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PROPERTY ENERGY EFFICIENCY CERTIFICATE DETAILS
Grasmere Avenue, HARPENDEN, AL5 5PS

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 Grasmere Avenue, AL5 5PS 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 Grasmere Avenue, HARPENDEN, AL5 5PS
Period Covered: 2008 - 31 January 2025

Address
Inspection Date
Current
Potential
Property Type
Built Form
Constructed
Address
10 Grasmere Avenue
Date
12 Jan 2024
Current
Potential
75
80
Property Type
House
Built Form
Detached
Constructed
1983-1990
+
Certificate History
12 Jan 2024
75
80
Total Floor Area
286 sq m
Current CO2 Emissions Level
7.4
Potential CO2 Emissions Level
6.1
CO2 per sq m per Year
26
Mains Gas Available
Yes
Habitable Rooms
10
Number of Extensions
4
Address
12 Grasmere Avenue
Date
21 Jul 2022
Current
Potential
65
72
Property Type
House
Built Form
Detached
Constructed
1950-1966
+
Certificate History
21 Jul 2022
65
72
Total Floor Area
239 sq m
Current CO2 Emissions Level
9.1
Potential CO2 Emissions Level
7.7
CO2 per sq m per Year
38
Mains Gas Available
Yes
Habitable Rooms
9
Number of Extensions
2
Address
16 Grasmere Avenue
Date
2 Feb 2012
Current
Potential
45
65
Property Type
House
Built Form
Detached
Constructed
1950-1966
+
Certificate History
2 Feb 2012
45
65
Total Floor Area
137 sq m
Current CO2 Emissions Level
8.7
Potential CO2 Emissions Level
5.3
CO2 per sq m per Year
64
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
0
Address
18 Grasmere Avenue
Date
18 Jan 2011
Current
Potential
65
75
Property Type
House
Built Form
Detached
Constructed
1950-1966
+
Certificate History
18 Jan 2011
65
75
Total Floor Area
190 sq m
Current CO2 Emissions Level
6.9
Potential CO2 Emissions Level
5.0
CO2 per sq m per Year
36
Mains Gas Available
Yes
Habitable Rooms
7
Number of Extensions
2
Address
2 Grasmere Avenue
Date
25 Jul 2022
Current
Potential
59
81
Property Type
House
Built Form
Detached
Constructed
1950-1966
+
Certificate History
25 Jul 2022
59
81
Total Floor Area
155 sq m
Current CO2 Emissions Level
7.5
Potential CO2 Emissions Level
3.4
CO2 per sq m per Year
48
Mains Gas Available
Yes
Habitable Rooms
7
Number of Extensions
1
Address
24 Grasmere Avenue
Date
2 Mar 2022
Current
Potential
64
74
Property Type
House
Built Form
Detached
Constructed
1950-1966
+
Certificate History
2 Mar 2022
64
74
Total Floor Area
219 sq m
Current CO2 Emissions Level
8.7
Potential CO2 Emissions Level
6.5
CO2 per sq m per Year
40
Mains Gas Available
Yes
Habitable Rooms
10
Number of Extensions
4
Address
26 Grasmere Avenue
Date
12 Jun 2014
Current
Potential
30
78
Property Type
House
Built Form
Detached
Constructed
1950-1966
+
Certificate History
12 Jun 2014
30
78
Total Floor Area
145 sq m
Current CO2 Emissions Level
11.0
Potential CO2 Emissions Level
2.9
CO2 per sq m per Year
78
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
2
Address
28 Grasmere Avenue
Date
14 Mar 2022
Current
Potential
62
80
Property Type
House
Built Form
Detached
Constructed
1950-1966
+
Certificate History
14 Mar 2022
62
80
Total Floor Area
133 sq m
Current CO2 Emissions Level
5.9
Potential CO2 Emissions Level
3.2
CO2 per sq m per Year
45
Mains Gas Available
Yes
Habitable Rooms
8
Number of Extensions
2
Address
32 Grasmere Avenue
Date
25 Apr 2023
Current
Potential
80
84
Property Type
House
Built Form
Detached
Constructed
2007-2011
+
Certificate History
25 Apr 2023
80
84
11 Feb 2010
78
81
Total Floor Area
310 sq m
Current CO2 Emissions Level
6.0
Potential CO2 Emissions Level
5.1
CO2 per sq m per Year
20
Mains Gas Available
Yes
Habitable Rooms
11
Number of Extensions
0
Address
6 Grasmere Avenue
Date
31 Oct 2022
Current
Potential
32
75
Property Type
House
Built Form
Detached
Constructed
1930-1949
+
Certificate History
31 Oct 2022
32
75
Total Floor Area
103 sq m
Current CO2 Emissions Level
9.7
Potential CO2 Emissions Level
3.2
CO2 per sq m per Year
94
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.