PROPERTY ENERGY EFFICIENCY CERTIFICATE DETAILS
Cornwall Avenue, SLOUGH, SL2 1AY

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 Cornwall Avenue, SL2 1AY 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 Cornwall Avenue, SLOUGH, SL2 1AY
Period Covered: 2008 - 31 January 2025

Address
Inspection Date
Current
Potential
Property Type
Built Form
Constructed
Address
1 Cornwall Avenue
Date
23 Jun 2022
Current
Potential
63
75
Property Type
Flat
Built Form
Semi-Detached
Constructed
1930-1949
+
Certificate History
23 Jun 2022
63
75
Total Floor Area
51 sq m
Current CO2 Emissions Level
2.6
Potential CO2 Emissions Level
1.5
CO2 per sq m per Year
52
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
1
Address
11 Cornwall Avenue
Date
10 Nov 2018
Current
Potential
41
65
Property Type
Maisonette
Built Form
Semi-Detached
Constructed
1900-1929
+
Certificate History
10 Nov 2018
41
65
Total Floor Area
55 sq m
Current CO2 Emissions Level
5.1
Potential CO2 Emissions Level
2.6
CO2 per sq m per Year
92
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
13 CORNWALL AVENUE
Date
30 Jun 2021
Current
Potential
70
75
Property Type
Flat
Built Form
Semi-Detached
Constructed
1930-1949
+
Certificate History
30 Jun 2021
70
75
Total Floor Area
47 sq m
Current CO2 Emissions Level
1.9
Potential CO2 Emissions Level
1.5
CO2 per sq m per Year
41
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
15 Cornwall Avenue
Date
13 Apr 2010
Current
Potential
57
66
Property Type
Maisonette
Built Form
N/A
Constructed
1900-1929
+
Certificate History
13 Apr 2010
57
66
Total Floor Area
55 sq m
Current CO2 Emissions Level
3.7
Potential CO2 Emissions Level
2.8
CO2 per sq m per Year
66
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
19 Cornwall Avenue
Date
1 Oct 2023
Current
Potential
72
89
Property Type
House
Built Form
Mid-Terrace
Constructed
1930-1949
+
Certificate History
1 Oct 2023
72
89
Total Floor Area
63 sq m
Current CO2 Emissions Level
2.2
Potential CO2 Emissions Level
0.7
CO2 per sq m per Year
35
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
21 Cornwall Avenue
Date
22 Aug 2024
Current
Potential
48
86
Property Type
House
Built Form
Mid-Terrace
Constructed
1930-1949
+
Certificate History
22 Aug 2024
48
86
Total Floor Area
89 sq m
Current CO2 Emissions Level
6.0
Potential CO2 Emissions Level
1.2
CO2 per sq m per Year
67
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
1
Address
23 Cornwall Avenue
Date
6 Aug 2009
Current
Potential
46
61
Property Type
House
Built Form
End-Terrace
Constructed
1930-1949
+
Certificate History
6 Aug 2009
46
61
Total Floor Area
66 sq m
Current CO2 Emissions Level
5.4
Potential CO2 Emissions Level
3.8
CO2 per sq m per Year
80
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
29 Cornwall Avenue
Date
1 Feb 2024
Current
Potential
69
77
Property Type
Maisonette
Built Form
Mid-Terrace
Constructed
1930-1949
+
Certificate History
1 Feb 2024
69
77
9 Mar 2011
71
78
Total Floor Area
36 sq m
Current CO2 Emissions Level
1.8
Potential CO2 Emissions Level
1.0
CO2 per sq m per Year
48
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
3 Cornwall Avenue
Date
23 Oct 2022
Current
Potential
69
77
Property Type
Maisonette
Built Form
Semi-Detached
Constructed
1900-1929
+
Certificate History
23 Oct 2022
69
77
Total Floor Area
42 sq m
Current CO2 Emissions Level
1.9
Potential CO2 Emissions Level
1.2
CO2 per sq m per Year
44
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
