PROPERTY ENERGY EFFICIENCY CERTIFICATE DETAILS
Castletown, PORTLAND, DT5 1BD
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 Castletown, DT5 1BD 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 Castletown, PORTLAND, DT5 1BD
Period Covered:
2008 - 31 January 2025
Address
Inspection Date
Current
Potential
Property Type
Built Form
Constructed
Address
14 Castletown
Date
16 Jan 2012
Current
Potential
40
63
Property Type
House
Built Form
Mid-Terrace
Constructed
before 1900
Certificate History
16 Jan 2012
40
63
Total Floor Area
116 sq m
Current CO2 Emissions Level
8.2
Potential CO2 Emissions Level
4.7
CO2 per sq m per Year
71
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
0
Address
15a Castletown
Date
4 Jun 2024
Current
Potential
61
70
Property Type
Flat
Built Form
End-Terrace
Constructed
1900-1929
Certificate History
4 Jun 2024
61
70
28 Jan 2014
54
72
Total Floor Area
41 sq m
Current CO2 Emissions Level
2.2
Potential CO2 Emissions Level
1.6
CO2 per sq m per Year
55
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
15b Castletown
Date
28 Jan 2014
Current
Potential
56
76
Property Type
Flat
Built Form
Semi-Detached
Constructed
before 1900
Certificate History
28 Jan 2014
56
76
Total Floor Area
45 sq m
Current CO2 Emissions Level
2.9
Potential CO2 Emissions Level
1.3
CO2 per sq m per Year
64
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
22 Castletown
Date
9 Feb 2016
Current
Potential
67
82
Property Type
House
Built Form
Mid-Terrace
Constructed
before 1900
Certificate History
9 Feb 2016
67
82
28 Jan 2009
49
51
Total Floor Area
103 sq m
Current CO2 Emissions Level
3.7
Potential CO2 Emissions Level
1.8
CO2 per sq m per Year
36
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
1
Address
23 Castletown
Date
17 Oct 2018
Current
Potential
60
83
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
17 Oct 2018
60
83
15 Oct 2008
52
54
Total Floor Area
88 sq m
Current CO2 Emissions Level
4.1
Potential CO2 Emissions Level
1.5
CO2 per sq m per Year
46
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
1
Address
25 Castletown
Date
14 Apr 2019
Current
Potential
49
72
Property Type
Maisonette
Built Form
Semi-Detached
Constructed
1930-1949
Certificate History
14 Apr 2019
49
72
30 Apr 2009
52
56
Total Floor Area
126 sq m
Current CO2 Emissions Level
5.4
Potential CO2 Emissions Level
3.0
CO2 per sq m per Year
43
Mains Gas Available
Yes
Habitable Rooms
7
Number of Extensions
0
Address
5a Castletown
Date
29 Mar 2009
Current
Potential
48
63
Property Type
Flat
Built Form
N/A
Constructed
before 1900
Certificate History
29 Mar 2009
48
63
Total Floor Area
37 sq m
Current CO2 Emissions Level
3.5
Potential CO2 Emissions Level
3.1
CO2 per sq m per Year
94
Mains Gas Available
No
Habitable Rooms
2
Number of Extensions
2
Address
6 Castletown
Date
14 Jul 2019
Current
Potential
66
74
Property Type
Maisonette
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
14 Jul 2019
66
74
15 Mar 2019
37
75
Total Floor Area
97 sq m
Current CO2 Emissions Level
3.6
Potential CO2 Emissions Level
2.6
CO2 per sq m per Year
37
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
1
Address
7a Castletown
Date
19 Dec 2023
Current
Potential
81
82
Property Type
Maisonette
Built Form
Mid-Terrace
Constructed
2007-2011
Certificate History
19 Dec 2023
81
82
Total Floor Area
133 sq m
Current CO2 Emissions Level
2.4
Potential CO2 Emissions Level
2.2
CO2 per sq m per Year
18
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
9a Castletown
Date
15 Nov 2019
Current
Potential
66
77
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
15 Nov 2019
66
77
18 Mar 2015
55
71
Total Floor Area
44 sq m
Current CO2 Emissions Level
2.0
Potential CO2 Emissions Level
1.2
CO2 per sq m per Year
45
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
9A CASTLETOWN, PORTLAND
Date
16 Mar 2021
Current
Potential
74
77
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
16 Mar 2021
74
77
Total Floor Area
40 sq m
Current CO2 Emissions Level
1.3
Potential CO2 Emissions Level
1.0
CO2 per sq m per Year
31
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
