PROPERTY ENERGY EFFICIENCY CERTIFICATE DETAILS
Castilian Street, NORTHAMPTON, NN1 1JY
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 Castilian Street, NN1 1JY 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 Castilian Street, NORTHAMPTON, NN1 1JY
Period Covered:
2008 - 31 January 2025
Address
Inspection Date
Current
Potential
Property Type
Built Form
Constructed
Address
Flat 1, 2a Castilian Street
Date
20 May 2024
Current
Potential
82
87
Property Type
Flat
Built Form
Mid-Terrace
Constructed
2007-2011
Certificate History
20 May 2024
82
87
10 Jul 2018
72
72
Total Floor Area
15 sq m
Current CO2 Emissions Level
0.9
Potential CO2 Emissions Level
0.9
CO2 per sq m per Year
60
Mains Gas Available
No
Habitable Rooms
1
Number of Extensions
0
Address
Flat 10, 2a Castilian Street
Date
20 May 2024
Current
Potential
84
88
Property Type
Flat
Built Form
Mid-Terrace
Constructed
2007-2011
Certificate History
20 May 2024
84
88
10 Jul 2018
81
81
Total Floor Area
11 sq m
Current CO2 Emissions Level
0.8
Potential CO2 Emissions Level
0.8
CO2 per sq m per Year
68
Mains Gas Available
No
Habitable Rooms
1
Number of Extensions
0
Address
Flat 11, 2a Castilian Street
Date
20 May 2024
Current
Potential
84
88
Property Type
Flat
Built Form
Mid-Terrace
Constructed
2007-2011
Certificate History
20 May 2024
84
88
10 Jul 2018
78
78
Total Floor Area
14 sq m
Current CO2 Emissions Level
0.8
Potential CO2 Emissions Level
0.8
CO2 per sq m per Year
56
Mains Gas Available
No
Habitable Rooms
1
Number of Extensions
0
Address
Flat 12, 2a Castilian Street
Date
20 May 2024
Current
Potential
78
86
Property Type
Flat
Built Form
Mid-Terrace
Constructed
2007-2011
Certificate History
20 May 2024
78
86
10 Jul 2018
76
76
Total Floor Area
18 sq m
Current CO2 Emissions Level
0.9
Potential CO2 Emissions Level
1.0
CO2 per sq m per Year
51
Mains Gas Available
No
Habitable Rooms
1
Number of Extensions
0
Address
Flat 13, 2a Castilian Street
Date
10 Jul 2018
Current
Potential
78
78
Property Type
Flat
Built Form
Detached
Constructed
N/A
Certificate History
10 Jul 2018
78
78
Total Floor Area
14 sq m
Current CO2 Emissions Level
0.8
Potential CO2 Emissions Level
0.8
CO2 per sq m per Year
60
Mains Gas Available
No
Habitable Rooms
0
Number of Extensions
0
Address
Flat 14, 2a Castilian Street
Date
20 May 2024
Current
Potential
78
87
Property Type
Flat
Built Form
Mid-Terrace
Constructed
2007-2011
Certificate History
20 May 2024
78
87
10 Jul 2018
74
74
Total Floor Area
18 sq m
Current CO2 Emissions Level
0.9
Potential CO2 Emissions Level
0.9
CO2 per sq m per Year
52
Mains Gas Available
No
Habitable Rooms
1
Number of Extensions
0
Address
Flat 15, 2a Castilian Street
Date
20 May 2024
Current
Potential
81
88
Property Type
Flat
Built Form
Mid-Terrace
Constructed
2007-2011
Certificate History
20 May 2024
81
88
10 Jul 2018
75
75
Total Floor Area
19 sq m
Current CO2 Emissions Level
0.8
Potential CO2 Emissions Level
0.9
CO2 per sq m per Year
43
Mains Gas Available
No
Habitable Rooms
1
Number of Extensions
0
Address
Flat 16, 2a Castilian Street
Date
20 May 2024
Current
Potential
83
87
Property Type
Flat
Built Form
Mid-Terrace
Constructed
2007-2011
Certificate History
20 May 2024
83
87
10 Jul 2018
80
80
Total Floor Area
12 sq m
Current CO2 Emissions Level
0.8
Potential CO2 Emissions Level
0.8
CO2 per sq m per Year
67
Mains Gas Available
No
Habitable Rooms
1
Number of Extensions
0
Address
Flat 17, 2a Castilian Street
Date
20 May 2024
Current
Potential
83
87
Property Type
Flat
Built Form
Mid-Terrace
Constructed
2007-2011
Certificate History
20 May 2024
83
87
10 Jul 2018
79
79
Total Floor Area
12 sq m
Current CO2 Emissions Level
0.8
Potential CO2 Emissions Level
0.8
CO2 per sq m per Year
67
Mains Gas Available
No
Habitable Rooms
1
Number of Extensions
0
Address
Flat 18, 2a Castilian Street
Date
20 May 2024
Current
Potential
83
87
Property Type
Flat
Built Form
Mid-Terrace
Constructed
2007-2011
Certificate History
20 May 2024
83
87
10 Jul 2018
79
79
Total Floor Area
14 sq m
Current CO2 Emissions Level
0.9
Potential CO2 Emissions Level
0.9
CO2 per sq m per Year
62
Mains Gas Available
No
Habitable Rooms
1
Number of Extensions
0
Address
Flat 19, 2a Castilian Street
Date
