Decks, Fences and for Single Family Homes in Seattle

This Tip addresses the questions most commonly asked by homeowners wishing to construct decks,fences and arbors. This information applies to singlefamily homes on single-family and lowrise multifamily zoned properties.Decks vary widely in the scope of their construction;you will need to get a permit for some. You generally do not need a permit to build a fence, but you need to follow our regulations. You generally need a permit to build arbors.Most decks on single-family zoned properties only require a subject-to-field-inspection (STFI) permit. We issue STFI permits over the counter, usually on the day you apply. You need a construction permit to build a deck that is more than 18 inches above the ground or that is a roof deck (built on top of part of the building).A scaled site plan that shows all structures on your site, including the proposed deck. Your site plan dimensions must show that your deck meets our land use requirements for location and lot area coverage.A scaled elevation drawing that shows the height of the proposed deck (height above existing or final grade, whichever is lower), including any guardrails and stairs. Your elevation drawings must offer side views of structures, from the ground to the top of the structure.