Part L – the revisions
In 2003 the European Parliament accepted Directive 2002/91/EC on the Energy Performance of Buildings (EPBD), aimed at greenhouse gas emissions reduction and compliance in energy requirements between the Member States. The main requirements of the EPBD are:
To harmonise energy calculation methods based on an overall energy performance
To set minimum energy requirements for new construction and large refurbishments
A mandatory energy certificate for new and existing buildings when they are constructed, sold or rented.
In England and Wales, the DCLG (now MHCLG) developed a whole building CO2
emission calculation methodology to meet the first requirement. This was introduced in the 2006 revision of Approved Document L.
The then government also proposed further revisions to Approved Document L in 2010, 2013, 2016 and 2019, with the objective of achieving zero carbon buildings by 2016 for dwellings and 2019 for buildings other than dwelling.
In July 2015, the government made a statement that:
The government does not intend to proceed with the zero carbon Allowable Solutions carbon offsetting scheme. It does not meet the requirements of the EPBD
The government will keep energy efficiency standards under review, recognising that existing measures to increase energy efficiency of new buildings should be allowed time to become established
This meant that the 2016 zero carbon homes target was dropped, as is the 2019 target for non-domestic zero carbon buildings
At present the government is still obligated to the nearly zero energy buildings by 2020.
The changes made in the revisions have significantly reduced the drive for increased building energy efficiency beyond 2013 regulatory requirements.
A number of local authorities have continued to promote CO2 emissions over 2010 regulation. and
energy performance, most notably London, where the “London plan” set requirements for new buildings that could deliver up to a 40% reduction in CO2
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