About the biggest delay in Seattle permitting is the requirement to get a board of volunteer assholes to approve the visual appearance of the project, which is estimated to add an average of 8 months to the permitting process but is allowed to last for an
indefinite period. The average total permitting time for these projects (over 35,000sq ft) is about 18 months.
Hopefully they will be thrown out soon. The really fun note is that these boards are almost entirely made up of architects who are getting the chance to single-handedly destroy a competitor’s work.