Most listings are in the $10's per square foot per year. The Kailua submarket is seeing a a boost in rates. In the last 3 months, the median rate went up $20 per sqft per year.
In the last 90 days, 7 listings have come on the market, which means leases are probably going fast. You'll want to be prepared to tour spaces as quick as possible. About 186% of the available leases in the Kailua are subleases, so you might be able to find a shorter term or below market rent. 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 940 sqft. Most buildings in this market are around 2 floors. Most buildings in this region were built in 1985 and are Class A.