PROPERTY ENERGY EFFICIENCY CERTIFICATE DETAILS
Heol Dewi, HAVERFORDWEST, SA62 6NY

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 Dewi, SA62 6NY 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 Dewi, HAVERFORDWEST, SA62 6NY
Period Covered: 2008 - 31 January 2025

Address
Inspection Date
Current
Potential
Property Type
Built Form
Constructed
Address
12 Heol Dewi, St. Davids
Date
7 Jan 2020
Current
Potential
54
80
Property Type
House
Built Form
Semi-Detached
Constructed
1950-1966
+
Certificate History
7 Jan 2020
54
80
Total Floor Area
98 sq m
Current CO2 Emissions Level
5.7
Potential CO2 Emissions Level
2.2
CO2 per sq m per Year
58
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
2
Address
14 Heol Dewi, St. Davids
Date
3 Dec 2015
Current
Potential
66
85
Property Type
House
Built Form
Semi-Detached
Constructed
1950-1966
+
Certificate History
3 Dec 2015
66
85
Total Floor Area
100 sq m
Current CO2 Emissions Level
3.8
Potential CO2 Emissions Level
1.3
CO2 per sq m per Year
38
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
1
Address
16 Heol Dewi, St. Davids
Date
20 Jan 2012
Current
Potential
58
67
Property Type
House
Built Form
Semi-Detached
Constructed
1950-1966
+
Certificate History
20 Jan 2012
58
67
Total Floor Area
96 sq m
Current CO2 Emissions Level
4.9
Potential CO2 Emissions Level
3.8
CO2 per sq m per Year
51
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
1
Address
19 Heol Dewi, St. Davids
Date
24 Jul 2016
Current
Potential
55
85
Property Type
House
Built Form
Semi-Detached
Constructed
1930-1949
+
Certificate History
24 Jul 2016
55
85
Total Floor Area
92 sq m
Current CO2 Emissions Level
5.2
Potential CO2 Emissions Level
1.5
CO2 per sq m per Year
56
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
1
Address
2 Heol Dewi, St. Davids
Date
6 Nov 2024
Current
Potential
66
83
Property Type
House
Built Form
Semi-Detached
Constructed
1950-1966
+
Certificate History
6 Nov 2024
66
83
Total Floor Area
79 sq m
Current CO2 Emissions Level
3.4
Potential CO2 Emissions Level
1.6
CO2 per sq m per Year
42
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
1
Address
21 Heol Dewi, St. Davids
Date
25 Jul 2012
Current
Potential
67
78
Property Type
House
Built Form
Semi-Detached
Constructed
1950-1966
+
Certificate History
25 Jul 2012
67
78
Total Floor Area
109 sq m
Current CO2 Emissions Level
3.9
Potential CO2 Emissions Level
2.5
CO2 per sq m per Year
35
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
1
Address
22 Heol Dewi, St. Davids
Date
22 Jul 2014
Current
Potential
56
71
Property Type
House
Built Form
Semi-Detached
Constructed
1950-1966
+
Certificate History
22 Jul 2014
56
71
Total Floor Area
94 sq m
Current CO2 Emissions Level
4.8
Potential CO2 Emissions Level
2.9
CO2 per sq m per Year
51
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
1
Address
23 Heol Dewi, St. Davids
Date
14 Feb 2012
Current
Potential
70
71
Property Type
House
Built Form
Semi-Detached
Constructed
1950-1966
+
Certificate History
14 Feb 2012
70
71
Total Floor Area
95 sq m
Current CO2 Emissions Level
3.3
Potential CO2 Emissions Level
3.1
CO2 per sq m per Year
34
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
1
Address
24 Heol Dewi, St. Davids
Date
17 May 2015
Current
Potential
70
84
Property Type
House
Built Form
Semi-Detached
Constructed
1930-1949
+
Certificate History
17 May 2015
70
84
Total Floor Area
116 sq m
Current CO2 Emissions Level
3.8
Potential CO2 Emissions Level
1.9
CO2 per sq m per Year
33
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
1
Address
25 Heol Dewi, St. Davids
Date
17 Jan 2022
Current
Potential
62
76
Property Type
House
Built Form
Semi-Detached
Constructed
1950-1966
+
Certificate History
17 Jan 2022
62
76
Total Floor Area
113 sq m
Current CO2 Emissions Level
5.0
Potential CO2 Emissions Level
3.1
CO2 per sq m per Year
44
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
1
Address
26 Heol Dewi, St. Davids
Date
11 Sep 2016
Current
Potential
59
75
Property Type
