In the last 90 days, 1 listings have been posted online, which means leases most likley are going fast. You'll want to be prepared to make an offer immediately. About 200% of the office spaces in the Ionia County 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 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 buildings in this area are close to 1 stories. Most buildings in this area were built in 1910 and are Class Class B.