The next closest was 335 around Newcastle south of Bellevue in King County and 223 around Mukilteo, said Todd Britsch, MetroStudy's regional director for Seattle and Oregon.
Most of the new homes are being built in the unincorporated county, in areas that will eventually be incorporated by either Mill Creek or Bothell.
The numbers don't surprise Britsch
"When you look at where the jobs are being created and the buildable land, it's kind of a no-brainer," Britsch
More tech jobs are coming online in Redmond and Bellevue, but the existing homes on the East Side are too expensive for many workers.
"Even though they're coming in with great jobs, they can't afford a home in Redmond or Bellevue for the most part," Britsch
The area between Mill Creek and Bothell is called the North Creek Submarket Area, said Britsch
, who has worked for the firm for 14 years.
said that he
expects more people will be coming soon.
said the Millennial generation is getting ready to have kids of their own.
"Contrary to popular belief you cannot allow you allow your 5-year-old to play at the corner of Fifth and Pike (in downtown Seattle)" Britsch
"These Millennials who love living in Belltown close to the bars and close to their jobs - when they have children they'll begin to migrate to the suburbs."
And that means even more people moving to the area.
Barring a recession or an unforeseen economic setback, it should continue for another three to five years.
"At that point the North Creek Submarket Area will run out of buildable land," Britsch