PROPERTY ENERGY EFFICIENCY CERTIFICATE DETAILS
Thirlmere Avenue, SLOUGH, SL1 6ED

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 Thirlmere Avenue, SL1 6ED 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 Thirlmere Avenue, SLOUGH, SL1 6ED
Period Covered: 2008 - 31 January 2025

Address
Inspection Date
Current
Potential
Property Type
Built Form
Constructed
Address
10 Thirlmere Avenue
Date
5 Jan 2015
Current
Potential
65
77
Property Type
Maisonette
Built Form
Semi-Detached
Constructed
1950-1966
+
Certificate History
5 Jan 2015
65
77
11 Dec 2014
62
77
Total Floor Area
52 sq m
Current CO2 Emissions Level
2.5
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
12 Thirlmere Avenue
Date
5 Jan 2015
Current
Potential
71
78
Property Type
Maisonette
Built Form
Semi-Detached
Constructed
1950-1966
+
Certificate History
5 Jan 2015
71
78
Total Floor Area
63 sq m
Current CO2 Emissions Level
2.3
Potential CO2 Emissions Level
1.5
CO2 per sq m per Year
36
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
14 Thirlmere Avenue
Date
6 Jan 2015
Current
Potential
70
76
Property Type
Maisonette
Built Form
Semi-Detached
Constructed
1950-1966
+
Certificate History
6 Jan 2015
70
76
10 Dec 2014
66
76
Total Floor Area
61 sq m
Current CO2 Emissions Level
2.3
Potential CO2 Emissions Level
1.7
CO2 per sq m per Year
38
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
1
Address
16 Thirlmere Avenue
Date
9 Jan 2015
Current
Potential
68
74
Property Type
Maisonette
Built Form
Semi-Detached
Constructed
1950-1966
+
Certificate History
9 Jan 2015
68
74
10 Dec 2014
53
71
Total Floor Area
89 sq m
Current CO2 Emissions Level
3.2
Potential CO2 Emissions Level
2.5
CO2 per sq m per Year
36
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
18 Thirlmere Avenue
Date
15 May 2016
Current
Potential
74
78
Property Type
Maisonette
Built Form
End-Terrace
Constructed
1950-1966
+
Certificate History
15 May 2016
74
78
4 Feb 2015
68
77
5 Jan 2015
69
77
17 Feb 2010
61
77
Total Floor Area
64 sq m
Current CO2 Emissions Level
1.9
Potential CO2 Emissions Level
1.5
CO2 per sq m per Year
29
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
2 Thirlmere Avenue
Date
28 Oct 2014
Current
Potential
68
76
Property Type
Maisonette
Built Form
Semi-Detached
Constructed
1950-1966
+
Certificate History
28 Oct 2014
68
76
24 Feb 2012
68
73
Total Floor Area
65 sq m
Current CO2 Emissions Level
2.5
Potential CO2 Emissions Level
1.7
CO2 per sq m per Year
38
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
1
Address
20 Thirlmere Avenue
Date
9 Dec 2014
Current
Potential
68
77
Property Type
Maisonette
Built Form
Semi-Detached
Constructed
1930-1949
+
Certificate History
9 Dec 2014
68
77
29 Sep 2014
69
76
Total Floor Area
63 sq m
Current CO2 Emissions Level
2.5
Potential CO2 Emissions Level
1.6
CO2 per sq m per Year
40
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
22 Thirlmere Avenue
Date
5 Jul 2016
Current
Potential
68
75
Property Type
Maisonette
Built Form
Semi-Detached
Constructed
1967-1975
+
Certificate History
5 Jul 2016
68
75
Total Floor Area
68 sq m
Current CO2 Emissions Level
2.5
Potential CO2 Emissions Level
1.9
CO2 per sq m per Year
37
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
26 Thirlmere Avenue
Date
6 Feb 2015
Current
Potential
68
78
Property Type
Maisonette
Built Form
Semi-Detached
Constructed
1950-1966
+
Certificate History
6 Feb 2015
68
78
5 Jan 2015
69
78
Total Floor Area
52 sq m
Current CO2 Emissions Level
2.2
Potential CO2 Emissions Level
1.3
CO2 per sq m per Year
43
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
28 Thirlmere Avenue
Date
7 Jan 2015
Current
Potential
69
77
Property Type
Maisonette
Built Form
Semi-Detached
Constructed
1950-1966
+
Certificate History
7 Jan 2015
69
77
10 Dec 2014
68
77
7 Jun 2011
49
76
5 Jan 2010
57
81
Total Floor Area
55 sq m
Current CO2 Emissions Level
2.3
