It depends if somebody else previously had selected the unit, opted for OCS and later give up then that unit will have OCS. Otherwise, by default, if the unit was never chosen before, it will not come with OCS. One way to guess is by comparing the price with other units of same BTO projects. You may notice some units at lower level costs more than the same unit at higher level. High chance the lower unit one have flooring hence higher price.
For confirmation, you will need to wait until you get appt date/time then you will get to view the flat listing. There will be indication beside the unit no. OF, OK, FF, RP etc. My understanding of these indications is as such:
FF: unit comes with floor finishes
OK: Open kitchen without floor finishes
OF: Open kitchen with floor finishes
RP: Repossessed flat, HDB would have already uploaded photographs of the unit before your appt date. That is where you can ascertain if they retain the flooring or had removed the flooring.
If no indication beside the unit no. it means there is no flooring done. I think I read somewhere that all BTO units from SBF exercise will include internal doors and toilet sanitaries. The difference is only if there is flooring done and whether is it open kitchen or not. Someone else can confirm?
