118 Saint Marks Place

Here's a Park Slope rental that comes from a three-story brownstone that's been converted into three condo apartments. This unit pretty much fits your idea of what a Park Slope apartment should be: it's located on a charming block with other brownstones, there are lovely interior details, and it's large enough to fit a family. (This is a neighborhood with a lot of babies.) It's a duplex with 1,400 square feet, three bedrooms and two bathrooms total. The condo is now on the rental market for $6,500 a month. It looks like condos in this building have been selling for over $1 million for the past few years -- this apartment actually closed in 2012 for $1.150 million.
See the interior