5. 6 Heyward Street, Brooklyn
This unique corner property building in South Williamsburg bounded by Wallabout Street and Franklin Avenue is a residential two-family home, that was constructed very recently in 2015, going to show that even today people are still using up every bit of land they can in New York City.
Based on filings with the NYC Department of Buildings, it appears that in 2011, this plot of land was subdivided from a larger zoning parcel and then a 3-story building was designed for it. Because if its unique location, this structure actually has multiple alternate addresses listed in the Department of Buildings in addition to 6 Heyward Street: 802 Wythe Avenue, 63-65 Wallabout Street.