In search of an answer, I wind up at the Streets Department's Survey Unit, where I am educated on the difference between the property line, the building line, the street line and the building-setback line. You will be happy to know I will not explain all that here, I will just report that Streets says Pattison is 120 feet wide - 80 feet for the street flanked by two 20-foot-wide sidewalks. Public property extends 20 feet in from the curb.