On average, listings lease in the $20's per square foot per year. The Belmont submarket is going through a a boost in rates. In the last 3 months, the median rate rose $1 per sqft per year. That's a 6% rise in rent.
Compared to the rest of the Metrolina market, the Belmont region has less expensive rates, so you should have no trouble finding a great deal in this discounted region.
In the last 90 days, 3 listings have been listed, which means spaces might be going fast. You'll want to be prepared to tour spaces as quick as possible. About 133% of the listings in the Belmont are subleases, so you might be able to sign a shorter term by taking over a previous lease. 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 250 sqft. Most properties in this area are approximately 1 stories. Most buildings in this region were built in 1990 and are Class A.