PROPERTY ENERGY EFFICIENCY CERTIFICATE DETAILS
Trelawney Avenue, SLOUGH, SL3 8RF
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 Trelawney Avenue, SL3 8RF 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 Trelawney Avenue, SLOUGH, SL3 8RF
Period Covered:
2008 - 31 January 2025
Address
Inspection Date
Current
Potential
Property Type
Built Form
Constructed
Address
177 Trelawney Avenue
Date
1 May 2009
Current
Potential
58
74
Property Type
House
Built Form
End-Terrace
Constructed
1950-1966
Certificate History
1 May 2009
58
74
Total Floor Area
70 sq m
Current CO2 Emissions Level
4.4
Potential CO2 Emissions Level
2.6
CO2 per sq m per Year
62
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
0
Address
179 Trelawney Avenue
Date
27 Mar 2024
Current
Potential
69
87
Property Type
House
Built Form
Mid-Terrace
Constructed
1967-1975
Certificate History
27 Mar 2024
69
87
11 Nov 2008
57
77
Total Floor Area
64 sq m
Current CO2 Emissions Level
2.5
Potential CO2 Emissions Level
0.9
CO2 per sq m per Year
39
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
183 Trelawney Avenue
Date
31 Jul 2024
Current
Potential
69
90
Property Type
Bungalow
Built Form
End-Terrace
Constructed
1930-1949
Certificate History
31 Jul 2024
69
90
15 Jun 2024
69
91
5 May 2016
64
91
Total Floor Area
32 sq m
Current CO2 Emissions Level
1.6
Potential CO2 Emissions Level
0.3
CO2 per sq m per Year
49
Mains Gas Available
Yes
Habitable Rooms
1
Number of Extensions
0
Address
187 Trelawney Avenue
Date
1 Apr 2014
Current
Potential
51
83
Property Type
House
Built Form
Mid-Terrace
Constructed
1930-1949
Certificate History
1 Apr 2014
51
83
Total Floor Area
63 sq m
Current CO2 Emissions Level
4.1
Potential CO2 Emissions Level
1.3
CO2 per sq m per Year
65
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
189 Trelawney Avenue
Date
2 Sep 2013
Current
Potential
74
91
Property Type
House
Built Form
Mid-Terrace
Constructed
1967-1975
Certificate History
2 Sep 2013
74
91
Total Floor Area
59 sq m
Current CO2 Emissions Level
1.8
Potential CO2 Emissions Level
0.4
CO2 per sq m per Year
30
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
191 Trelawney Avenue
Date
2 Apr 2024
Current
Potential
72
86
Property Type
House
Built Form
End-Terrace
Constructed
1950-1966
Certificate History
2 Apr 2024
72
86
Total Floor Area
73 sq m
Current CO2 Emissions Level
2.3
Potential CO2 Emissions Level
1.0
CO2 per sq m per Year
32
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
193 Trelawney Avenue
Date
11 Sep 2023
Current
Potential
71
74
Property Type
Flat
Built Form
End-Terrace
Constructed
1950-1966
Certificate History
11 Sep 2023
71
74
11 Apr 2013
69
74
Total Floor Area
45 sq m
Current CO2 Emissions Level
1.7
Potential CO2 Emissions Level
1.5
CO2 per sq m per Year
38
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
195 Trelawney Avenue
Date
12 Jun 2016
Current
Potential
72
78
Property Type
Flat
Built Form
End-Terrace
Constructed
1950-1966
Certificate History
12 Jun 2016
72
78
Total Floor Area
47 sq m
Current CO2 Emissions Level
1.6
Potential CO2 Emissions Level
1.2
CO2 per sq m per Year
35
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
197 Trelawney Avenue
Date
10 Mar 2022
Current
Potential
62
62
Property Type
Flat
Built Form
End-Terrace
Constructed
1950-1966
Certificate History
10 Mar 2022
62
62
28 Sep 2010
67
67
Total Floor Area
46 sq m
Current CO2 Emissions Level
2.5
Potential CO2 Emissions Level
2.5
CO2 per sq m per Year
55
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
199 Trelawney Avenue
Date
15 May 2012
Current
Potential
62
65
Property Type
Flat
Built Form
Semi-Detached
Constructed
1950-1966
Certificate History
15 May 2012
62
65
Total Floor Area
48 sq m
Current CO2 Emissions Level
2.5
Potential CO2 Emissions Level
2.3
CO2 per sq m per Year
52
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
201 Trelawney Avenue
Date
13 Sep 2020
Current
Potential
72
76
Property Type
Flat
Built Form
Semi-Detached
Constructed
1950-1966
Certificate History
13 Sep 2020
72
76
Total Floor Area
48 sq m
Current CO2 Emissions Level
