Modern methods of construction is a collective term used to describe a number of construction methods. The methods being introduced into UK house building differ significantly from so-called conventional construction methods such as brick and block.
There is a great deal of debate within the industry at present about what constitutes MMC and as a result there is no universally agreed definition. In 2003 the Housing Corporation published a construction classification system (Box 1) that is used for its own purposes,which has been adapted by others.
While it is recognised that a definition based on attributes such as efficiency and quality may be more logical, the fact remains that most MMC being constructed at present is subject to Housing Corporation grants, or is on English Partnership sites: in both cases their selection criteria use the Housing Corporation classification system. The information in this guide is therefore based on that system.
There are many other terms used in the context of MMC (see Box 2) but, in order to prevent confusion, they are not used in this guide.