On average, listings lease in the $20's per square foot per year. The Martinez submarket is experiencing a an increase in rates. In the last 3 months, the median rate rose $1 per sqft per year. That's a 3% rise in rent.
Compared to the rest of the East Bay market, the Martinez region has less expensive rates, so you should have no trouble finding a great deal in this discounted region.
In the last 90 days, 10 listings have been listed, which means listings most likley are leasing quickly. You'll want to be prepared to make an offer immediately. There aren't many listings below 2,000 square feet on the market, so finding a space for a small business might be tough.
Even though the median size is 20,410 sqft, there are still 0 listings below 2,000 sqft. Most buildings in this area are approximately 1 stories. Most buildings in this region were built in 1985 and are Class A.