PROPERTY ENERGY EFFICIENCY CERTIFICATE DETAILS
Runsley, WELWYN GARDEN CITY, AL7 1NJ

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 Runsley, AL7 1NJ 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 Runsley, WELWYN GARDEN CITY, AL7 1NJ
Period Covered: 2008 - 31 October 2024

Address
Inspection Date
Current
Potential
Property Type
Built Form
Constructed
Address
1 Runsley
Date
16 May 2011
Current
Potential
67
71
Property Type
House
Built Form
Mid-Terrace
Constructed
1950-1966
+
Certificate History
16 May 2011
67
71
Total Floor Area
87 sq m
Current CO2 Emissions Level
3.3
Potential CO2 Emissions Level
2.9
CO2 per sq m per Year
38
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
0
Address
10 RUNSLEY, WELWYN GARDEN CITY
Date
20 Oct 2020
Current
Potential
72
83
Property Type
House
Built Form
Semi-Detached
Constructed
1950-1966
+
Certificate History
20 Oct 2020
72
83
Total Floor Area
124 sq m
Current CO2 Emissions Level
3.9
Potential CO2 Emissions Level
2.3
CO2 per sq m per Year
32
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
1
Address
11 Runsley
Date
11 Jun 2012
Current
Potential
67
85
Property Type
House
Built Form
End-Terrace
Constructed
1967-1975
+
Certificate History
11 Jun 2012
67
85
Total Floor Area
87 sq m
Current CO2 Emissions Level
3.2
Potential CO2 Emissions Level
1.3
CO2 per sq m per Year
37
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
14 Runsley
Date
6 Sep 2024
Current
Potential
58
79
Property Type
House
Built Form
Detached
Constructed
1967-1975
+
Certificate History
6 Sep 2024
58
79
Total Floor Area
132 sq m
Current CO2 Emissions Level
6.6
Potential CO2 Emissions Level
3.2
CO2 per sq m per Year
50
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
2
Address
18 Runsley
Date
20 Aug 2020
Current
Potential
57
84
Property Type
House
Built Form
Detached
Constructed
1950-1966
+
Certificate History
20 Aug 2020
57
84
Total Floor Area
106 sq m
Current CO2 Emissions Level
5.6
Potential CO2 Emissions Level
1.9
CO2 per sq m per Year
52
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
1
Address
20 Runsley
Date
5 Dec 2008
Current
Potential
56
72
Property Type
House
Built Form
Detached
Constructed
1967-1975
+
Certificate History
5 Dec 2008
56
72
Total Floor Area
44 sq m
Current CO2 Emissions Level
4.8
Potential CO2 Emissions Level
3.1
CO2 per sq m per Year
59
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
22 Runsley
Date
8 May 2022
Current
Potential
71
75
Property Type
Flat
Built Form
End-Terrace
Constructed
1967-1975
+
Certificate History
8 May 2022
71
75
10 Apr 2012
70
71
Total Floor Area
39 sq m
Current CO2 Emissions Level
1.7
Potential CO2 Emissions Level
1.3
CO2 per sq m per Year
42
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
24 Runsley
Date
25 May 2009
Current
Potential
81
82
Property Type
Flat
Built Form
End-Terrace
Constructed
1950-1966
+
Certificate History
25 May 2009
81
82
Total Floor Area
40 sq m
Current CO2 Emissions Level
1.3
Potential CO2 Emissions Level
1.3
CO2 per sq m per Year
33
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
28 Runsley
Date
25 Jun 2019
Current
Potential
69
75
Property Type
Flat
Built Form
End-Terrace
Constructed
1950-1966
+
Certificate History
25 Jun 2019
69
75
13 Jul 2009
78
82
Total Floor Area
40 sq m
Current CO2 Emissions Level
1.8
Potential CO2 Emissions Level
1.3
CO2 per sq m per Year
45
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
3 Runsley
Date
4 Jul 2018
Current
Potential
63
83
Property Type
House
Built Form
Mid-Terrace
Constructed
1950-1966
+
Certificate History
4 Jul 2018
63
83
Total Floor Area
70 sq m
Current CO2 Emissions Level
3.1
Potential CO2 Emissions Level
1.3
CO2 per sq m per Year
45
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
2
Address
34 Runsley
Date
17 Jan 2017
Current
Potential
73
74
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1950-1966
+
Certificate History
17 Jan 2017
73
74
Total Floor Area
40 sq m
Current CO2 Emissions Level
1.5
Potential CO2 Emissions Level
1.4
CO2 per sq m per Year
37
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
36 Runsley
Date
17 Aug 2016
Current
Potential
