Advanced

PROPERTY ENERGY EFFICIENCY CERTIFICATE DETAILS
Bontddu, DOLGELLAU, LL40 2TU

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 LL40 2TU 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 Bontddu, DOLGELLAU, LL40 2TU
Period Covered: 2008 - 31 January 2025

Address
Inspection Date
Current
Potential
Property Type
Built Form
Constructed
Address
Ael y Bryn, Bontddu
Date
4 Sep 2020
Current
Potential
31
71
Property Type
House
Built Form
Detached
Constructed
before 1900
+
Certificate History
4 Sep 2020
31
71
Total Floor Area
179 sq m
Current CO2 Emissions Level
15.0
Potential CO2 Emissions Level
6.4
CO2 per sq m per Year
84
Mains Gas Available
No
Habitable Rooms
9
Number of Extensions
1
Address
Anwylfa, Bontddu
Date
7 Apr 2014
Current
Potential
23
93
Property Type
House
Built Form
Semi-Detached
Constructed
before 1900
+
Certificate History
7 Apr 2014
23
93
Total Floor Area
50 sq m
Current CO2 Emissions Level
7.6
Potential CO2 Emissions Level
1.0
CO2 per sq m per Year
153
Mains Gas Available
No
Habitable Rooms
3
Number of Extensions
0
Address
Bryn Mawddach Tai Cynhaeaf, Bontddu
Date
22 Aug 2010
Current
Potential
14
31
Property Type
House
Built Form
Detached
Constructed
before 1900
+
Certificate History
22 Aug 2010
14
31
Total Floor Area
129 sq m
Current CO2 Emissions Level
20.0
Potential CO2 Emissions Level
14.0
CO2 per sq m per Year
115
Mains Gas Available
No
Habitable Rooms
8
Number of Extensions
0
Address
Bryn Tryfer, Bontddu
Date
20 Feb 2015
Current
Potential
66
77
Property Type
Bungalow
Built Form
Detached
Constructed
1950-1966
+
Certificate History
20 Feb 2015
66
77
Total Floor Area
225 sq m
Current CO2 Emissions Level
1.1
Potential CO2 Emissions Level
0.0
CO2 per sq m per Year
5
Mains Gas Available
No
Habitable Rooms
8
Number of Extensions
1
Address
Capel Soar Tai Cynhaeaf, Bontddu
Date
28 Oct 2019
Current
Potential
47
86
Property Type
House
Built Form
Detached
Constructed
1900-1929
+
Certificate History
28 Oct 2019
47
86
Total Floor Area
219 sq m
Current CO2 Emissions Level
12.0
Potential CO2 Emissions Level
3.9
CO2 per sq m per Year
55
Mains Gas Available
No
Habitable Rooms
6
Number of Extensions
1
Address
Cartref, Bontddu
Date
3 Oct 2021
Current
Potential
41
117
Property Type
House
Built Form
Semi-Detached
Constructed
before 1900
+
Certificate History
3 Oct 2021
41
117
Total Floor Area
53 sq m
Current CO2 Emissions Level
6.2
Potential CO2 Emissions Level
-0.2
CO2 per sq m per Year
117
Mains Gas Available
No
Habitable Rooms
4
Number of Extensions
1
Address
FOEL ISPRI UCHAF, TAICYNHAEAF
Date
29 Aug 2022
Current
Potential
31
84
Property Type
House
Built Form
Detached
Constructed
before 1900
+
Certificate History
29 Aug 2022
31
84
Total Floor Area
106 sq m
Current CO2 Emissions Level
13.0
Potential CO2 Emissions Level
4.0
CO2 per sq m per Year
126
Mains Gas Available
No
Habitable Rooms
6
Number of Extensions
2
Address
Gorphwysfa, Tai Cynhaeaf
Date
19 Jul 2024
Current
Potential
15
72
Property Type
House
Built Form
Detached
Constructed
before 1900
+
Certificate History
19 Jul 2024
15
72
Total Floor Area
91 sq m
Current CO2 Emissions Level
12.0
Potential CO2 Emissions Level
3.6
CO2 per sq m per Year
130
Mains Gas Available
No
Habitable Rooms
6
Number of Extensions
2
Address
Hawddamor, Bontddu
Date
19 Apr 2009
