Chung Hom Kok building

Greetings!   I must first declare I am no military expert, so here is my guess about these buildings.

In its natural state, this area was covered by low vegetations facing west and open water.  This was long before the present road and hospital were built.  In order to hide their presence, they built them by cutting into the hillside and restored vegetations for the front.  The two large concrete protusions at the front of one building would be some defensive armour given the thickness of the concrete reenforced with steel bars too I think.  The two square openings would be where I stick my machine-gun out to rest on the flat surface outside.  The ventilation slips near the roof give officers some relief from the hot sun, and stored ammunitions don't like heat either.   Corrections welcome.  Regards,  Peter

The building was originally the Engine Room for the power supply to the two DEL's of the Battery. The bulges contained intake ducting to the engines mounted inside, which drove the generators to produce the electricity for the lights. The exhaust was ducted through holes in the wall immediately above the intake bulges. These Engine Rooms were a standard part of Coastal Defence sites, and remaining ones can still be found, in varying states and uses at the old sites of Collinson Battery, Bokhara Battery and Stanley Battery on HK Island, and Pottinger Battery on Devils Peak, . 

Many thanks Rob, a history and technical lesson for me.  Regards, Peter