siuyudim

@baubau: I am thinking of 2 suites in the basement alone with 2 separate entrances. 7-8 months is okay, the hardest part for us will be all the packing and moving. Does the city decide how many floors we're allowed to have? I'm hoping for 3 floors as there are 5 of us.

@rockypath: thanks for the tip, if all goes as planned..we will have a lawyer to deal with the contractor, payments and whatever else.

@Yui and Sike: thanks for the PM, i have replied.

@tsumorichisato: since we are not building the house for the purpose of selling, we don't mind spending more for nicer material.

@fibbi: i never thought of this project being fun, it is more of a necessity. the necessity of improving the living condition for my family.  i can foresee all the headaches and arguments now.

baubau

I don't think the City allows for more than 2 suites at a single family dwelling.  In terms of level - depending on the type of zoning you are in (typically RS-1), you are allowed to construct 2 1/2 storey - the first storey being the main level, not more than 2m above grade.  There is a height restriction at each zoning as well, so it depends on a lot of parameters:  site grading, site zoning, etc. in order to determine what suits best for you and your family.

PM me if you are interested to find out more details~