According to The Puget Sound Business Journal, with all of the new development in downtown Seattle, developers are now trying to race one another to complete skyscrapers, to avoid the spacing rule. That's because, as Brad Broberg writes, "landing the master use permit first gives precedence to go 400 feet. Those who follow can’t build above 160 feet on the same block without maintaining a 60- to 200-foot buffer, depending on the block’s location – a distance that can leave too little room to construct other towers."

As the article highlights, despite the spacing requirements having been in place for nearly 10 years, we are just now finding situations where they factor into permit requests, because of the speed with which new development is occurring in the downtown Seattle area.