Editing 770 Eastern Parkway (section)

== The Main Synagogue ==
In around 5714 (1954), due to the increasing number of participants in the Rebbe's tefillos and farbrengens, the "Small Zal" on the first floor could no longer contain all the people. They began using the "Shalash," which was larger than the "Small Zal," for farbrengens and Yomim Noraim tefillos. The major farbrengens of Yud Tes Kislev, Yud Shevat, and Purim were held in other larger halls in the Crown Heights area.

Over the years, as the number of participants grew, there was an increasing need to expand the space. The shul was expanded toward the adjacent building at 784-788 Eastern Parkway, as well as toward Union Street.