Permit requirements depend on scope and jurisdiction. Most structural, electrical, plumbing, mechanical, and exterior changes require permits from the City of Denver or the appropriate municipality (Greenwood Village, Centennial, Cherry Hills Village, Englewood, Littleton, etc.). Pure cosmetic work — paint, flooring, like-for-like fixture swaps — usually doesn't. We pull permits in our company name, schedule and meet inspectors, and keep documentation in your project file. You don't have to chase a permit office.