Skip to main content

Unincorporated Hillsborough common residential replacements and trade inspections

Applies to: unincorporated

Flagged source reviewed 2026-10-16. How we check sources

Check what applies to your address

Get a free answer for your location and project, rather than relying only on this general guide.

See the $19 Project Kit

Need everything organized? For eligible projects, the optional $19 Project Kit brings your filing steps, official documents, fees and progress checklist together. Government fees are separate.

Common residential replacement work in unincorporated Hillsborough can involve building, electrical, mechanical, or plumbing permits even when the project is smaller than a full remodel. Hillsborough's inspection program specifically supports final or rough inspections for window and exterior-door replacement, garage-door replacement, AC changeout, water-heater replacement, electric-service repair/changeout, plumbing re-pipe, solar PV, and reroof work. Some narrowly defined nonstructural work can qualify for the County's permit-exemption process, but the exemption does not apply to electrical, plumbing, structural, mechanical, or gas work and does not waive other code or agency requirements. Resolve the exact scope before telling a homeowner that a replacement is permit-exempt.