On average, listings lease in the $10's per square foot per year. The La Plata submarket is going through a an increase in rates. In the last 3 months, the median rate rose $3 per sqft per year. That's a 17% rise in rent.
Compared to the rest of the Washington D.C. market, the La Plata region has less expensive rates, so you should have no trouble finding a great deal in this undervalued region.
In the last 90 days, 8 listings have come on the market, which means spaces might be leasing quickly. You'll want to be prepared to make an offer immediately. 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 1,200 sqft. Most buildings in this market are around 4 floors. Most buildings in this market were built in 2006 and are Class A.