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PROPERTY ENERGY EFFICIENCY CERTIFICATE DETAILS
King Street, ONGAR, CM5 9NS

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 King Street, CM5 9NS 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 King Street, ONGAR, CM5 9NS
Period Covered: 2008 - 31 January 2025

Address
Inspection Date
Current
Potential
Property Type
Built Form
Constructed
Address
1 King Street
Date
19 Jul 2017
Current
Potential
71
114
Property Type
House
Built Form
Semi-Detached
Constructed
1930-1949
+
Certificate History
19 Jul 2017
71
114
16 May 2017
46
103
Total Floor Area
70 sq m
Current CO2 Emissions Level
2.5
Potential CO2 Emissions Level
-1.0
CO2 per sq m per Year
36
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
1
Address
10 King Street
Date
8 Jan 2020
Current
Potential
29
101
Property Type
House
Built Form
Semi-Detached
Constructed
1950-1966
+
Certificate History
8 Jan 2020
29
101
Total Floor Area
65 sq m
Current CO2 Emissions Level
6.3
Potential CO2 Emissions Level
0.2
CO2 per sq m per Year
97
Mains Gas Available
No
Habitable Rooms
4
Number of Extensions
0
Address
11 King Street
Date
1 Apr 2019
Current
Potential
61
83
Property Type
House
Built Form
Semi-Detached
Constructed
1930-1949
+
Certificate History
1 Apr 2019
61
83
Total Floor Area
67 sq m
Current CO2 Emissions Level
3.2
Potential CO2 Emissions Level
1.2
CO2 per sq m per Year
48
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
12 King Street
Date
12 Jun 2017
Current
Potential
53
110
Property Type
House
Built Form
Semi-Detached
Constructed
1950-1966
+
Certificate History
12 Jun 2017
53
110
Total Floor Area
84 sq m
Current CO2 Emissions Level
5.2
Potential CO2 Emissions Level
-0.9
CO2 per sq m per Year
62
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
2
Address
13 King Street
Date
9 Aug 2015
Current
Potential
61
89
Property Type
House
Built Form
Semi-Detached
Constructed
1900-1929
+
Certificate History
9 Aug 2015
61
89
Total Floor Area
65 sq m
Current CO2 Emissions Level
4.8
Potential CO2 Emissions Level
2.0
CO2 per sq m per Year
74
Mains Gas Available
No
Habitable Rooms
4
Number of Extensions
0
Address
15 King Street
Date
14 Feb 2023
Current
Potential
68
106
Property Type
House
Built Form
Semi-Detached
Constructed
1950-1966
+
Certificate History
14 Feb 2023
68
106
Total Floor Area
85 sq m
Current CO2 Emissions Level
3.3
Potential CO2 Emissions Level
-0.4
CO2 per sq m per Year
39
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
1
Address
16 King Street
Date
18 Jan 2018
Current
Potential
51
104
Property Type
House
Built Form
Semi-Detached
Constructed
1930-1949
+
Certificate History
18 Jan 2018
51
104
14 Apr 2014
69
92
Total Floor Area
68 sq m
Current CO2 Emissions Level
4.7
Potential CO2 Emissions Level
0.0
CO2 per sq m per Year
69
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
2 King Street
Date
26 Oct 2022
Current
Potential
44
96
Property Type
House
Built Form
Semi-Detached
Constructed
1930-1949
+
Certificate History
26 Oct 2022
44
96
30 May 2012
56
84
Total Floor Area
94 sq m
Current CO2 Emissions Level
6.2
Potential CO2 Emissions Level
0.7
CO2 per sq m per Year
66
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
2
Address
3 King Street
Date
23 Sep 2019
Current
Potential
48
81
Property Type
House
Built Form
Semi-Detached
Constructed
1930-1949
+
Certificate History
23 Sep 2019
48
81
Total Floor Area
76 sq m
Current CO2 Emissions Level
5.5
Potential CO2 Emissions Level
1.8
CO2 per sq m per Year
73
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
3
Address
4 King Street
Date
27 Oct 2009
Current
Potential
56
58
Property Type
House
Built Form
Semi-Detached
Constructed
N/A
+
Certificate History
27 Oct 2009
56
58
Total Floor Area
77 sq m
Current CO2 Emissions Level
3.6
Potential CO2 Emissions Level
3.5
CO2 per sq m per Year
47
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
1
Address
6 King Street
Date
20 Oct 2015
Current
Potential
52
107
Property Type
House
Built Form
Semi-Detached
Constructed
1930-1949
+
Certificate History
20 Oct 2015
52
107
Total Floor Area
77 sq m
Current CO2 Emissions Level
4.6
Potential CO2 Emissions Level
-0.6
CO2 per sq m per Year
60
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
1
Address
Elmfield, King Street
Date
4 Jun 2009
Current
Potential
40
56
Property Type
Bungalow
Built Form
Detached
Constructed
1950-1966
+
Certificate History
4 Jun 2009
40
56
Total Floor Area
269 sq m
Current CO2 Emissions Level
13.0
Potential CO2 Emissions Level
8.8
CO2 per sq m per Year
53
Mains Gas Available
Yes
Habitable Rooms
8
Number of Extensions
2
Address
Greenacre House, King Street
Date
2 Mar 2022
Current
Potential
85
92
Property Type
House
Built Form
Detached
Constructed
2022
+
Certificate History
2 Mar 2022
85
92
16 Jan 2020
85
93
Total Floor Area
173 sq m
Current CO2 Emissions Level
2.4
Potential CO2 Emissions Level
1.1
CO2 per sq m per Year
14
Mains Gas Available
No
Habitable Rooms
0
Number of Extensions
0
Address
Greenview House, King Street
Date
2 Mar 2022
Current
Potential
84
91
Property Type
House
Built Form
Detached
Constructed
2022
+
Certificate History
2 Mar 2022
84
91
16 Jan 2020
86
93
Total Floor Area
175 sq m
Current CO2 Emissions Level
2.6
Potential CO2 Emissions Level
1.4
CO2 per sq m per Year
15
Mains Gas Available
No
Habitable Rooms
0
Number of Extensions
0
Address
Little Whitgate Cottage, King Street
Date
4 Sep 2024
Current
Potential
66
82
Property Type
House
Built Form
Detached
Constructed
before 1900
+
Certificate History
4 Sep 2024
66
82
Total Floor Area
229 sq m
Current CO2 Emissions Level
7.4
Potential CO2 Emissions Level
3.7
CO2 per sq m per Year
33
Mains Gas Available
Yes
Habitable Rooms
8
Number of Extensions
0
Address
Sunnydene, King Street
Date
5 Oct 2008
Current
Potential
41
63
Property Type
House
Built Form
Detached
Constructed
1967-1975
+
Certificate History
5 Oct 2008
41
63
Total Floor Area
110 sq m
Current CO2 Emissions Level
12.0
Potential CO2 Emissions Level
7.3
CO2 per sq m per Year
72
Mains Gas Available
No
Habitable Rooms
8
Number of Extensions
1
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.