The number 1 building at Aljuined MRT

Every time when I pass by Aljuined MRT, I saw this lower raised building which sharped exactly as a letter "1". So that spur me to search on Google Earth and see if I manage to find 1, 2, 3 and so on.. but unfortunately, there isn't!

You can view it in google map at:
http://maps.google.com/maps?ll=1.3166354,103.8841&z=17&t=h&hl=en