Streetdirectory.com Diethelm Keller Aviation is located in Tanah Merah, a district in Singapore that is bursting with businesses dealing with technology, aerospace and logistics. The industrial nature of the area is mollified by the scenery of the nearby recreational and country clubs, which regularly see expatriates, golf lovers and avid anglers visiting the location. Tanah Merah is in close proximity to the Ferry Terminal, which schedules out one-hour trips to Bintan. In several years, this area will see several new hotels being built. There are also many residential properties i.e Condominiums and landed property available in Tanah Merah district.