PROPERTY ENERGY EFFICIENCY CERTIFICATE DETAILS
Four Acres, WELWYN GARDEN CITY, AL7 4NW
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 Four Acres, AL7 4NW 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 Four Acres, WELWYN GARDEN CITY, AL7 4NW
Period Covered:
2008 - 31 January 2025
Address
Inspection Date
Current
Potential
Property Type
Built Form
Constructed
Address
1 Four Acres
Date
6 Jan 2011
Current
Potential
60
68
Property Type
House
Built Form
End-Terrace
Constructed
1930-1949
Certificate History
6 Jan 2011
60
68
Total Floor Area
85 sq m
Current CO2 Emissions Level
4.5
Potential CO2 Emissions Level
3.7
CO2 per sq m per Year
53
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
13 Four Acres
Date
22 Nov 2024
Current
Potential
64
85
Property Type
House
Built Form
End-Terrace
Constructed
1930-1949
Certificate History
22 Nov 2024
64
85
Total Floor Area
83 sq m
Current CO2 Emissions Level
3.8
Potential CO2 Emissions Level
1.4
CO2 per sq m per Year
45
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
14 Four Acres
Date
21 Jun 2011
Current
Potential
68
73
Property Type
Flat
Built Form
End-Terrace
Constructed
1930-1949
Certificate History
21 Jun 2011
68
73
Total Floor Area
35 sq m
Current CO2 Emissions Level
1.8
Potential CO2 Emissions Level
1.4
CO2 per sq m per Year
50
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
14a Four Acres
Date
7 Dec 2012
Current
Potential
60
65
Property Type
Flat
Built Form
End-Terrace
Constructed
1930-1949
Certificate History
7 Dec 2012
60
65
Total Floor Area
42 sq m
Current CO2 Emissions Level
2.5
Potential CO2 Emissions Level
2.1
CO2 per sq m per Year
60
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
15 Four Acres
Date
3 Dec 2009
Current
Potential
49
74
Property Type
House
Built Form
Mid-Terrace
Constructed
1950-1966
Certificate History
3 Dec 2009
49
74
Total Floor Area
76 sq m
Current CO2 Emissions Level
5.5
Potential CO2 Emissions Level
2.7
CO2 per sq m per Year
73
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
16 Four Acres
Date
22 Nov 2024
Current
Potential
66
87
Property Type
House
Built Form
Mid-Terrace
Constructed
1930-1949
Certificate History
22 Nov 2024
66
87
12 Jun 2012
63
79
Total Floor Area
73 sq m
Current CO2 Emissions Level
3.2
Potential CO2 Emissions Level
1.1
CO2 per sq m per Year
44
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
17 Four Acres
Date
22 Nov 2024
Current
Potential
66
87
Property Type
House
Built Form
Mid-Terrace
Constructed
1930-1949
Certificate History
22 Nov 2024
66
87
14 Dec 2021
63
86
Total Floor Area
73 sq m
Current CO2 Emissions Level
3.2
Potential CO2 Emissions Level
1.1
CO2 per sq m per Year
44
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
18 Four Acres
Date
4 Oct 2021
Current
Potential
65
86
Property Type
House
Built Form
Mid-Terrace
Constructed
1967-1975
Certificate History
4 Oct 2021
65
86
24 Jun 2011
60
66
Total Floor Area
71 sq m
Current CO2 Emissions Level
3.3
Potential CO2 Emissions Level
1.1
CO2 per sq m per Year
46
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
19 Four Acres
Date
22 Nov 2024
Current
Potential
66
85
Property Type
House
Built Form
End-Terrace
Constructed
1930-1949
Certificate History
22 Nov 2024
66
85
Total Floor Area
83 sq m
Current CO2 Emissions Level
3.6
Potential CO2 Emissions Level
1.4
CO2 per sq m per Year
43
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
2 Four Acres
Date
18 Sep 2024
Current
Potential
52
84
Property Type
House
Built Form
End-Terrace
Constructed
1950-1966
Certificate History
18 Sep 2024
52
84
16 Oct 2008
70
74
Total Floor Area
88 sq m
Current CO2 Emissions Level
5.5
Potential CO2 Emissions Level
1.6
CO2 per sq m per Year
63
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
