1:5:200

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The expression “1:5:200” originated in a paper by Evans et al, (The Long Term Costs of Owning and Using Buildings) as a guide to illustrate the cost of ownership of new office buildings, where if the capital construction cost is a unit of 1, the facilities management cost will be a factor of 5 and the operating costs a factor of 200, both over a 20 year life.

Whilst the cost ratios behind 1:5:200 will vary with each facility, 1:5:200 has evolved beyond its cost origins and has been accepted into the built environment lexicon or zeitgeist, synonymous with the concept of an integrated built environment industry, representing the relationships, integrations and collaborations as well as the leverage and impact of the various sectors within a built environment sector.

Views from the facilities management sector and property management sector see the 1:5:200 from their perspective, with facilities management viewing facilities management as a unit of 1, (see 1:10:100) and property management starting from operating costs as a unit of 1.

The key drivers for exploring the emerging importance and understanding of 1:5:200 are CFM and BE mainly through their collaborative facilities management working group becfm, and be’s value working group.

1:5:200 has also be used to illustrate the leverage and impact of sustainability factors between the design, build, facilities management and operating industries within an integrated built environment sector

1:5:200 may well be an emergent pattern from the complex systems, issues and circumstances that exist within the built environment sector