39
86
14 Jul 2011
64
69
Total Floor Area
84 sq m
Current CO2 Emissions Level
3.1
Potential CO2 Emissions Level
1.7
CO2 per sq m per Year
37
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
233 Heronswood Road
Date
18 Nov 2009
Current
Potential
65
75
Property Type
House
Built Form
End-Terrace
Constructed
1967-1975
+
Certificate History
18 Nov 2009
65
75
Total Floor Area
112 sq m
Current CO2 Emissions Level
4.7
Potential CO2 Emissions Level
3.3
CO2 per sq m per Year
42
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
0
Address
237 Heronswood Road
Date
8 Jun 2016
Current
Potential
71
83
Property Type
House
Built Form
Mid-Terrace
Constructed
1950-1966
+
Certificate History
8 Jun 2016
71
83
31 Jul 2013
60
86
Total Floor Area
98 sq m
Current CO2 Emissions Level
3.0
Potential CO2 Emissions Level
1.6
CO2 per sq m per Year
31
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
239 Heronswood Road
Date
19 Sep 2016
Current
Potential
56
85
Property Type
House
Built Form
Mid-Terrace
Constructed
1950-1966
+
Certificate History
19 Sep 2016
56
85
Total Floor Area
105 sq m
Current CO2 Emissions Level
5.6
Potential CO2 Emissions Level
1.7
CO2 per sq m per Year
53
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
243 Heronswood Road
Date
15 Sep 2013
Current
Potential
62
80
Property Type
House
Built Form
Mid-Terrace
Constructed
1950-1966
+
Certificate History
15 Sep 2013
62
80
Total Floor Area
108 sq m
Current CO2 Emissions Level
4.2
Potential CO2 Emissions Level
1.9
CO2 per sq m per Year
39
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
0
Address
245 Heronswood Road
Date
10 Apr 2022
Current
Potential
61
81
Property Type
House
Built Form
Mid-Terrace
Constructed
1950-1966
+
Certificate History
10 Apr 2022
61
81
Total Floor Area
91 sq m
Current CO2 Emissions Level
4.1
Potential CO2 Emissions Level
1.8
CO2 per sq m per Year
45
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
245 HERONSWOOD ROAD, WELWYN GARDEN CITY
Date
9 Dec 2020
Current
Potential
71
83
Property Type
House
Built Form
Mid-Terrace
Constructed
1967-1975
+
Certificate History
9 Dec 2020
71
83
Total Floor Area
77 sq m
Current CO2 Emissions Level
2.7
Potential CO2 Emissions Level
1.5
CO2 per sq m per Year
35
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
255 Heronswood Road
Date
24 Apr 2019
Current
Potential
70
83
Property Type
House
Built Form
End-Terrace
Constructed
1950-1966
+
Certificate History
24 Apr 2019
70
83
Total Floor Area
106 sq m
Current CO2 Emissions Level
3.5
Potential CO2 Emissions Level
2.0
CO2 per sq m per Year
33
Mains Gas Available
Yes
Habitable Rooms
6
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.