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PROPERTY ENERGY EFFICIENCY CERTIFICATE DETAILS
Washington Avenue, HEMEL HEMPSTEAD, HP2 6AT

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 Washington Avenue, HP2 6AT 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 Washington Avenue, HEMEL HEMPSTEAD, HP2 6AT
Period Covered: 2008 - 31 October 2024

Address
Inspection Date
Current
Potential
Property Type
Built Form
Constructed
Address
123 Washington Avenue
Date
9 Oct 2014
Current
Potential
54
57
Property Type
Flat
Built Form
End-Terrace
Constructed
1950-1966
+
Certificate History
9 Oct 2014
54
57
Total Floor Area
75 sq m
Current CO2 Emissions Level
4.2
Potential CO2 Emissions Level
4.0
CO2 per sq m per Year
57
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
1
Address
125 Washington Avenue
Date
13 Oct 2022
Current
Potential
49
69
Property Type
House
Built Form
Mid-Terrace
Constructed
1950-1966
+
Certificate History
13 Oct 2022
49
69
Total Floor Area
88 sq m
Current CO2 Emissions Level
6.0
Potential CO2 Emissions Level
3.9
CO2 per sq m per Year
68
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
1
Address
127 Washington Avenue
Date
24 Feb 2023
Current
Potential
72
85
Property Type
House
Built Form
Mid-Terrace
Constructed
1967-1975
+
Certificate History
24 Feb 2023
72
85
Total Floor Area
92 sq m
Current CO2 Emissions Level
2.9
Potential CO2 Emissions Level
1.5
CO2 per sq m per Year
32
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
1
Address
129 Washington Avenue
Date
17 Apr 2013
Current
Potential
71
84
Property Type
House
Built Form
Mid-Terrace
Constructed
1967-1975
+
Certificate History
17 Apr 2013
71
84
Total Floor Area
90 sq m
Current CO2 Emissions Level
2.8
Potential CO2 Emissions Level
1.4
CO2 per sq m per Year
31
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
1
Address
131 Washington Avenue
Date
23 Sep 2015
Current
Potential
64
82
Property Type
House
Built Form
End-Terrace
Constructed
1950-1966
+
Certificate History
23 Sep 2015
64
82
Total Floor Area
87 sq m
Current CO2 Emissions Level
4.0
Potential CO2 Emissions Level
1.9
CO2 per sq m per Year
46
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
137 Washington Avenue
Date
22 Mar 2016
Current
Potential
49
83
Property Type
House
Built Form
Mid-Terrace
Constructed
1950-1966
+
Certificate History
22 Mar 2016
49
83
Total Floor Area
95 sq m
Current CO2 Emissions Level
6.3
Potential CO2 Emissions Level
1.9
CO2 per sq m per Year
67
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
1
Address
139 Washington Avenue
Date
20 Oct 2022
Current
Potential
67
84
Property Type
House
Built Form
Mid-Terrace
Constructed
1967-1975
+
Certificate History
20 Oct 2022
67
84
Total Floor Area
107 sq m
Current CO2 Emissions Level
4.2
Potential CO2 Emissions Level
2.0
CO2 per sq m per Year
40
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
1
Address
141 Washington Avenue
Date
13 Feb 2018
Current
Potential
72
84
Property Type
House
Built Form
Mid-Terrace
Constructed
1967-1975
+
Certificate History
13 Feb 2018
72
84
Total Floor Area
104 sq m
Current CO2 Emissions Level
3.3
Potential CO2 Emissions Level
2.0
CO2 per sq m per Year
32
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
143 Washington Avenue
Date
13 Oct 2014
Current
Potential
52
83
Property Type
House
Built Form
Mid-Terrace
Constructed
1976-1982
+
Certificate History
13 Oct 2014
52
83
Total Floor Area
121 sq m
Current CO2 Emissions Level
6.2
Potential CO2 Emissions Level
1.9
CO2 per sq m per Year
52
