This migration triggered new building developments, including modern six-story buildings in the "Maison Rouge" district. The city has considerably developed and extended with industrial areas and suburbs. The population of Vitré expanded from 8,212 inhabitants in 1931 to around 19,000 in 2018, a population multiplied by two. Inner-city areas are protected to conserve the town's rich heritage of art and architecture. In 1999, Vitré obtained the label "Town of Art and History" because of its rich cultural inheritance. The town's monuments attract many tourists each year.