33 CORNWALL AVENUE
Date
16 May 2021
Current
Potential
62
77
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1930-1949
+
Certificate History
16 May 2021
62
77
Total Floor Area
36 sq m
Current CO2 Emissions Level
2.3
Potential CO2 Emissions Level
1.1
CO2 per sq m per Year
63
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
35 Cornwall Avenue
Date
25 Mar 2019
Current
Potential
71
76
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1930-1949
+
Certificate History
25 Mar 2019
71
76
Total Floor Area
33 sq m
Current CO2 Emissions Level
1.4
Potential CO2 Emissions Level
1.0
CO2 per sq m per Year
43
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
37 CORNWALL AVENUE, SLOUGH
Date
10 Oct 2020
Current
Potential
64
77
Property Type
Maisonette
Built Form
End-Terrace
Constructed
1930-1949
+
Certificate History
10 Oct 2020
64
77
Total Floor Area
35 sq m
Current CO2 Emissions Level
2.1
Potential CO2 Emissions Level
1.1
CO2 per sq m per Year
59
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
41a Cornwall Avenue
Date
9 May 2018
Current
Potential
58
75
Property Type
Maisonette
Built Form
Semi-Detached
Constructed
1930-1949
+
Certificate History
9 May 2018
58
75
Total Floor Area
28 sq m
Current CO2 Emissions Level
2.2
Potential CO2 Emissions Level
1.0
CO2 per sq m per Year
78
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
41b Cornwall Avenue
Date
15 Sep 2019
Current
Potential
56
68
Property Type
Flat
Built Form
Semi-Detached
Constructed
1900-1929
+
Certificate History
15 Sep 2019
56
68
Total Floor Area
31 sq m
Current CO2 Emissions Level
2.5
Potential CO2 Emissions Level
1.6
CO2 per sq m per Year
82
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
43 Cornwall Avenue
Date
6 Mar 2015
Current
Potential
60
91
Property Type
House
Built Form
Mid-Terrace
Constructed
1930-1949
+
Certificate History
6 Mar 2015
60
91
Total Floor Area
60 sq m
Current CO2 Emissions Level
3.3
Potential CO2 Emissions Level
0.4
CO2 per sq m per Year
55
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
49 Cornwall Avenue
Date
2 Nov 2022
Current
Potential
67
76
Property Type
Maisonette
Built Form
Semi-Detached
Constructed
1900-1929
+
Certificate History
2 Nov 2022
67
76
18 Nov 2009
62
63
Total Floor Area
38 sq m
Current CO2 Emissions Level
1.8
Potential CO2 Emissions Level
1.1
CO2 per sq m per Year
49
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
5 Cornwall Avenue
Date
12 Aug 2018
Current
Potential
66
75
Property Type
Flat
Built Form
Semi-Detached
Constructed
1930-1949
+
Certificate History
12 Aug 2018
66
75
Total Floor Area
47 sq m
Current CO2 Emissions Level
2.3
Potential CO2 Emissions Level
1.4
CO2 per sq m per Year
49
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
51 Cornwall Avenue
Date
17 Jun 2013
Current
Potential
66
74
Property Type
Maisonette
Built Form
Semi-Detached
Constructed
1900-1929
+
Certificate History
17 Jun 2013
66
74
Total Floor Area
35 sq m
Current CO2 Emissions Level
1.8
Potential CO2 Emissions Level
1.2
CO2 per sq m per Year
51
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
53 Cornwall Avenue
Date
14 Nov 2022
Current
Potential
66
75
Property Type
Maisonette
Built Form
Mid-Terrace
Constructed
1900-1929
+
Certificate History
14 Nov 2022
66
75
6 Aug 2012
65
75
Total Floor Area
47 sq m
Current CO2 Emissions Level
2.3
Potential CO2 Emissions Level
1.4
CO2 per sq m per Year
48
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
1
Address
