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PROPERTY ENERGY EFFICIENCY CERTIFICATE DETAILS
Windmill Avenue, ST. ALBANS, AL4 9TF

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 Windmill Avenue, AL4 9TF 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 Windmill Avenue, ST. ALBANS, AL4 9TF
Period Covered: 2008 - 31 January 2025

Address
Inspection Date
Current
Potential
Property Type
Built Form
Constructed
Address
10 Windmill Avenue
Date
5 Sep 2017
Current
Potential
63
80
Property Type
House
Built Form
Semi-Detached
Constructed
1950-1966
+
Certificate History
5 Sep 2017
63
80
8 Apr 2010
61
64
8 Apr 2010
62
64
Total Floor Area
122 sq m
Current CO2 Emissions Level
5.3
Potential CO2 Emissions Level
2.8
CO2 per sq m per Year
43
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
3
Address
14 Windmill Avenue
Date
12 Jul 2016
Current
Potential
56
89
Property Type
House
Built Form
Semi-Detached
Constructed
1950-1966
+
Certificate History
12 Jul 2016
56
89
Total Floor Area
93 sq m
Current CO2 Emissions Level
5.3
Potential CO2 Emissions Level
1.1
CO2 per sq m per Year
57
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
16 Windmill Avenue
Date
18 Apr 2023
Current
Potential
68
82
Property Type
House
Built Form
Semi-Detached
Constructed
1950-1966
+
Certificate History
18 Apr 2023
68
82
Total Floor Area
121 sq m
Current CO2 Emissions Level
4.4
Potential CO2 Emissions Level
2.5
CO2 per sq m per Year
36
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
18 Windmill Avenue
Date
9 Apr 2015
Current
Potential
59
85
Property Type
Bungalow
Built Form
Semi-Detached
Constructed
1950-1966
+
Certificate History
9 Apr 2015
59
85
Total Floor Area
89 sq m
Current CO2 Emissions Level
4.7
Potential CO2 Emissions Level
1.5
CO2 per sq m per Year
53
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
2 Windmill Avenue
Date
15 Oct 2023
Current
Potential
63
80
Property Type
House
Built Form
Semi-Detached
Constructed
1950-1966
+
Certificate History
15 Oct 2023
63
80
Total Floor Area
143 sq m
Current CO2 Emissions Level
6.1
Potential CO2 Emissions Level
3.2
CO2 per sq m per Year
43
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
3
Address
20 Windmill Avenue
Date
16 Apr 2018
Current
Potential
42
77
Property Type
House
Built Form
Semi-Detached
Constructed
1950-1966
+
Certificate History
16 Apr 2018
42
77
Total Floor Area
108 sq m
Current CO2 Emissions Level
8.0
Potential CO2 Emissions Level
3.0
CO2 per sq m per Year
74
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
1
Address
22 Windmill Avenue
Date
31 May 2011
Current
Potential
66
71
Property Type
House
Built Form
Semi-Detached
Constructed
1950-1966
+
Certificate History
31 May 2011
66
71
Total Floor Area
90 sq m
Current CO2 Emissions Level
3.1
Potential CO2 Emissions Level
2.6
CO2 per sq m per Year
40
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
22a Windmill Avenue
Date
7 Aug 2013
Current
Potential
81
81
Property Type
House
Built Form
Detached
Constructed
N/A
+
Certificate History
7 Aug 2013
81
81
Total Floor Area
86 sq m
Current CO2 Emissions Level
1.6
Potential CO2 Emissions Level
1.6
CO2 per sq m per Year
19
Mains Gas Available
No
Habitable Rooms
0
Number of Extensions
0
Address
26 Windmill Avenue
Date
1 Feb 2011
Current
Potential
63
66
Property Type
House
Built Form
Semi-Detached
Constructed
1950-1966
+
Certificate History
1 Feb 2011
63
66
Total Floor Area
84 sq m
Current CO2 Emissions Level
4.3
Potential CO2 Emissions Level
4.1
CO2 per sq m per Year
47
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
