Compared to the rest of the San Diego market, the Lemon Grove region has less expensive rates, so you should have no trouble finding a great deal in this undervalued region.
In the last 90 days, 2 listings have been made available, which means leases are probably leasing quickly. You'll want to be prepared to tour spaces as quick as possible. About 50% of the listings in the Lemon Grove 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 on the market, so finding a space for a small business might be tough.
The standard measurement for office space in this area is around 410 sqft. Most buildings in this region are approximately 2 stories. Most buildings in this area were built in 1985 and are Class Class C.