20 Four Acres
Date
22 Nov 2024
Current
Potential
66
85
Property Type
House
Built Form
End-Terrace
Constructed
1930-1949
Certificate History
22 Nov 2024
66
85
10 Apr 2014
60
76
24 May 2022
65
85
Total Floor Area
83 sq m
Current CO2 Emissions Level
3.6
Potential CO2 Emissions Level
1.4
CO2 per sq m per Year
43
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
21 Four Acres
Date
20 Jun 2024
Current
Potential
67
87
Property Type
House
Built Form
End-Terrace
Constructed
1930-1949
Certificate History
20 Jun 2024
67
87
18 Oct 2022
66
85
Total Floor Area
82 sq m
Current CO2 Emissions Level
3.4
Potential CO2 Emissions Level
1.2
CO2 per sq m per Year
42
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
22 Four Acres
Date
9 Aug 2010
Current
Potential
62
67
Property Type
House
Built Form
End-Terrace
Constructed
1950-1966
Certificate History
9 Aug 2010
62
67
Total Floor Area
87 sq m
Current CO2 Emissions Level
4.3
Potential CO2 Emissions Level
3.8
CO2 per sq m per Year
50
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
23 Four Acres
Date
22 Nov 2024
Current
Potential
67
89
Property Type
House
Built Form
Mid-Terrace
Constructed
1930-1949
Certificate History
22 Nov 2024
67
89
20 Mar 2020
60
83
28 Oct 2017
65
79
Total Floor Area
61 sq m
Current CO2 Emissions Level
2.6
Potential CO2 Emissions Level
0.7
CO2 per sq m per Year
44
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
24 Four Acres
Date
4 Feb 2023
Current
Potential
67
85
Property Type
House
Built Form
Mid-Terrace
Constructed
1950-1966
Certificate History
4 Feb 2023
67
85
Total Floor Area
123 sq m
Current CO2 Emissions Level
4.7
Potential CO2 Emissions Level
2.0
CO2 per sq m per Year
38
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
1
Address
26 Four Acres
Date
21 Dec 2023
Current
Potential
48
82
Property Type
House
Built Form
Mid-Terrace
Constructed
1950-1966
Certificate History
21 Dec 2023
48
82
Total Floor Area
82 sq m
Current CO2 Emissions Level
5.8
Potential CO2 Emissions Level
1.8
CO2 per sq m per Year
71
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
1
Address
3 Four Acres
Date
11 Mar 2024
Current
Potential
56
84
Property Type
House
Built Form
Mid-Terrace
Constructed
1950-1966
Certificate History
11 Mar 2024
56
84
Total Floor Area
76 sq m
Current CO2 Emissions Level
4.1
Potential CO2 Emissions Level
1.3
CO2 per sq m per Year
54
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
4 Four Acres
Date
22 Nov 2024
Current
Potential
66
87
Property Type
House
Built Form
Mid-Terrace
Constructed
1930-1949
Certificate History
22 Nov 2024
66
87
8 Oct 2012
62
78
Total Floor Area
73 sq m
Current CO2 Emissions Level
3.2
Potential CO2 Emissions Level
1.1
CO2 per sq m per Year
44
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
6 Four Acres
Date
22 Nov 2024
Current
Potential
66
87
Property Type
House
Built Form
Mid-Terrace
Constructed
1930-1949
Certificate History
22 Nov 2024
66
87
Total Floor Area
73 sq m
Current CO2 Emissions Level
3.2
Potential CO2 Emissions Level
1.1
CO2 per sq m per Year
44
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
7 Four Acres
Date
22 Nov 2024
Current
Potential
66
87
Property Type
House
Built Form
End-Terrace
Constructed
1930-1949
Certificate History
22 Nov 2024
66
87
Total Floor Area
74 sq m
Current CO2 Emissions Level
3.2
Potential CO2 Emissions Level
1.1
CO2 per sq m per Year
43
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
9 Four Acres
Date
19 Oct 2014
Current
Potential
64
81
Property Type
House
Built Form
Semi-Detached
Constructed
1930-1949
Certificate History
19 Oct 2014
64
81
Total Floor Area
77 sq m
Current CO2 Emissions Level
3.2
Potential CO2 Emissions Level
1.6
CO2 per sq m per Year
42
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.