PROPERTY ENERGY EFFICIENCY CERTIFICATE DETAILS
Denzil Avenue, SOUTHAMPTON, SO14 0LN
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 Denzil Avenue, SO14 0LN 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 Denzil Avenue, SOUTHAMPTON, SO14 0LN
Period Covered:
2008 - 31 January 2025
Address
Inspection Date
Current
Potential
Property Type
Built Form
Constructed
Address
18 Denzil Avenue
Date
1 Oct 2023
Current
Potential
66
74
Property Type
Flat
Built Form
Enclosed End-Terrace
Constructed
1900-1929
Certificate History
1 Oct 2023
66
74
Total Floor Area
91 sq m
Current CO2 Emissions Level
3.4
Potential CO2 Emissions Level
2.4
CO2 per sq m per Year
38
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
2
Address
18c Denzil Avenue
Date
1 Oct 2023
Current
Potential
76
76
Property Type
Flat
Built Form
Enclosed End-Terrace
Constructed
1900-1929
Certificate History
1 Oct 2023
76
76
Total Floor Area
74 sq m
Current CO2 Emissions Level
1.8
Potential CO2 Emissions Level
1.8
CO2 per sq m per Year
25
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
1
Address
20 Denzil Avenue
Date
6 Apr 2014
Current
Potential
56
76
Property Type
House
Built Form
Semi-Detached
Constructed
1900-1929
Certificate History
6 Apr 2014
56
76
Total Floor Area
166 sq m
Current CO2 Emissions Level
7.0
Potential CO2 Emissions Level
3.6
CO2 per sq m per Year
42
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
1
Address
38 Denzil Avenue
Date
3 Aug 2011
Current
Potential
58
68
Property Type
House
Built Form
Detached
Constructed
1900-1929
Certificate History
3 Aug 2011
58
68
Total Floor Area
180 sq m
Current CO2 Emissions Level
11.0
Potential CO2 Emissions Level
8.1
CO2 per sq m per Year
45
Mains Gas Available
Yes
Habitable Rooms
10
Number of Extensions
2
Address
42b Denzil Avenue
Date
7 Oct 2013
Current
Potential
65
67
Property Type
Flat
Built Form
Semi-Detached
Constructed
1900-1929
Certificate History
7 Oct 2013
65
67
Total Floor Area
62 sq m
Current CO2 Emissions Level
2.6
Potential CO2 Emissions Level
2.5
CO2 per sq m per Year
42
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
1
Address
44 Denzil Avenue
Date
17 Sep 2020
Current
Potential
68
79
Property Type
House
Built Form
Semi-Detached
Constructed
1900-1929
Certificate History
17 Sep 2020
68
79
17 Sep 2020
68
79
22 Nov 2014
54
79
5 Aug 2013
51
62
Total Floor Area
138 sq m
Current CO2 Emissions Level
4.3
Potential CO2 Emissions Level
2.7
CO2 per sq m per Year
31
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
1
Address
46 Denzil Avenue
Date
28 Nov 2013
Current
Potential
49
79
Property Type
House
Built Form
Semi-Detached
Constructed
before 1900
Certificate History
28 Nov 2013
49
79
Total Floor Area
135 sq m
Current CO2 Emissions Level
7.0
Potential CO2 Emissions Level
2.5
CO2 per sq m per Year
52
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
1
Address
52 Denzil Avenue
Date
15 May 2011
Current
Potential
62
69
Property Type
Flat
Built Form
Semi-Detached
Constructed
1930-1949
Certificate History
15 May 2011
62
69
10 Dec 2008
55
69
Total Floor Area
56 sq m
Current CO2 Emissions Level
3.0
Potential CO2 Emissions Level
2.3
CO2 per sq m per Year
53
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
1
Address
52 DENZIL AVENUE, SOUTHAMPTON
Date
22 Apr 2021
Current
Potential
65
73
Property Type
Flat
Built Form
Semi-Detached
Constructed
1900-1929
Certificate History
22 Apr 2021
65
73
Total Floor Area
57 sq m
Current CO2 Emissions Level
2.5
Potential CO2 Emissions Level
1.7
CO2 per sq m per Year
44
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
52a Denzil Avenue
Date
15 May 2011
Current
Potential
68
73
Property Type
Flat
Built Form
Semi-Detached
Constructed
1930-1949
Certificate History
15 May 2011
68
73
Total Floor Area
63 sq m
Current CO2 Emissions Level
