PROPERTY ENERGY EFFICIENCY CERTIFICATE DETAILS
Mason Street, LONDON, SE17 1HF

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 Mason Street, SE17 1HF 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 Mason Street, LONDON, SE17 1HF
Period Covered: 2008 - 31 January 2025

Address
Inspection Date
Current
Potential
Property Type
Built Form
Constructed
Address
11b Mason Street
Date
8 Jan 2010
Current
Potential
64
72
Property Type
Maisonette
Built Form
Detached
Constructed
1900-1929
+
Certificate History
8 Jan 2010
64
72
Total Floor Area
93 sq m
Current CO2 Emissions Level
4.2
Potential CO2 Emissions Level
3.3
CO2 per sq m per Year
46
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
15b Mason Street
Date
8 Jan 2010
Current
Potential
64
74
Property Type
Maisonette
Built Form
Detached
Constructed
1900-1929
+
Certificate History
8 Jan 2010
64
74
Total Floor Area
93 sq m
Current CO2 Emissions Level
4.3
Potential CO2 Emissions Level
3.1
CO2 per sq m per Year
47
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
17b Mason Street
Date
22 Jul 2022
Current
Potential
61
87
Property Type
House
Built Form
Semi-Detached
Constructed
1930-1949
+
Certificate History
22 Jul 2022
61
87
Total Floor Area
83 sq m
Current CO2 Emissions Level
3.7
Potential CO2 Emissions Level
0.9
CO2 per sq m per Year
45
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
25b Mason Street
Date
8 Mar 2016
Current
Potential
66
81
Property Type
Maisonette
Built Form
Mid-Terrace
Constructed
1950-1966
+
Certificate History
8 Mar 2016
66
81
30 Jan 2009
35
54
Total Floor Area
112 sq m
Current CO2 Emissions Level
4.0
Potential CO2 Emissions Level
1.9
CO2 per sq m per Year
35
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
27b Mason Street
Date
17 Mar 2014
Current
Potential
65
81
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1900-1929
+
Certificate History
17 Mar 2014
65
81
11 Nov 2008
63
72
Total Floor Area
100 sq m
Current CO2 Emissions Level
3.9
Potential CO2 Emissions Level
1.8
CO2 per sq m per Year
39
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
1
Address
29b Mason Street
Date
3 Aug 2010
Current
Potential
67
73
Property Type
Maisonette
Built Form
Mid-Terrace
Constructed
before 1900
+
Certificate History
3 Aug 2010
67
73
Total Floor Area
89 sq m
Current CO2 Emissions Level
3.6
Potential CO2 Emissions Level
3.1
CO2 per sq m per Year
41
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
35b Mason Street
Date
3 Dec 2009
Current
Potential
66
74
Property Type
Maisonette
Built Form
Mid-Terrace
Constructed
1900-1929
+
Certificate History
3 Dec 2009
66
74
Total Floor Area
95 sq m
Current CO2 Emissions Level
4.1
Potential CO2 Emissions Level
3.2
CO2 per sq m per Year
43
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
37b Mason Street
Date
11 Dec 2014
Current
Potential
64
76
Property Type
Maisonette
Built Form
Mid-Terrace
Constructed
1900-1929
+
Certificate History
11 Dec 2014
64
76
Total Floor Area
92 sq m
Current CO2 Emissions Level
3.5
Potential CO2 Emissions Level
2.1
CO2 per sq m per Year
39
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
1
Address
39b Mason Street
Date
20 Jun 2023
Current
Potential
53
76
Property Type
Maisonette
Built Form
Mid-Terrace
Constructed
before 1900
+
Certificate History
20 Jun 2023
53
76
Total Floor Area
91 sq m
Current CO2 Emissions Level
4.8
Potential CO2 Emissions Level
2.1
CO2 per sq m per Year
53
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
45b Mason Street
Date
16 Aug 2011
Current
Potential
54
63
Property Type
Maisonette
Built Form
Mid-Terrace
Constructed
1900-1929
+
Certificate History
16 Aug 2011
54
63
14 Aug 2011
53
61
Total Floor Area
97 sq m
Current CO2 Emissions Level
5.5
Potential CO2 Emissions Level
4.3
CO2 per sq m per Year
57
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
5b Mason Street
Date
16 Mar 2023
Current
Potential
74
77
Property Type
Maisonette
Built Form
Mid-Terrace
