Modular offices and buildings offer benefits that traditional stick built can’t. For example, a typical 8’x 10’ can be completed turnkey, in one day. That would include ceiling, doors, windows, AC, insulation and electrical components that would take weeks, with all the trades that would be involved. More importantly, with recent changes in the law, this building can be written off in the first year, opposed to stick built, which has to be depreciated over the course of 39.5 years.