PROPERTY ENERGY EFFICIENCY CERTIFICATE DETAILS
St. Marys Court, Ottway Walk, WELWYN, AL6 9AU
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 St. Marys Court, Ottway Walk, AL6 9AU 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 St. Marys Court, Ottway Walk, WELWYN, AL6 9AU
Period Covered:
2008 - 31 October 2024
Address
Inspection Date
Current
Potential
Property Type
Built Form
Constructed
Address
1 St. Marys Court, Ottway Walk
Date
4 Sep 2022
Current
Potential
75
76
Property Type
Flat
Built Form
Semi-Detached
Constructed
1996-2002
Certificate History
4 Sep 2022
75
76
Total Floor Area
48 sq m
Current CO2 Emissions Level
1.6
Potential CO2 Emissions Level
1.4
CO2 per sq m per Year
32
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
10 St. Marys Court, Ottway Walk
Date
3 Dec 2010
Current
Potential
47
62
Property Type
House
Built Form
Semi-Detached
Constructed
before 1900
Certificate History
3 Dec 2010
47
62
Total Floor Area
108 sq m
Current CO2 Emissions Level
6.6
Potential CO2 Emissions Level
4.8
CO2 per sq m per Year
69
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
11 St. Marys Court, Ottway Walk
Date
16 May 2023
Current
Potential
69
89
Property Type
House
Built Form
End-Terrace
Constructed
1967-1975
Certificate History
16 May 2023
69
89
Total Floor Area
70 sq m
Current CO2 Emissions Level
2.8
Potential CO2 Emissions Level
0.8
CO2 per sq m per Year
40
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
12 St. Marys Court, Ottway Walk
Date
10 Jun 2014
Current
Potential
66
91
Property Type
House
Built Form
Mid-Terrace
Constructed
1983-1990
Certificate History
10 Jun 2014
66
91
Total Floor Area
52 sq m
Current CO2 Emissions Level
2.4
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
13 St. Marys Court, Ottway Walk
Date
8 Oct 2008
Current
Potential
66
75
Property Type
House
Built Form
Mid-Terrace
Constructed
1983-1990
Certificate History
8 Oct 2008
66
75
Total Floor Area
52 sq m
Current CO2 Emissions Level
2.6
Potential CO2 Emissions Level
1.9
CO2 per sq m per Year
51
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
14 ST MARYS COURT, WELWYN
Date
26 Nov 2020
Current
Potential
68
84
Property Type
House
Built Form
End-Terrace
Constructed
1991-1995
Certificate History
26 Nov 2020
68
84
Total Floor Area
74 sq m
Current CO2 Emissions Level
2.8
Potential CO2 Emissions Level
1.3
CO2 per sq m per Year
38
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
15 St. Marys Court, Ottway Walk
Date
1 Feb 2020
Current
Potential
72
76
Property Type
Flat
Built Form
Semi-Detached
Constructed
1983-1990
Certificate History
1 Feb 2020
72
76
Total Floor Area
55 sq m
Current CO2 Emissions Level
1.9
Potential CO2 Emissions Level
1.6
CO2 per sq m per Year
34
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
16 St. Marys Court, Ottway Walk
Date
4 Aug 2019
Current
Potential
67
82
Property Type
House
Built Form
Semi-Detached
Constructed
1983-1990
Certificate History
4 Aug 2019
67
82
Total Floor Area
93 sq m
Current CO2 Emissions Level
3.6
Potential CO2 Emissions Level
2.0
CO2 per sq m per Year
39
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
17 ST. MARYS COURT, OTTWAY WALK
Date
18 May 2021
Current
Potential
77
77
Property Type
Maisonette
Built Form
End-Terrace
Constructed
1983-1990
Certificate History
18 May 2021
77
77
Total Floor Area
59 sq m
Current CO2 Emissions Level
1.6
Potential CO2 Emissions Level
1.6
CO2 per sq m per Year
27
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
18 St. Marys Court, Ottway Walk
Date
20 Jan 2011
Current
Potential
74
75
Property Type
House
Built Form
Semi-Detached
Constructed
1983-1990
Certificate History
20 Jan 2011
74
75
Total Floor Area
104 sq m
Current CO2 Emissions Level
3.0
Potential CO2 Emissions Level
2.9
CO2 per sq m per Year
33
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