57 Cornwall Avenue
Date
12 Jun 2020
Current
Potential
70
76
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1950-1966
+
Certificate History
12 Jun 2020
70
76
Total Floor Area
36 sq m
Current CO2 Emissions Level
1.6
Potential CO2 Emissions Level
1.1
CO2 per sq m per Year
44
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
59 Cornwall Avenue
Date
18 Jan 2019
Current
Potential
69
78
Property Type
Maisonette
Built Form
Semi-Detached
Constructed
1900-1929
+
Certificate History
18 Jan 2019
69
78
Total Floor Area
55 sq m
Current CO2 Emissions Level
2.2
Potential CO2 Emissions Level
1.4
CO2 per sq m per Year
41
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
61 Cornwall Avenue
Date
21 Nov 2019
Current
Potential
64
75
Property Type
Flat
Built Form
End-Terrace
Constructed
1930-1949
+
Certificate History
21 Nov 2019
64
75
Total Floor Area
36 sq m
Current CO2 Emissions Level
2.0
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
67 Cornwall Avenue
Date
14 Nov 2022
Current
Potential
69
89
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
+
Certificate History
14 Nov 2022
69
89
3 Jul 2011
60
68
Total Floor Area
61 sq m
Current CO2 Emissions Level
2.4
Potential CO2 Emissions Level
0.6
CO2 per sq m per Year
39
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
7 Cornwall Avenue
Date
16 Aug 2017
Current
Potential
57
66
Property Type
Maisonette
Built Form
Semi-Detached
Constructed
1930-1949
+
Certificate History
16 Aug 2017
57
66
Total Floor Area
52 sq m
Current CO2 Emissions Level
3.2
Potential CO2 Emissions Level
2.4
CO2 per sq m per Year
61
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
73 Cornwall Avenue
Date
19 Jul 2020
Current
Potential
70
78
Property Type
Maisonette
Built Form
Semi-Detached
Constructed
1900-1929
+
Certificate History
19 Jul 2020
70
78
24 May 2011
69
76
Total Floor Area
49 sq m
Current CO2 Emissions Level
1.9
Potential CO2 Emissions Level
1.3
CO2 per sq m per Year
40
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
75 Cornwall Avenue
Date
4 Nov 2024
Current
Potential
69
78
Property Type
Maisonette
Built Form
Semi-Detached
Constructed
1900-1929
+
Certificate History
4 Nov 2024
69
78
Total Floor Area
52 sq m
Current CO2 Emissions Level
2.1
Potential CO2 Emissions Level
1.3
CO2 per sq m per Year
41
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
77 Cornwall Avenue
Date
7 Oct 2015
Current
Potential
65
76
Property Type
Maisonette
Built Form
Semi-Detached
Constructed
1930-1949
+
Certificate History
7 Oct 2015
65
76
Total Floor Area
54 sq m
Current CO2 Emissions Level
2.6
Potential CO2 Emissions Level
1.6
CO2 per sq m per Year
47
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
79 Cornwall Avenue
Date
27 Nov 2021
Current
Potential
51
67
Property Type
Flat
Built Form
Semi-Detached
Constructed
1930-1949
+
Certificate History
27 Nov 2021
51
67
28 May 2009
64
67
Total Floor Area
54 sq m
Current CO2 Emissions Level
3.9
Potential CO2 Emissions Level
2.4
CO2 per sq m per Year
73
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
Flat 1 , Mars House
Date
28 Jul 2022
Current
Potential
83
83
Property Type
Flat
Built Form
End-Terrace
Constructed
2019
+
Certificate History
28 Jul 2022
83
83
Total Floor Area
64 sq m
Current CO2 Emissions Level
1.0
Potential CO2 Emissions Level
1.0
CO2 per sq m per Year
15
Mains Gas Available
No
Habitable Rooms
0
Number of Extensions
0
Address
Flat 10, Mars House
Date
28 Jul 2022
Current
Potential
84
84
