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  1. Building Regulations (cy)
  2. Approved documents
  3. Approved Document L (Conservation of fuel and power)
  4. Approved Document L - Conservation of fuel and power

Approved Document L - Conservation of fuel and power

Dim ar gael Cyfieithu Cymraeg

Dim ond yn Saesneg y mae’r adran hon o’r wefan ar gael ar hyn o bryd. Hoffem ymddiheuro am unrhyw drafferth y mae hynny’n ei beri.

The current version of 'Approved Document L: Conservation of fuel and power' is split into four parts, click the links below to access the individual parts or the archived versions:

Approved Document L1A: Conservation of fuel and power (New dwellings)

Approved Document L1A - Wales - Conservation of Fuel and power (new dwellings)

Publication title: Approved Document L1A: Conservation of fuel and power (New dwellings)
Date published: 31 July 2014
ISBN: 978 1 4734 0956 9
Price: Web only

Summary

This 2014 edition of Approved Document L1A - Conservation of fuel and power (New dwellings), is the current edition for use in Wales.  It came into effect on 31 July 2014 and replaces the 2010 edition (incorporating further 2010 amendments) for England and Wales

Download

Approved Document L1A: Conservation of Fuel & Power (New Dwellings) (2014 edition) for Wales. (PDF 535KB)

 

Approved Document L1B: Conservation of fuel and power (Existing dwellings)

Approved Document L1B - Wales - Conservation of Fuel and power (existing dwellings)

Publication title: Approved Document L1B: Conservation of fuel and power (Existing dwellings)
Date published: 31 July 2014
ISBN: 978 1 4734 0957 6
Price: Web only

Summary

This 2014 edition of Approved Document L1B - Conservation of fuel and power (Existing dwellings), is the current edition for use in Wales.  It came into effect on 31 July 2014 and replaces the 2010 edition (incorporating further 2010 amendments) for England and Wales.

Download

Approved Document L1B: Conservation of Fuel & Power (Existing Dwellings) (2014 edition) for Wales. (PDF 498KB)

 

Approved Document L2A: Conservation of fuel and power (New buildings other than dwellings)

Approved Document L2A - Wales - Conservation of Fuel and power (new buildings and other dwellings)

Publication title: Approved Document L2A: Conservation of fuel and power (New buildings other than dwellings)
Date published: 31 July 2014
ISBN: 978 1 4734 0958 3
Price: Web only

Summary

This 2014 edition of Approved Document L2A - Conservation of fuel and power (New Buildings other than Dwellings), is the current edition for use in Wales.  It came into effect on 31 July 2014 and replaces the 2010 edition (incorporating further 2010 amendments) for England and Wales.

Download

Approved Document L2A: Conservation of Fuel & Power (New Buildings other than Dwellings) (2014 edition) for Wales. (PDF 542KB)

 

Approved Document L2B: Conservation of fuel and power (Existing buildings other than dwellings)

Approved Document L2B - Wales - Conservation of Fuel and power (existing buildings other than dwellings)

Publication title: Approved Document L2B: Conservation of fuel and power (Existing buildings other than dwellings) (2010 edition)
Date published: 31 July 2014
ISBN: 978 1 4734 0959 0
Price: Web only

Summary

This 2014 edition of Approved Document L2B - Conservation of fuel and power (Existing Buildings other than Dwellings), is the current edition for use in Wales.  It came into effect on 31 July 2014 and replaces the 2010 edition (incorporating further 2010 amendments) for England and Wales.

Download

Approved Document L2B: Conservation of Fuel & Power (Existing Buildings other than Dwellings) (2014 edition) for Wales. (PDF 613KB)

 

Applications for any new building work that are made to Building Control Bodies on or after 31 July 2014 should follow the guidance contained in the 2014 editions of the Part L Approved Documents.

Any applications that are received before 31 July 2014 should follow the guidance contained in the 2010 editions of the Part L Approved Documents (incorporating 2007 and further 2010 amendments).

 

Archived Versions

2010 Editions:

Please note these archived versions do not incorporate the changes made as a result of the Building Regulations 2010 and Building (Approved Inspectors etc) Regulations 2010. An Amendment Slip is attached within these 2010 PDF Approved Documents which outlines the regulation numbering changes between the 2000 Regulations and the 2010 Regulations only.

2006 Editions:

Interim 2005 Editions:

From this version onwards, the Approved Document was split into four parts.

2002 Editions:

The 2002 edition was split into two parts:

1995 Edition:

 

Copyright

See specific copyright terms which apply to the approved documents.