Compared to the rest of the Washington D.C. market, the Wheaton region has lower rates, so you should have no trouble finding a great deal in this discounted submarket.
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 tour spaces as quick as possible. About NaN% of the available leases in the Wheaton are subleases, so you will probably have to consider a longer term lease. There aren't many listings below 2,000 square feet available, so finding a space for a small business might be tough.
The standard measurement for office space in this area is around 2,500 sqft. Most buildings in this area are approximately 1 floors. Most buildings in this market were built in 1986 and are Class B.