Most listings are in the $50's per square foot per year. The Newport Beach submarket is going through a decline in rates. In the last 3 months, the median rate fell $1 per sqft per year. That's a 1% decline in rent.
Compared to the rest of the Metropolitan Los Angeles market, the Newport Beach submarket has more expensive rates, and you'll need to pay a premium to be in this hot submarket.
In the last 90 days, 96 listings have been listed, so you'll want to check back regularly for new listings. About 3% of the listings in the Newport Beach are subleases, so you will probably have to consider a longer term lease. 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 2,090 sqft. Most properties in this market are approximately 2 stories. Most buildings in this region were built in 1980 and are Class B.