You may hear the Swiftlet chirping sound but it takes a while for you to find out where it came from. When you look at the building window you could see thru the glasses and all you could see is an empty building with good ceiling of no nesting planks.
( on the middle of the building on the roof top, a DK)
There are no brick walls or board sealing up windows in the front and back of the building.
So where is the farm? Well , it was built on the roof , the middle of the building in the center. So it is solely no man building.
(it was an area for water tanks but was converted to farm)
Great idea! Having a farm in no one building ! You don't have to own a shop or a piece of land to have farm.
The beauty of Swiftlet farming is that most farmers are creative . Bravo to the owner. I guess whether it will be successful or otherwise it is secondary but I respect this type of creativity.
Cheer Mr. Owner!