73
76
Property Type
Flat
Built Form
End-Terrace
Constructed
1950-1966
+
Certificate History
17 Aug 2016
73
76
8 Nov 2010
72
80
Total Floor Area
41 sq m
Current CO2 Emissions Level
1.5
Potential CO2 Emissions Level
1.3
CO2 per sq m per Year
38
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
37 Runsley
Date
1 Mar 2019
Current
Potential
70
73
Property Type
Flat
Built Form
Detached
Constructed
1950-1966
+
Certificate History
1 Mar 2019
70
73
29 Apr 2009
64
70
Total Floor Area
39 sq m
Current CO2 Emissions Level
1.7
Potential CO2 Emissions Level
1.5
CO2 per sq m per Year
44
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
38 Runsley
Date
31 Jan 2018
Current
Potential
66
74
Property Type
Flat
Built Form
Detached
Constructed
1950-1966
+
Certificate History
31 Jan 2018
66
74
Total Floor Area
40 sq m
Current CO2 Emissions Level
2.1
Potential CO2 Emissions Level
1.4
CO2 per sq m per Year
53
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
39 Runsley
Date
5 May 2009
Current
Potential
78
82
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1950-1966
+
Certificate History
5 May 2009
78
82
Total Floor Area
40 sq m
Current CO2 Emissions Level
1.5
Potential CO2 Emissions Level
1.2
CO2 per sq m per Year
38
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
39 RUNSLEY, WELWYN GARDEN CITY
Date
21 Dec 2020
Current
Potential
76
76
Property Type
Flat
Built Form
Semi-Detached
Constructed
1950-1966
+
Certificate History
21 Dec 2020
76
76
Total Floor Area
40 sq m
Current CO2 Emissions Level
1.2
Potential CO2 Emissions Level
1.2
CO2 per sq m per Year
31
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
40 Runsley
Date
24 May 2020
Current
Potential
69
73
Property Type
Flat
Built Form
Detached
Constructed
1950-1966
+
Certificate History
24 May 2020
69
73
Total Floor Area
40 sq m
Current CO2 Emissions Level
1.8
Potential CO2 Emissions Level
1.5
CO2 per sq m per Year
46
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
41 Runsley
Date
7 Sep 2014
Current
Potential
67
76
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1950-1966
+
Certificate History
7 Sep 2014
67
76
Total Floor Area
40 sq m
Current CO2 Emissions Level
1.9
Potential CO2 Emissions Level
1.2
CO2 per sq m per Year
47
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
42 Runsley
Date
18 Jun 2024
Current
Potential
72
74
Property Type
Flat
Built Form
Detached
Constructed
1967-1975
+
Certificate History
18 Jun 2024
72
74
Total Floor Area
40 sq m
Current CO2 Emissions Level
1.6
Potential CO2 Emissions Level
1.4
CO2 per sq m per Year
41
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
43 Runsley
Date
11 Aug 2014
Current
Potential
70
74
Property Type
Flat
Built Form
Semi-Detached
Constructed
1950-1966
+
Certificate History
11 Aug 2014
70
74
Total Floor Area
40 sq m
Current CO2 Emissions Level
1.7
Potential CO2 Emissions Level
1.3
CO2 per sq m per Year
41
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
45 RUNSLEY
Date
27 Jul 2021
Current
Potential
69
75
Property Type
Flat
Built Form
Semi-Detached
Constructed
1967-1975
+
Certificate History
27 Jul 2021
69
75
Total Floor Area
40 sq m
Current CO2 Emissions Level
1.8
Potential CO2 Emissions Level
1.3
CO2 per sq m per Year
46
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
45 Runsley
Date
18 Sep 2011
Current
Potential
67
77
Property Type
Flat
Built Form
Semi-Detached
Constructed
1950-1966
+
Certificate History
18 Sep 2011
67
77
Total Floor Area
40 sq m
Current CO2 Emissions Level
2.0
Potential CO2 Emissions Level
1.2
CO2 per sq m per Year
49
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
46 Runsley
Date
16 Jan 2014
Current
Potential
51
69
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1950-1966
+
Certificate History
16 Jan 2014
51
69
Total Floor Area
41 sq m
Current CO2 Emissions Level
3.2
Potential CO2 Emissions Level
1.8
CO2 per sq m per Year
79
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
48 Runsley
Date
5 Sep 2012
Current
Potential
70
70
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1967-1975
+
Certificate History
5 Sep 2012
70
70
23 Jun 2010
67
76
4 Nov 2008
54
61
