You're moving the goal posts here. Did you buy the land for the purpose of building property? Bad. Did you convert arable land into housing? Bad. Was it a rocky bad piece of land that you invested in to build something more out of it? Good. Housing policy isn't binary but in most cases the current personal private multiownership model doesn't help anyone. My perspective is no one should be allowed to own more than one house, and if so anything beyond the first house should be heavily taxed.