Hold or do something?

[Tomoko Hale]

We purchased 40 acres lot that is very closed to a lake in Idaho.  We wanted to build a cabin for us but learned there is nothing and off grid so it has been sitting there for last three years and paying the property tax. We've been hearing eventually that area will be developed but don't know when. The place has been appreciated 70 K last three years. If you were us, what would you do? Build camp grounds or something, or just let it sit for the appreciation?  Any advise please.