We are in the early stages of planning a duplex build in Melbourne. Narrow block. Currently thinking that basement parking for both would allow the best use of space and light. Have been advised that we are looking at about $2000 per sq.m,, so ball-park somewhere between $150-200,000 for 2 double basement garages. Would you do it? Do you think the cost of the underground parking may be fractionally negated by a reduction in build cost by having less floorspace on the upstairs level ? (spend a big bit and save a tiny bit) Any thoughts on impact on end value? Land values in this area are on the higher end ($2500 sq.m) so I don't think we would be over-capitalising but happy to get feedback. Has anyone built a basement garage and can throw some advice our way?