L. RON HUBBARD LANDMARK SITE

Osborn Road, Phoenix, Arizona

“This Congress has as its principal business the delineation of the materials in the book Dianetics 1955!

“This Congress also has as its business the signalizing of the reunification of Dianetics and Scientology in view of the fact that the Hubbard Dianetic Research Foundation, the first Foundation, has again come home to Phoenix.”  —L. Ron Hubbard

These pivotal events marked a transformative period in the history of Scientology, emanating from the Landmark Site where L. Ron Hubbard continued his trail of research and discovery on East Osborn Road in Phoenix, Arizona.

It was the autumn of 1954. L. Ron Hubbard had made Phoenix the epicenter of the Scientology world, guided by the Hubbard Association of Scientologists International (HASI). The HASI ultimately occupied seven facilities throughout downtown Phoenix—housing the Hubbard Professional College, Advanced Clinical Course (ACC) lecture halls, auditing rooms, administrative offices, even shipping and printing centers—all of which Mr. Hubbard coordinated from his office at 806 North Third Street.

No sooner had Mr. Hubbard completed the 8th ACC than the 9th ACC was underway. He also began a series of weekly public lectures and Group Processing sessions—The Golden Dawn: Phoenix Evening Lectures.

Until this time Dianetics and Scientology had existed as separate entities—distinct subjects and organizations in separate cities. But in a historic shift, Mr. Hubbard moved the Hubbard Dianetic Research Foundation (HDRF) from Wichita, Kansas, to Phoenix. The event was marked by the arrival of nearly nine tons of Dianetics materials via semi‑truck to the newly established HDRF headquarters at 507 North Third Street.

So it was that in October, to meet the ever-growing demands of his writing and research, L. Ron Hubbard left Camelback Mountain for the more expansive location at 4451 East Osborn Road.

His Osborn Road property, a striking example of Prairie-style architecture, had been built in 1948, set amidst what was then a vast citrus orchard, covering an area that has since developed into suburban Phoenix. In fact, when Mr. Hubbard first arrived in 1954, the site still featured neat rows of some forty navel orange trees from that original orchard.