Re real estate: indeed an LVT would go a long way to ameliorate the unsustainable situation regarding housing across Europe. It's a simple and efficient solution, and can be applied at the country level.
But I would argue that the situation in housing is actually a consequence, and not a separate phenomenon, of the broader issue of inequality-driven asset price inflation.
Fuly agree, LVT seems to be a good incentive. As well as de-regulating, easing or digitilazing all the bureaucratic processus related to building so that the time between wanting to build and actually built nears 0. Also introduce anti-democratic laws that push the will of the group over the individual house owners who are motivated to block new contructions to see their number go up.
But I would argue that the situation in housing is actually a consequence, and not a separate phenomenon, of the broader issue of inequality-driven asset price inflation.