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
2a Thirlmere Avenue
Date
18 Jun 2018
Current
Potential
84
94
Property Type
House
Built Form
Semi-Detached
Constructed
N/A
+
Certificate History
18 Jun 2018
84
94
Total Floor Area
94 sq m
Current CO2 Emissions Level
1.4
Potential CO2 Emissions Level
0.2
CO2 per sq m per Year
15
Mains Gas Available
No
Habitable Rooms
0
Number of Extensions
0
Address
2b Thirlmere Avenue
Date
18 Jun 2018
Current
Potential
84
95
Property Type
House
Built Form
Semi-Detached
Constructed
N/A
+
Certificate History
18 Jun 2018
84
95
Total Floor Area
94 sq m
Current CO2 Emissions Level
1.4
Potential CO2 Emissions Level
0.2
CO2 per sq m per Year
15
Mains Gas Available
No
Habitable Rooms
0
Number of Extensions
0
Address
2c Thirlmere Avenue
Date
18 Jun 2018
Current
Potential
84
95
Property Type
House
Built Form
Semi-Detached
Constructed
N/A
+
Certificate History
18 Jun 2018
84
95
Total Floor Area
94 sq m
Current CO2 Emissions Level
1.4
Potential CO2 Emissions Level
0.2
CO2 per sq m per Year
15
Mains Gas Available
No
Habitable Rooms
0
Number of Extensions
0
Address
2d Thirlmere Avenue
Date
18 Jun 2018
Current
Potential
84
94
Property Type
House
Built Form
Semi-Detached
Constructed
N/A
+
Certificate History
18 Jun 2018
84
94
Total Floor Area
94 sq m
Current CO2 Emissions Level
1.4
Potential CO2 Emissions Level
0.2
CO2 per sq m per Year
15
Mains Gas Available
No
Habitable Rooms
0
Number of Extensions
0
Address
32 Thirlmere Avenue
Date
8 May 2023
Current
Potential
63
63
Property Type
Maisonette
Built Form
Semi-Detached
Constructed
1950-1966
+
Certificate History
8 May 2023
63
63
Total Floor Area
74 sq m
Current CO2 Emissions Level
3.5
Potential CO2 Emissions Level
3.5
CO2 per sq m per Year
47
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
34 Thirlmere Avenue
Date
5 Jun 2015
Current
Potential
67
77
Property Type
Flat
Built Form
Semi-Detached
Constructed
1950-1966
+
Certificate History
5 Jun 2015
67
77
31 Aug 2011
59
72
Total Floor Area
64 sq m
Current CO2 Emissions Level
2.7
Potential CO2 Emissions Level
1.6
CO2 per sq m per Year
42
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
1
Address
36 Thirlmere Avenue
Date
5 Jun 2015
Current
Potential
70
77
Property Type
Flat
Built Form
Semi-Detached
Constructed
1950-1966
+
Certificate History
5 Jun 2015
70
77
Total Floor Area
62 sq m
Current CO2 Emissions Level
2.3
Potential CO2 Emissions Level
1.6
CO2 per sq m per Year
37
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
38 Thirlmere Avenue
Date
24 Oct 2013
Current
Potential
69
77
Property Type
Maisonette
Built Form
End-Terrace
Constructed
1950-1966
+
Certificate History
24 Oct 2013
69
77
27 Oct 2010
70
71
Total Floor Area
57 sq m
Current CO2 Emissions Level
2.1
Potential CO2 Emissions Level
1.4
CO2 per sq m per Year
38
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
4 Thirlmere Avenue
Date
28 Oct 2014
Current
Potential
70
76
Property Type
Maisonette
Built Form
Semi-Detached
Constructed
1950-1966
+
Certificate History
28 Oct 2014
70
76
13 Jul 2012
49
61
Total Floor Area
86 sq m
Current CO2 Emissions Level
2.8
Potential CO2 Emissions Level
2.2
CO2 per sq m per Year
33
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
40 Thirlmere Avenue
Date
18 Sep 2013
Current
Potential
68
75
Property Type
Maisonette
Built Form
Semi-Detached
Constructed
1950-1966
+
Certificate History
18 Sep 2013
68
75
Total Floor Area
62 sq m
Current CO2 Emissions Level
2.4
Potential CO2 Emissions Level
1.7
CO2 per sq m per Year
38
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
42 Thirlmere Avenue
Date
14 Jul 2022
Current
Potential
68
74
Property Type
Maisonette
Built Form
Mid-Terrace
Constructed
1950-1966
+
Certificate History
14 Jul 2022
68
74
20 Jan 2010
63
78
Total Floor Area
71 sq m
Current CO2 Emissions Level
2.6
Potential CO2 Emissions Level
2.0
CO2 per sq m per Year
37
