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Building permits

Building, trade and occupancy permits explained

Understand how building, electrical, plumbing, mechanical, fire and occupancy reviews may connect.Published and reviewed August 20, 2026 ยท Educational information only

Building review

The primary building permit commonly evaluates plans against adopted building and zoning rules, but requirements differ by jurisdiction and project.

Trade permits

Electrical, plumbing, mechanical and fire-protection work may require separate applications, licensed contractors and inspections.

Inspections and corrections

Approved plans do not eliminate field inspections. Corrections may require revised documents, responses or additional professional review.

Certificate of occupancy

New uses, major renovations and changes in occupancy may require final agency approvals before the space can lawfully open.