This is an economical impossibility. Land becoming more valuable is unavoidable, because of the weather, of the people that surround you, the availability of jobs. Rent is high in SF because people are moving to SF and finding high paying jobs. Its not an unrelated effect.
So if there is land more valuable than others, and you taxed away all the value of the land (lets supposed that rent is taxed at 200%, hence all rents drop to 0), you are now going to see something new: people buying land. Now instead of renting, the only operation left is buy and sell. Provided it is cheap at first, because investors would all dump their properties, it will be impossible to get later on. Its an extreme case of rent-control.
Investments, including land, are owned on the backs of consumption foregone in the past.
All investments are not owned on the back of consumption foregone in the past.
Unless you believe that someone with 100 million dollars is "foregoing consumption" when they invest (particularly in real estate).
One is consumption; the other is investing.
There is a case to say that big money that buys land does something to make it more valuable, and hence there was care and investment. But most of the time, land is something bought long ago, that has benefit basically forever.
Land also has the chicken-egg problem capital doesn't have. The first one that built a house didn't consume his capital, the first one that got the property rights didn't consume capital whatsoever.
I am closer to your position than to the other commenter in this thread, just wanted to distinguish that land can capital do have some differences worth thinking about.
My apologies on the prior post; I meant to imply that buying unimproved land in the "right" place is a great long-term investment.
Real estate shouldn't be an investment, it shouldn't raise in value, and it shouldn't be possible for a huge chunk of the population to fund the financial sector through mortgage interest. It's a tax on everyone designed to funnel wealth upwards towards a sector of capital owners that get paid for doing very little.
Regulations and taxes should be arranged such that it is very expensive to own real property that isn't for your own personal or business use. If you want to act as a gatekeeper for real estate, at least a large chunk of the profit should go to the state for the benefit of the public. If it's expensive and not beneficial to own things so others have to pay you to use them, the market will shrink dramatically and more people will actually be able to own homes.