PROPERTY ENERGY EFFICIENCY CERTIFICATE DETAILS
St. Leonards Avenue, WINDSOR, SL4 1HX
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 St. Leonards Avenue, SL4 1HX 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 St. Leonards Avenue, WINDSOR, SL4 1HX
Period Covered:
2008 - 31 January 2025
Address
Inspection Date
Current
Potential
Property Type
Built Form
Constructed
Address
10 St. Leonards Avenue
Date
1 Nov 2022
Current
Potential
59
81
Property Type
House
Built Form
Mid-Terrace
Constructed
before 1900
Certificate History
1 Nov 2022
59
81
9 Nov 2012
55
82
Total Floor Area
110 sq m
Current CO2 Emissions Level
5.1
Potential CO2 Emissions Level
2.1
CO2 per sq m per Year
46
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
1
Address
12a St. Leonards Avenue
Date
20 Jan 2010
Current
Potential
76
77
Property Type
Flat
Built Form
Semi-Detached
Constructed
1983-1990
Certificate History
20 Jan 2010
76
77
Total Floor Area
54 sq m
Current CO2 Emissions Level
2.1
Potential CO2 Emissions Level
1.9
CO2 per sq m per Year
38
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
1
Address
14 St. Leonards Avenue
Date
4 Feb 2023
Current
Potential
58
86
Property Type
House
Built Form
Mid-Terrace
Constructed
before 1900
Certificate History
4 Feb 2023
58
86
5 Oct 2011
55
56
18 Nov 2008
48
52
Total Floor Area
118 sq m
Current CO2 Emissions Level
5.6
Potential CO2 Emissions Level
1.6
CO2 per sq m per Year
48
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
1
Address
15 St. Leonards Avenue
Date
7 Mar 2013
Current
Potential
63
79
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
7 Mar 2013
63
79
Total Floor Area
138 sq m
Current CO2 Emissions Level
4.4
Potential CO2 Emissions Level
2.2
CO2 per sq m per Year
32
Mains Gas Available
Yes
Habitable Rooms
7
Number of Extensions
1
Address
16 St. Leonards Avenue
Date
10 Apr 2023
Current
Potential
45
76
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
10 Apr 2023
45
76
Total Floor Area
109 sq m
Current CO2 Emissions Level
7.2
Potential CO2 Emissions Level
2.9
CO2 per sq m per Year
66
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
19 St. Leonards Avenue
Date
19 Mar 2024
Current
Potential
67
84
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
19 Mar 2024
67
84
6 Aug 2012
49
80
Total Floor Area
122 sq m
Current CO2 Emissions Level
4.7
Potential CO2 Emissions Level
2.0
CO2 per sq m per Year
39
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
2
Address
2 St. Leonards Avenue
Date
22 Feb 2024
Current
Potential
62
81
Property Type
House
Built Form
End-Terrace
Constructed
1900-1929
Certificate History
22 Feb 2024
62
81
Total Floor Area
139 sq m
Current CO2 Emissions Level
5.8
Potential CO2 Emissions Level
2.7
CO2 per sq m per Year
42
Mains Gas Available
Yes
Habitable Rooms
7
Number of Extensions
4
Address
20 ST. LEONARDS AVENUE
Date
14 Jun 2021
Current
Potential
63
84
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
14 Jun 2021
63
84
Total Floor Area
100 sq m
Current CO2 Emissions Level
4.3
Potential CO2 Emissions Level
1.5
CO2 per sq m per Year
43
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
21 St. Leonards Avenue
Date
8 Nov 2018
Current
Potential
74
86
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
8 Nov 2018
74
86
11 Feb 2010
46
50
Total Floor Area
140 sq m
Current CO2 Emissions Level
3.6
Potential CO2 Emissions Level
1.9
CO2 per sq m per Year
25
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
1
Address
22 ST LEONARDS AVENUE, WINDSOR
Date
14 Dec 2020
Current
Potential
73
84
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
14 Dec 2020
73
84
Total Floor Area
144 sq m
Current CO2 Emissions Level
3.9
Potential CO2 Emissions Level
2.3
CO2 per sq m per Year
27
Mains Gas Available
Yes
Habitable Rooms
7
Number of Extensions
2
Address
24 St. Leonards Avenue
Date
14 Jun 2016
Current
Potential
65
82
Property Type
House
Built Form
Mid-Terrace
Constructed
before 1900
Certificate History
14 Jun 2016
65
82
19 Nov 2014
42
74
Total Floor Area
137 sq m
Current CO2 Emissions Level
5.1
Potential CO2 Emissions Level
2.5
CO2 per sq m per Year
37
