PROPERTY ENERGY EFFICIENCY CERTIFICATE DETAILS
Hertford Road, LONDON, N9 7EL
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 Hertford Road, N9 7EL 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 Hertford Road, LONDON, N9 7EL
Period Covered:
2008 - 31 January 2025
Address
Inspection Date
Current
Potential
Property Type
Built Form
Constructed
Address
121 Hertford Road
Date
25 Jul 2012
Current
Potential
70
77
Property Type
Flat
Built Form
End-Terrace
Constructed
1976-1982
Certificate History
25 Jul 2012
70
77
Total Floor Area
48 sq m
Current CO2 Emissions Level
1.8
Potential CO2 Emissions Level
1.3
CO2 per sq m per Year
38
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
125 Hertford Road
Date
13 Aug 2019
Current
Potential
77
77
Property Type
Flat
Built Form
End-Terrace
Constructed
1983-1990
Certificate History
13 Aug 2019
77
77
Total Floor Area
39 sq m
Current CO2 Emissions Level
1.1
Potential CO2 Emissions Level
1.1
CO2 per sq m per Year
27
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
127 Hertford Road
Date
4 Sep 2022
Current
Potential
75
75
Property Type
Flat
Built Form
End-Terrace
Constructed
1983-1990
Certificate History
4 Sep 2022
75
75
Total Floor Area
43 sq m
Current CO2 Emissions Level
1.3
Potential CO2 Emissions Level
1.3
CO2 per sq m per Year
31
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
129 Hertford Road
Date
6 Sep 2021
Current
Potential
79
79
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1983-1990
Certificate History
6 Sep 2021
79
79
Total Floor Area
42 sq m
Current CO2 Emissions Level
1.0
Potential CO2 Emissions Level
1.0
CO2 per sq m per Year
23
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
129 Hertford st
Date
10 May 2021
Current
Potential
75
78
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1976-1982
Certificate History
10 May 2021
75
78
Total Floor Area
43 sq m
Current CO2 Emissions Level
1.3
Potential CO2 Emissions Level
1.1
CO2 per sq m per Year
30
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
137 Hertford Road
Date
30 Jul 2020
Current
Potential
64
70
Property Type
Flat
Built Form
End-Terrace
Constructed
1950-1966
Certificate History
30 Jul 2020
64
70
30 Sep 2009
66
75
Total Floor Area
41 sq m
Current CO2 Emissions Level
2.2
Potential CO2 Emissions Level
1.6
CO2 per sq m per Year
54
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
139 Hertford Road
Date
16 Aug 2024
Current
Potential
78
78
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1983-1990
Certificate History
16 Aug 2024
78
78
Total Floor Area
43 sq m
Current CO2 Emissions Level
1.0
Potential CO2 Emissions Level
1.0
CO2 per sq m per Year
24
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
141 Hertford Road
Date
6 Jun 2013
Current
Potential
61
76
Property Type
Flat
Built Form
Semi-Detached
Constructed
1967-1975
Certificate History
6 Jun 2013
61
76
Total Floor Area
42 sq m
Current CO2 Emissions Level
2.4
Potential CO2 Emissions Level
1.2
CO2 per sq m per Year
57
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
143b Hertford Road
Date
6 Feb 2023
Current
Potential
67
76
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1930-1949
Certificate History
6 Feb 2023
67
76
14 Feb 2013
65
77
Total Floor Area
52 sq m
Current CO2 Emissions Level
2.2
Potential CO2 Emissions Level
1.4
CO2 per sq m per Year
42
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
149 Hertford Road
Date
12 Aug 2018
Current
Potential
52
73
Property Type
House
Built Form
Mid-Terrace
Constructed
before 1900
Certificate History
12 Aug 2018
52
73
Total Floor Area
157 sq m
Current CO2 Emissions Level
8.0
Potential CO2 Emissions Level
4.4
CO2 per sq m per Year
51
Mains Gas Available
Yes
Habitable Rooms
8
Number of Extensions
1
Address
153a Hertford Road
