commercial office building suitable for use with rack or shelf mount computing systems is disclosed the sole figure is a perspective view of an illustrative implementation of a data center facility 10 suitable for use with rack and or shelf mount computing systems the data center facility 10 may be constructed in situ in dedicated space 12 provided in multi tenant commercial office building and includes at least one computing module 20 each with multiple computing units on shelves or racks 22 in the example shown in the sole figure the data center 10 as is also provided with a power and cooling equipment 14 16 containing power generation equipment and cooling equipment e g compressor s heat exchangers circulation pumps controls etc network interconnection points respectively blower motors not shown may extend from the rack or be incorporated within the rack designs 22 to expel and recirculate warm air to produce cooling within the facility depending upon available space the racks or shelves 22 may be arranged so as to provide a walkway 28 for service access and or to facilitate temperature and or humidity control in addition a workbench 30 can optionally be provided along with an equipment staging area 32 a access control based security area 34 is also provided in.