On average, listings lease in the $50's per square foot per year. The Solana Beach region is going through a a rise in rates. In the last 3 months, the median rate increased $59 per sqft per year.
Compared to the rest of the San Diego market, the Solana Beach region has higher rates, and you'll have to negotiate above asking rent to be in this hot region.
In the last 90 days, 6 listings have been posted online, which means new availabilities are probably leasing quickly. You'll want to be prepared to make an offer immediately. About 133% of the office spaces in the Solana Beach are subleases, so you might be able to snag a great spot on a short term. 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 2,000 sqft. Most buildings in this area are approximately 2 stories. Most buildings in this market were built in 1988 and are Class A.