Current
Potential
9
10
Property Type
House
Built Form
Detached
Constructed
before 1900
+
Certificate History
19 Apr 2009
9
10
Total Floor Area
139 sq m
Current CO2 Emissions Level
16.0
Potential CO2 Emissions Level
16.0
CO2 per sq m per Year
104
Mains Gas Available
No
Habitable Rooms
6
Number of Extensions
1
Address
Hendre Coed, Bontddu
Date
8 Feb 2023
Current
Potential
63
77
Property Type
House
Built Form
End-Terrace
Constructed
before 1900
+
Certificate History
8 Feb 2023
63
77
Total Floor Area
116 sq m
Current CO2 Emissions Level
5.5
Potential CO2 Emissions Level
3.6
CO2 per sq m per Year
47
Mains Gas Available
No
Habitable Rooms
5
Number of Extensions
2
Address
Llys Teg Tai Cynhaeaf, Bontddu
Date
29 Nov 2011
Current
Potential
65
65
Property Type
House
Built Form
End-Terrace
Constructed
1930-1949
+
Certificate History
29 Nov 2011
65
65
Total Floor Area
96 sq m
Current CO2 Emissions Level
4.6
Potential CO2 Emissions Level
4.6
CO2 per sq m per Year
48
Mains Gas Available
No
Habitable Rooms
5
Number of Extensions
2
Address
Lone Heights, Bontddu
Date
25 Aug 2022
Current
Potential
5
45
Property Type
Bungalow
Built Form
Detached
Constructed
1930-1949
+
Certificate History
25 Aug 2022
5
45
Total Floor Area
121 sq m
Current CO2 Emissions Level
24.0
Potential CO2 Emissions Level
13.0
CO2 per sq m per Year
196
Mains Gas Available
No
Habitable Rooms
5
Number of Extensions
2
Address
Nant y Garreg, Bontddu
Date
18 Aug 2020
Current
Potential
36
83
Property Type
House
Built Form
Detached
Constructed
1900-1929
+
Certificate History
18 Aug 2020
36
83
Total Floor Area
263 sq m
Current CO2 Emissions Level
18.0
Potential CO2 Emissions Level
5.5
CO2 per sq m per Year
68
Mains Gas Available
No
Habitable Rooms
11
Number of Extensions
2
Address
Pen y Banc Tai Cynhaeaf, Bontddu
Date
31 Mar 2016
Current
Potential
35
98
Property Type
House
Built Form
Detached
Constructed
1976-1982
+
Certificate History
31 Mar 2016
35
98
Total Floor Area
77 sq m
Current CO2 Emissions Level
6.7
Potential CO2 Emissions Level
0.9
CO2 per sq m per Year
87
Mains Gas Available
No
Habitable Rooms
3
Number of Extensions
1
Address
Pen y Bryn, Bontddu
Date
20 Mar 2015
Current
Potential
55
95
Property Type
Bungalow
Built Form
Detached
Constructed
before 1900
+
Certificate History
20 Mar 2015
55
95
27 Jan 2015
42
89
5 Jun 2011
32
37
Total Floor Area
127 sq m
Current CO2 Emissions Level
3.5
Potential CO2 Emissions Level
-0.6
CO2 per sq m per Year
27
Mains Gas Available
No
Habitable Rooms
5
Number of Extensions
0
Address
Ty Noddfa, Bontddu
Date
3 Sep 2014
Current
Potential
68
76
Property Type
House
Built Form
Detached
Constructed
before 1900
+
Certificate History
3 Sep 2014
68
76
Total Floor Area
131 sq m
Current CO2 Emissions Level
3.6
Potential CO2 Emissions Level
2.5
CO2 per sq m per Year
27
Mains Gas Available
No
Habitable Rooms
5
Number of Extensions
1
Address
Tyn Rhyd, Bontddu
Date
29 Dec 2014
Current
Potential
64
85
Property Type
House
Built Form
Detached
Constructed
1967-1975
+
Certificate History
29 Dec 2014
64
85
10 May 2010
56
69
Total Floor Area
222 sq m
Current CO2 Emissions Level
-1.0
Potential CO2 Emissions Level
-3.1
CO2 per sq m per Year
-4
Mains Gas Available
No
Habitable Rooms
7
Number of Extensions
4
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.