PROPERTY ENERGY EFFICIENCY CERTIFICATE DETAILS
Harwood Hill, WELWYN GARDEN CITY, AL8 7AP

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 Harwood Hill, AL8 7AP 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 Harwood Hill, WELWYN GARDEN CITY, AL8 7AP
Period Covered: 2008 - 31 October 2024

Address
Inspection Date
Current
Potential
Property Type
Built Form
Constructed
Address
10 Harwood Hill
Date
14 Apr 2011
Current
Potential
59
72
Property Type
House
Built Form
Semi-Detached
Constructed
1950-1966
+
Certificate History
14 Apr 2011
59
72
Total Floor Area
75 sq m
Current CO2 Emissions Level
3.9
Potential CO2 Emissions Level
2.6
CO2 per sq m per Year
52
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
10a Harwood Hill
Date
6 Oct 2015
Current
Potential
83
96
Property Type
Bungalow
Built Form
N/A
Constructed
N/A
+
Certificate History
6 Oct 2015
83
96
Total Floor Area
64 sq m
Current CO2 Emissions Level
1.1
Potential CO2 Emissions Level
-0.1
CO2 per sq m per Year
17
Mains Gas Available
No
Habitable Rooms
0
Number of Extensions
0
Address
10b Harwood Hill
Date
6 Oct 2015
Current
Potential
83
97
Property Type
Bungalow
Built Form
N/A
Constructed
N/A
+
Certificate History
6 Oct 2015
83
97
Total Floor Area
64 sq m
Current CO2 Emissions Level
1.0
Potential CO2 Emissions Level
-0.1
CO2 per sq m per Year
16
Mains Gas Available
No
Habitable Rooms
0
Number of Extensions
0
Address
10c Harwood Hill
Date
20 Jul 2016
Current
Potential
83
97
Property Type
Bungalow
Built Form
N/A
Constructed
N/A
+
Certificate History
20 Jul 2016
83
97
Total Floor Area
64 sq m
Current CO2 Emissions Level
1.1
Potential CO2 Emissions Level
-0.1
CO2 per sq m per Year
17
Mains Gas Available
No
Habitable Rooms
0
Number of Extensions
0
Address
12 Harwood Hill
Date
21 Dec 2017
Current
Potential
65
79
Property Type
House
Built Form
End-Terrace
Constructed
1950-1966
+
Certificate History
21 Dec 2017
65
79
21 Apr 2016
48
83
16 Feb 2016
57
87
27 May 2015
17
83
Total Floor Area
75 sq m
Current CO2 Emissions Level
3.4
Potential CO2 Emissions Level
1.9
CO2 per sq m per Year
45
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
1
Address
20 Harwood Hill
Date
3 Mar 2014
Current
Potential
67
85
Property Type
House
Built Form
Semi-Detached
Constructed
1950-1966
+
Certificate History
3 Mar 2014
67
85
Total Floor Area
115 sq m
Current CO2 Emissions Level
4.1
Potential CO2 Emissions Level
1.7
CO2 per sq m per Year
36
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
1
Address
22 Harwood Hill
Date
25 Feb 2016
Current
Potential
74
85
Property Type
House
Built Form
Semi-Detached
Constructed
1950-1966
+
Certificate History
25 Feb 2016
74
85
Total Floor Area
119 sq m
Current CO2 Emissions Level
3.3
Potential CO2 Emissions Level
2.0
CO2 per sq m per Year
28
Mains Gas Available
Yes
Habitable Rooms
7
Number of Extensions
2
Address
24 Harwood Hill
Date
1 Aug 2017
Current
Potential
69
75
Property Type
Flat
Built Form
End-Terrace
Constructed
1950-1966
+
Certificate History
1 Aug 2017
69
75
26 Apr 2009
59
76
Total Floor Area
39 sq m
Current CO2 Emissions Level
1.7
Potential CO2 Emissions Level
1.3
CO2 per sq m per Year
45
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
28 Harwood Hill
Date
22 Jun 2017
Current
Potential
74
76
Property Type
Flat
Built Form
Detached
Constructed
1950-1966
+
Certificate History
22 Jun 2017
74
76
Total Floor Area
37 sq m
Current CO2 Emissions Level
1.4
Potential CO2 Emissions Level
1.2
CO2 per sq m per Year
37
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
30 Harwood Hill
Date
16 Feb 2011
Current
Potential
81
83
Property Type
Flat
Built Form
N/A
Constructed
1950-1966
+
Certificate History
16 Feb 2011
81
83
Total Floor Area
37 sq m
Current CO2 Emissions Level
1.3
Potential CO2 Emissions Level
1.2
CO2 per sq m per Year
36
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
32 Harwood Hill
Date
7 Jul 2022
Current
Potential
73
77
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1950-1966
+
Certificate History
7 Jul 2022
73
77
Total Floor Area
37 sq m
Current CO2 Emissions Level
1.4
Potential CO2 Emissions Level
1.1
CO2 per sq m per Year
39
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
34 Harwood Hill
Date
25 Mar 2023
Current
Potential
71
75
Property Type
Flat
Built Form
Detached
Constructed
1950-1966
+
Certificate History
25 Mar 2023
71
75
28 Jun 2015
72
76
Total Floor Area
38 sq m
Current CO2 Emissions Level
1.7
Potential CO2 Emissions Level
1.3
CO2 per sq m per Year
44
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
36 Harwood Hill
Date
22 Dec 2010
Current
Potential
80
83
Property Type
Flat
Built Form
N/A
Constructed
1950-1966
+
Certificate History
22 Dec 2010
80
83
Total Floor Area
38 sq m
Current CO2 Emissions Level
1.3
Potential CO2 Emissions Level
1.2
CO2 per sq m per Year
35
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
38 Harwood Hill
Date
22 Sep 2010
Current
Potential
80
82
Property Type
Flat
Built Form
N/A
Constructed
