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PROPERTY ENERGY EFFICIENCY CERTIFICATE DETAILS
Llwyn Onn, COLWYN BAY, LL28 4BZ

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 Llwyn Onn, LL28 4BZ 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 Llwyn Onn, COLWYN BAY, LL28 4BZ
Period Covered: 2008 - 31 January 2025

Address
Inspection Date
Current
Potential
Property Type
Built Form
Constructed
Address
10 Llwyn Onn, Rhos on Sea
Date
15 May 2014
Current
Potential
29
82
Property Type
House
Built Form
Mid-Terrace
Constructed
1950-1966
+
Certificate History
15 May 2014
29
82
Total Floor Area
78 sq m
Current CO2 Emissions Level
7.0
Potential CO2 Emissions Level
1.7
CO2 per sq m per Year
90
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
0
Address
12 LLWYN ONN, RHOS ON SEA
Date
24 Dec 2020
Current
Potential
69
85
Property Type
House
Built Form
End-Terrace
Constructed
1950-1966
+
Certificate History
24 Dec 2020
69
85
Total Floor Area
86 sq m
Current CO2 Emissions Level
3.4
Potential CO2 Emissions Level
1.6
CO2 per sq m per Year
39
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
12 Llwyn Onn, Rhos on Sea
Date
1 Feb 2011
Current
Potential
66
71
Property Type
House
Built Form
End-Terrace
Constructed
1950-1966
+
Certificate History
1 Feb 2011
66
71
Total Floor Area
84 sq m
Current CO2 Emissions Level
3.5
Potential CO2 Emissions Level
2.9
CO2 per sq m per Year
41
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
13 Llwyn Onn, Rhos On Sea
Date
27 Jan 2022
Current
Potential
46
70
Property Type
House
Built Form
Detached
Constructed
1900-1929
+
Certificate History
27 Jan 2022
46
70
30 Mar 2011
37
43
Total Floor Area
194 sq m
Current CO2 Emissions Level
12.4
Potential CO2 Emissions Level
7.0
CO2 per sq m per Year
64
Mains Gas Available
Yes
Habitable Rooms
7
Number of Extensions
3
Address
14 Llwyn Onn, Rhos on Sea
Date
4 Oct 2016
Current
Potential
62
84
Property Type
House
Built Form
Semi-Detached
Constructed
1930-1949
+
Certificate History
4 Oct 2016
62
84
Total Floor Area
103 sq m
Current CO2 Emissions Level
4.9
Potential CO2 Emissions Level
2.0
CO2 per sq m per Year
48
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
15-17 Llwyn Onn, Rhos on Sea
Date
2 Mar 2020
Current
Potential
66
80
Property Type
House
Built Form
Detached
Constructed
1950-1966
+
Certificate History
2 Mar 2020
66
80
Total Floor Area
225 sq m
Current CO2 Emissions Level
8.5
Potential CO2 Emissions Level
5.1
CO2 per sq m per Year
38
Mains Gas Available
Yes
Habitable Rooms
10
Number of Extensions
1
Address
16 Llwyn Onn, Rhos On Sea
Date
30 Mar 2023
Current
Potential
67
80
Property Type
House
Built Form
Semi-Detached
Constructed
1950-1966
+
Certificate History
30 Mar 2023
67
80
11 Apr 2013
65
85
Total Floor Area
83 sq m
Current CO2 Emissions Level
3.3
Potential CO2 Emissions Level
1.9
CO2 per sq m per Year
39
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
18 Llwyn Onn, Rhos on Sea
Date
12 Jul 2011
Current
Potential
57
57
Property Type
House
Built Form
Semi-Detached
Constructed
1930-1949
+
Certificate History
12 Jul 2011
57
57
Total Floor Area
83 sq m
Current CO2 Emissions Level
4.5
Potential CO2 Emissions Level
4.5
CO2 per sq m per Year
55
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
19 Llwyn Onn, Rhos On Sea
Date
16 Feb 2022
Current
Potential
61
75
Property Type
House
Built Form
Semi-Detached
Constructed
1950-1966
+
Certificate History
16 Feb 2022
61
75
Total Floor Area
85 sq m
Current CO2 Emissions Level
4.0
Potential CO2 Emissions Level
2.6
CO2 per sq m per Year
47
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
2 Llwyn Onn, Rhos On Sea
Date
30 Jan 2023
Current
Potential
62
82
Property Type
House
Built Form
Mid-Terrace
Constructed
1950-1966
+
Certificate History
30 Jan 2023
62
82
Total Floor Area
83 sq m
Current CO2 Emissions Level
3.8
Potential CO2 Emissions Level
1.7
CO2 per sq m per Year
46
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
20 Llwyn Onn, Rhos on Sea
Date
19 Jun 2012
Current
Potential
66
88
Property Type
House
Built Form
Semi-Detached
Constructed
1950-1966
+
Certificate History
19 Jun 2012
66
88
Total Floor Area
75 sq m
Current CO2 Emissions Level
3.3
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
21 Llwyn Onn, Rhos on Sea
Date
8 Nov 2016
Current
Potential
69
85
Property Type
House
Built Form
Semi-Detached
Constructed
1967-1975
+
Certificate History
8 Nov 2016
69
85
Total Floor Area
81 sq m
Current CO2 Emissions Level
3.2
Potential CO2 Emissions Level
1.7
CO2 per sq m per Year
40
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
23 Llwyn Onn, Rhos on Sea
Date
21 Jul 2016
Current
Potential
60
83
Property Type
House
Built Form
Detached
Constructed
1930-1949
+
Certificate History
21 Jul 2016
60
83
Total Floor Area
84 sq m
Current CO2 Emissions Level
4.6
Potential CO2 Emissions Level
1.9
CO2 per sq m per Year
54
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
0
Address
25 Llwyn Onn, Rhos On Sea
Date
10 Mar 2022
Current
Potential
63
83
Property Type
House
Built Form
Detached
Constructed
1950-1966
+
Certificate History
10 Mar 2022
63
83
Total Floor Area
84 sq m
Current CO2 Emissions Level
4.2
Potential CO2 Emissions Level
1.9
CO2 per sq m per Year
50
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
4 Llwyn Onn, Rhos on Sea
Date
14 Feb 2014
Current
Potential
67
82
Property Type
House
Built Form
Mid-Terrace
Constructed
1950-1966
+
Certificate History
14 Feb 2014
67
82
Total Floor Area
109 sq m
Current CO2 Emissions Level
3.8
Potential CO2 Emissions Level
1.9
CO2 per sq m per Year
35
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
1
Address
8 Llwyn Onn, Rhos on Sea
Date
10 Aug 2017
Current
Potential
72
87
Property Type
House
Built Form
Mid-Terrace
Constructed
1950-1966
+
Certificate History
10 Aug 2017
72
87
Total Floor Area
83 sq m
Current CO2 Emissions Level
2.7
Potential CO2 Emissions Level
1.3
CO2 per sq m per Year
33
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Bands

A
92 - 100
B
81 - 91
C
69 - 80
D
55 -68
E
39 -54
F
54 -38
G
0 - 20

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.