PROPERTY ENERGY EFFICIENCY CERTIFICATE DETAILS
Crookhams, WELWYN GARDEN CITY, AL7 1PG
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 Crookhams, AL7 1PG 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 Crookhams, WELWYN GARDEN CITY, AL7 1PG
Period Covered:
2008 - 31 January 2025
Address
Inspection Date
Current
Potential
Property Type
Built Form
Constructed
Address
11 Crookhams
Date
25 Feb 2022
Current
Potential
72
85
Property Type
House
Built Form
End-Terrace
Constructed
1950-1966
Certificate History
25 Feb 2022
72
85
Total Floor Area
91 sq m
Current CO2 Emissions Level
2.9
Potential CO2 Emissions Level
1.6
CO2 per sq m per Year
32
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
15 Crookhams
Date
22 Nov 2024
Current
Potential
67
86
Property Type
Bungalow
Built Form
Detached
Constructed
1950-1966
Certificate History
22 Nov 2024
67
86
Total Floor Area
47 sq m
Current CO2 Emissions Level
2.3
Potential CO2 Emissions Level
0.8
CO2 per sq m per Year
48
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
17 Crookhams
Date
22 Nov 2024
Current
Potential
68
87
Property Type
Bungalow
Built Form
Semi-Detached
Constructed
1950-1966
Certificate History
22 Nov 2024
68
87
Total Floor Area
47 sq m
Current CO2 Emissions Level
2.2
Potential CO2 Emissions Level
0.8
CO2 per sq m per Year
46
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
19 Crookhams
Date
22 Nov 2024
Current
Potential
66
85
Property Type
Bungalow
Built Form
Semi-Detached
Constructed
1950-1966
Certificate History
22 Nov 2024
66
85
Total Floor Area
47 sq m
Current CO2 Emissions Level
2.2
Potential CO2 Emissions Level
0.8
CO2 per sq m per Year
47
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
21 Crookhams
Date
22 Nov 2024
Current
Potential
70
88
Property Type
Bungalow
Built Form
Semi-Detached
Constructed
1950-1966
Certificate History
22 Nov 2024
70
88
8 Apr 2011
66
76
25 Mar 2022
70
89
Total Floor Area
49 sq m
Current CO2 Emissions Level
2.1
Potential CO2 Emissions Level
0.7
CO2 per sq m per Year
42
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
23 Crookhams
Date
22 Nov 2024
Current
Potential
70
88
Property Type
Bungalow
Built Form
Semi-Detached
Constructed
1950-1966
Certificate History
22 Nov 2024
70
88
8 Nov 2008
68
73
Total Floor Area
47 sq m
Current CO2 Emissions Level
2.0
Potential CO2 Emissions Level
0.7
CO2 per sq m per Year
43
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
25 Crookhams
Date
8 Dec 2023
Current
Potential
69
88
Property Type
Bungalow
Built Form
End-Terrace
Constructed
1950-1966
Certificate History
8 Dec 2023
69
88
24 Oct 2013
63
86
Total Floor Area
47 sq m
Current CO2 Emissions Level
2.1
Potential CO2 Emissions Level
0.7
CO2 per sq m per Year
44
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
27 Crookhams
Date
22 Nov 2024
Current
Potential
68
87
Property Type
Bungalow
Built Form
Detached
Constructed
1950-1966
Certificate History
22 Nov 2024
68
87
5 Nov 2018
68
87
Total Floor Area
47 sq m
Current CO2 Emissions Level
2.2
Potential CO2 Emissions Level
0.8
CO2 per sq m per Year
46
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
29 CROOKHAMS
Date
24 May 2021
Current
Potential
67
89
Property Type
Bungalow
Built Form
Mid-Terrace
Constructed
1950-1966
Certificate History
24 May 2021
67
89
Total Floor Area
40 sq m
Current CO2 Emissions Level
2.0
Potential CO2 Emissions Level
0.5
CO2 per sq m per Year
51
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
3 Crookhams
Date
27 Apr 2022
Current
Potential
77
87
Property Type
House
Built Form
Mid-Terrace
Constructed
1967-1975
Certificate History