2.6
Potential CO2 Emissions Level
2.1
CO2 per sq m per Year
42
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
1
Address
58 Denzil Avenue
Date
30 May 2022
Current
Potential
60
77
Property Type
House
Built Form
Mid-Terrace
Constructed
1930-1949
Certificate History
30 May 2022
60
77
31 Mar 2022
51
77
Total Floor Area
120 sq m
Current CO2 Emissions Level
4.8
Potential CO2 Emissions Level
2.7
CO2 per sq m per Year
40
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
1
Address
64 Denzil Avenue
Date
16 May 2011
Current
Potential
37
62
Property Type
House
Built Form
Mid-Terrace
Constructed
before 1900
Certificate History
16 May 2011
37
62
Total Floor Area
132 sq m
Current CO2 Emissions Level
9.7
Potential CO2 Emissions Level
5.5
CO2 per sq m per Year
74
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
1
Address
66 Denzil Avenue
Date
24 May 2022
Current
Potential
48
75
Property Type
House
Built Form
Mid-Terrace
Constructed
1930-1949
Certificate History
24 May 2022
48
75
19 Jun 2014
53
75
Total Floor Area
143 sq m
Current CO2 Emissions Level
8.0
Potential CO2 Emissions Level
3.6
CO2 per sq m per Year
56
Mains Gas Available
Yes
Habitable Rooms
7
Number of Extensions
2
Address
68 Denzil Avenue
Date
2 Jul 2014
Current
Potential
50
80
Property Type
House
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
2 Jul 2014
50
80
17 Mar 2014
67
81
Total Floor Area
171 sq m
Current CO2 Emissions Level
8.5
Potential CO2 Emissions Level
2.9
CO2 per sq m per Year
49
Mains Gas Available
Yes
Habitable Rooms
8
Number of Extensions
1
Address
70 Denzil Avenue
Date
10 Jan 2014
Current
Potential
61
73
Property Type
House
Built Form
Semi-Detached
Constructed
before 1900
Certificate History
10 Jan 2014
61
73
Total Floor Area
168 sq m
Current CO2 Emissions Level
6.6
Potential CO2 Emissions Level
4.5
CO2 per sq m per Year
39
Mains Gas Available
Yes
Habitable Rooms
9
Number of Extensions
0
Address
First Floor Flat, 24 Denzil Avenue
Date
16 Jun 2020
Current
Potential
65
75
Property Type
Flat
Built Form
Semi-Detached
Constructed
1900-1929
Certificate History
16 Jun 2020
65
75
19 Aug 2009
64
80
Total Floor Area
89 sq m
Current CO2 Emissions Level
3.4
Potential CO2 Emissions Level
2.2
CO2 per sq m per Year
38
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
First Floor Flat, 52a Denzil Avenue
Date
21 Jul 2022
Current
Potential
63
74
Property Type
Flat
Built Form
Semi-Detached
Constructed
1900-1929
Certificate History
21 Jul 2022
63
74
Total Floor Area
69 sq m
Current CO2 Emissions Level
3.1
Potential CO2 Emissions Level
1.9
CO2 per sq m per Year
45
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
Flat 1, 16 Denzil Avenue
Date
24 Oct 2016
Current
Potential
44
75
Property Type
Flat
Built Form
Enclosed End-Terrace
Constructed
1900-1929
Certificate History
24 Oct 2016
44
75
Total Floor Area
34 sq m
Current CO2 Emissions Level
4.1
Potential CO2 Emissions Level
2.1
CO2 per sq m per Year
120
Mains Gas Available
No
Habitable Rooms
2
Number of Extensions
0
Address
Flat 1, 34 Denzil Avenue
Date
4 Jul 2018
Current
Potential
39
70
Property Type
Flat
Built Form
End-Terrace
Constructed
1900-1929
Certificate History
4 Jul 2018
39
70
Total Floor Area
20 sq m
Current CO2 Emissions Level
2.3
Potential CO2 Emissions Level
1.6
CO2 per sq m per Year
114
Mains Gas Available
No
Habitable Rooms
1
Number of Extensions
0
Address
FLAT 1, 60 DENZIL AVENUE
Date
16 Feb 2021
Current
Potential
70
72
Property Type
Flat
Built Form
Enclosed Mid-Terrace
Constructed
1900-1929
Certificate History
16 Feb 2021
70
72
Total Floor Area
30 sq m
Current CO2 Emissions Level
1.2
Potential CO2 Emissions Level
1.1
CO2 per sq m per Year
39
Mains Gas Available
No
Habitable Rooms
2
Number of Extensions
0
Address
Flat 1, 60, Denzil Avenue
