Publication title: Approved Document L1B: conservation of fuel and power in existing dwellings, 2010 edition (incorporating 2010, 2011, 2013, 2016 and 2018 amendments)
Date published: April 2018
This publication consolidates the 2010 edition of Approved Document L1B: Conservation of fuel and power in existing dwellings and subsequent amendments.
The 2010 edition (as amended) of Approved Document L1B came into effect on 1 October 2010.
The further set of amendments came into force on 6 April 2016, see details of these amendments.
The latest set of amendments came into force on 5 April 2018, see details of these amendments.
This Approved Document gives guidance for compliance with the Building Regulations for building work carried out in England. It also applies to building work carried out on excepted energy buildings in Wales as defined in the Welsh Ministers (Transfer of Functions) (No. 2) Order 2009.
This is the current edition of Approved Document L1B (Conservation of fuel and power in existing dwellings) incorporating all previous amendments.