Permits ensure that a certified inspector inspects the construction project or installation. Inspections help make sure work is done safely and to code. When a county inspector approves work, you can ask questions from an expert and know that the work has been checked for safety violations. This is of particular value to the do-it-yourselfer who doesn't make installations every day. Incorrect installations can result in house fires, flood damage, and/or structural problems.
Permits are designed to help ensure that licensed contractors do the work if the homeowner doesn't handle the job. Only Construction Contractors Board (CCB) licensed contractors, and those who carry a trade license, such as plumbers and electricians, are allowed to legally work in Oregon. The City of Keizer and Marion County Building Inspection issue permits only to contractors who are properly licensed and bonded.
Inspections help ensure that work meets the building code. Inspections not only reveal minor problems that could lead to costly repairs, but also liability and life-safety concerns like structural weaknesses, dangerous wiring, or defective plumbing.
When it comes to selling a house, realtors and lenders may require that any construction work be done with permits to ensure that the house is safe for future occupants. If work is not permitted, instead of closing on your home, you'll have to scramble to catch up with permits and inspections and additional repair work if the installations weren't made to code.