27 Apr 2022
77
87
Total Floor Area
123 sq m
Current CO2 Emissions Level
3.1
Potential CO2 Emissions Level
1.7
CO2 per sq m per Year
25
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
1
Address
31 Crookhams
Date
22 Nov 2024
Current
Potential
69
88
Property Type
Bungalow
Built Form
Semi-Detached
Constructed
1950-1966
Certificate History
22 Nov 2024
69
88
12 Sep 2011
64
71
Total Floor Area
47 sq m
Current CO2 Emissions Level
2.0
Potential CO2 Emissions Level
0.7
CO2 per sq m per Year
44
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
33 Crookhams
Date
22 Nov 2024
Current
Potential
86
90
Property Type
Bungalow
Built Form
Semi-Detached
Constructed
1950-1966
Certificate History
22 Nov 2024
86
90
16 Jun 2022
82
86
Total Floor Area
47 sq m
Current CO2 Emissions Level
0.9
Potential CO2 Emissions Level
0.6
CO2 per sq m per Year
20
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
35 Crookhams
Date
22 Nov 2024
Current
Potential
69
88
Property Type
Bungalow
Built Form
Semi-Detached
Constructed
1950-1966
Certificate History
22 Nov 2024
69
88
17 Jun 2009
70
73
20 Jul 2022
71
89
Total Floor Area
47 sq m
Current CO2 Emissions Level
2.0
Potential CO2 Emissions Level
0.7
CO2 per sq m per Year
43
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
37 Crookhams
Date
22 Nov 2024
Current
Potential
85
89
Property Type
Bungalow
Built Form
Semi-Detached
Constructed
1950-1966
Certificate History
22 Nov 2024
85
89
Total Floor Area
47 sq m
Current CO2 Emissions Level
1.0
Potential CO2 Emissions Level
0.6
CO2 per sq m per Year
21
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
39 Crookhams
Date
22 Nov 2024
Current
Potential
70
88
Property Type
Bungalow
Built Form
Semi-Detached
Constructed
1950-1966
Certificate History
22 Nov 2024
70
88
16 Apr 2015
68
88
Total Floor Area
47 sq m
Current CO2 Emissions Level
2.0
Potential CO2 Emissions Level
0.7
CO2 per sq m per Year
43
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
41 Crookhams
Date
22 Nov 2024
Current
Potential
69
88
Property Type
Bungalow
Built Form
Detached
Constructed
1950-1966
Certificate History
22 Nov 2024
69
88
24 Apr 2010
63
71
Total Floor Area
47 sq m
Current CO2 Emissions Level
2.1
Potential CO2 Emissions Level
0.7
CO2 per sq m per Year
45
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
41 CROOKHAMS, WELWYN GARDEN CITY
Date
4 May 2022
Current
Potential
67
87
Property Type
Bungalow
Built Form
End-Terrace
Constructed
1950-1966
Certificate History
4 May 2022
67
87
23 Feb 2021
67
86
Total Floor Area
44 sq m
Current CO2 Emissions Level
2.1
Potential CO2 Emissions Level
0.7
CO2 per sq m per Year
48
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
43 Crookhams
Date
22 Nov 2024
Current
Potential
68
87
Property Type
Bungalow
Built Form
Detached
Constructed
1950-1966
Certificate History
22 Nov 2024
68
87
Total Floor Area
47 sq m
Current CO2 Emissions Level
2.2
Potential CO2 Emissions Level
0.8
CO2 per sq m per Year
46
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
45 Crookhams
Date
22 Nov 2024
Current
Potential
69
89
Property Type
Bungalow
Built Form
Semi-Detached
Constructed
1950-1966
Certificate History
22 Nov 2024
69
89
2 Sep 2017
69
90
Total Floor Area
47 sq m
Current CO2 Emissions Level
2.1
Potential CO2 Emissions Level
0.6
CO2 per sq m per Year
45
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
47 Crookhams
Date
22 Nov 2024
Current
Potential
69
89
Property Type
Bungalow
Built Form
Semi-Detached
Constructed
1950-1966
Certificate History
22 Nov 2024
69
89
27 Jul 2010
68
75
Total Floor Area
47 sq m
Current CO2 Emissions Level
