Most listings are in the $20's per square foot per year. The Oceanside submarket is experiencing a decrease in rates. In the last 3 months, the median rate decreased $2 per sqft per year. That's a 7% decrease in rent.
Compared to the rest of the San Diego market, the Oceanside submarket has smaller rates, so you should have no trouble finding a great deal in this undervalued region.
In the last 90 days, 16 listings have come on the market, which means office spaces might be going fast. You'll want to be prepared to tour spaces as quick as possible. About 6% of the listings in the Oceanside are subleases, so you will probably have to focus your search on direct office leases. 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 1,790 sqft. Most buildings in this area are around 2 stories. Most buildings in this region were built in 1984 and are Class B.