Total Floor Area
41 sq m
Current CO2 Emissions Level
1.7
Potential CO2 Emissions Level
1.7
CO2 per sq m per Year
42
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
50 RUNSLEY
Date
18 Jul 2021
Current
Potential
75
76
Property Type
Flat
Built Form
Mid-Terrace
Constructed
1950-1966
+
Certificate History
18 Jul 2021
75
76
Total Floor Area
40 sq m
Current CO2 Emissions Level
1.4
Potential CO2 Emissions Level
1.2
CO2 per sq m per Year
34
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
50 Runsley
Date
22 Oct 2008
Current
Potential
68
82
Property Type
House
Built Form
Semi-Detached
Constructed
1950-1966
+
Certificate History
22 Oct 2008
68
82
Total Floor Area
40 sq m
Current CO2 Emissions Level
2.3
Potential CO2 Emissions Level
1.3
CO2 per sq m per Year
58
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
52 Runsley
Date
23 Feb 2009
Current
Potential
74
80
Property Type
Flat
Built Form
End-Terrace
Constructed
1967-1975
+
Certificate History
23 Feb 2009
74
80
Total Floor Area
40 sq m
Current CO2 Emissions Level
1.9
Potential CO2 Emissions Level
1.4
CO2 per sq m per Year
47
Mains Gas Available
Yes
Habitable Rooms
2
Number of Extensions
0
Address
54 Runsley
Date
26 Sep 2014
Current
Potential
50
85
Property Type
House
Built Form
Semi-Detached
Constructed
1967-1975
+
Certificate History
26 Sep 2014
50
85
Total Floor Area
85 sq m
Current CO2 Emissions Level
5.2
Potential CO2 Emissions Level
1.3
CO2 per sq m per Year
61
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
0
Address
57 Runsley
Date
27 Apr 2017
Current
Potential
63
72
Property Type
House
Built Form
Semi-Detached
Constructed
1950-1966
+
Certificate History
27 Apr 2017
63
72
Total Floor Area
117 sq m
Current CO2 Emissions Level
4.6
Potential CO2 Emissions Level
3.5
CO2 per sq m per Year
39
Mains Gas Available
Yes
Habitable Rooms
6
Number of Extensions
2
Address
58 Runsley
Date
14 May 2024
Current
Potential
69
83
Property Type
House
Built Form
Semi-Detached
Constructed
1950-1966
+
Certificate History
14 May 2024
69
83
3 Jul 2018
56
84
Total Floor Area
85 sq m
Current CO2 Emissions Level
3.3
Potential CO2 Emissions Level
1.7
CO2 per sq m per Year
38
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
6 Runsley
Date
1 May 2015
Current
Potential
71
86
Property Type
House
Built Form
Semi-Detached
Constructed
1950-1966
+
Certificate History
1 May 2015
71
86
Total Floor Area
86 sq m
Current CO2 Emissions Level
2.8
Potential CO2 Emissions Level
1.3
CO2 per sq m per Year
33
Mains Gas Available
Yes
Habitable Rooms
4
Number of Extensions
0
Address
61 Runsley
Date
9 Sep 2012
Current
Potential
66
79
Property Type
House
Built Form
End-Terrace
Constructed
1950-1966
+
Certificate History
9 Sep 2012
66
79
Total Floor Area
141 sq m
Current CO2 Emissions Level
4.9
Potential CO2 Emissions Level
3.1
CO2 per sq m per Year
35
Mains Gas Available
Yes
Habitable Rooms
7
Number of Extensions
2
Address
63 Runsley
Date
17 Aug 2015
Current
Potential
53
84
Property Type
House
Built Form
Mid-Terrace
Constructed
1950-1966
+
Certificate History
17 Aug 2015
53
84
Total Floor Area
89 sq m
Current CO2 Emissions Level
5.5
Potential CO2 Emissions Level
1.6
CO2 per sq m per Year
62
Mains Gas Available
Yes
Habitable Rooms
5
Number of Extensions
3
Address
64 Runsley
Date
4 Jul 2024
Current
Potential
65
84
Property Type
House
Built Form
Mid-Terrace
Constructed
1950-1966
+
Certificate History
4 Jul 2024
65
84
Total Floor Area
73 sq m
Current CO2 Emissions Level
3.3
Potential CO2 Emissions Level
1.4
CO2 per sq m per Year
44
Mains Gas Available
Yes
Habitable Rooms
3
Number of Extensions
0
Address
8 Runsley
Date
21 Sep 2015
Current
Potential
73
88
Property Type
House
Built Form
Semi-Detached
Constructed
1976-1982
+
Certificate History
21 Sep 2015
73
88
5 Sep 2011
57
72
Total Floor Area
84 sq m
Current CO2 Emissions Level
2.5
Potential CO2 Emissions Level
1.1
CO2 per sq m per Year
30
Mains Gas Available
Yes
Habitable Rooms
4
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.

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Contains Royal Mail data © Royal Mail copyright and Database right 2025.