On average, listings lease in the $20's per square foot per year. The King City submarket is experiencing a a boost in rates. In the last 3 months, the median rate increased $24 per sqft per year.
Compared to the rest of the Greater Portland market, the King City submarket has smaller rates, so you should have no trouble finding a great deal in this discounted submarket.
In the last 90 days, 0 listings have been made available, which means leases might be going fast. You'll want to be prepared to make an offer immediately. About NaN% of the office spaces in the King City are subleases, so you will probably need to consider the implications of signing a direct lease with the building. There aren't many listings below 2,000 square feet posted, so finding a space for a small business might be tough.
The standard measurement for office space in this area is around 1,360 sqft. Most buildings in this market were built in 1978 and are Class B.