Compared to the rest of the Washington D.C. market, the Wheaton region has less expensive rates, so you should have no trouble finding a great deal in this discounted region.
In the last 90 days, 0 listings have been posted online, which means spaces are probably going fast. You'll want to be prepared to tour spaces as quick as possible. About NaN% of the office spaces in the Wheaton are subleases, so you will probably need to consider the implications of signing a direct lease with the building. 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 properties in this market are approximately 1 stories. Most buildings in this market were built in 1986 and are Class B.