There is not much land to use, and what is there has been used well. The parking situation prevents you from owning a nice car as it stands, though there should be the option of fencing the block off. But then, you have a facade to show off. The dwelling itself is a great shell and that is pretty much all it is. It is liveable right now, but there are little quirks you would want to attend to: reconfigure the kitchen to install a proper exhaust fan, and maybe close off the bedroom windows facing the living area, not the ones facing the world. The protective shade sliders on the panorama windows might require a service to the sliding mechanism.

Tough one here. Orientation is great, and the heating sits in the slab, electric, but still better than splits. The biggest challenge is insulation: you do not have much space to work with, the concrete walls are a feature and hiding them behind panels defeats their point, and removing the outside facade cladding requires a bit of effort.