Particularly with 12' wide or 30' deep rowhomes. Most lots in the city are 60-80' deep, but a lot of them are mostly grass behind a one and a half story 19th century townhouse. Those kinda houses only have like 600-800 sq ft, but the lot itself can fit ~2.2k sq ft with a 3 story build that is 50' deep and has a partially finished basement.