http://www.realestate.com.au/property-house-sa-queenstown-113541755 This place is up for auction shortly, there's a tenant already in the existing house and the block zoning is good enough for 2 houses. In the photos, the back yard looks pretty good size to build another behind the existing. Or option 2, perhaps demo the house and build 2 side by side? The house looks in decent nick. If any of you guys are local or familiar with the area what do you think it'll go for? Looks like its on a pretty short/direct route to the CBD too.