Most listings are in the $10's per square foot per year. The Waipahu submarket is going through a an increase in rates. In the last 3 months, the median rate rose $16 per sqft per year.
In the last 90 days, 13 listings have been posted online, which means spaces might be leasing quickly. You'll want to be prepared to make an offer immediately. About 23% of the available leases in the Waipahu 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 available, so finding a space for a small business might be tough.
Even though the median size is 20,280 sqft, there are still 0 spaces below 2,000 sqft. Most properties in this region are approximately 2 floors. Most buildings in this region were built in 1980 and are Class B.