2 St. Marys Court, Ottway Walk
Date
17 Mar 2017
Current
Potential
66
75
Property Type
Maisonette
Built Form
End-Terrace
Constructed
1983-1990
Certificate History
17 Mar 2017
66
75
Total Floor Area
50 sq m
Current CO2 Emissions Level
2.5
Potential CO2 Emissions Level
1.6
CO2 per sq m per Year
50
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
20 St. Marys Court, Ottway Walk
Date
18 Dec 2012
Current
Potential
63
85
Property Type
House
Built Form
End-Terrace
Constructed
1983-1990
Certificate History
18 Dec 2012
63
85
Total Floor Area
87 sq m
Current CO2 Emissions Level
3.7
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
21 St. Marys Court, Ottway Walk
Date
21 Jul 2022
Current
Potential
64
84
Property Type
House
Built Form
End-Terrace
Constructed
1983-1990
Certificate History
21 Jul 2022
64
84
21 Jan 2009
61
71
Total Floor Area
86 sq m
Current CO2 Emissions Level
3.7
Potential CO2 Emissions Level
1.4
CO2 per sq m per Year
42
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
22 St. Marys Court, Ottway Walk
Date
6 Dec 2013
Current
Potential
66
88
Property Type
House
Built Form
Mid-Terrace
Constructed
1983-1990
Certificate History
6 Dec 2013
66
88
Total Floor Area
86 sq m
Current CO2 Emissions Level
3.3
Potential CO2 Emissions Level
0.9
CO2 per sq m per Year
39
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
23 St. Marys Court, Ottway Walk
Date
7 Jul 2023
Current
Potential
73
86
Property Type
House
Built Form
Mid-Terrace
Constructed
1983-1990
Certificate History
7 Jul 2023
73
86
8 Jul 2012
70
86
Total Floor Area
81 sq m
Current CO2 Emissions Level
2.6
Potential CO2 Emissions Level
1.3
CO2 per sq m per Year
32
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
24 St. Marys Court, Ottway Walk
Date
22 Aug 2010
Current
Potential
66
75
Property Type
House
Built Form
End-Terrace
Constructed
1983-1990
Certificate History
22 Aug 2010
66
75
Total Floor Area
100 sq m
Current CO2 Emissions Level
3.9
Potential CO2 Emissions Level
2.8
CO2 per sq m per Year
44
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
25 St. Marys Court, Ottway Walk
Date
17 Jan 2013
Current
Potential
67
86
Property Type
House
Built Form
End-Terrace
Constructed
1983-1990
Certificate History
17 Jan 2013
67
86
Total Floor Area
85 sq m
Current CO2 Emissions Level
3.2
Potential CO2 Emissions Level
1.1
CO2 per sq m per Year
38
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
27 St. Marys Court, Ottway Walk
Date
13 Jun 2018
Current
Potential
71
83
Property Type
House
Built Form
Mid-Terrace
Constructed
1983-1990
Certificate History
13 Jun 2018
71
83
Total Floor Area
86 sq m
Current CO2 Emissions Level
2.7
Potential CO2 Emissions Level
1.5
CO2 per sq m per Year
32
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
28 St. Marys Court, Ottway Walk
Date
14 Jun 2011
Current
Potential
64
71
Property Type
House
Built Form
End-Terrace
Constructed
1991-1995
Certificate History
14 Jun 2011
64
71
Total Floor Area
84 sq m
Current CO2 Emissions Level
3.7
Potential CO2 Emissions Level
2.8
CO2 per sq m per Year
44
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
3 St. Marys Court, Ottway Walk
Date
13 Apr 2016
Current
Potential
71
76
Property Type
Flat
Built Form
Semi-Detached
Constructed
1983-1990
Certificate History
13 Apr 2016
71
76
Total Floor Area
48 sq m
Current CO2 Emissions Level
1.9
Potential CO2 Emissions Level
1.4
CO2 per sq m per Year
40
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
31 St. Marys Court, Ottway Walk
Date
20 Jun 2011
Current
Potential
68
74
Property Type
House
Built Form
Mid-Terrace
Constructed
1983-1990
Certificate History
20 Jun 2011
68
74
Total Floor Area
87 sq m
Current CO2 Emissions Level
3.3
Potential CO2 Emissions Level
2.5
CO2 per sq m per Year
38
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
32 St. Marys Court, Ottway Walk
