What is a building permit?

What this means for your home project

1. For a San Luis Obispo County project, read the inspection card and identify the work needed before the next inspection. (source)
2. For an Oregon BCD-administered project, ask the contractor to list the permits they will obtain in the written scope; confirm that responsibility before work starts. (source)
3. For an Oregon BCD-administered project, arrange the next inspection before covering the work. (source)
4. Keep the inspection results and project close-out documents together, as Oregon BCD advises. (source)

When is a construction permit needed?

Building or altering a structure or its systems can require a construction permit. San Luis Obispo County names “plumbing, mechanical, or electrical systems” in its guidance for unincorporated areas; grading may need a separate permit (read 2026-11-06). (source)

“A construction permit is needed for almost any project that involves building or altering a structure or its plumbing, mechanical, or electrical systems.” (source) “If your project requires grading, a separate grading permit may also be required.” (source)

When can I start work on my construction project?

Construction must wait for permit issuance under San Luis Obispo County guidance for unincorporated areas. The county says “no work be done until the construction permit is actually issued”; a pre-issuance site inspection can reveal problems requiring plan changes (read 2026-11-06). (source)

“It is very important that no work be done until the construction permit is actually issued.” (source) “The first site inspection, completed prior to issuance, often reveals special problems that may require changes to the proposed plans.” (source)

How long does it take to issue a construction permit?

Construction permit timing depends on complete submissions and responses to information requests. San Luis Obispo County says permits can usually issue “within two months of submittal” when those conditions hold in its unincorporated areas (read 2026-11-06). (source)

“Construction permits can usually be issued within two months of submittal if the application and plans are complete, and the applicant responds promptly to all requests for additional information.” (source)

How long are construction permit applications valid?

Construction permit applications have their own expiry period, separate from permission to start work. San Luis Obispo County gives an application “360 days from the date it was submitted” and may grant a written extension of 180 days (read 2026-11-06). (source)

“A construction permit application is valid for 360 days from the date it was submitted.” (source) “If a permit has not been issued within that time, the application will expire.” (source) “An extension of 180 days may be granted upon written request.” (source)

When do I need a building inspection?

Building inspection stages appear on the inspection card in San Luis Obispo County’s unincorporated areas. The county says the card lists “the required inspections and the work to be completed before each inspection”, including any specified tests (read 2026-11-06). (source)

“When your permit is issued, it will include an inspection card.” (source) “The card lists the required inspections and the work to be completed before each inspection.” (source) “It also describes specific tests, such as pressure tests on gas or water lines, that may be required before certain inspections.” (source)

What happens after each building inspection?

Building inspection results determine the next step in San Luis Obispo County’s unincorporated areas. The county describes a signed inspection card after a pass, or a “correction notice describing any changes” needed before another inspection can be scheduled (read 2026-11-06). (source)

“The building inspector will sign the appropriate space on your inspection card if your project passes the inspection.” (source) “If it doesn’t pass the inspection, the inspector will leave you a correction notice describing any changes that must be made before you can schedule a re-inspection.” (source)

Who is responsible for obtaining permits?

Permit responsibility should be explicit when arranging the work. For programs it administers, Oregon BCD says an owner doing the work is responsible for permits; an owner hiring a contractor “must confirm they are obtaining the appropriate permits” (read 2026-11-06). (source)

“If the property owner is doing the work, they are responsible for acquiring all the permits.” (source) “If you are hiring a contractor to complete the work, you must confirm they are obtaining the appropriate permits.” (source) “A contractor is allowed to obtain permits with the approval of the property owner.” (source)

Why doesn’t my permit list the required sequence of inspections?

Inspection order depends on the project for Oregon BCD-administered programs. The guide cites Oregon Residential Specialty Code section 109.4 and Oregon Structural Specialty Code section 110.6: work cannot pass an inspection stage “without first obtaining the approval of the building official” (read 2026-11-06). (source)

“The permit does not list all required inspections, as they will vary depending on the scope of work.” (source) “ORSC 109.4 and OSSC 110.6 state that work shall not be done beyond the point indicated in each successive inspection without first obtaining the approval of the building official.” (source) “Each permit has unique characteristics that can affect the order of inspection.” (source) “Generally, you will need to call for inspections prior to covering the work and moving to the next stage.” (source)

Sources

• Building permits — City of Minneapolis; published 2026-02-27; read 2026-11-06.
• Frequently asked questions for building (construction) permits — unincorporated county — San Luis Obispo County; read 2026-11-06.
• Plan review guide — BCD-administered programs only — Oregon Building Codes Division; published 2023-11; read 2026-11-06.