Advanced

PROPERTY ENERGY EFFICIENCY CERTIFICATE DETAILS
Deanway, CHALFONT ST. GILES, HP8 4JR

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 Deanway, HP8 4JR 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 Deanway, CHALFONT ST. GILES, HP8 4JR
Period Covered: 2008 - 31 January 2025

Address
Inspection Date
Current
Potential
Property Type
Built Form
Constructed
Address
25 DEANWAY
Date
20 Jun 2021
Current
Potential
72
80
Property Type
House
Built Form
Detached
Constructed
1930-1949
+
Certificate History
20 Jun 2021
72
80
Total Floor Area
214 sq m
Current CO2 Emissions Level
5.9
Potential CO2 Emissions Level
4.3
CO2 per sq m per Year
27
Mains Gas Available
Yes
Habitable Rooms
7
Number of Extensions
3
Address
25 Deanway
Date
10 Aug 2011
Current
Potential
52
68
Property Type
House
Built Form
Detached
Constructed
1930-1949
+
Certificate History
10 Aug 2011
52
68
Total Floor Area
95 sq m
Current CO2 Emissions Level
5.7
Potential CO2 Emissions Level
3.6
CO2 per sq m per Year
61
Mains Gas Available
Yes
Habitable Rooms
7
Number of Extensions
2
Address
29 Deanway
Date
10 Feb 2022
Current
Potential
69
81
Property Type
House
Built Form
Detached
Constructed
1967-1975
+
Certificate History
10 Feb 2022
69
81
18 Dec 2012
47
69
Total Floor Area
192 sq m
Current CO2 Emissions Level
6.4
Potential CO2 Emissions Level
4.1
CO2 per sq m per Year
33
Mains Gas Available
Yes
Habitable Rooms
8
Number of Extensions
1
Address
31 Deanway
Date
1 Apr 2009
Current
Potential
57
58
Property Type
House
Built Form
Detached
Constructed
1950-1966
+
Certificate History
1 Apr 2009
57
58
Total Floor Area
107 sq m
Current CO2 Emissions Level
8.3
Potential CO2 Emissions Level
8.1
CO2 per sq m per Year
44
Mains Gas Available
Yes
Habitable Rooms
8
Number of Extensions
1
Address
33 Deanway
Date
18 Mar 2021
Current
Potential
55
71
Property Type
House
Built Form
Semi-Detached
Constructed
1900-1929
+
Certificate History
18 Mar 2021
55
71
15 Sep 2009
47
51
Total Floor Area
186 sq m
Current CO2 Emissions Level
9.3
Potential CO2 Emissions Level
6.0
CO2 per sq m per Year
50
Mains Gas Available
Yes
Habitable Rooms
8
Number of Extensions
3
Address
35 Deanway
Date
5 Aug 2009
Current
Potential
56
62
Property Type
House
Built Form
Semi-Detached
Constructed
1900-1929
+
Certificate History
5 Aug 2009
56
62
Total Floor Area
68 sq m
Current CO2 Emissions Level
4.0
Potential CO2 Emissions Level
3.5
CO2 per sq m per Year
67
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
1
Address
35a Deanway
Date
7 Aug 2022
Current
Potential
73
83
Property Type
House
Built Form
Detached
Constructed
1976-1982
+
Certificate History
7 Aug 2022
73
83
5 Aug 2009
1
45
Total Floor Area
142 sq m
Current CO2 Emissions Level
4.2
Potential CO2 Emissions Level
2.6
CO2 per sq m per Year
30
Mains Gas Available
Yes
Habitable Rooms
7
Number of Extensions
2
Address
38 Deanway
Date
21 Oct 2022
Current
Potential
57
77
Property Type
House
Built Form
Detached
Constructed
before 1900
+
Certificate History
21 Oct 2022
57
77
Total Floor Area
139 sq m
Current CO2 Emissions Level
7.1
Potential CO2 Emissions Level
3.8
CO2 per sq m per Year
51
Mains Gas Available
Yes
Habitable Rooms
7
Number of Extensions
2
Address
40 Deanway
Date
22 Aug 2021
Current
Potential
68
87
Property Type
House
Built Form
End-Terrace
Constructed
1900-1929
+
Certificate History
22 Aug 2021
68
87
25 Feb 2015
54
80
Total Floor Area
138 sq m
Current CO2 Emissions Level
5.0
Potential CO2 Emissions Level
1.9
CO2 per sq m per Year
36
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
2
Address
46 Deanway
Date
22 Jul 2009
Current
Potential
78
80
Property Type
House
Built Form
Detached
Constructed
2007 onwards
+
Certificate History
22 Jul 2009
78
80
Total Floor Area
239 sq m
Current CO2 Emissions Level
4.9
Potential CO2 Emissions Level
4.8
CO2 per sq m per Year
21
Mains Gas Available
Yes
Habitable Rooms
7
Number of Extensions
1
Address
46a Deanway
Date
11 Apr 2016
Current
Potential
61
66
Property Type
House
Built Form
Detached
Constructed
2007 onwards
+
Certificate History
11 Apr 2016
61
66
Total Floor Area
291 sq m
Current CO2 Emissions Level
8.8
Potential CO2 Emissions Level
7.7
CO2 per sq m per Year
30
Mains Gas Available
Yes
Habitable Rooms
8
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 2025.