Property Type
Flat
Built Form
End-Terrace
Constructed
2019
+
Certificate History
28 Jul 2022
84
84
Total Floor Area
62 sq m
Current CO2 Emissions Level
0.9
Potential CO2 Emissions Level
0.9
CO2 per sq m per Year
14
Mains Gas Available
No
Habitable Rooms
0
Number of Extensions
0
Address
Flat 11, Mars House
Date
28 Jul 2022
Current
Potential
83
83
Property Type
Flat
Built Form
Mid-Terrace
Constructed
2019
+
Certificate History
28 Jul 2022
83
83
Total Floor Area
50 sq m
Current CO2 Emissions Level
0.8
Potential CO2 Emissions Level
0.8
CO2 per sq m per Year
17
Mains Gas Available
No
Habitable Rooms
0
Number of Extensions
0
Address
Flat 12, Mars House
Date
28 Jul 2022
Current
Potential
83
83
Property Type
Flat
Built Form
Mid-Terrace
Constructed
2019
+
Certificate History
28 Jul 2022
83
83
Total Floor Area
50 sq m
Current CO2 Emissions Level
0.8
Potential CO2 Emissions Level
0.8
CO2 per sq m per Year
17
Mains Gas Available
No
Habitable Rooms
0
Number of Extensions
0
Address
Flat 2, Mars House
Date
28 Jul 2022
Current
Potential
84
84
Property Type
Flat
Built Form
Mid-Terrace
Constructed
2019
+
Certificate History
28 Jul 2022
84
84
Total Floor Area
54 sq m
Current CO2 Emissions Level
0.8
Potential CO2 Emissions Level
0.8
CO2 per sq m per Year
15
Mains Gas Available
No
Habitable Rooms
0
Number of Extensions
0
Address
Flat 3, Mars House
Date
28 Jul 2022
Current
Potential
84
84
Property Type
Flat
Built Form
Mid-Terrace
Constructed
2019
+
Certificate History
28 Jul 2022
84
84
Total Floor Area
65 sq m
Current CO2 Emissions Level
0.9
Potential CO2 Emissions Level
0.9
CO2 per sq m per Year
14
Mains Gas Available
No
Habitable Rooms
0
Number of Extensions
0
Address
Flat 4, Mars House
Date
28 Jul 2022
Current
Potential
84
84
Property Type
Flat
Built Form
Mid-Terrace
Constructed
2019
+
Certificate History
28 Jul 2022
84
84
Total Floor Area
54 sq m
Current CO2 Emissions Level
0.8
Potential CO2 Emissions Level
0.8
CO2 per sq m per Year
15
Mains Gas Available
No
Habitable Rooms
0
Number of Extensions
0
Address
Flat 5, Mars House
Date
28 Jul 2022
Current
Potential
83
83
Property Type
Flat
Built Form
End-Terrace
Constructed
2019
+
Certificate History
28 Jul 2022
83
83
Total Floor Area
61 sq m
Current CO2 Emissions Level
0.9
Potential CO2 Emissions Level
0.9
CO2 per sq m per Year
15
Mains Gas Available
No
Habitable Rooms
0
Number of Extensions
0
Address
Flat 6, Mars House
Date
28 Jul 2022
Current
Potential
84
84
Property Type
Flat
Built Form
End-Terrace
Constructed
2019
+
Certificate History
28 Jul 2022
84
84
Total Floor Area
61 sq m
Current CO2 Emissions Level
0.9
Potential CO2 Emissions Level
0.9
CO2 per sq m per Year
14
Mains Gas Available
No
Habitable Rooms
0
Number of Extensions
0
Address
Flat 7, Mars House
Date
28 Jul 2022
Current
Potential
83
83
Property Type
Flat
Built Form
Mid-Terrace
Constructed
2019
+
Certificate History
28 Jul 2022
83
83
Total Floor Area
50 sq m
Current CO2 Emissions Level
0.8
Potential CO2 Emissions Level
0.8
CO2 per sq m per Year
15
Mains Gas Available
No
Habitable Rooms
0
Number of Extensions
0
Address
Flat 8, Mars House
Date
28 Jul 2022
Current
Potential
84
84
Property Type
Flat
Built Form
Mid-Terrace
Constructed
2019
+
Certificate History
28 Jul 2022
84
84
Total Floor Area
50 sq m
Current CO2 Emissions Level
0.8
Potential CO2 Emissions Level
0.8
CO2 per sq m per Year
15
Mains Gas Available
No
Habitable Rooms
0
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.