The Temple Institute: In-Depth Temple Study: The Chulda Gates
 
The Chulda Gates: Sanctity

Through these gates one entered the area of the Temple Mount, whose sanctity paralleled that of the "Levites Camp." However, since the gates themselves were beneath the level of the Temple Mount, and there is a principle that the underground tunnels were not sanctified, those who were forbidden to enter the Temple Mount plaza were permitted to enter the gate compound. 
Contents:   Part I,    Part II,    Part III,    Part IV,    Part V,    Part VI,    Part VII