Date
8 Mar 2011
Current
Potential
71
72
Property Type
Flat
Built Form
Mid-Terrace
Constructed
before 1900
Certificate History
8 Mar 2011
71
72
Total Floor Area
34 sq m
Current CO2 Emissions Level
1.5
Potential CO2 Emissions Level
1.5
CO2 per sq m per Year
45
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
Flat 2, 16 Denzil Avenue
Date
24 Oct 2016
Current
Potential
71
73
Property Type
Flat
Built Form
Enclosed Mid-Terrace
Constructed
1900-1929
Certificate History
24 Oct 2016
71
73
Total Floor Area
32 sq m
Current CO2 Emissions Level
1.3
Potential CO2 Emissions Level
1.2
CO2 per sq m per Year
40
Mains Gas Available
Yes
Habitable Rooms
1
Number of Extensions
1
Address
Flat 2, 34 Denzil Avenue
Date
4 Jul 2018
Current
Potential
42
74
Property Type
Flat
Built Form
Detached
Constructed
1900-1929
Certificate History
4 Jul 2018
42
74
Total Floor Area
20 sq m
Current CO2 Emissions Level
2.2
Potential CO2 Emissions Level
1.3
CO2 per sq m per Year
107
Mains Gas Available
No
Habitable Rooms
1
Number of Extensions
0
Address
FLAT 2, 60 DENZIL AVENUE
Date
16 Feb 2021
Current
Potential
71
73
Property Type
Flat
Built Form
Enclosed End-Terrace
Constructed
1900-1929
Certificate History
16 Feb 2021
71
73
Total Floor Area
24 sq m
Current CO2 Emissions Level
1.2
Potential CO2 Emissions Level
1.1
CO2 per sq m per Year
50
Mains Gas Available
No
Habitable Rooms
2
Number of Extensions
0
Address
Flat 2, 60, Denzil Avenue
Date
14 Aug 2011
Current
Potential
74
74
Property Type
Flat
Built Form
Enclosed End-Terrace
Constructed
1900-1929
Certificate History
14 Aug 2011
74
74
Total Floor Area
25 sq m
Current CO2 Emissions Level
1.1
Potential CO2 Emissions Level
1.1
CO2 per sq m per Year
45
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
Flat 3, 16 Denzil Avenue
Date
24 Oct 2016
Current
Potential
53
79
Property Type
Flat
Built Form
Enclosed End-Terrace
Constructed
1900-1929
Certificate History
24 Oct 2016
53
79
Total Floor Area
34 sq m
Current CO2 Emissions Level
3.3
Potential CO2 Emissions Level
1.8
CO2 per sq m per Year
96
Mains Gas Available
No
Habitable Rooms
2
Number of Extensions
0
Address
Flat 3, 34 Denzil Avenue
Date
4 Jul 2018
Current
Potential
48
71
Property Type
Flat
Built Form
Enclosed End-Terrace
Constructed
1900-1929
Certificate History
4 Jul 2018
48
71
Total Floor Area
54 sq m
Current CO2 Emissions Level
2.9
Potential CO2 Emissions Level
2.4
CO2 per sq m per Year
53
Mains Gas Available
No
Habitable Rooms
4
Number of Extensions
2
Address
Flat 3, 60 Denzil Avenue
Date
25 May 2022
Current
Potential
72
72
Property Type
Flat
Built Form
Enclosed End-Terrace
Constructed
1900-1929
Certificate History
25 May 2022
72
72
25 Apr 2012
73
73
Total Floor Area
25 sq m
Current CO2 Emissions Level
1.2
Potential CO2 Emissions Level
1.2
CO2 per sq m per Year
47
Mains Gas Available
No
Habitable Rooms
1
Number of Extensions
0
Address
Flat 4, 16 Denzil Avenue
Date
24 Oct 2016
Current
Potential
71
83
Property Type
Flat
Built Form
Enclosed Mid-Terrace
Constructed
1900-1929
Certificate History
24 Oct 2016
71
83
Total Floor Area
18 sq m
Current CO2 Emissions Level
1.4
Potential CO2 Emissions Level
1.2
CO2 per sq m per Year
81
Mains Gas Available
No
Habitable Rooms
1
Number of Extensions
0
Address
Flat 4, 34 Denzil Avenue
Date
4 Jul 2018
Current
Potential
62
77
Property Type
Flat
Built Form
End-Terrace
Constructed
1900-1929
Certificate History
4 Jul 2018
62
77
Total Floor Area
27 sq m
Current CO2 Emissions Level
1.5
Potential CO2 Emissions Level
1.2
CO2 per sq m per Year
58
Mains Gas Available
No
Habitable Rooms
2
Number of Extensions
0
Address
Flat 4, 60, Denzil Avenue
Date
30 May 2016
Current
Potential
53
75
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
30 May 2016
53
75
Total Floor Area
56 sq m
Current CO2 Emissions Level
