No building permit required if the structure is non-habitable one-story detached, does not exceed 200 square feet or a height of 15 feet measured from the finished floor level, to the average height of the highest roof surface. On less than 2.5 acres, accessory structures may not exceed 528 square feet or a height of 15 feet measured from the finished floor level to the average height of the roof surface. Accessory structures cannot be located in the front yard setbacks. If located in a side or rear yard, they must maintain 5 foot setbacks from the side and rear lot lines.

Accessory Structures Guide 

No building permit required if 7 feet in height or less and NOT used as a barrier around a swimming pool. An encroachment permit is required if fence is to be placed in the right-of-way or an easement. Contact the Right-of-Way Administrator at 503-718-2611.

Fences may not exceed 8 feet in a rear or side yard and may not exceed 3 feet in a front yard. Fences up to 6 feet in height are permitted in front yards adjacent to arterial, major and minor collector streets with approval from the Planning Division. Fences greater than 7 feet must have building permit approval. All fences or walls shall meet vision clearance area requirements. Contact the Planning Division at 503-718-2421.

No building permit required for patios covers, as defined in Section AH102, and porch covers not over 200 square feet and supported by an exterior building wall. Eaves, canopies or similar architectural features may extend into a required yard not more than 36 inches provided the width of such yard is not reduced to less than three feet.

Permit(s) are required: plumbing permit for the pool or tub is standard. May also require electrical permit for wiring the pump and a mechanical permit may be required if a gas heater is used.

NOTE: All swimming pools and hot tubs shall be enclosed, and meet pool barrier requirements as required by City of Tigard Building Code and 2021 International Swimming Pool and Spa Code (ISPSC).

Contact the Building Division at 503-718-2439.

No building permit required where the floor or deck is not more than 30 inches above adjacent grade measured at any point within 3 feet horizontally of the floor or deck, and where in the case of a covered porch, deck or floor does not come closer than 3 feet from the property line(s).

(Unroofed porches, decks, or balconies 3 feet or less in height may project into a required rear or side setback provided the projection does not reduce the width of any setback to less than 3 feet. Unroofed porches may project a maximum of 3 feet into a required front setback.)

An encroachment permit is required if structure is to be placed in the right-of-way or an easement. Contact the Right-of-Way Administrator at 503-718-2611.

No building permit is required for re-roofing, where replacement or repair of re-roofing and sheathing does not exceed 30% of the require live load design capacity. 

Permits required for the following:

1. Structures in wildfire zones
2. Townhouses
3. Installation of building-integrated photovoltaic roof panel and other photovoltaic roof coverings 

No building permit required if 4 feet or less in height from the bottom of the footing to the top of the wall and not supporting an extra load such as a fence or soil sloping down to the top of the wall.  A permit is required when a retaining wall is supporting a load that if not retained could impact a regulated structure.

An encroachment permit is required if wall is to be placed in the right-of-way or an easement.  Contact the Right-of-Way Administrator at 503-718-2611.

Depending on the use and scope of work, a permit may not be required for a children’s play structure or play house supported entirely by a tree and less than 200 sf.  Please check with the both the planning and building departments before starting your project.