In the last 90 days, 0 listings have come on the market, which means leases most likley are leasing quickly. You'll want to be prepared to make an offer immediately. About NaN% of the listings in the Sheffield are subleases, so you will probably have to consider a longer term 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 sqft. Most properties in this market are around 2 floors. Most buildings in this region were built in 2002 and are Class B.