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
1
Address
44 Thirlmere Avenue
Date
1 Sep 2011
Current
Potential
64
76
Property Type
Maisonette
Built Form
Semi-Detached
Constructed
1950-1966
+
Certificate History
1 Sep 2011
64
76
Total Floor Area
62 sq m
Current CO2 Emissions Level
2.8
Potential CO2 Emissions Level
1.7
CO2 per sq m per Year
45
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
46 Thirlmere Avenue
Date
5 Feb 2018
Current
Potential
68
71
Property Type
Flat
Built Form
Semi-Detached
Constructed
1950-1966
+
Certificate History
5 Feb 2018
68
71
Total Floor Area
67 sq m
Current CO2 Emissions Level
2.7
Potential CO2 Emissions Level
2.3
CO2 per sq m per Year
39
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
1
Address
48 THIRLMERE AVENUE, SLOUGH
Date
26 Mar 2021
Current
Potential
76
76
Property Type
Flat
Built Form
Semi-Detached
Constructed
1950-1966
+
Certificate History
26 Mar 2021
76
76
Total Floor Area
62 sq m
Current CO2 Emissions Level
1.7
Potential CO2 Emissions Level
1.7
CO2 per sq m per Year
28
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
52 Thirlmere Avenue
Date
15 Jan 2020
Current
Potential
71
76
Property Type
Maisonette
Built Form
End-Terrace
Constructed
1950-1966
+
Certificate History
15 Jan 2020
71
76
6 Oct 2010
64
82
Total Floor Area
62 sq m
Current CO2 Emissions Level
2.2
Potential CO2 Emissions Level
1.7
CO2 per sq m per Year
35
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
54 Thirlmere Avenue
Date
15 Jun 2015
Current
Potential
69
77
Property Type
Flat
Built Form
Semi-Detached
Constructed
1950-1966
+
Certificate History
15 Jun 2015
69
77
15 Jun 2015
61
75
31 May 2009
70
79
Total Floor Area
64 sq m
Current CO2 Emissions Level
2.5
Potential CO2 Emissions Level
1.7
CO2 per sq m per Year
39
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
1
Address
56 Thirlmere Avenue
Date
15 Jun 2015
Current
Potential
63
75
Property Type
Maisonette
Built Form
Semi-Detached
Constructed
1950-1966
+
Certificate History
15 Jun 2015
63
75
23 Apr 2015
56
75
12 Jan 2015
61
77
26 May 2012
63
77
Total Floor Area
77 sq m
Current CO2 Emissions Level
3.5
Potential CO2 Emissions Level
2.2
CO2 per sq m per Year
46
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
58 Thirlmere Avenue
Date
7 Jun 2015
Current
Potential
66
77
Property Type
Flat
Built Form
Semi-Detached
Constructed
1950-1966
+
Certificate History
7 Jun 2015
66
77
8 Jan 2015
60
77
23 Apr 2013
59
73
23 Apr 2013
57
74
12 Sep 2010
63
78
Total Floor Area
64 sq m
Current CO2 Emissions Level
2.8
Potential CO2 Emissions Level
1.7
CO2 per sq m per Year
44
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
1
Address
6 Thirlmere Avenue
Date
2 Mar 2019
Current
Potential
73
74
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1967-1975
+
Certificate History
2 Mar 2019
73
74
29 Mar 2009
70
77
Total Floor Area
65 sq m
Current CO2 Emissions Level
2.1
Potential CO2 Emissions Level
2.0
CO2 per sq m per Year
33
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
1
Address
60 Thirlmere Avenue
Date
7 Jun 2015
Current
Potential
71
76
Property Type
Flat
Built Form
Semi-Detached
Constructed
1950-1966
+
Certificate History
7 Jun 2015
71
76
11 Aug 2014
69
76
Total Floor Area
62 sq m
Current CO2 Emissions Level
2.2
Potential CO2 Emissions Level
1.7
CO2 per sq m per Year
36
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
62 Thirlmere Avenue
Date
7 Nov 2018
Current
Potential
72
75
Property Type
Flat
Built Form
Semi-Detached
Constructed
1950-1966
+
Certificate History
7 Nov 2018
72
75
7 Jun 2015
69
77
Total Floor Area
65 sq m
Current CO2 Emissions Level
2.2
Potential CO2 Emissions Level
1.9
CO2 per sq m per Year
34
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
1
Address
64 Thirlmere Avenue
Date
7 Sep 2017
Current
Potential
65
75
Property Type
Flat
Built Form
Semi-Detached
Constructed
1950-1966
+
Certificate History
7 Sep 2017
