Confusion is to be expected given A and B.
Part of your confusion may stem from the building/complex being so large that it has addresses on Dean as well as Bergen.
That said, Big building on corner of Franklin and Dean = 1042 Dean St = former location of Nassau Brewery.
[quote]Nassau Brewing Company [1042 Dean Street, Brooklyn]
Nassau was the final name of a fairly successful brewing company in Brooklyn. Founded originally in 1849 as Liberger and Walter, it changed hands in 1866 as Christian Goetz bought the brewery, calling it the Bedford Brewery. He operated it successfully until 1884 when William Brown and a group of businessmen bought the plant. Brown renamed the brewery Budweiser Brewing Company in reference to the quality of beer of Budweis, Bohemia. Inevitably, Anheuser-Busch brought suit against Brown for copying their name, which had been trademarked in 1878. Brown gave in, changed the name to Nassau Brewing Company, and directed the company from 1898 to 1914 when it closed. http://www.nyfoodmuseum.org/bkbeer.htm
Adamaronson called it the Ice House for unknown reasons.
Regardless of A and B, the fact remains: The present owner of the complex pictured above will reportedly develop it into market rate apartments or condos. If he gets his financing and permits in order, the 'hood will change even more.
For better or worse, the change on Nostrand is going to make the change on Franklin look minor.