Most listings are in the $20's per square foot per year. The Norristown region is seeing a a boost in rates. In the last 3 months, the median rate rose $2 per sqft per year. That's a 13% increase in rent.
In the last 90 days, 5 listings have come on the market, which means listings most likley are leasing quickly. You'll want to be prepared to tour spaces as quick as possible. There aren't many listings below 2,000 square feet available, so finding a space for a small business might be tough.
Even though the median size is 3,200 sqft, there are still 0 new listings below 2,000 sqft. Most buildings in this area are close to 4 floors. Most buildings in this area were built in 1955 and are Class C.