It’s an interesting question, and one that the team at real estate website Estately decided to tackle. In a recently released diagram, Estately analyzed the last six months of home sales for houses, townhouses, and condos within a half-mile radius of each T stop, much to the pleasure of the real estate geek in all of us.

It wasn’t much of a surprise that the Arlington stop on the Green Line rang in as the most expensive in terms of price per square foot, at $1,076, followed closely by the Copley stop at $1,070 per square foot. But, things took an interesting turn when they calculated the train line with the highest average price across all stops. That title goes to the Silver Line, with an average of $754 per square foot.

When you call one of the country’s most expensive cities home, public transportation plays an important role in justifying the cost of living in Boston, especially for young professionals who may not have a car. While it’s only one piece of the puzzle, the map is a useful tool for spotting value. One stop that caught our eye, for instance, is St. Mary’s Street on the Green Line “C” Branch. At $643 per square foot, there’s a steep increase at the next inbound stop (Kenmore, $885 a square foot). Plus, it’s right across the street from Whole Foods, and what’s not to love about that.

Which stop stands out to you as the best value?