Most listings are in the $40's per square foot per year. The Alexandria region is going through a an increase in rates. In the last 3 months, the median rate went up $6 per sqft per year. That's a 16% increase in rent.
Compared to the rest of the Washington D.C. market, the Alexandria region has greater rates, and you'll have to negotiate above asking rent to be in this hot submarket.
In the last 90 days, 64 listings have come on the market, so you'll want to check back regularly for new listings. About 111% of the listings in the Alexandria are subleases, so you might be able to snag a great spot on a short term. There aren't many listings below 2,000 square feet on the market, so finding a space for a small business might be tough.
Even though the median size is 2,620 sqft, there are still 0 listings below 2,000 sqft. Most properties in this market are around 4 floors. Most buildings in this region were built in 1980 and are Class B.