Date
1 Nov 2022
Current
Potential
65
74
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
1 Nov 2022
65
74
30 Oct 2012
55
76
Total Floor Area
60 sq m
Current CO2 Emissions Level
2.6
Potential CO2 Emissions Level
1.8
CO2 per sq m per Year
44
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
2
Address
153b Hertford Road
Date
12 Sep 2017
Current
Potential
70
81
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1930-1949
Certificate History
12 Sep 2017
70
81
Total Floor Area
51 sq m
Current CO2 Emissions Level
1.9
Potential CO2 Emissions Level
0.9
CO2 per sq m per Year
37
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
155 Hertford Road
Date
29 May 2019
Current
Potential
66
80
Property Type
Flat
Built Form
End-Terrace
Constructed
1930-1949
Certificate History
29 May 2019
66
80
Total Floor Area
37 sq m
Current CO2 Emissions Level
2.0
Potential CO2 Emissions Level
1.7
CO2 per sq m per Year
55
Mains Gas Available
No
Habitable Rooms
3
Number of Extensions
0
Address
155A Hertford Road
Date
9 Sep 2019
Current
Potential
44
78
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
9 Sep 2019
44
78
25 Mar 2009
57
69
17 Nov 2008
61
70
Total Floor Area
48 sq m
Current CO2 Emissions Level
3.2
Potential CO2 Emissions Level
2.2
CO2 per sq m per Year
66
Mains Gas Available
No
Habitable Rooms
2
Number of Extensions
0
Address
155b Hertford Road
Date
5 Aug 2020
Current
Potential
66
79
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1930-1949
Certificate History
5 Aug 2020
66
79
Total Floor Area
42 sq m
Current CO2 Emissions Level
2.0
Potential CO2 Emissions Level
1.0
CO2 per sq m per Year
48
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
155c Hertford Road
Date
7 Oct 2020
Current
Potential
46
74
Property Type
Flat
Built Form
End-Terrace
Constructed
1900-1929
Certificate History
7 Oct 2020
46
74
Total Floor Area
73 sq m
Current CO2 Emissions Level
3.7
Potential CO2 Emissions Level
2.6
CO2 per sq m per Year
51
Mains Gas Available
No
Habitable Rooms
5
Number of Extensions
0
Address
155d Hertford Road
Date
23 Apr 2020
Current
Potential
45
77
Property Type
Flat
Built Form
Detached
Constructed
1930-1949
Certificate History
23 Apr 2020
45
77
Total Floor Area
18 sq m
Current CO2 Emissions Level
2.1
Potential CO2 Emissions Level
1.1
CO2 per sq m per Year
116
Mains Gas Available
No
Habitable Rooms
1
Number of Extensions
0
Address
155e Hertford Road
Date
23 Apr 2020
Current
Potential
45
77
Property Type
Flat
Built Form
Detached
Constructed
1930-1949
Certificate History
23 Apr 2020
45
77
Total Floor Area
18 sq m
Current CO2 Emissions Level
2.1
Potential CO2 Emissions Level
1.1
CO2 per sq m per Year
116
Mains Gas Available
No
Habitable Rooms
1
Number of Extensions
0
Address
155f Hertford Road
Date
23 Apr 2020
Current
Potential
47
77
Property Type
Flat
Built Form
Detached
Constructed
1930-1949
Certificate History
23 Apr 2020
47
77
Total Floor Area
16 sq m
Current CO2 Emissions Level
1.9
Potential CO2 Emissions Level
1.0
CO2 per sq m per Year
122
Mains Gas Available
No
Habitable Rooms
1
Number of Extensions
0
Address
155g Hertford Road
Date
23 Apr 2020
Current
Potential
45
77
Property Type
Flat
Built Form
Detached
Constructed
1930-1949
Certificate History
23 Apr 2020
45
77
Total Floor Area
18 sq m
Current CO2 Emissions Level
2.1
Potential CO2 Emissions Level
1.1
CO2 per sq m per Year
116
Mains Gas Available
No
Habitable Rooms
1
Number of Extensions
0
Address
155h Hertford Road
Date
23 Apr 2020
Current
Potential
47
77
Property Type
Flat
Built Form
Detached
Constructed
1930-1949
Certificate History
23 Apr 2020
47
77
Total Floor Area
16 sq m
Current CO2 Emissions Level
1.9
Potential CO2 Emissions Level
1.0
CO2 per sq m per Year
122
Mains Gas Available
No
Habitable Rooms