1950-1966
+
Certificate History
22 Sep 2010
80
82
Total Floor Area
37 sq m
Current CO2 Emissions Level
1.3
Potential CO2 Emissions Level
1.2
CO2 per sq m per Year
36
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
4 Harwood Hill
Date
11 Oct 2016
Current
Potential
71
88
Property Type
House
Built Form
Mid-Terrace
Constructed
1950-1966
+
Certificate History
11 Oct 2016
71
88
18 Aug 2016
62
85
Total Floor Area
74 sq m
Current CO2 Emissions Level
2.6
Potential CO2 Emissions Level
1.0
CO2 per sq m per Year
35
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
40 Harwood Hill
Date
31 Oct 2019
Current
Potential
68
75
Property Type
Flat
Built Form
Semi-Detached
Constructed
1950-1966
+
Certificate History
31 Oct 2019
68
75
Total Floor Area
39 sq m
Current CO2 Emissions Level
1.9
Potential CO2 Emissions Level
1.3
CO2 per sq m per Year
48
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
42 Harwood Hill
Date
25 Nov 2015
Current
Potential
72
77
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1950-1966
+
Certificate History
25 Nov 2015
72
77
Total Floor Area
37 sq m
Current CO2 Emissions Level
1.5
Potential CO2 Emissions Level
1.1
CO2 per sq m per Year
41
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
44 Harwood Hill
Date
3 Jul 2023
Current
Potential
72
75
Property Type
Flat
Built Form
Detached
Constructed
1950-1966
+
Certificate History
3 Jul 2023
72
75
10 May 2010
75
80
Total Floor Area
37 sq m
Current CO2 Emissions Level
1.6
Potential CO2 Emissions Level
1.3
CO2 per sq m per Year
42
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
46 Harwood Hill
Date
30 Sep 2008
Current
Potential
81
82
Property Type
Flat
Built Form
End-Terrace
Constructed
1950-1966
+
Certificate History
30 Sep 2008
81
82
Total Floor Area
37 sq m
Current CO2 Emissions Level
1.3
Potential CO2 Emissions Level
1.2
CO2 per sq m per Year
34
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
48 Harwood Hill
Date
6 Oct 2009
Current
Potential
70
79
Property Type
Flat
Built Form
End-Terrace
Constructed
1950-1966
+
Certificate History
6 Oct 2009
70
79
Total Floor Area
37 sq m
Current CO2 Emissions Level
2.1
Potential CO2 Emissions Level
1.4
CO2 per sq m per Year
55
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
50 Harwood Hill
Date
4 Oct 2018
Current
Potential
61
73
Property Type
Flat
Built Form
End-Terrace
Constructed
1950-1966
+
Certificate History
4 Oct 2018
61
73
Total Floor Area
37 sq m
Current CO2 Emissions Level
2.4
Potential CO2 Emissions Level
1.4
CO2 per sq m per Year
64
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
54 Harwood Hill
Date
12 Nov 2010
Current
Potential
75
80
Property Type
Flat
Built Form
N/A
Constructed
1950-1966
+
Certificate History
12 Nov 2010
75
80
Total Floor Area
37 sq m
Current CO2 Emissions Level
1.7
Potential CO2 Emissions Level
1.4
CO2 per sq m per Year
44
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
56 Harwood Hill
Date
18 Feb 2019
Current
Potential
71
83
Property Type
House
Built Form
Semi-Detached
Constructed
1950-1966
+
Certificate History
18 Feb 2019
71
83
26 Mar 2013
65
85
29 May 2012
49
73
Total Floor Area
119 sq m
Current CO2 Emissions Level
3.9
Potential CO2 Emissions Level
2.3
CO2 per sq m per Year
33
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
1
Address
6 Harwood Hill
Date
8 Sep 2009
Current
Potential
71
76
Property Type
House
Built Form
Mid-Terrace
Constructed
1950-1966
+
Certificate History
8 Sep 2009
71
76
Total Floor Area
70 sq m
Current CO2 Emissions Level
2.8
Potential CO2 Emissions Level
2.3
CO2 per sq m per Year
40
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
64 Harwood Hill
Date
24 Apr 2018
Current
Potential
74
77
Property Type
Flat
Built Form
End-Terrace
Constructed
1967-1975
+
Certificate History
24 Apr 2018
74
77
Total Floor Area
63 sq m
Current CO2 Emissions Level
2.0
Potential CO2 Emissions Level
1.7
CO2 per sq m per Year
32
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
66 Harwood Hill
Date
18 Feb 2015
Current
Potential
76
79
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1950-1966
+
Certificate History
18 Feb 2015
76
79
Total Floor Area
63 sq m
Current CO2 Emissions Level
1.8
Potential CO2 Emissions Level
1.5
CO2 per sq m per Year
28
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
68 Harwood Hill
Date
27 Sep 2023
Current
Potential
82
82
Property Type
Flat
Built Form
End-Terrace
Constructed
1950-1966
+
Certificate History
27 Sep 2023
82
82
14 Nov 2012
76
78
Total Floor Area
62 sq m
Current CO2 Emissions Level
1.2
Potential CO2 Emissions Level
1.2
CO2 per sq m per Year
19
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
70 Harwood Hill
Date
9 Jun 2009
Current
Potential
46
66
Property Type
Flat
Built Form
Detached
Constructed
1950-1966
+
Certificate History
9 Jun 2009
46
66
Total Floor Area
64 sq m
Current CO2 Emissions Level
5.2
Potential CO2 Emissions Level
3.3
CO2 per sq m per Year
81
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 2024.