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PROPERTY ENERGY EFFICIENCY CERTIFICATE DETAILS
Cardiff Castle Grounds, CARDIFF, CF10 3EA

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 Cardiff Castle Grounds, CF10 3EA 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 Cardiff Castle Grounds, CARDIFF, CF10 3EA
Period Covered: 2008 - 31 January 2025

Address
Inspection Date
Current
Potential
Property Type
Built Form
Constructed
Address
1 Blackweir Cottages, Cardiff Castle Grounds
Date
3 Nov 2025
Current
Potential
65
80
Property Type
House
Built Form
End-Terrace
Constructed
before 1900
+
Certificate History
3 Nov 2025
65
80
8 Apr 2009
38
47
Total Floor Area
115 sq m
Current CO2 Emissions Level
4.6
Potential CO2 Emissions Level
2.8
CO2 per sq m per Year
40
Mains Gas Available
Yes
Habitable Rooms
7
Number of Extensions
0
Address
2 Blackweir Cottages, Cardiff Castle Grounds
Date
18 Jan 2018
Current
Potential
59
78
Property Type
House
Built Form
Mid-Terrace
Constructed
before 1900
+
Certificate History
18 Jan 2018
59
78
Total Floor Area
77 sq m
Current CO2 Emissions Level
3.9
Potential CO2 Emissions Level
1.9
CO2 per sq m per Year
50
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
2
Address
4 Blackweir Cottages, Cardiff Castle Grounds
Date
3 Nov 2025
Current
Potential
75
90
Property Type
House
Built Form
End-Terrace
Constructed
before 1900
+
Certificate History
3 Nov 2025
75
90
Total Floor Area
197 sq m
Current CO2 Emissions Level
6.9
Potential CO2 Emissions Level
3.5
CO2 per sq m per Year
35
Mains Gas Available
Yes
Habitable Rooms
7
Number of Extensions
0
Address
The Studio, Cardiff Castle Grounds
Date
3 Nov 2025
Current
Potential
19
73
Property Type
Bungalow
Built Form
Detached
Constructed
before 1900
+
Certificate History
3 Nov 2025
19
73
3 Nov 2025
14
76
Total Floor Area
121 sq m
Current CO2 Emissions Level
2.6
Potential CO2 Emissions Level
1.5
CO2 per sq m per Year
22
Mains Gas Available
No
Habitable Rooms
3
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 2026.