Most listings are in the $30's per square foot per year. The Woodinville region is going through a a rise in rates. In the last 3 months, the median rate increased $14 per sqft per year. That's a 74% rise in rent.
Compared to the rest of the Seattle Metropolitan Area market, the Woodinville region has higher rates, and you'll have to negotiate above asking rent to be in this hot region.
In the last 90 days, 3 listings have come on the market, which means new listings most likley are leasing quickly. You'll want to be prepared to make an offer immediately. There aren't many listings below 2,000 square feet on the market, so finding a space for a small business might be tough.
The standard measurement for office space in this area is around 310 sqft. Most properties in this region are approximately 1 floors. Most buildings in this area were built in 1982 and are Class B.