Transit-oriented development – meaning the creation of more housing near MBTA stops – has been one of the city of Boston’s goals recently. But sometimes, living in a convenient location close to the T can come at a cost.

To show this, apartment search site RentHop mapped the median rent for one-bedroom apartments across the city based on listings within 500 meters of each T stop.

The map has two major takeaways: First, you can often save a lot of money by moving just one T stop. Second, some stops have seen drastic price changes in the past year.

RentHop noted:

“We found that an extra stop on the Orange line past Tufts Medical can save you $150 a month. Moving to Copley instead of Arlington on the Green can save $100 a month. Trekking to Andrew instead of Broadway on the Red is worth over $400 a month, and another $300+ if you choose to live near JFK/UMass. Moving across the river on the Blue line can save you about $300 a month.”

As for increasing prices, if you live near the Riverside T stop on the Green Line, prices have increased 22.1 percent in the last year, making it the highest jump anywhere in the area. Big increases were also seen near Savin Hill, Aquarium, and Boston University.

Central Square is at the center of both trends. RentHop found that last year, living there would have been significantly cheaper than living just one stop away in either direction. But since rents near Central have increased 9 percent since then, bringing the median rent to $2,050, it’s now more expensive than Harvard Square and not much cheaper than MIT/Kendall Square.

Though it seems like prices have increased everywhere, there were some stops that saw a decrease in monthly rents from last year, according to RentHop, including Mattapan, Butler, Community College, Lechmere, and Logan Airport.

Last month, real estate site Estately made a similar MBTA map, looking at the price per square foot for purchasing a home. Expensive rents tend to match up pretty well with expensive price-per-square-foot calculations.

But the most expensive price per square foot for buyers was living near the Arlington T stop on the Green Line, while the most expensive spot for renters was living near the Broadway T stop on the Red Line.