You’ll need architectural, structural, and mechanical/plumbing/electrical (MPE) plans plus city or county building permits as of May 2025. HOA approval adds 4-8 weeks if your property is in an HOA community, and NV Energy may require approval for significant electrical loads. Kingdom & Co. manages all submittals and permitting as part of its design-build process, eliminating coordination headaches with separate professionals. This single-firm approach prevents finger-pointing when issues arise and saves months versus hiring separate architects, engineers, and contractors individually.