In the last 90 days, 4 listings have been made available, which means spaces might be leasing quickly. You'll want to be prepared to make an offer immediately. About 25% of the available leases in the Union City 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 sqft. Most properties in this market are around 1 stories. Most buildings in this region were built in 1987 and are Class A.