That's the colloquial name for this chunk of central Brooklyn, which was "in many respects . . . the first suburbs." This particular house is located in the neighborhood of Beverley Square East.
Funny note about the linked NY Times article: it mentions the hideous abbreviation "NoProPaSo" (North of Prospect Park South), which for years I had cited as the most heinous of the recent rash of shortened neighborhood nicknames. Turns out it was created as a joke, but the Times reporter failed to record that detail!