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
3
Address
25 St. Leonards Avenue
Date
18 Jun 2020
Current
Potential
61
80
Property Type
House
Built Form
Mid-Terrace
Constructed
before 1900
Certificate History
18 Jun 2020
61
80
Total Floor Area
129 sq m
Current CO2 Emissions Level
5.7
Potential CO2 Emissions Level
2.8
CO2 per sq m per Year
44
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
1
Address
26 St. Leonards Avenue
Date
2 Nov 2010
Current
Potential
66
72
Property Type
House
Built Form
Mid-Terrace
Constructed
before 1900
Certificate History
2 Nov 2010
66
72
Total Floor Area
120 sq m
Current CO2 Emissions Level
4.7
Potential CO2 Emissions Level
4.1
CO2 per sq m per Year
40
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
2
Address
27 St. Leonards Avenue
Date
13 Sep 2015
Current
Potential
48
79
Property Type
House
Built Form
End-Terrace
Constructed
before 1900
Certificate History
13 Sep 2015
48
79
Total Floor Area
104 sq m
Current CO2 Emissions Level
6.5
Potential CO2 Emissions Level
2.4
CO2 per sq m per Year
63
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
2
Address
28 St. Leonards Avenue
Date
15 Aug 2012
Current
Potential
54
72
Property Type
House
Built Form
Mid-Terrace
Constructed
before 1900
Certificate History
15 Aug 2012
54
72
Total Floor Area
128 sq m
Current CO2 Emissions Level
6.5
Potential CO2 Emissions Level
3.8
CO2 per sq m per Year
51
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
2
Address
29a St. Leonards Avenue
Date
3 Jan 2018
Current
Potential
60
66
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
3 Jan 2018
60
66
16 Jan 2014
28
57
Total Floor Area
70 sq m
Current CO2 Emissions Level
3.6
Potential CO2 Emissions Level
3.0
CO2 per sq m per Year
51
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
29B ST LEONARDS AVENUE, WINDSOR
Date
18 Apr 2021
Current
Potential
73
78
Property Type
Flat
Built Form
End-Terrace
Constructed
1900-1929
Certificate History
18 Apr 2021
73
78
Total Floor Area
50 sq m
Current CO2 Emissions Level
1.7
Potential CO2 Emissions Level
1.3
CO2 per sq m per Year
33
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
29b St. Leonards Avenue
Date
6 Nov 2013
Current
Potential
72
76
Property Type
Flat
Built Form
Mid-Terrace
Constructed
before 1900
Certificate History
6 Nov 2013
72
76
Total Floor Area
51 sq m
Current CO2 Emissions Level
1.7
Potential CO2 Emissions Level
1.4
CO2 per sq m per Year
33
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
3 St. Leonards Avenue
Date
18 Apr 2012
Current
Potential
54
80
Property Type
House
Built Form
Mid-Terrace
Constructed
before 1900
Certificate History
18 Apr 2012
54
80
Total Floor Area
114 sq m
Current CO2 Emissions Level
5.8
Potential CO2 Emissions Level
2.3
CO2 per sq m per Year
51
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
2
Address
30 St. Leonards Avenue
Date
6 Apr 2015
Current
Potential
57
84
Property Type
House
Built Form
End-Terrace
Constructed
before 1900
Certificate History
6 Apr 2015
57
84
18 Feb 2011
32
48
Total Floor Area
87 sq m
Current CO2 Emissions Level
4.5
Potential CO2 Emissions Level
1.3
CO2 per sq m per Year
52
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
31 St. Leonards Avenue
Date
28 Apr 2013
Current
Potential
54
82
Property Type
House
Built Form
Enclosed End-Terrace
Constructed
before 1900
Certificate History
28 Apr 2013
54
82
Total Floor Area
73 sq m
Current CO2 Emissions Level
4.2
Potential CO2 Emissions Level
1.4
CO2 per sq m per Year
57
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
1
Address
33 St. Leonards Avenue
Date
23 May 2024
Current
Potential
69
87
Property Type
House
Built Form
Enclosed Mid-Terrace
Constructed
before 1900
Certificate History
23 May 2024
69
87
Total Floor Area
71 sq m
Current CO2 Emissions Level
2.6
Potential CO2 Emissions Level
0.8
CO2 per sq m per Year
37
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
36 St. Leonards Avenue
Date
20 Dec 2024
Current
Potential
57
89
Property Type
House
Built Form
End-Terrace
Constructed
1967-1975
Certificate History
20 Dec 2024
57
89
4 Jul 2013
59
85
Total Floor Area
74 sq m
Current CO2 Emissions Level
