what is the minimum storeys on 325 5th ave n
CREATE TABLE "buildings_completed_as_of_february_2011" (
  "rank" real,
  "building" text,
  "address" text,
  "height" text,
  "storeys" real,
  "completed" real
);
SELECT MIN("storeys") FROM "buildings_completed_as_of_february_2011" WHERE "address"='325 5th Ave N';