Get all of the information required to help you navigate the permitting process.

Submit your Application and Schedule Pre-Site Inspection

After consulting with county planning staff, you and your team will submit your building permit application, along with your application fee, site plan and construction plan, to the Humboldt Planning and Building Department. You will also need to schedule a pre-site inspection after submitting your application. Your construction plan and fee deposit may be submitted at this time or after the pre-site inspection.

Icon image of calendar year highlighting the second three months identified for Permits and Application.

A Building Permit How-To Handout along with Site Plan and Construction Plan Checklists are available so you and your team can make sure the application is complete.You can submit your application through the either in person at the county offices or via email. Once your application is received, you will receive a record number within 1-2 days, and you can track your permit’s progress through the county’s Accela online permit management system. For any questions you may have, email To schedule your pre-site inspection, call (707) 445-7244. You do not need to be present for the inspection.

Doormat with Home written on it.

County reviews your Application and you receive Permits

The county will review your complete application, assign your project a Building Permit Specialist who will let you know about any issues that need to be addressed, and send it to any other departments or agencies that need to review it too. They will complete their review and provide any comments to you within 60 days. If they return with comments, you and your team will revise and resubmit the application. Most projects require one to three rounds of revisions and are reviewed at the staff level, meaning no hearings.

Once your application is approved and all fees are paid, you will be issued permits to start construction. The number and types of permits needed for an ADU varies, but all will require a building permit. Additional permits may be needed depending on your property.

Previous Step


Next Step