9b Castletown
Date
11 Sep 2019
Current
Potential
64
77
Property Type
Flat
Built Form
Mid-Terrace
Constructed
before 1900
Certificate History
11 Sep 2019
64
77
18 Mar 2015
55
81
Total Floor Area
39 sq m
Current CO2 Emissions Level
1.9
Potential CO2 Emissions Level
1.1
CO2 per sq m per Year
50
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
9B CASTLETOWN, PORTLAND
Date
16 Mar 2021
Current
Potential
74
78
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
16 Mar 2021
74
78
Total Floor Area
42 sq m
Current CO2 Emissions Level
1.3
Potential CO2 Emissions Level
1.0
CO2 per sq m per Year
30
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
Barbary House, Castletown
Date
24 Aug 2009
Current
Potential
66
73
Property Type
House
Built Form
Detached
Constructed
1996-2002
Certificate History
24 Aug 2009
66
73
Total Floor Area
117 sq m
Current CO2 Emissions Level
5.7
Potential CO2 Emissions Level
4.6
CO2 per sq m per Year
37
Mains Gas Available
Yes
Habitable Rooms
7
Number of Extensions
1
Address
Chandlers Nook, 7 Castletown
Date
10 Jun 2024
Current
Potential
56
80
Property Type
Flat
Built Form
Mid-Terrace
Constructed
before 1900
Certificate History
10 Jun 2024
56
80
Total Floor Area
43 sq m
Current CO2 Emissions Level
2.2
Potential CO2 Emissions Level
1.9
CO2 per sq m per Year
51
Mains Gas Available
No
Habitable Rooms
1
Number of Extensions
1
Address
FLAT 1, 8 CASTLETOWN
Date
14 Mar 2021
Current
Potential
53
83
Property Type
Flat
Built Form
Mid-Terrace
Constructed
before 1900
Certificate History
14 Mar 2021
53
83
Total Floor Area
113 sq m
Current CO2 Emissions Level
5.1
Potential CO2 Emissions Level
3.2
CO2 per sq m per Year
45
Mains Gas Available
No
Habitable Rooms
5
Number of Extensions
0
Address
FLAT 1, 9 CASTLETOWN
Date
25 Jul 2021
Current
Potential
75
81
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
25 Jul 2021
75
81
Total Floor Area
77 sq m
Current CO2 Emissions Level
2.0
Potential CO2 Emissions Level
1.3
CO2 per sq m per Year
26
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
1
Address
Flat 2, 10, Castletown
Date
11 Nov 2019
Current
Potential
63
75
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
11 Nov 2019
63
75
24 Nov 2009
60
67
Total Floor Area
110 sq m
Current CO2 Emissions Level
3.5
Potential CO2 Emissions Level
2.1
CO2 per sq m per Year
32
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
2
Address
FLAT 2, 8 CASTLETOWN
Date
14 Mar 2021
Current
Potential
17
55
Property Type
Flat
Built Form
Mid-Terrace
Constructed
before 1900
Certificate History
14 Mar 2021
17
55
Total Floor Area
110 sq m
Current CO2 Emissions Level
10.0
Potential CO2 Emissions Level
8.9
CO2 per sq m per Year
92
Mains Gas Available
No
Habitable Rooms
5
Number of Extensions
0
Address
Flat 2, 8, Castletown
Date
4 Feb 2009
Current
Potential
14
26
Property Type
Flat
Built Form
Detached
Constructed
before 1900
Certificate History
4 Feb 2009
14
26
Total Floor Area
103 sq m
Current CO2 Emissions Level
13.0
Potential CO2 Emissions Level
12.0
CO2 per sq m per Year
128
Mains Gas Available
No
Habitable Rooms
5
Number of Extensions
0
Address
FLAT 2, 9 CASTLETOWN
Date
16 Mar 2021
Current
Potential
70
82
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
16 Mar 2021
70
82
Total Floor Area
78 sq m
Current CO2 Emissions Level
2.6
Potential CO2 Emissions Level
1.3
CO2 per sq m per Year
33
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
Flat 2, 9, Castletown
Date
18 Mar 2015
Current
Potential
70
82
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
18 Mar 2015
70
82
Total Floor Area
78 sq m
Current CO2 Emissions Level
2.6
Potential CO2 Emissions Level
1.3
CO2 per sq m per Year
33
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
Flat 3, 10, Castletown
Date
11 Nov 2019
Current
Potential
72
79
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
11 Nov 2019
72
79
Total Floor Area
53 sq m
Current CO2 Emissions Level
1.4
Potential CO2 Emissions Level
0.8
CO2 per sq m per Year
27
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
Flat 3, 9, Castletown
