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PROPERTY ENERGY EFFICIENCY CERTIFICATE DETAILS
Willowtree Avenue, DURHAM, DH1 1DZ

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 Willowtree Avenue, DH1 1DZ 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 Willowtree Avenue, DURHAM, DH1 1DZ
Period Covered: 2008 - 31 January 2025

Address
Inspection Date
Current
Potential
Property Type
Built Form
Constructed
Address
68 Willowtree Avenue
Date
30 May 2022
Current
Potential
55
74
Property Type
House
Built Form
Semi-Detached
Constructed
1967-1975
+
Certificate History
30 May 2022
55
74
5 Mar 2009
61
75
Total Floor Area
96 sq m
Current CO2 Emissions Level
5.4
Potential CO2 Emissions Level
3.3
CO2 per sq m per Year
57
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
1
Address
71 Willowtree Avenue
Date
27 Nov 2023
Current
Potential
59
78
Property Type
House
Built Form
Detached
Constructed
1967-1975
+
Certificate History
27 Nov 2023
59
78
Total Floor Area
119 sq m
Current CO2 Emissions Level
6.1
Potential CO2 Emissions Level
3.3
CO2 per sq m per Year
51
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
1
Address
77 Willowtree Avenue
Date
23 Sep 2014
Current
Potential
53
83
Property Type
House
Built Form
Semi-Detached
Constructed
1950-1966
+
Certificate History
23 Sep 2014
53
83
Total Floor Area
96 sq m
Current CO2 Emissions Level
5.9
Potential CO2 Emissions Level
2.0
CO2 per sq m per Year
61
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
1
Address
78 Willowtree Avenue
Date
22 Jan 2014
Current
Potential
61
77
Property Type
House
Built Form
Semi-Detached
Constructed
1967-1975
+
Certificate History
22 Jan 2014
61
77
20 Jun 2013
52
84
Total Floor Area
87 sq m
Current CO2 Emissions Level
4.0
Potential CO2 Emissions Level
2.4
CO2 per sq m per Year
46
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
1
Address
79 Willowtree Avenue
Date
19 Jul 2011
Current
Potential
69
74
Property Type
House
Built Form
Semi-Detached
Constructed
1967-1975
+
Certificate History
19 Jul 2011
69
74
Total Floor Area
131 sq m
Current CO2 Emissions Level
4.4
Potential CO2 Emissions Level
3.7
CO2 per sq m per Year
34
Mains Gas Available
Yes
Habitable Rooms
7
Number of Extensions
1
Address
80 Willowtree Avenue
Date
3 Nov 2014
Current
Potential
69
84
Property Type
House
Built Form
Semi-Detached
Constructed
1967-1975
+
Certificate History
3 Nov 2014
69
84
Total Floor Area
97 sq m
Current CO2 Emissions Level
3.6
Potential CO2 Emissions Level
1.9
CO2 per sq m per Year
37
Mains Gas Available
Yes
Habitable Rooms
7
Number of Extensions
2
Address
83 Willowtree Avenue
Date
7 Apr 2014
Current
Potential
64
73
Property Type
House
Built Form
Detached
Constructed
1967-1975
+
Certificate History
7 Apr 2014
64
73
Total Floor Area
149 sq m
Current CO2 Emissions Level
6.2
Potential CO2 Emissions Level
4.8
CO2 per sq m per Year
42
Mains Gas Available
Yes
Habitable Rooms
7
Number of Extensions
1
Address
84 Willowtree Avenue
Date
7 Oct 2021
Current
Potential
69
73
Property Type
Bungalow
Built Form
Semi-Detached
Constructed
1967-1975
+
Certificate History
7 Oct 2021
69
73
22 Aug 2021
68
84
22 Sep 2014
48
70
Total Floor Area
80 sq m
Current CO2 Emissions Level
2.6
Potential CO2 Emissions Level
2.0
CO2 per sq m per Year
33
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
1
Address
86 Willowtree Avenue
Date
7 Oct 2021
Current
Potential
74
81
Property Type
Bungalow
Built Form
Semi-Detached
Constructed
1967-1975
+
Certificate History
7 Oct 2021
74
81
22 Aug 2021
66
83
12 Aug 2014
66
83
Total Floor Area
89 sq m
Current CO2 Emissions Level
3.2
Potential CO2 Emissions Level
2.2
CO2 per sq m per Year
36
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
1
Address
87 Willowtree Avenue
Date
17 Dec 2009
Current
Potential
72
73
Property Type
House
Built Form
Detached
Constructed
1967-1975
+
Certificate History
17 Dec 2009
72
73
Total Floor Area
130 sq m
Current CO2 Emissions Level
4.2
Potential CO2 Emissions Level
4.0
CO2 per sq m per Year
32
Mains Gas Available
Yes
Habitable Rooms
7
Number of Extensions
1
Address
88 Willowtree Avenue
Date
13 Jan 2022
Current
Potential
75
80
Property Type
Bungalow
Built Form
Semi-Detached
Constructed
1967-1975
+
Certificate History
13 Jan 2022
75
80
22 Aug 2021
67
72
7 Aug 2014
62
81
12 May 2014
63
82
7 Apr 2010
49
69
Total Floor Area
80 sq m
Current CO2 Emissions Level
2.8
Potential CO2 Emissions Level
2.2
CO2 per sq m per Year
35
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
1
Address
89 Willowtree Avenue
Date
17 Apr 2024
Current
Potential
65
75
Property Type
House
Built Form
Detached
Constructed
1950-1966
+
Certificate History
17 Apr 2024
65
75
Total Floor Area
143 sq m
Current CO2 Emissions Level
5.9
Potential CO2 Emissions Level
4.4
CO2 per sq m per Year
41
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
2
Address
90 Willowtree Avenue
Date
22 Aug 2021
Current
Potential
68
85
Property Type
Bungalow
Built Form
Semi-Detached
Constructed
1967-1975
+
Certificate History
22 Aug 2021
68
85
Total Floor Area
69 sq m
Current CO2 Emissions Level
3.0
Potential CO2 Emissions Level
1.5
CO2 per sq m per Year
43
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
1
Address
92 Willowtree Avenue
Date
10 Jul 2018
Current
Potential
75
82
Property Type
Bungalow
Built Form
Semi-Detached
Constructed
1967-1975
+
Certificate History
10 Jul 2018
75
82
31 Aug 2014
67
83
27 Apr 2010
53
71
Total Floor Area
85 sq m
Current CO2 Emissions Level
2.8
Potential CO2 Emissions Level
1.9
CO2 per sq m per Year
33
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
1
Address
94 Willowtree Avenue
Date
11 Aug 2014
Current
Potential
49
85
Property Type
Bungalow
Built Form
Semi-Detached
Constructed
1950-1966
+
Certificate History
11 Aug 2014
49
85
Total Floor Area
64 sq m
Current CO2 Emissions Level
4.7
Potential CO2 Emissions Level
1.3
CO2 per sq m per Year
74
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
1
Address
98 Willowtree Avenue
Date
20 Nov 2013
Current
Potential
48
83
Property Type
Bungalow
Built Form
Semi-Detached
Constructed
1967-1975
+
Certificate History
20 Nov 2013
48
83
Total Floor Area
67 sq m
Current CO2 Emissions Level
5.0
Potential CO2 Emissions Level
1.5
CO2 per sq m per Year
74
Mains Gas Available
Yes
Habitable Rooms
4
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.

Contains public sector information licensed under the Open Government Licence v3.0.
Contains Royal Mail data © Royal Mail copyright and Database right 2025.