hdb teoalida 4s corridor 5i bto vidalondon sqm yishun
hdb floor room plan sqm singapore plans teoalida 4a 90sqm model house 1999 2003 saved
floor hdb condo flats floorplan drafting teoalida symbol
hdb sqm 90s corridor vidalondon teoalida 4s 5i utility 1930s corners