Since unreclaimed "land" if it can be owned, can not generate any rents, it won't be taxed at all. But if all the additional value of making it usable were taxed away with a full LVT, it creates very little incentive to reclaim it and make it usable.
I think the best thing to do would be to exempt reclaimed land from land value tax for a period of time. Just like we grant monopolies for patents for a fixed value of time to incentivize sharing of the secrets.
If you got 50 years on reclaimed land without tax, it would heavily incentivize its creation.
> Cities can also lose land. Sometimes this is due to natural causes like erosion, sea level rise,
When there's a full LVT, the transactional sale price for land is very close to $0, because your land rents are taxed away. That leaves only the buildings as something that's lost to the natural disaster, so in many ways this might be far better for property owners.
It would also alleviate many of the challenges with relocation when necessary, from flooding, etc. Since the land is no longer the valuable part of the relationship estate, only the building must be moved/replaced.