This large building was located at 3240 NW 27th Avenue due east of runway 9/27 at Miami International Airport which is seen in the middle of the top of the photo. Construction of the Fritz Hotel began by the M. R. Harrison Construction Company in 1925 but the hotel was only three-fourths completed in 1927. Construction stopped due to the Great Depression.
Fritz Hotel and Hen House days: in 1933 Ripley's Believe It or Not had a cartoon of the building titled "A Million Dollar Hen House" published, stating that the Fritz Hotel - a huge unfinished hostelry in Miami - was used solely for raising chickens and eggs, and it holds about 60,000 laying guests. The company found use for the building as a hen house temporarily.
Embry-Riddle School of Aviation, owned by John Paul Riddle and local Miami attorney John G. McKay, was busy training pilots at several locations including Miami Municipal Airport (LeJeune Road and NW 108th Street) and started a Technical Division to train mechanics. They moved that division in November 1940 into the south wing of the Fritz Hotel. By 1941 Embry-Riddle used all the available space in the structure and renamed it to the "Aviation Building." The Embry-Riddle spaces included executive offices, classrooms, military barracks, workshops, a cafeteria, library and clinic. Courses were held seven days and five evenings a week on aeronautical engineering and aircraft maintenance, and 15-week specialized courses on welding, radio, electricity, and sheet metal were offered. A very interesting article about the early days of Embry-Riddle School of Aviation, with comments about their seaplane base in Miami, is located at: http://www.eraualumni.org/s/867/index.aspx?sid=867&gid=1&pgid=915
And according to Captain Dave Amos, USCG Retired, in his comments below, National Airlines had their corporate offices in the building until they moved to Miami International Airport offices in the 1960's. Dave also describes other businesses that were in the building and I thank him for enlightening us with the additional information.