1.7
Potential CO2 Emissions Level
1.4
CO2 per sq m per Year
36
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
205 Trelawney Avenue
Date
4 Mar 2024
Current
Potential
65
66
Property Type
Flat
Built Form
Semi-Detached
Constructed
1950-1966
Certificate History
4 Mar 2024
65
66
23 Oct 2008
64
68
Total Floor Area
46 sq m
Current CO2 Emissions Level
2.3
Potential CO2 Emissions Level
2.2
CO2 per sq m per Year
50
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
205 TRELAWNEY AVENUE, SLOUGH
Date
26 Oct 2020
Current
Potential
63
66
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1950-1966
Certificate History
26 Oct 2020
63
66
Total Floor Area
49 sq m
Current CO2 Emissions Level
2.6
Potential CO2 Emissions Level
2.3
CO2 per sq m per Year
52
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
207 Trelawney Avenue
Date
15 Nov 2022
Current
Potential
64
64
Property Type
Flat
Built Form
End-Terrace
Constructed
1950-1966
Certificate History
15 Nov 2022
64
64
3 Sep 2012
61
67
Total Floor Area
42 sq m
Current CO2 Emissions Level
2.2
Potential CO2 Emissions Level
2.2
CO2 per sq m per Year
54
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
209 Trelawney Avenue
Date
2 Apr 2024
Current
Potential
72
87
Property Type
House
Built Form
End-Terrace
Constructed
1950-1966
Certificate History
2 Apr 2024
72
87
20 Jan 2014
71
86
Total Floor Area
73 sq m
Current CO2 Emissions Level
2.3
Potential CO2 Emissions Level
1.0
CO2 per sq m per Year
32
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
211 Trelawney Avenue
Date
12 Oct 2022
Current
Potential
72
87
Property Type
House
Built Form
Mid-Terrace
Constructed
1950-1966
Certificate History
12 Oct 2022
72
87
Total Floor Area
67 sq m
Current CO2 Emissions Level
2.2
Potential CO2 Emissions Level
0.9
CO2 per sq m per Year
33
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
213 Trelawney Avenue
Date
26 Feb 2019
Current
Potential
60
86
Property Type
House
Built Form
Mid-Terrace
Constructed
1950-1966
Certificate History
26 Feb 2019
60
86
26 Feb 2019
60
85
31 Jan 2014
57
84
Total Floor Area
68 sq m
Current CO2 Emissions Level
3.5
Potential CO2 Emissions Level
1.0
CO2 per sq m per Year
52
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
1
Address
215 Trelawney Avenue
Date
28 Oct 2024
Current
Potential
69
90
Property Type
Bungalow
Built Form
End-Terrace
Constructed
1930-1949
Certificate History
28 Oct 2024
69
90
1 Nov 2017
67
91
Total Floor Area
33 sq m
Current CO2 Emissions Level
1.5
Potential CO2 Emissions Level
0.3
CO2 per sq m per Year
47
Mains Gas Available
Yes
Habitable Rooms
1
Number of Extensions
0
Address
217 Trelawney Avenue
Date
2 Apr 2024
Current
Potential
70
91
Property Type
Bungalow
Built Form
End-Terrace
Constructed
1950-1966
Certificate History
2 Apr 2024
70
91
5 Jul 2009
58
77
Total Floor Area
34 sq m
Current CO2 Emissions Level
1.5
Potential CO2 Emissions Level
0.3
CO2 per sq m per Year
45
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
219 Trelawney Avenue
Date
22 Feb 2020
Current
Potential
64
85
Property Type
House
Built Form
End-Terrace
Constructed
1950-1966
Certificate History
22 Feb 2020
64
85
Total Floor Area
67 sq m
Current CO2 Emissions Level
3.0
Potential CO2 Emissions Level
1.1
CO2 per sq m per Year
46
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
221 Trelawney Avenue
Date
26 Nov 2014
Current
Potential
68
88
Property Type
House
Built Form
Mid-Terrace
Constructed
1950-1966
Certificate History
26 Nov 2014
68
88
Total Floor Area
67 sq m
Current CO2 Emissions Level
2.5
Potential CO2 Emissions Level
0.8
CO2 per sq m per Year
38
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
225 Trelawney Avenue
Date
2 Oct 2014
Current
Potential
69
85
Property Type
House
Built Form
End-Terrace
Constructed
1976-1982
Certificate History
2 Oct 2014
69
85
2 Oct 2014
65
84
2 Oct 2014
72
84
Total Floor Area
157 sq m
Current CO2 Emissions Level
4.8
Potential CO2 Emissions Level
2.3
CO2 per sq m per Year
31
Mains Gas Available
Yes
Habitable Rooms
4
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.