Why do I need a building permit?
Typically a permit is required to construct, enlarge, alter, repair, move or change the occupancy of a building or structure, or to erect, install, enlarge, alter, repair, convert, or replace any electrical, gas, mechanical or plumbing system. However, there are some exceptions to the permit requirements. To download a permit application, click on a link on the right. If you are not sure whether you need a permit, call the City of Sherwood Building Department at (503)625-4226.
There are different kinds of permits needed depending on the work to be performed:
Building Permits are for structural alterations. They are required to add a room or create additional living space, add a window or door, add or remove walls, and build a stairway or carport. Depending on the extent of the work, a permit may be required to build a deck, porch cover, shed, retaining wall, or when re-roofing. Some of these permits may also require a review from the Planning Department.
Mechanical Permits may be required for work on heating, cooling, or ventilation systems, including bath vents and wood stoves. The installation, alteration, or repair of gas piping between the meter and an appliance or other equipment, including all liquefied petroleum gas piping, is also considered mechanical work.
Plumbing Permits are required to replace water heaters and underground piping, add alter or relocate piping inside a wall or ceiling, or beneath a floor, and for plumbing in all new installations. This includes installation of sewers, water service, and exterior rain drains and the emergency repair, alteration or replacement of freeze-damaged or leaking concealed piping, if new piping exceeds three feet. A plumbing permit is required to install a backflow preventer for a lawn irrigation system. (See link on the right, “Backflow Device Permits”.) A plumbing permit is not required for "ordinary minor repairs" to plumbing systems on one’s own property, which means repair, replacement, or maintenance of existing accessible fixtures, parts, and appliances. When working with water and drain attachments do not alter an existing plumbing system without a permit.
Electrical Permits are required to install or alter any permanent wiring or electrical device, run additional wiring, put in an electrical outlet or light fixture, install a receptacle for a garage door opener, convert from fuse box to circuit breakers, or install or alter low-voltage systems such as security alarms, stereo or computer systems. *Electrical or low voltage permits need to be obtained from Washington County. For more information call (503) 846-3470*
Grading Permits need to be obtained for any site work that disturbs over 500 square feet of area or 50+ cubic yards of cut or fill.
Manufactured Home Permit is needed to place a manufactured home on a lot or in a manufactured home park.
Fire Sprinkler, Fire Alarm, and Permanent Sign Permits use the Building Permit Application form.