Date
2 Apr 2012
Current
Potential
64
85
Property Type
House
Built Form
Mid-Terrace
Constructed
1983-1990
Certificate History
2 Apr 2012
64
85
Total Floor Area
86 sq m
Current CO2 Emissions Level
3.6
Potential CO2 Emissions Level
1.3
CO2 per sq m per Year
42
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
33 St. Marys Court, Ottway Walk
Date
4 Aug 2010
Current
Potential
65
76
Property Type
House
Built Form
End-Terrace
Constructed
1983-1990
Certificate History
4 Aug 2010
65
76
Total Floor Area
100 sq m
Current CO2 Emissions Level
3.9
Potential CO2 Emissions Level
2.7
CO2 per sq m per Year
45
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
35 St. Marys Court, Ottway Walk
Date
19 Jun 2016
Current
Potential
75
77
Property Type
Flat
Built Form
End-Terrace
Constructed
1991-1995
Certificate History
19 Jun 2016
75
77
Total Floor Area
59 sq m
Current CO2 Emissions Level
1.8
Potential CO2 Emissions Level
1.6
CO2 per sq m per Year
30
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
36 St. Marys Court, Ottway Walk
Date
26 Apr 2017
Current
Potential
72
76
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1991-1995
Certificate History
26 Apr 2017
72
76
Total Floor Area
47 sq m
Current CO2 Emissions Level
1.7
Potential CO2 Emissions Level
1.4
CO2 per sq m per Year
37
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
1
Address
37 St. Marys Court, Ottway Walk
Date
6 Jan 2011
Current
Potential
66
75
Property Type
Flat
Built Form
Detached
Constructed
1983-1990
Certificate History
6 Jan 2011
66
75
Total Floor Area
58 sq m
Current CO2 Emissions Level
2.9
Potential CO2 Emissions Level
2.0
CO2 per sq m per Year
59
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
38 St. Marys Court, Ottway Walk
Date
13 Jul 2009
Current
Potential
70
79
Property Type
Flat
Built Form
Semi-Detached
Constructed
1991-1995
Certificate History
13 Jul 2009
70
79
Total Floor Area
60 sq m
Current CO2 Emissions Level
2.7
Potential CO2 Emissions Level
1.9
CO2 per sq m per Year
45
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
4 St. Marys Court, Ottway Walk
Date
22 Mar 2019
Current
Potential
76
76
Property Type
Maisonette
Built Form
Semi-Detached
Constructed
1991-1995
Certificate History
22 Mar 2019
76
76
Total Floor Area
51 sq m
Current CO2 Emissions Level
1.5
Potential CO2 Emissions Level
1.5
CO2 per sq m per Year
30
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
5 St. Marys Court, Ottway Walk
Date
2 May 2023
Current
Potential
66
83
Property Type
House
Built Form
End-Terrace
Constructed
1983-1990
Certificate History
2 May 2023
66
83
Total Floor Area
74 sq m
Current CO2 Emissions Level
3.0
Potential CO2 Emissions Level
1.4
CO2 per sq m per Year
40
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
6 ST. MARYS COURT, OTTWAY WALK
Date
3 Aug 2021
Current
Potential
68
85
Property Type
House
Built Form
Mid-Terrace
Constructed
1983-1990
Certificate History
3 Aug 2021
68
85
Total Floor Area
52 sq m
Current CO2 Emissions Level
2.2
Potential CO2 Emissions Level
0.8
CO2 per sq m per Year
41
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
6 St. Marys Court, Ottway Walk
Date
10 Jul 2011
Current
Potential
65
74
Property Type
House
Built Form
Mid-Terrace
Constructed
1983-1990
Certificate History
10 Jul 2011
65
74
Total Floor Area
55 sq m
Current CO2 Emissions Level
2.6
Potential CO2 Emissions Level
1.8
CO2 per sq m per Year
48
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
7 St. Marys Court, Ottway Walk
Date
8 Apr 2009
Current
Potential
67
75
Property Type
House
Built Form
Mid-Terrace
Constructed
1991-1995
Certificate History
8 Apr 2009
67
75
Total Floor Area
28 sq m
Current CO2 Emissions Level
2.5
Potential CO2 Emissions Level
1.8
CO2 per sq m per Year
50
Mains Gas Available
Yes
Habitable Rooms
2
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 2024.