65
75
7 Jun 2015
71
76
Total Floor Area
61 sq m
Current CO2 Emissions Level
3.5
Potential CO2 Emissions Level
3.1
CO2 per sq m per Year
57
Mains Gas Available
No
Habitable Rooms
3
Number of Extensions
0
Address
66 Thirlmere Avenue
Date
13 Jan 2015
Current
Potential
67
78
Property Type
Maisonette
Built Form
Semi-Detached
Constructed
1950-1966
+
Certificate History
13 Jan 2015
67
78
10 Dec 2014
68
77
20 Apr 2010
74
77
Total Floor Area
52 sq m
Current CO2 Emissions Level
2.3
Potential CO2 Emissions Level
1.3
CO2 per sq m per Year
44
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
68 Thirlmere Avenue
Date
27 Aug 2019
Current
Potential
72
73
Property Type
Flat
Built Form
Semi-Detached
Constructed
1950-1966
+
Certificate History
27 Aug 2019
72
73
13 Jan 2015
72
79
Total Floor Area
62 sq m
Current CO2 Emissions Level
1.9
Potential CO2 Emissions Level
1.8
CO2 per sq m per Year
31
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
70 Thirlmere Avenue
Date
14 Dec 2011
Current
Potential
72
73
Property Type
Maisonette
Built Form
Semi-Detached
Constructed
1950-1966
+
Certificate History
14 Dec 2011
72
73
27 Jan 2025
71
73
Total Floor Area
65 sq m
Current CO2 Emissions Level
2.2
Potential CO2 Emissions Level
2.1
CO2 per sq m per Year
34
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
1
Address
72 Thirlmere Avenue
Date
1 Apr 2011
Current
Potential
70
70
Property Type
Maisonette
Built Form
N/A
Constructed
1950-1966
+
Certificate History
1 Apr 2011
70
70
23 Dec 2024
75
75
Total Floor Area
62 sq m
Current CO2 Emissions Level
2.4
Potential CO2 Emissions Level
2.4
CO2 per sq m per Year
39
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
74 Thirlmere Avenue
Date
24 Nov 2011
Current
Potential
62
74
Property Type
Maisonette
Built Form
Semi-Detached
Constructed
1950-1966
+
Certificate History
24 Nov 2011
62
74
Total Floor Area
65 sq m
Current CO2 Emissions Level
3.3
Potential CO2 Emissions Level
2.0
CO2 per sq m per Year
50
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
1
Address
76 Thirlmere Avenue
Date
2 Nov 2023
Current
Potential
68
73
Property Type
Maisonette
Built Form
Semi-Detached
Constructed
1950-1966
+
Certificate History
2 Nov 2023
68
73
1 Apr 2013
63
75
Total Floor Area
62 sq m
Current CO2 Emissions Level
2.5
Potential CO2 Emissions Level
2.0
CO2 per sq m per Year
41
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
78 Thirlmere Avenue
Date
16 Jan 2015
Current
Potential
79
79
Property Type
Maisonette
Built Form
Semi-Detached
Constructed
1950-1966
+
Certificate History
16 Jan 2015
79
79
10 Dec 2014
68
75
14 Jul 2013
66
77
Total Floor Area
56 sq m
Current CO2 Emissions Level
1.2
Potential CO2 Emissions Level
1.2
CO2 per sq m per Year
22
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
80 Thirlmere Avenue
Date
19 Apr 2015
Current
Potential
69
76
Property Type
Maisonette
Built Form
Semi-Detached
Constructed
1950-1966
+
Certificate History
19 Apr 2015
69
76
21 Jan 2015
70
77
5 Jan 2015
71
78
Total Floor Area
62 sq m
Current CO2 Emissions Level
2.4
Potential CO2 Emissions Level
1.7
CO2 per sq m per Year
39
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
84 Thirlmere Avenue
Date
16 Sep 2018
Current
Potential
74
74
Property Type
Flat
Built Form
Semi-Detached
Constructed
1950-1966
+
Certificate History
16 Sep 2018
74
74
Total Floor Area
62 sq m
Current CO2 Emissions Level
1.9
Potential CO2 Emissions Level
1.9
CO2 per sq m per Year
31
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
86 Thirlmere Avenue
Date
10 Jul 2024
Current
Potential
74
76
Property Type
Flat
Built Form
Semi-Detached
Constructed
1950-1966
+
Certificate History
10 Jul 2024
74
76
Total Floor Area
65 sq m
Current CO2 Emissions Level
2.0
Potential CO2 Emissions Level
1.8
CO2 per sq m per Year
31
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
1
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.