Résumé en anglais
There are approximately 2000 locally designated historic districts in the United States. Local zoning ordinances are the legal means by which municipalities designate districts and appoint preservation commissions that review proposed alterations and demolitions to existing buildings and all new construction within district boundaries. Commissions usually consist of fiveto nine members with representatives from the preservation,
design, legal, and real estate professions as well as propertyowners in the district(s).