1
Number of Extensions
0
Address
157 Hertford Road
Date
14 Nov 2023
Current
Potential
80
89
Property Type
House
Built Form
Mid-Terrace
Constructed
1930-1949
Certificate History
14 Nov 2023
80
89
20 Dec 2011
63
68
Total Floor Area
76 sq m
Current CO2 Emissions Level
1.7
Potential CO2 Emissions Level
0.7
CO2 per sq m per Year
23
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
1
Address
159 Hertford Road
Date
6 Sep 2019
Current
Potential
66
83
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
6 Sep 2019
66
83
29 Mar 2019
68
89
Total Floor Area
75 sq m
Current CO2 Emissions Level
3.0
Potential CO2 Emissions Level
1.4
CO2 per sq m per Year
40
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
161 Hertford Road
Date
5 Oct 2021
Current
Potential
63
81
Property Type
House
Built Form
Mid-Terrace
Constructed
1950-1966
Certificate History
5 Oct 2021
63
81
Total Floor Area
106 sq m
Current CO2 Emissions Level
4.0
Potential CO2 Emissions Level
1.8
CO2 per sq m per Year
37
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
1
Address
163 Hertford Road
Date
18 Aug 2024
Current
Potential
59
79
Property Type
House
Built Form
End-Terrace
Constructed
1930-1949
Certificate History
18 Aug 2024
59
79
20 Jun 2012
56
85
Total Floor Area
87 sq m
Current CO2 Emissions Level
4.2
Potential CO2 Emissions Level
2.0
CO2 per sq m per Year
49
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
1
Address
165 Hertford Road
Date
17 Feb 2009
Current
Potential
56
72
Property Type
Maisonette
Built Form
End-Terrace
Constructed
before 1900
Certificate History
17 Feb 2009
56
72
Total Floor Area
59 sq m
Current CO2 Emissions Level
4.3
Potential CO2 Emissions Level
2.8
CO2 per sq m per Year
62
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
165a Hertford Road
Date
24 Sep 2019
Current
Potential
49
66
Property Type
Flat
Built Form
Semi-Detached
Constructed
1900-1929
Certificate History
24 Sep 2019
49
66
Total Floor Area
71 sq m
Current CO2 Emissions Level
4.7
Potential CO2 Emissions Level
2.9
CO2 per sq m per Year
66
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
1
Address
167 Hertford Road
Date
21 May 2012
Current
Potential
64
76
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
21 May 2012
64
76
Total Floor Area
54 sq m
Current CO2 Emissions Level
2.5
Potential CO2 Emissions Level
1.4
CO2 per sq m per Year
47
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
167a Hertford road
Date
12 Jan 2022
Current
Potential
61
74
Property Type
Flat
Built Form
End-Terrace
Constructed
1900-1929
Certificate History
12 Jan 2022
61
74
Total Floor Area
44 sq m
Current CO2 Emissions Level
2.5
Potential CO2 Emissions Level
1.5
CO2 per sq m per Year
56
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
169b Hertford Road
Date
11 Dec 2020
Current
Potential
59
59
Property Type
Flat
Built Form
Semi-Detached
Constructed
1900-1929
Certificate History
11 Dec 2020
59
59
Total Floor Area
71 sq m
Current CO2 Emissions Level
3.7
Potential CO2 Emissions Level
3.7
CO2 per sq m per Year
51
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
1
Address
169c Hertford Road
Date
21 Apr 2024
Current
Potential
53
74
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1930-1949
Certificate History
21 Apr 2024
53
74
14 Mar 2009
47
55
Total Floor Area
69 sq m
Current CO2 Emissions Level
4.1
Potential CO2 Emissions Level
1.9
CO2 per sq m per Year
60
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
First & Second Floor Flat, 167b Hertford Road
Date
2 Jun 2014
Current
Potential
55
63
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
2 Jun 2014
55
63
Total Floor Area
78 sq m
Current CO2 Emissions Level
4.3
Potential CO2 Emissions Level
3.4
CO2 per sq m per Year
55
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
