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PROPERTY ENERGY EFFICIENCY CERTIFICATE DETAILS
Windmill Road, HEMEL HEMPSTEAD, HP2 4BP

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 Windmill Road, HP2 4BP 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 Windmill Road, HEMEL HEMPSTEAD, HP2 4BP
Period Covered: 2008 - 31 January 2025

Address
Inspection Date
Current
Potential
Property Type
Built Form
Constructed
Address
103 Windmill Road
Date
18 Sep 2011
Current
Potential
66
71
Property Type
House
Built Form
Mid-Terrace
Constructed
1950-1966
+
Certificate History
18 Sep 2011
66
71
Total Floor Area
85 sq m
Current CO2 Emissions Level
3.4
Potential CO2 Emissions Level
2.8
CO2 per sq m per Year
40
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
1
Address
109 Windmill Road
Date
17 Oct 2021
Current
Potential
67
86
Property Type
House
Built Form
Mid-Terrace
Constructed
1950-1966
+
Certificate History
17 Oct 2021
67
86
11 Feb 2011
65
79
Total Floor Area
103 sq m
Current CO2 Emissions Level
4.1
Potential CO2 Emissions Level
1.6
CO2 per sq m per Year
40
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
111 Windmill Road
Date
20 Aug 2020
Current
Potential
72
86
Property Type
House
Built Form
Mid-Terrace
Constructed
1967-1975
+
Certificate History
20 Aug 2020
72
86
2 Apr 2009
64
74
Total Floor Area
63 sq m
Current CO2 Emissions Level
2.3
Potential CO2 Emissions Level
1.2
CO2 per sq m per Year
37
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
111a Windmill Road
Date
9 Sep 2021
Current
Potential
55
74
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1950-1966
+
Certificate History
9 Sep 2021
55
74
15 Aug 2011
68
68
Total Floor Area
18 sq m
Current CO2 Emissions Level
1.9
Potential CO2 Emissions Level
1.4
CO2 per sq m per Year
105
Mains Gas Available
No
Habitable Rooms
1
Number of Extensions
0
Address
113 Windmill Road
Date
25 Feb 2015
Current
Potential
65
84
Property Type
House
Built Form
Semi-Detached
Constructed
1930-1949
+
Certificate History
25 Feb 2015
65
84
Total Floor Area
59 sq m
Current CO2 Emissions Level
2.8
Potential CO2 Emissions Level
1.1
CO2 per sq m per Year
49
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
113a Windmill Road
Date
24 May 2021
Current
Potential
82
95
Property Type
House
Built Form
End-Terrace
Constructed
2021
+
Certificate History
24 May 2021
82
95
Total Floor Area
70 sq m
Current CO2 Emissions Level
1.3
Potential CO2 Emissions Level
0.1
CO2 per sq m per Year
18
Mains Gas Available
No
Habitable Rooms
0
Number of Extensions
0
Address
142 Windmill Road
Date
7 May 2024
Current
Potential
73
77
Property Type
Flat
Built Form
Detached
Constructed
1950-1966
+
Certificate History
7 May 2024
73
77
2 Feb 2023
71
76
23 Nov 2011
68
73
7 Mar 2011
73
78
Total Floor Area
62 sq m
Current CO2 Emissions Level
2.2
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
144 Windmill Road
Date
10 Dec 2014
Current
Potential
70
80
Property Type
Flat
Built Form
Detached
Constructed
1950-1966
+
Certificate History
10 Dec 2014
70
80
Total Floor Area
62 sq m
Current CO2 Emissions Level
2.5
Potential CO2 Emissions Level
1.4
CO2 per sq m per Year
40
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
148 Windmill Road
Date
8 May 2024
Current
Potential
72
77
Property Type
Flat
Built Form
Detached
Constructed
1950-1966
+
Certificate History
8 May 2024
72
77
23 Sep 2011
66
74
Total Floor Area
61 sq m
Current CO2 Emissions Level
2.2
Potential CO2 Emissions Level
1.7
CO2 per sq m per Year
36
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
150 Windmill Road
Date
27 Apr 2022
Current
Potential
77
78
Property Type
Flat
Built Form
Semi-Detached
Constructed
1950-1966
+
Certificate History
27 Apr 2022
77
78
19 Sep 2011
75
78
Total Floor Area
69 sq m
Current CO2 Emissions Level
1.8
Potential CO2 Emissions Level
1.7
CO2 per sq m per Year
26
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
152 Windmill Road
Date
5 Sep 2012
Current
Potential
77
78
Property Type
Flat
Built Form
End-Terrace
Constructed
1950-1966
+
Certificate History
5 Sep 2012
77
78
Total Floor Area
70 sq m
Current CO2 Emissions Level
1.7
Potential CO2 Emissions Level
1.6
CO2 per sq m per Year
24
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
160 Windmill Road
Date
6 Jul 2020
Current
Potential
70
75
Property Type
Flat
Built Form
Detached
Constructed
1950-1966
+
Certificate History
6 Jul 2020
70
75
23 Nov 2011
65
70
Total Floor Area
63 sq m
Current CO2 Emissions Level
2.4
Potential CO2 Emissions Level
1.9
CO2 per sq m per Year
38
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
162 Windmill Road
Date
14 Sep 2011
Current
Potential
77
79
Property Type
Flat
Built Form
Detached
Constructed
1950-1966
+
Certificate History
14 Sep 2011
77
79
Total Floor Area
70 sq m
Current CO2 Emissions Level
1.8
Potential CO2 Emissions Level
1.5
CO2 per sq m per Year
26
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
164 WINDMILL ROAD
Date
3 Aug 2021
Current
Potential
74
77
Property Type
Flat
Built Form
Semi-Detached
Constructed
1950-1966
+
Certificate History
3 Aug 2021
74
77
Total Floor Area
69 sq m
Current CO2 Emissions Level
2.2
Potential CO2 Emissions Level
1.9
CO2 per sq m per Year
32
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
164 Windmill Road
Date
18 Sep 2011
Current
Potential
72
76
Property Type
Flat
Built Form
Detached
Constructed
1950-1966
+
Certificate History
18 Sep 2011
72
76
Total Floor Area
69 sq m
Current CO2 Emissions Level
2.3
Potential CO2 Emissions Level
1.9
CO2 per sq m per Year
33
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
91 Windmill Road
Date
17 Feb 2012
Current
Potential
62
70
Property Type
House
Built Form
End-Terrace
Constructed
1950-1966
+
Certificate History
17 Feb 2012
62
70
Total Floor Area
102 sq m
Current CO2 Emissions Level
4.3
Potential CO2 Emissions Level
3.2
CO2 per sq m per Year
42
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
0
Address
99 Windmill Road
Date
14 Oct 2024
Current
Potential
70
85
Property Type
House
Built Form
End-Terrace
Constructed
1950-1966
+
Certificate History
14 Oct 2024
70
85
20 Sep 2011
64
70
Total Floor Area
71 sq m
Current CO2 Emissions Level
2.7
Potential CO2 Emissions Level
1.4
CO2 per sq m per Year
39
Mains Gas Available
Yes
Habitable Rooms
4
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.