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PROPERTY ENERGY EFFICIENCY CERTIFICATE DETAILS
Heol Ddu, Pen-y-Mynydd, LLANELLI, SA15 4RN

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 Heol Ddu, Pen-y-Mynydd, SA15 4RN 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 Heol Ddu, Pen-y-Mynydd, LLANELLI, SA15 4RN
Period Covered: 2008 - 31 January 2025

Address
Inspection Date
Current
Potential
Property Type
Built Form
Constructed
Address
13 Heol Ddu, Pen-y-Mynydd
Date
20 Nov 2013
Current
Potential
28
64
Property Type
Bungalow
Built Form
Detached
Constructed
1950-1966
+
Certificate History
20 Nov 2013
28
64
Total Floor Area
70 sq m
Current CO2 Emissions Level
7.1
Potential CO2 Emissions Level
3.3
CO2 per sq m per Year
102
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
14 Heol Ddu, Pen-y-Mynydd
Date
11 Nov 2015
Current
Potential
67
93
Property Type
House
Built Form
Detached
Constructed
1967-1975
+
Certificate History
11 Nov 2015
67
93
Total Floor Area
146 sq m
Current CO2 Emissions Level
5.6
Potential CO2 Emissions Level
1.8
CO2 per sq m per Year
38
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
1
Address
15 Heol Ddu, Pen-y-Mynydd
Date
6 Aug 2012
Current
Potential
49
81
Property Type
House
Built Form
Detached
Constructed
1900-1929
+
Certificate History
6 Aug 2012
49
81
Total Floor Area
114 sq m
Current CO2 Emissions Level
6.6
Potential CO2 Emissions Level
2.3
CO2 per sq m per Year
58
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
1
Address
15a Heol Ddu, Pen-y-Mynydd
Date
15 Feb 2018
Current
Potential
87
91
Property Type
House
Built Form
Detached
Constructed
N/A
+
Certificate History
15 Feb 2018
87
91
Total Floor Area
253 sq m
Current CO2 Emissions Level
3.1
Potential CO2 Emissions Level
2.1
CO2 per sq m per Year
12
Mains Gas Available
No
Habitable Rooms
0
Number of Extensions
0
Address
16 Heol Ddu, Pen-Y-Mynydd
Date
22 Feb 2024
Current
Potential
72
80
Property Type
House
Built Form
Detached
Constructed
1983-1990
+
Certificate History
22 Feb 2024
72
80
30 Mar 2010
72
74
Total Floor Area
160 sq m
Current CO2 Emissions Level
5.2
Potential CO2 Emissions Level
3.8
CO2 per sq m per Year
33
Mains Gas Available
Yes
Habitable Rooms
7
Number of Extensions
1
Address
19 Heol Ddu, Pen-y-Mynydd
Date
30 Jul 2012
Current
Potential
73
82
Property Type
House
Built Form
Detached
Constructed
1991-1995
+
Certificate History
30 Jul 2012
73
82
Total Floor Area
144 sq m
Current CO2 Emissions Level
3.9
Potential CO2 Emissions Level
2.6
CO2 per sq m per Year
27
Mains Gas Available
Yes
Habitable Rooms
8
Number of Extensions
0
Address
2 Heol Ddu, Pen-Y-Mynydd
Date
6 Apr 2022
Current
Potential
69
82
Property Type
House
Built Form
Detached
Constructed
1976-1982
+
Certificate History
6 Apr 2022
69
82
27 Jun 2011
62
64
Total Floor Area
155 sq m
Current CO2 Emissions Level
5.4
Potential CO2 Emissions Level
3.3
CO2 per sq m per Year
35
Mains Gas Available
Yes
Habitable Rooms
7
Number of Extensions
0
Address
21 Heol Ddu, Pen-Y-Mynydd
Date
24 Mar 2022
Current
Potential
75
85
Property Type
House
Built Form
Detached
Constructed
before 1900
+
Certificate History
24 Mar 2022
75
85
