Most listings are in the $40's per square foot per year. The Alexandria submarket is going through a a rise in rates. In the last 3 months, the median rate rose $42 per sqft per year.
Compared to the rest of the Washington D.C. market, the Alexandria submarket 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 been listed, so you'll want to check back regularly for new listings. About 147% of the listings in the Alexandria are subleases, so you might be able to sign a shorter term by taking over a previous lease. There aren't many listings below 2,000 square feet available, so finding a space for a small business might be tough.
Even though the median size is 2,600 sqft, there are still 0 listings below 2,000 sqft. Most buildings in this region are close to 4 floors. Most buildings in this market were built in 1981 and are Class B.