2.1
Potential CO2 Emissions Level
0.6
CO2 per sq m per Year
44
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
47 CROOKHAMS, WELWYN GARDEN CITY
Date
5 Mar 2021
Current
Potential
69
89
Property Type
Bungalow
Built Form
Mid-Terrace
Constructed
1950-1966
Certificate History
5 Mar 2021
69
89
Total Floor Area
43 sq m
Current CO2 Emissions Level
2.0
Potential CO2 Emissions Level
0.5
CO2 per sq m per Year
46
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
49 Crookhams
Date
22 Nov 2024
Current
Potential
69
88
Property Type
Bungalow
Built Form
Semi-Detached
Constructed
1950-1966
Certificate History
22 Nov 2024
69
88
Total Floor Area
47 sq m
Current CO2 Emissions Level
2.0
Potential CO2 Emissions Level
0.7
CO2 per sq m per Year
43
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
51 Crookhams
Date
4 May 2016
Current
Potential
68
91
Property Type
Bungalow
Built Form
Mid-Terrace
Constructed
1950-1966
Certificate History
4 May 2016
68
91
23 Feb 2009
66
74
Total Floor Area
37 sq m
Current CO2 Emissions Level
1.8
Potential CO2 Emissions Level
0.3
CO2 per sq m per Year
49
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
53 Crookhams
Date
22 Nov 2024
Current
Potential
68
88
Property Type
Bungalow
Built Form
Detached
Constructed
1950-1966
Certificate History
22 Nov 2024
68
88
Total Floor Area
47 sq m
Current CO2 Emissions Level
2.2
Potential CO2 Emissions Level
0.7
CO2 per sq m per Year
47
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
57 CROOKHAMS, WELWYN GARDEN CITY
Date
25 Apr 2021
Current
Potential
63
79
Property Type
House
Built Form
Semi-Detached
Constructed
1950-1966
Certificate History
25 Apr 2021
63
79
Total Floor Area
129 sq m
Current CO2 Emissions Level
5.7
Potential CO2 Emissions Level
3.2
CO2 per sq m per Year
44
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
2
Address
59 Crookhams
Date
9 Feb 2022
Current
Potential
69
82
Property Type
House
Built Form
Semi-Detached
Constructed
1950-1966
Certificate History
9 Feb 2022
69
82
Total Floor Area
82 sq m
Current CO2 Emissions Level
3.1
Potential CO2 Emissions Level
1.7
CO2 per sq m per Year
38
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
61 Crookhams
Date
20 Jun 2018
Current
Potential
66
79
Property Type
House
Built Form
Semi-Detached
Constructed
1950-1966
Certificate History
20 Jun 2018
66
79
Total Floor Area
87 sq m
Current CO2 Emissions Level
3.4
Potential CO2 Emissions Level
2.0
CO2 per sq m per Year
39
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
1
Address
61 CROOKHAMS, WELWYN GARDEN CITY
Date
4 May 2021
Current
Potential
68
82
Property Type
House
Built Form
Semi-Detached
Constructed
1950-1966
Certificate History
4 May 2021
68
82
Total Floor Area
86 sq m
Current CO2 Emissions Level
3.4
Potential CO2 Emissions Level
1.9
CO2 per sq m per Year
39
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
1
Address
7 Crookhams
Date
22 Nov 2024
Current
Potential
72
86
Property Type
House
Built Form
Mid-Terrace
Constructed
1950-1966
Certificate History
22 Nov 2024
72
86
Total Floor Area
94 sq m
Current CO2 Emissions Level
3.0
Potential CO2 Emissions Level
1.5
CO2 per sq m per Year
32
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
0
Address
9 Crookhams
Date
22 Nov 2024
Current
Potential
72
85
Property Type
House
Built Form
Mid-Terrace
Constructed
1950-1966
Certificate History
22 Nov 2024
72
85
Total Floor Area
96 sq m
Current CO2 Emissions Level
3.2
Potential CO2 Emissions Level
1.6
CO2 per sq m per Year
33
Mains Gas Available
Yes
Habitable Rooms
6
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.