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PROPERTY ENERGY EFFICIENCY CERTIFICATE DETAILS
Trelawney Avenue, SLOUGH, SL3 8RQ

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 8RQ 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 8RQ
Period Covered: 2008 - 31 January 2025

Address
Inspection Date
Current
Potential
Property Type
Built Form
Constructed
Address
129 Trelawney Avenue
Date
26 Nov 2022
Current
Potential
70
80
Property Type
House
Built Form
Semi-Detached
Constructed
1950-1966
+
Certificate History
26 Nov 2022
70
80
19 Oct 2022
54
74
Total Floor Area
90 sq m
Current CO2 Emissions Level
3.3
Potential CO2 Emissions Level
2.1
CO2 per sq m per Year
37
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
131 Trelawney Avenue
Date
9 Aug 2021
Current
Potential
71
85
Property Type
House
Built Form
Semi-Detached
Constructed
1950-1966
+
Certificate History
9 Aug 2021
71
85
8 Jun 2011
66
67
Total Floor Area
91 sq m
Current CO2 Emissions Level
2.9
Potential CO2 Emissions Level
1.4
CO2 per sq m per Year
32
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
135 Trelawney Avenue
Date
6 May 2020
Current
Potential
72
85
Property Type
House
Built Form
Semi-Detached
Constructed
1950-1966
+
Certificate History
6 May 2020
72
85
Total Floor Area
89 sq m
Current CO2 Emissions Level
2.7
Potential CO2 Emissions Level
1.4
CO2 per sq m per Year
31
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
137 Trelawney Avenue
Date
3 Jul 2014
Current
Potential
59
81
Property Type
House
Built Form
Semi-Detached
Constructed
1950-1966
+
Certificate History
3 Jul 2014
59
81
Total Floor Area
133 sq m
Current CO2 Emissions Level
5.5
Potential CO2 Emissions Level
2.4
CO2 per sq m per Year
42
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
1
Address
141 Trelawney Avenue
Date
19 Feb 2016
Current
Potential
66
88
Property Type
House
Built Form
Mid-Terrace
Constructed
1950-1966
+
Certificate History
19 Feb 2016
66
88
Total Floor Area
68 sq m
Current CO2 Emissions Level
2.9
Potential CO2 Emissions Level
0.8
CO2 per sq m per Year
43
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
145 Trelawney Avenue
Date
9 Jan 2014
Current
Potential
60
87
Property Type
House
Built Form
Mid-Terrace
Constructed
1967-1975
+
Certificate History
9 Jan 2014
60
87
Total Floor Area
59 sq m
Current CO2 Emissions Level
3.2
Potential CO2 Emissions Level
0.7
CO2 per sq m per Year
53
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
147 Trelawney Avenue
Date
2 Apr 2024
Current
Potential
71
88
Property Type
House
Built Form
Mid-Terrace
Constructed
1950-1966
+
Certificate History
2 Apr 2024
71
88
1 Sep 2016
72
91
Total Floor Area
67 sq m
Current CO2 Emissions Level
2.3
Potential CO2 Emissions Level
0.8
CO2 per sq m per Year
34
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
153 Trelawney Avenue
Date
24 Feb 2022
Current
Potential
62
83
Property Type
House
Built Form
End-Terrace
Constructed
1950-1966
+
Certificate History
24 Feb 2022
62
83
29 Apr 2009
68
72
Total Floor Area
71 sq m
Current CO2 Emissions Level
3.2
Potential CO2 Emissions Level
1.1
CO2 per sq m per Year
45
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
155 Trelawney Avenue
Date
22 Jul 2010
Current
Potential
60
77
Property Type
House
Built Form
Mid-Terrace
Constructed
1930-1949
+
Certificate History
22 Jul 2010
60
77
Total Floor Area
67 sq m
Current CO2 Emissions Level
3.9
Potential CO2 Emissions Level
2.2
CO2 per sq m per Year
58
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
157 Trelawney Avenue
Date
18 Jul 2019
Current
Potential
72
87
Property Type
House
Built Form
Mid-Terrace
Constructed
1950-1966
+
Certificate History
18 Jul 2019
72
87
Total Floor Area
69 sq m
Current CO2 Emissions Level
2.3
Potential CO2 Emissions Level
0.9
CO2 per sq m per Year
33
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
1
Address
159 Trelawney Avenue
Date
20 Mar 2019
Current
Potential
67
83
Property Type
House
Built Form
Mid-Terrace
Constructed
1967-1975
+
Certificate History
20 Mar 2019
67
83
Total Floor Area
65 sq m
Current CO2 Emissions Level
2.7
Potential CO2 Emissions Level
1.3
CO2 per sq m per Year
41
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
161 Trelawney Avenue
Date
2 Apr 2024
Current
Potential
65
81
Property Type
House
Built Form
Mid-Terrace
Constructed
1950-1966
+
Certificate History
2 Apr 2024
65
81
14 Jun 2015
62
80
Total Floor Area
67 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
4
Number of Extensions
0
Address
163 Trelawney Avenue
Date
12 Oct 2018
Current
Potential
72
88
Property Type
House
Built Form
Mid-Terrace
Constructed
1950-1966
+
Certificate History
12 Oct 2018
72
88
Total Floor Area
67 sq m
Current CO2 Emissions Level
2.2
Potential CO2 Emissions Level
0.8
CO2 per sq m per Year
32
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
1
Address
167 TRELAWNEY AVENUE, SLOUGH
Date
17 May 2021
Current
Potential
72
90
Property Type
House
Built Form
Mid-Terrace
Constructed
1950-1966
+
Certificate History
17 May 2021
72
90
Total Floor Area
66 sq m
Current CO2 Emissions Level
2.1
Potential CO2 Emissions Level
0.6
CO2 per sq m per Year
32
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
169 Trelawney Avenue
Date
12 Jun 2024
Current
Potential
70
83
Property Type
House
Built Form
Mid-Terrace
Constructed
1950-1966
+
Certificate History
12 Jun 2024
70
83
16 Jun 2014
70
86
Total Floor Area
65 sq m
Current CO2 Emissions Level
2.4
Potential CO2 Emissions Level
1.2
CO2 per sq m per Year
37
Mains Gas Available
Yes
Habitable Rooms
4
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.