The typical asking rate per listing is in the $10's per square foot per year. The Kailua region is seeing a a boost in rates. In the last 3 months, the median rate went up $4 per sqft per year. That's a 25% rise in rent.
In the last 90 days, 7 listings have been made available, which means office spaces are probably leasing quickly. You'll want to be prepared to make an offer immediately. There aren't many listings below 2,000 square feet available, so finding a space for a small business might be tough.
The standard measurement for office space in this area is around 710 sqft. Most buildings in this market are approximately 2 floors. Most buildings in this area were built in 1985 and are Class A.