You might like to know that another townhouse in this same area also just came on the market. It's the same price: 4131 11th St N.
4131 11th St is in the Ballston Area Townhouse subdivision, has two bedrooms and two bathrooms (plus an upper level den), is an HOA, not condo, so the homeowners monthly dues are $57.50. It's listed at $599,900.
4116 11th St is in Randolph Square, and as you know has 3 bedrooms, 2.5 bathrooms. It's condo ownership, and the monthly fee is $310. Listed at $599,000.
They are both open on Sunday -- and visiting both would provide a useful comparison.
Hope that's helpful,
Long and Foster North Arlington