Launched in 1990, the Building Research Establishment Environmental Assessment Method (BREEAM) is the UK’s leading project infrastructure sustainability rating board. BREEAM rates the sustainability of structures based on a range (primarily 12) of environmentally friendly factors, these include and are not limited to; energy, waste, water, materials and land use. Each standard is rated according to a specified criterion, for example: relating to water ‘encourages sustainable water use in the operation of the building and its site. Issues in this section focus on identifying means of reducing potable water consumption (internal and external) over the lifetime of the building and minimising losses through leakage.’ (BREEAM, 2016) The overall BREEAM rating is a make-up of all the standards and is divided into 6 ranks; Outstanding (≥85), Excellent (≥70), Very good (≥55), Good (≥45), Pass (≥30) and Unclassified (<30). This blog will focus on a structure that is rated ‘Outstanding’. This rank only came in to place in 2008 to give an incentive to companies to aim higher. According to Tim Bevan (Principal Consultant BREAAM, BRE Global) ‘Many of those going for Outstanding already want to construct a highly sustainable building – that is their starting point and they tend to be very closely engaged in the process.’ (Building4Change, 2016).