I'm not an expert but is it really more expensive to build up rather than out given the state of technology today? Surely the cost of land alone is enough of an

I'm not an expert but is it really more expensive to build up rather than out given the state of technology today? Surely the cost of land alone is enough of an incentive to build up? Also Berlin's real estate market is increasing in price steadily. There is huge competition for every rental flat on the market inside the ring. This seems like a good opportunity to increase volume to meet demand as would happen in a perfect market. I would imagine the increase in volume (and the revenue that comes with it) would alone be worth building up?