Constructed
1983-1990
+
Certificate History
16 Mar 2023
74
77
Total Floor Area
84 sq m
Current CO2 Emissions Level
2.1
Potential CO2 Emissions Level
1.8
CO2 per sq m per Year
25
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
1
Address
7b Mason Street
Date
25 Aug 2020
Current
Potential
60
74
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1900-1929
+
Certificate History
25 Aug 2020
60
74
2 Feb 2009
68
72
Total Floor Area
94 sq m
Current CO2 Emissions Level
4.2
Potential CO2 Emissions Level
2.4
CO2 per sq m per Year
45
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
Basement Flat, 24 Mason Street
Date
14 Mar 2012
Current
Potential
19
42
Property Type
Flat
Built Form
Detached
Constructed
1900-1929
+
Certificate History
14 Mar 2012
19
42
Total Floor Area
63 sq m
Current CO2 Emissions Level
6.7
Potential CO2 Emissions Level
7.6
CO2 per sq m per Year
105
Mains Gas Available
No
Habitable Rooms
2
Number of Extensions
0
Address
FLAT 1, 24 MASON STREET
Date
17 May 2021
Current
Potential
65
77
Property Type
Flat
Built Form
Semi-Detached
Constructed
1900-1929
+
Certificate History
17 May 2021
65
77
Total Floor Area
58 sq m
Current CO2 Emissions Level
2.5
Potential CO2 Emissions Level
1.4
CO2 per sq m per Year
43
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
Flat 1, 24, Mason Street
Date
15 Feb 2010
Current
Potential
71
74
Property Type
Flat
Built Form
N/A
Constructed
1900-1929
+
Certificate History
15 Feb 2010
71
74
Total Floor Area
55 sq m
Current CO2 Emissions Level
2.4
Potential CO2 Emissions Level
2.0
CO2 per sq m per Year
43
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
Flat 2, 24 Mason Street
Date
20 Jun 2022
Current
Potential
76
77
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1996-2002
+
Certificate History
20 Jun 2022
76
77
7 May 2009
75
77
Total Floor Area
47 sq m
Current CO2 Emissions Level
1.3
Potential CO2 Emissions Level
1.2
CO2 per sq m per Year
28
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
Flat 3, 24, Mason Street
Date
12 Dec 2019
Current
Potential
69
72
Property Type
Flat
Built Form
End-Terrace
Constructed
1900-1929
+
Certificate History
12 Dec 2019
69
72
5 May 2009
72
77
Total Floor Area
45 sq m
Current CO2 Emissions Level
1.8
Potential CO2 Emissions Level
1.6
CO2 per sq m per Year
40
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
Flat 4, 24 Mason Street
Date
19 Apr 2022
Current
Potential
71
78
Property Type
Flat
Built Form
Enclosed End-Terrace
Constructed
1900-1929
+
Certificate History
19 Apr 2022
71
78
14 Mar 2012
56
60
21 Oct 2009
71
75
Total Floor Area
40 sq m
Current CO2 Emissions Level
1.5
Potential CO2 Emissions Level
1.0
CO2 per sq m per Year
37
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
FLAT 5, 24 MASON STREET
Date
20 Apr 2021
Current
Potential
77
82
Property Type
Flat
Built Form
Semi-Detached
Constructed
1900-1929
+
Certificate History
20 Apr 2021
77
82
Total Floor Area
54 sq m
Current CO2 Emissions Level
1.3
Potential CO2 Emissions Level
0.9
CO2 per sq m per Year
24
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
Flat 5, 24, Mason Street
Date
28 Feb 2011
Current
Potential
79
83
Property Type
Flat
Built Form
End-Terrace
Constructed
1991-1995
+
Certificate History
28 Feb 2011
79
83
Total Floor Area
54 sq m
Current CO2 Emissions Level
1.7
Potential CO2 Emissions Level
1.4
CO2 per sq m per Year
31
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
Flat 6, 24, Mason Street
Date
29 Dec 2016
Current
Potential
56
57
Property Type
Flat
Built Form
Detached
Constructed
1900-1929
+
Certificate History
29 Dec 2016
56
57
Total Floor Area
58 sq m
Current CO2 Emissions Level
3.3
Potential CO2 Emissions Level
3.2
CO2 per sq m per Year
57
Mains Gas Available
Yes
Habitable Rooms
3
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.

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Contains Royal Mail data © Royal Mail copyright and Database right 2025.