Virtual Press Office reports from Great Britain that building officials are discovering modular building methods are gaining in popularity due to increased efficiency, sustainability and economy.  Research by the Building Cost Information Service (BCIS) on behalf of the Royal Institute of Chartered Surveyors (RICS) says 63 percent of traditional building projects are not completed on time, and only 49 percent come in at budget.  The majority of modular buildings have steel frames and are no longer seen as temporary structures, sometimes lasting longer than buildings using traditional materials and methods.  Green advantages of off-site construction include up to 90 percent less waste, 90 percent less vehicular trips to the site, up to 50 percent time savings, reduced future maintenance, and flexible buildings that can be expanded in the future.