0
Address
36 Windmill Avenue
Date
27 Sep 2024
Current
Potential
72
85
Property Type
House
Built Form
Semi-Detached
Constructed
1950-1966
+
Certificate History
27 Sep 2024
72
85
Total Floor Area
99 sq m
Current CO2 Emissions Level
3.2
Potential CO2 Emissions Level
1.7
CO2 per sq m per Year
32
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
1
Address
38 Windmill Avenue
Date
24 Sep 2024
Current
Potential
64
85
Property Type
House
Built Form
Semi-Detached
Constructed
1967-1975
+
Certificate History
24 Sep 2024
64
85
Total Floor Area
94 sq m
Current CO2 Emissions Level
4.2
Potential CO2 Emissions Level
1.6
CO2 per sq m per Year
45
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
40 Windmill Avenue
Date
25 Aug 2020
Current
Potential
52
76
Property Type
House
Built Form
Semi-Detached
Constructed
1950-1966
+
Certificate History
25 Aug 2020
52
76
16 Feb 2010
47
62
Total Floor Area
98 sq m
Current CO2 Emissions Level
5.3
Potential CO2 Emissions Level
2.5
CO2 per sq m per Year
54
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
1
Address
42 Windmill Avenue
Date
3 Aug 2017
Current
Potential
56
85
Property Type
House
Built Form
Semi-Detached
Constructed
1950-1966
+
Certificate History
3 Aug 2017
56
85
Total Floor Area
97 sq m
Current CO2 Emissions Level
4.9
Potential CO2 Emissions Level
1.4
CO2 per sq m per Year
51
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
44 Windmill Avenue
Date
19 Feb 2014
Current
Potential
45
79
Property Type
House
Built Form
Semi-Detached
Constructed
1950-1966
+
Certificate History
19 Feb 2014
45
79
Total Floor Area
87 sq m
Current CO2 Emissions Level
5.8
Potential CO2 Emissions Level
2.0
CO2 per sq m per Year
67
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
48 Windmill Avenue
Date
6 Mar 2018
Current
Potential
57
79
Property Type
House
Built Form
Semi-Detached
Constructed
1950-1966
+
Certificate History
6 Mar 2018
57
79
Total Floor Area
87 sq m
Current CO2 Emissions Level
4.9
Potential CO2 Emissions Level
2.3
CO2 per sq m per Year
56
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
2
Address
50 Windmill Avenue
Date
14 Nov 2014
Current
Potential
55
73
Property Type
House
Built Form
Semi-Detached
Constructed
1950-1966
+
Certificate History
14 Nov 2014
55
73
Total Floor Area
106 sq m
Current CO2 Emissions Level
5.5
Potential CO2 Emissions Level
3.2
CO2 per sq m per Year
52
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
1
Address
52 Windmill Avenue
Date
11 Sep 2024
Current
Potential
59
83
Property Type
House
Built Form
Semi-Detached
Constructed
1950-1966
+
Certificate History
11 Sep 2024
59
83
Total Floor Area
100 sq m
Current CO2 Emissions Level
4.4
Potential CO2 Emissions Level
1.6
CO2 per sq m per Year
45
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
0
Address
6 Windmill Avenue
Date
13 Jun 2022
Current
Potential
71
86
Property Type
House
Built Form
Semi-Detached
Constructed
1991-1995
+
Certificate History
13 Jun 2022
71
86
Total Floor Area
107 sq m
Current CO2 Emissions Level
3.6
Potential CO2 Emissions Level
1.7
CO2 per sq m per Year
33
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
0
Address
60 Windmill Avenue
Date
22 Apr 2009
Current
Potential
66
68
Property Type
House
Built Form
Semi-Detached
Constructed
1950-1966
+
Certificate History
22 Apr 2009
66
68
Total Floor Area
59 sq m
Current CO2 Emissions Level
4.3
Potential CO2 Emissions Level
4.2
CO2 per sq m per Year
40
Mains Gas Available
Yes
Habitable Rooms
7
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.