House
Built Form
End-Terrace
Constructed
1950-1966
+
Certificate History
11 Sep 2016
59
75
Total Floor Area
80 sq m
Current CO2 Emissions Level
4.2
Potential CO2 Emissions Level
2.5
CO2 per sq m per Year
53
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
28 Heol Dewi, St. Davids
Date
23 May 2022
Current
Potential
69
81
Property Type
House
Built Form
Mid-Terrace
Constructed
1950-1966
+
Certificate History
23 May 2022
69
81
Total Floor Area
79 sq m
Current CO2 Emissions Level
3.0
Potential CO2 Emissions Level
1.8
CO2 per sq m per Year
38
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
3 Heol Dewi, St. Davids
Date
30 May 2011
Current
Potential
62
67
Property Type
House
Built Form
Semi-Detached
Constructed
1950-1966
+
Certificate History
30 May 2011
62
67
Total Floor Area
95 sq m
Current CO2 Emissions Level
4.6
Potential CO2 Emissions Level
4.0
CO2 per sq m per Year
44
Mains Gas Available
Yes
Habitable Rooms
7
Number of Extensions
1
Address
30 Heol Dewi, St. Davids
Date
9 Sep 2013
Current
Potential
53
70
Property Type
House
Built Form
Mid-Terrace
Constructed
1950-1966
+
Certificate History
9 Sep 2013
53
70
16 May 2013
58
70
Total Floor Area
93 sq m
Current CO2 Emissions Level
5.1
Potential CO2 Emissions Level
3.3
CO2 per sq m per Year
55
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
31 Heol Dewi, St. Davids
Date
9 Oct 2017
Current
Potential
54
72
Property Type
House
Built Form
Mid-Terrace
Constructed
1950-1966
+
Certificate History
9 Oct 2017
54
72
Total Floor Area
80 sq m
Current CO2 Emissions Level
4.7
Potential CO2 Emissions Level
2.9
CO2 per sq m per Year
59
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
32 Heol Dewi, St. Davids
Date
11 Apr 2011
Current
Potential
50
67
Property Type
House
Built Form
Semi-Detached
Constructed
1950-1966
+
Certificate History
11 Apr 2011
50
67
Total Floor Area
90 sq m
Current CO2 Emissions Level
5.9
Potential CO2 Emissions Level
3.8
CO2 per sq m per Year
56
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
1
Address
33 Heol Dewi, St. Davids
Date
14 May 2014
Current
Potential
37
55
Property Type
House
Built Form
Mid-Terrace
Constructed
1950-1966
+
Certificate History
14 May 2014
37
55
Total Floor Area
80 sq m
Current CO2 Emissions Level
1.9
Potential CO2 Emissions Level
0.5
CO2 per sq m per Year
24
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
35 Heol Dewi, St. Davids
Date
18 Jun 2024
Current
Potential
49
73
Property Type
House
Built Form
End-Terrace
Constructed
1950-1966
+
Certificate History
18 Jun 2024
49
73
Total Floor Area
109 sq m
Current CO2 Emissions Level
6.1
Potential CO2 Emissions Level
2.9
CO2 per sq m per Year
56
Mains Gas Available
Yes
Habitable Rooms
7
Number of Extensions
1
Address
4 Heol Dewi, St. Davids
Date
28 Nov 2024
Current
Potential
64
96
Property Type
House
Built Form
Semi-Detached
Constructed
1950-1966
+
Certificate History
28 Nov 2024
64
96
13 Aug 2014
71
80
Total Floor Area
157 sq m
Current CO2 Emissions Level
6.3
Potential CO2 Emissions Level
1.1
CO2 per sq m per Year
40
Mains Gas Available
Yes
Habitable Rooms
7
Number of Extensions
1
Address
6 Heol Dewi, St. Davids
Date
10 Jan 2014
Current
Potential
53
83
Property Type
House
Built Form
Semi-Detached
Constructed
1930-1949
+
Certificate History
10 Jan 2014
53
83
Total Floor Area
90 sq m
Current CO2 Emissions Level
5.0
Potential CO2 Emissions Level
1.5
CO2 per sq m per Year
55
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
1
Address
9 Heol Dewi, St. Davids
Date
3 Feb 2015
Current
Potential
57
85
Property Type
House
Built Form
Semi-Detached
Constructed
1950-1966
+
Certificate History
3 Feb 2015
57
85
Total Floor Area
88 sq m
Current CO2 Emissions Level
4.9
Potential CO2 Emissions Level
1.5
CO2 per sq m per Year
55
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
1
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.

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Contains Royal Mail data © Royal Mail copyright and Database right 2025.