The architect was William Le Baron Jenney. The building weighed only one-third as much as a masonry building would have; city officials were so concerned, they halted construction while they investigated its safety. The Home Insurance Building is an example of the Chicago School of Architecture. The building set precedents in skyscraper construction. Minneapolis architect Leroy Buffington patented the concept of the skeletal-frame tall building in 1888 and proposed "a 28-story 'stratosphere-scraper'—a notion mocked by the architectural press of the time as impractical and ludicrous. " His proposal nonetheless attracted the attention of the national architectural and building communities to the possibilities of iron skeletal framing, "which in primitive form had been around for decades. "