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
1
Address
145 Washington Avenue
Date
23 May 2023
Current
Potential
66
83
Property Type
House
Built Form
End-Terrace
Constructed
1950-1966
+
Certificate History
23 May 2023
66
83
Total Floor Area
93 sq m
Current CO2 Emissions Level
4.0
Potential CO2 Emissions Level
1.9
CO2 per sq m per Year
43
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
147 Washington Avenue
Date
10 Oct 2011
Current
Potential
68
70
Property Type
House
Built Form
End-Terrace
Constructed
1967-1975
+
Certificate History
10 Oct 2011
68
70
Total Floor Area
82 sq m
Current CO2 Emissions Level
3.0
Potential CO2 Emissions Level
2.8
CO2 per sq m per Year
36
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
149 Washington Avenue
Date
28 Aug 2015
Current
Potential
73
87
Property Type
House
Built Form
Mid-Terrace
Constructed
1967-1975
+
Certificate History
28 Aug 2015
73
87
Total Floor Area
91 sq m
Current CO2 Emissions Level
2.9
Potential CO2 Emissions Level
1.4
CO2 per sq m per Year
32
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
1
Address
151 Washington Avenue
Date
11 Nov 2015
Current
Potential
69
82
Property Type
House
Built Form
Mid-Terrace
Constructed
1950-1966
+
Certificate History
11 Nov 2015
69
82
Total Floor Area
92 sq m
Current CO2 Emissions Level
3.4
Potential CO2 Emissions Level
2.2
CO2 per sq m per Year
37
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
1
Address
155 Washington Avenue
Date
22 Sep 2013
Current
Potential
66
84
Property Type
House
Built Form
Mid-Terrace
Constructed
1967-1975
+
Certificate History
22 Sep 2013
66
84
Total Floor Area
92 sq m
Current CO2 Emissions Level
3.5
Potential CO2 Emissions Level
1.4
CO2 per sq m per Year
38
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
1
Address
157 Washington Avenue
Date
26 Nov 2021
Current
Potential
73
87
Property Type
House
Built Form
Mid-Terrace
Constructed
1967-1975
+
Certificate History
26 Nov 2021
73
87
7 Oct 2011
67
75
Total Floor Area
91 sq m
Current CO2 Emissions Level
2.8
Potential CO2 Emissions Level
1.3
CO2 per sq m per Year
31
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
1
Address
161 Washington Avenue
Date
9 Jul 2019
Current
Potential
73
86
Property Type
House
Built Form
End-Terrace
Constructed
1967-1975
+
Certificate History
9 Jul 2019
73
86
2 Feb 2012
69
70
Total Floor Area
93 sq m
Current CO2 Emissions Level
3.0
Potential CO2 Emissions Level
1.6
CO2 per sq m per Year
32
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
1
Address
163 Washington Avenue
Date
24 Jun 2015
Current
Potential
45
82
Property Type
House
Built Form
Mid-Terrace
Constructed
1930-1949
+
Certificate History
24 Jun 2015
45
82
Total Floor Area
120 sq m
Current CO2 Emissions Level
8.3
Potential CO2 Emissions Level
2.6
CO2 per sq m per Year
69
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
167 Washington Avenue
Date
30 Oct 2017
Current
Potential
77
88
Property Type
House
Built Form
Mid-Terrace
Constructed
1976-1982
+
Certificate History
30 Oct 2017
77
88
4 Sep 2016
46
75
Total Floor Area
93 sq m
Current CO2 Emissions Level
2.3
Potential CO2 Emissions Level
1.2
CO2 per sq m per Year
25
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
1
Address
171 Washington Avenue
Date
7 Feb 2019
Current
Potential
72
89
Property Type
House
Built Form
Mid-Terrace
Constructed
1976-1982
+
Certificate History
7 Feb 2019
72
89
Total Floor Area
103 sq m
Current CO2 Emissions Level
3.3
Potential CO2 Emissions Level
1.1
CO2 per sq m per Year
32
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.