On average, listings lease in the $20's per square foot per year. The Honolulu County region is going through a decrease in rates. In the last 3 months, the median rate fell $1 per sqft per year. That's a 3% decrease in rent.
In the last 90 days, 175 listings have come on the market, so you'll want to check back regularly for new listings. About 4% of the listings in the Honolulu County are subleases, so you will probably need to sign a longer term lease with the landlord directly. 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 850 sqft. Most properties in this market are approximately 2 floors. Most buildings in this area were built in 1970 and are Class A.