We intend to subdivide our block and build a unit at the back. Mortgage on the current house is on both spouses but only one person is on the property title. Q1. Are there any tax benefits or other concessions for having both of us on the title? Ideally, we would like to sell the old house and rent out the new unit...we then buy another unit in an area where we want to live (presuming we can service both loans, for our new Principal Place of Residence - PPR and the newly built investment unit we are renting out). Q2. Are there any tax concessions when you build a new unit to rent out? If we won’t be able to service both loans we would sell the old house and move into the new unit at the back. Live there for 12 months to be entitled for a 50% tax discount on any capital gain we make when selling the new unit...then use the proceeds of both sales to buy a unit in our desired area. Q3. Are we entitled for the capital gain discount in both cases...when we initially sell our old house and another PPR, the new unit, 12 months later? I thank you in advance for any assistance with this!