"Any maintenance which does not affect structure, egress, fire protection systems, fire ratings, energy conservation provisions, plumbing, sanitary, gas, electrical, or other utilities.” Replacing a single cabinet may not require a permit but if there is electrical system getting affected, the work will require an electrical permit. For the same reason, replacing entire cabinet system will require authorization. Paving projects do not require a building permit but will require a permit from the Department of Public Works if work is being done within the public right-of-way. There are also zoning restrictions on the amount and location of paving, so check first with the Building Department.