1
Address
Flat 1, 145 Hertford Road
Date
19 Oct 2021
Current
Potential
66
78
Property Type
Flat
Built Form
Enclosed Mid-Terrace
Constructed
1930-1949
Certificate History
19 Oct 2021
66
78
Total Floor Area
35 sq m
Current CO2 Emissions Level
1.7
Potential CO2 Emissions Level
1.3
CO2 per sq m per Year
48
Mains Gas Available
No
Habitable Rooms
3
Number of Extensions
0
Address
Flat 1, 147 Hertford Road
Date
8 May 2024
Current
Potential
64
78
Property Type
Flat
Built Form
Mid-Terrace
Constructed
before 1900
Certificate History
8 May 2024
64
78
Total Floor Area
68 sq m
Current CO2 Emissions Level
3.0
Potential CO2 Emissions Level
1.5
CO2 per sq m per Year
44
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
Flat 1, 169a Hertford Road
Date
31 Oct 2019
Current
Potential
53
79
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1930-1949
Certificate History
31 Oct 2019
53
79
20 Apr 2009
54
62
Total Floor Area
33 sq m
Current CO2 Emissions Level
2.2
Potential CO2 Emissions Level
1.9
CO2 per sq m per Year
67
Mains Gas Available
No
Habitable Rooms
2
Number of Extensions
0
Address
Flat 2, 169a Hertford Road
Date
30 Jan 2015
Current
Potential
12
50
Property Type
Flat
Built Form
End-Terrace
Constructed
1950-1966
Certificate History
30 Jan 2015
12
50
19 Mar 2009
36
36
Total Floor Area
40 sq m
Current CO2 Emissions Level
9.6
Potential CO2 Emissions Level
4.8
CO2 per sq m per Year
239
Mains Gas Available
No
Habitable Rooms
2
Number of Extensions
0
Address
FLAT 2 169A Hertford Road
Date
8 Mar 2023
Current
Potential
70
80
Property Type
Maisonette
Built Form
Semi-Detached
Constructed
1930-1949
Certificate History
8 Mar 2023
70
80
Total Floor Area
47 sq m
Current CO2 Emissions Level
1.9
Potential CO2 Emissions Level
1.0
CO2 per sq m per Year
39
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
Flat 3, 145 Hertford Road
Date
19 Oct 2021
Current
Potential
75
79
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1930-1949
Certificate History
19 Oct 2021
75
79
6 Oct 2008
64
66
29 Sep 2009
68
69
Total Floor Area
30 sq m
Current CO2 Emissions Level
1.1
Potential CO2 Emissions Level
0.8
CO2 per sq m per Year
38
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
Flat 3, 147 Hertford Road
Date
13 May 2014
Current
Potential
48
63
Property Type
Flat
Built Form
Detached
Constructed
1900-1929
Certificate History
13 May 2014
48
63
29 Aug 2012
62
77
Total Floor Area
58 sq m
Current CO2 Emissions Level
4.2
Potential CO2 Emissions Level
2.8
CO2 per sq m per Year
72
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
Flat 3, 169a Hertford Road
Date
11 Jan 2018
Current
Potential
80
80
Property Type
Flat
Built Form
Mid-Terrace
Constructed
N/A
Certificate History
11 Jan 2018
80
80
Total Floor Area
76 sq m
Current CO2 Emissions Level
1.5
Potential CO2 Emissions Level
1.5
CO2 per sq m per Year
20
Mains Gas Available
No
Habitable Rooms
0
Number of Extensions
0
Address
Flat 4, 145 Hertford Road
Date
19 Oct 2021
Current
Potential
67
80
Property Type
Flat
Built Form
Enclosed Mid-Terrace
Constructed
1930-1949
Certificate History
19 Oct 2021
67
80
29 Sep 2009
74
74
29 Sep 2009
68
69
Total Floor Area
25 sq m
Current CO2 Emissions Level
1.4
Potential CO2 Emissions Level
1.0
CO2 per sq m per Year
57
Mains Gas Available
No
Habitable Rooms
2
Number of Extensions
0
Address
Flat 5, 145 Hertford Road
Date
19 Oct 2021
Current
Potential
73
74
Property Type
Flat
Built Form
Enclosed Mid-Terrace
Constructed
1930-1949
Certificate History
19 Oct 2021
73
74
10 May 2009
75
75
Total Floor Area
20 sq m
Current CO2 Emissions Level
1.1
Potential CO2 Emissions Level
0.9
CO2 per sq m per Year
53
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Bands
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.