Date
18 Oct 2018
Current
Potential
74
80
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1976-1982
Certificate History
18 Oct 2018
74
80
Total Floor Area
76 sq m
Current CO2 Emissions Level
2.0
Potential CO2 Emissions Level
1.4
CO2 per sq m per Year
27
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
Flat 4, 10, Castletown
Date
11 Nov 2019
Current
Potential
72
80
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
11 Nov 2019
72
80
28 Jan 2010
70
76
Total Floor Area
53 sq m
Current CO2 Emissions Level
1.3
Potential CO2 Emissions Level
0.7
CO2 per sq m per Year
25
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
FLAT 4, 9 CASTLETOWN
Date
27 Apr 2021
Current
Potential
74
80
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
27 Apr 2021
74
80
24 Mar 2021
74
80
Total Floor Area
76 sq m
Current CO2 Emissions Level
2.0
Potential CO2 Emissions Level
1.4
CO2 per sq m per Year
27
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
Flat 4, 9, Castletown
Date
19 Nov 2019
Current
Potential
58
78
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
19 Nov 2019
58
78
18 Mar 2015
58
80
Total Floor Area
74 sq m
Current CO2 Emissions Level
3.7
Potential CO2 Emissions Level
1.7
CO2 per sq m per Year
50
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
Flat 5, 10, Castletown
Date
11 Nov 2019
Current
Potential
70
78
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
11 Nov 2019
70
78
Total Floor Area
52 sq m
Current CO2 Emissions Level
1.5
Potential CO2 Emissions Level
0.9
CO2 per sq m per Year
29
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
Flat 6, 10, Castletown
Date
11 Nov 2019
Current
Potential
73
79
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
11 Nov 2019
73
79
24 Nov 2009
72
79
Total Floor Area
53 sq m
Current CO2 Emissions Level
1.3
Potential CO2 Emissions Level
0.8
CO2 per sq m per Year
25
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
Ground Floor Flat, 6 Castletown
Date
6 Nov 2008
Current
Potential
46
70
Property Type
Flat
Built Form
N/A
Constructed
1900-1929
Certificate History
6 Nov 2008
46
70
Total Floor Area
39 sq m
Current CO2 Emissions Level
3.3
Potential CO2 Emissions Level
2.6
CO2 per sq m per Year
83
Mains Gas Available
No
Habitable Rooms
2
Number of Extensions
1
Address
Groves House Castletown
Date
23 Feb 2023
Current
Potential
63
78
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
23 Feb 2023
63
78
14 Sep 2022
73
79
Total Floor Area
180 sq m
Current CO2 Emissions Level
5.4
Potential CO2 Emissions Level
3.0
CO2 per sq m per Year
30
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
1
Address
Maisonette, 6 Castletown
Date
6 Nov 2008
Current
Potential
43
59
Property Type
Maisonette
Built Form
N/A
Constructed
1900-1929
Certificate History
6 Nov 2008
43
59
Total Floor Area
87 sq m
Current CO2 Emissions Level
6.0
Potential CO2 Emissions Level
5.3
CO2 per sq m per Year
69
Mains Gas Available
No
Habitable Rooms
3
Number of Extensions
1
Address
Riggers Retreat
Date
10 Jun 2024
Current
Potential
60
82
Property Type
Flat
Built Form
Mid-Terrace
Constructed
before 1900
Certificate History
10 Jun 2024
60
82
Total Floor Area
40 sq m
Current CO2 Emissions Level
1.9
Potential CO2 Emissions Level
1.6
CO2 per sq m per Year
48
Mains Gas Available
No
Habitable Rooms
2
Number of Extensions
1
Address
The Coach House, Castletown
Date
2 Sep 2013
Current
Potential
84
91
Property Type
House
Built Form
Detached
Constructed
N/A
Certificate History
2 Sep 2013
84
91
Total Floor Area
175 sq m
Current CO2 Emissions Level
2.4
Potential CO2 Emissions Level
1.0
CO2 per sq m per Year
14
Mains Gas Available
No
Habitable Rooms
0
Number of Extensions
0
Address
The Customs House, Castletown
Date
29 Oct 2008
Current
Potential
30
31
Property Type
Bungalow
Built Form
Detached
Constructed
1900-1929
Certificate History
29 Oct 2008
30
31
Total Floor Area
175 sq m
Current CO2 Emissions Level
14.0
Potential CO2 Emissions Level
14.0
CO2 per sq m per Year
87
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
2
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.