20 May 2024
Current
Potential
74
84
Property Type
Flat
Built Form
Mid-Terrace
Constructed
2007-2011
Certificate History
20 May 2024
74
84
10 Jul 2018
79
79
Total Floor Area
18 sq m
Current CO2 Emissions Level
1.1
Potential CO2 Emissions Level
1.2
CO2 per sq m per Year
60
Mains Gas Available
No
Habitable Rooms
1
Number of Extensions
0
Address
Flat 2, 2a Castilian Street
Date
20 May 2024
Current
Potential
80
88
Property Type
Flat
Built Form
Mid-Terrace
Constructed
2007-2011
Certificate History
20 May 2024
80
88
10 Jul 2018
71
71
Total Floor Area
14 sq m
Current CO2 Emissions Level
0.8
Potential CO2 Emissions Level
0.8
CO2 per sq m per Year
57
Mains Gas Available
No
Habitable Rooms
1
Number of Extensions
0
Address
Flat 20, 2a Castilian Street
Date
20 May 2024
Current
Potential
78
87
Property Type
Flat
Built Form
Mid-Terrace
Constructed
2007-2011
Certificate History
20 May 2024
78
87
10 Jul 2018
74
74
Total Floor Area
16 sq m
Current CO2 Emissions Level
0.9
Potential CO2 Emissions Level
0.9
CO2 per sq m per Year
56
Mains Gas Available
No
Habitable Rooms
1
Number of Extensions
0
Address
Flat 21, 2a Castilian Street
Date
20 May 2024
Current
Potential
80
87
Property Type
Flat
Built Form
Mid-Terrace
Constructed
2007-2011
Certificate History
20 May 2024
80
87
10 Jul 2018
78
78
Total Floor Area
19 sq m
Current CO2 Emissions Level
0.9
Potential CO2 Emissions Level
1.0
CO2 per sq m per Year
45
Mains Gas Available
No
Habitable Rooms
1
Number of Extensions
0
Address
Flat 3, 2a Castilian Street
Date
20 May 2024
Current
Potential
71
85
Property Type
Flat
Built Form
Mid-Terrace
Constructed
2007-2011
Certificate History
20 May 2024
71
85
10 Jul 2018
83
83
Total Floor Area
20 sq m
Current CO2 Emissions Level
1.3
Potential CO2 Emissions Level
1.1
CO2 per sq m per Year
63
Mains Gas Available
No
Habitable Rooms
1
Number of Extensions
0
Address
Flat 4, 2a Castilian Street
Date
20 May 2024
Current
Potential
81
86
Property Type
Flat
Built Form
Mid-Terrace
Constructed
2007-2011
Certificate History
20 May 2024
81
86
10 Jul 2018
81
81
Total Floor Area
17 sq m
Current CO2 Emissions Level
1.0
Potential CO2 Emissions Level
1.0
CO2 per sq m per Year
58
Mains Gas Available
No
Habitable Rooms
1
Number of Extensions
0
Address
Flat 5, 2a Castilian Street
Date
20 May 2024
Current
Potential
83
87
Property Type
Flat
Built Form
Mid-Terrace
Constructed
2007-2011
Certificate History
20 May 2024
83
87
10 Jul 2018
69
69
Total Floor Area
11 sq m
Current CO2 Emissions Level
0.8
Potential CO2 Emissions Level
0.8
CO2 per sq m per Year
73
Mains Gas Available
No
Habitable Rooms
1
Number of Extensions
0
Address
Flat 6, 2a Castilian Street
Date
20 May 2024
Current
Potential
83
87
Property Type
Flat
Built Form
Mid-Terrace
Constructed
2007-2011
Certificate History
20 May 2024
83
87
10 Jul 2018
73
73
Total Floor Area
12 sq m
Current CO2 Emissions Level
0.8
Potential CO2 Emissions Level
0.8
CO2 per sq m per Year
68
Mains Gas Available
No
Habitable Rooms
1
Number of Extensions
0
Address
Flat 7, 2a Castilian Street
Date
20 May 2024
Current
Potential
78
87
Property Type
Flat
Built Form
Mid-Terrace
Constructed
2007-2011
Certificate History
20 May 2024
78
87
10 Jul 2018
73
73
Total Floor Area
14 sq m
Current CO2 Emissions Level
0.8
Potential CO2 Emissions Level
0.8
CO2 per sq m per Year
60
Mains Gas Available
No
Habitable Rooms
1
Number of Extensions
0
Address
Flat 8, 2a Castilian Street
Date
20 May 2024
Current
Potential
74
84
Property Type
Flat
Built Form
Mid-Terrace
Constructed
2007-2011
Certificate History
20 May 2024
74
84
10 Jul 2018
70
70
Total Floor Area
18 sq m
Current CO2 Emissions Level
1.1
Potential CO2 Emissions Level
1.2
CO2 per sq m per Year
60
Mains Gas Available
No
Habitable Rooms
1
Number of Extensions
0
Address
Flat 9, 2a Castilian Street
Date
20 May 2024
Current
Potential
84
88
Property Type
Flat
Built Form
Mid-Terrace
Constructed
2007-2011
Certificate History
20 May 2024
84
88
10 Jul 2018
78
78
Total Floor Area
11 sq m
Current CO2 Emissions Level
0.8
Potential CO2 Emissions Level
0.8
CO2 per sq m per Year
68
Mains Gas Available
No
Habitable Rooms
1
Number of Extensions
0
Bands
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.