3.4
Potential CO2 Emissions Level
1.3
CO2 per sq m per Year
61
Mains Gas Available
No
Habitable Rooms
3
Number of Extensions
0
Address
Flat 5, 16 Denzil Avenue
Date
24 Oct 2016
Current
Potential
71
73
Property Type
Flat
Built Form
Enclosed Mid-Terrace
Constructed
1900-1929
Certificate History
24 Oct 2016
71
73
24 Oct 2016
51
78
Total Floor Area
32 sq m
Current CO2 Emissions Level
1.3
Potential CO2 Emissions Level
1.2
CO2 per sq m per Year
40
Mains Gas Available
Yes
Habitable Rooms
1
Number of Extensions
1
Address
Flat 5, 34 Denzil Avenue
Date
4 Jul 2018
Current
Potential
62
76
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1900-1929
Certificate History
4 Jul 2018
62
76
Total Floor Area
16 sq m
Current CO2 Emissions Level
1.3
Potential CO2 Emissions Level
1.0
CO2 per sq m per Year
84
Mains Gas Available
No
Habitable Rooms
1
Number of Extensions
0
Address
Flat 6, 16 Denzil Avenue
Date
24 Oct 2016
Current
Potential
62
66
Property Type
Flat
Built Form
Semi-Detached
Constructed
1900-1929
Certificate History
24 Oct 2016
62
66
Total Floor Area
64 sq m
Current CO2 Emissions Level
2.9
Potential CO2 Emissions Level
2.6
CO2 per sq m per Year
45
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
Flat 6, 34 Denzil Avenue
Date
4 Jul 2018
Current
Potential
60
76
Property Type
Flat
Built Form
Enclosed End-Terrace
Constructed
1900-1929
Certificate History
4 Jul 2018
60
76
Total Floor Area
21 sq m
Current CO2 Emissions Level
1.5
Potential CO2 Emissions Level
1.2
CO2 per sq m per Year
72
Mains Gas Available
No
Habitable Rooms
1
Number of Extensions
0
Address
Flat 7, 16 Denzil Avenue
Date
24 Oct 2016
Current
Potential
59
67
Property Type
Flat
Built Form
End-Terrace
Constructed
1900-1929
Certificate History
24 Oct 2016
59
67
Total Floor Area
44 sq m
Current CO2 Emissions Level
2.5
Potential CO2 Emissions Level
1.9
CO2 per sq m per Year
58
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
1
Address
Flat 7, 34 Denzil Avenue
Date
18 Aug 2019
Current
Potential
45
65
Property Type
Flat
Built Form
Detached
Constructed
1900-1929
Certificate History
18 Aug 2019
45
65
Total Floor Area
24 sq m
Current CO2 Emissions Level
2.2
Potential CO2 Emissions Level
2.1
CO2 per sq m per Year
90
Mains Gas Available
No
Habitable Rooms
2
Number of Extensions
0
Address
Ground Floor Flat, 24 Denzil Avenue
Date
30 Jul 2023
Current
Potential
48
63
Property Type
Flat
Built Form
Enclosed End-Terrace
Constructed
1900-1929
Certificate History
30 Jul 2023
48
63
19 Jun 2018
44
61
23 Jun 2010
32
46
Total Floor Area
56 sq m
Current CO2 Emissions Level
5.1
Potential CO2 Emissions Level
3.5
CO2 per sq m per Year
92
Mains Gas Available
No
Habitable Rooms
2
Number of Extensions
0
Address
R/O 50 Denzil Avenue
Date
30 Jan 2025
Current
Potential
57
70
Property Type
Flat
Built Form
Detached
Constructed
2007-2011
Certificate History
30 Jan 2025
57
70
Total Floor Area
36 sq m
Current CO2 Emissions Level
2.0
Potential CO2 Emissions Level
2.0
CO2 per sq m per Year
55
Mains Gas Available
No
Habitable Rooms
1
Number of Extensions
0
Address
Rear Flat, 24 Denzil Avenue
Date
5 Dec 2024
Current
Potential
53
74
Property Type
Flat
Built Form
Enclosed End-Terrace
Constructed
1900-1929
Certificate History
5 Dec 2024
53
74
Total Floor Area
20 sq m
Current CO2 Emissions Level
1.7
Potential CO2 Emissions Level
1.3
CO2 per sq m per Year
88
Mains Gas Available
No
Habitable Rooms
1
Number of Extensions
0
Address
Top Flat, 28 Denzil Avenue
Date
28 Sep 2020
Current
Potential
55
75
Property Type
Flat
Built Form
Semi-Detached
Constructed
1900-1929
Certificate History
28 Sep 2020
55
75
Total Floor Area
81 sq m
Current CO2 Emissions Level
4.3
Potential CO2 Emissions Level
2.1
CO2 per sq m per Year
54
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.