4.0
Potential CO2 Emissions Level
0.7
CO2 per sq m per Year
55
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
38 St. Leonards Avenue
Date
23 May 2022
Current
Potential
68
83
Property Type
House
Built Form
Mid-Terrace
Constructed
1967-1975
Certificate History
23 May 2022
68
83
Total Floor Area
89 sq m
Current CO2 Emissions Level
3.0
Potential CO2 Emissions Level
1.4
CO2 per sq m per Year
34
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
4 St. Leonards Avenue
Date
9 Jan 2020
Current
Potential
60
82
Property Type
House
Built Form
Mid-Terrace
Constructed
before 1900
Certificate History
9 Jan 2020
60
82
Total Floor Area
121 sq m
Current CO2 Emissions Level
5.4
Potential CO2 Emissions Level
2.2
CO2 per sq m per Year
45
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
1
Address
40 St. Leonards Avenue
Date
31 Jul 2017
Current
Potential
72
86
Property Type
House
Built Form
Mid-Terrace
Constructed
1967-1975
Certificate History
31 Jul 2017
72
86
16 Feb 2016
53
76
Total Floor Area
83 sq m
Current CO2 Emissions Level
2.6
Potential CO2 Emissions Level
1.2
CO2 per sq m per Year
31
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
0
Address
44 St. Leonards Avenue
Date
11 Jul 2019
Current
Potential
75
87
Property Type
House
Built Form
End-Terrace
Constructed
2003-2006
Certificate History
11 Jul 2019
75
87
5 Jul 2009
71
73
Total Floor Area
78 sq m
Current CO2 Emissions Level
2.2
Potential CO2 Emissions Level
1.0
CO2 per sq m per Year
28
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
1
Address
46 St. Leonards Avenue
Date
7 Jan 2020
Current
Potential
76
88
Property Type
House
Built Form
Mid-Terrace
Constructed
2003-2006
Certificate History
7 Jan 2020
76
88
24 Aug 2009
81
83
24 Aug 2009
80
82
Total Floor Area
78 sq m
Current CO2 Emissions Level
2.0
Potential CO2 Emissions Level
0.8
CO2 per sq m per Year
25
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
1
Address
48 St. Leonards Avenue
Date
20 Sep 2021
Current
Potential
80
89
Property Type
House
Built Form
End-Terrace
Constructed
2007-2011
Certificate History
20 Sep 2021
80
89
9 Mar 2009
81
83
Total Floor Area
132 sq m
Current CO2 Emissions Level
2.5
Potential CO2 Emissions Level
1.2
CO2 per sq m per Year
19
Mains Gas Available
Yes
Habitable Rooms
7
Number of Extensions
1
Address
50 St. Leonards Avenue
Date
31 Mar 2011
Current
Potential
62
70
Property Type
Flat
Built Form
Mid-Terrace
Constructed
before 1900
Certificate History
31 Mar 2011
62
70
Total Floor Area
42 sq m
Current CO2 Emissions Level
2.9
Potential CO2 Emissions Level
2.2
CO2 per sq m per Year
70
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
52a St. Leonards Avenue
Date
16 Aug 2021
Current
Potential
63
77
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
16 Aug 2021
63
77
6 Oct 2013
36
58
6 Oct 2013
50
71
24 May 2011
54
55
Total Floor Area
59 sq m
Current CO2 Emissions Level
2.9
Potential CO2 Emissions Level
1.6
CO2 per sq m per Year
49
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
1
Address
52b St. Leonards Avenue
Date
29 Jan 2020
Current
Potential
61
68
Property Type
Flat
Built Form
Mid-Terrace
Constructed
before 1900
Certificate History
29 Jan 2020
61
68
24 Jan 2010
70
78
Total Floor Area
39 sq m
Current CO2 Emissions Level
2.4
Potential CO2 Emissions Level
1.9
CO2 per sq m per Year
62
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
8 St. Leonards Avenue
Date
8 Apr 2024
Current
Potential
62
82
Property Type
House
Built Form
Mid-Terrace
Constructed
before 1900
Certificate History
8 Apr 2024
62
82
Total Floor Area
119 sq m
Current CO2 Emissions Level
5.1
Potential CO2 Emissions Level
2.1
CO2 per sq m per Year
42
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
2
Address
9 St. Leonards Avenue
Date
18 Apr 2016
Current
Potential
58
77
Property Type
House
Built Form
Mid-Terrace
Constructed
before 1900
Certificate History
18 Apr 2016
58
77
Total Floor Area
148 sq m
Current CO2 Emissions Level
6.8
Potential CO2 Emissions Level
3.7
CO2 per sq m per Year
46
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
1
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.