Total Floor Area
136 sq m
Current CO2 Emissions Level
3.8
Potential CO2 Emissions Level
2.3
CO2 per sq m per Year
28
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
2
Address
6 Heol Ddu, Pen-y-Mynydd
Date
10 Mar 2015
Current
Potential
55
106
Property Type
Bungalow
Built Form
Detached
Constructed
1976-1982
+
Certificate History
10 Mar 2015
55
106
23 Jan 2015
52
85
Total Floor Area
90 sq m
Current CO2 Emissions Level
5.4
Potential CO2 Emissions Level
-0.3
CO2 per sq m per Year
60
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
7 Heol Ddu, Pen-Y-Mynydd
Date
9 Mar 2023
Current
Potential
67
81
Property Type
House
Built Form
Detached
Constructed
1967-1975
+
Certificate History
9 Mar 2023
67
81
Total Floor Area
150 sq m
Current CO2 Emissions Level
5.0
Potential CO2 Emissions Level
2.9
CO2 per sq m per Year
33
Mains Gas Available
Yes
Habitable Rooms
7
Number of Extensions
1
Address
8 Heol Ddu, Pen-Y-Mynydd
Date
29 Jun 2023
Current
Potential
59
83
Property Type
Bungalow
Built Form
Detached
Constructed
1967-1975
+
Certificate History
29 Jun 2023
59
83
22 Jun 2023
59
82
21 Apr 2022
72
88
Total Floor Area
230 sq m
Current CO2 Emissions Level
11.0
Potential CO2 Emissions Level
4.5
CO2 per sq m per Year
47
Mains Gas Available
Yes
Habitable Rooms
8
Number of Extensions
0
Address
Ael y Bryn, Heol Ddu
Date
20 Nov 2014
Current
Potential
22
86
Property Type
House
Built Form
Semi-Detached
Constructed
1900-1929
+
Certificate History
20 Nov 2014
22
86
Total Floor Area
99 sq m
Current CO2 Emissions Level
7.8
Potential CO2 Emissions Level
3.1
CO2 per sq m per Year
79
Mains Gas Available
No
Habitable Rooms
7
Number of Extensions
1
Address
Blaen-y-Cwm, Heol Ddu
Date
17 Nov 2019
Current
Potential
62
82
Property Type
House
Built Form
Detached
Constructed
before 1900
+
Certificate History
17 Nov 2019
62
82
28 Dec 2018
1
64
Total Floor Area
148 sq m
Current CO2 Emissions Level
4.7
Potential CO2 Emissions Level
2.2
CO2 per sq m per Year
32
Mains Gas Available
No
Habitable Rooms
7
Number of Extensions
2
Address
Penrhiw, Heol Ddu
Date
8 Jun 2009
Current
Potential
16
31
Property Type
House
Built Form
Detached
Constructed
before 1900
+
Certificate History
8 Jun 2009
16
31
Total Floor Area
127 sq m
Current CO2 Emissions Level
7.5
Potential CO2 Emissions Level
5.4
CO2 per sq m per Year
70
Mains Gas Available
No
Habitable Rooms
6
Number of Extensions
2
Address
Penrhiw cottage Heol ddu
Date
17 Jul 2021
Current
Potential
29
86
Property Type
House
Built Form
Detached
Constructed
before 1900
+
Certificate History
17 Jul 2021
29
86
Total Floor Area
109 sq m
Current CO2 Emissions Level
5.5
Potential CO2 Emissions Level
0.2
CO2 per sq m per Year
51
Mains Gas Available
No
Habitable Rooms
9
Number of Extensions
1
Address
Trem y Wawr, Heol Ddu
Date
28 Jun 2011
Current
Potential
10
35
Property Type
House
Built Form
Semi-Detached
Constructed
before 1900
+
Certificate History
28 Jun 2011
10
35
Total Floor Area
102 sq m
Current CO2 Emissions Level
9.5
Potential CO2 Emissions Level
5.6
CO2 per sq m per Year
93
Mains Gas Available
No
Habitable Rooms
5
Number of Extensions
2
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.