A creek of sorts would be pretty fun too, I'd try to see if I can harvest it to generate power. and that's where the whole bureaucracy crap comes in, I'd want an area where I can do stuff like this without someone telling me not to. Of course I would need to account for fish etc. Normally you'd have a small dam with a bypass a bit below the reservoir.
Am I the only one that would want a 10 sqft max house but an awesome yard?
10 is kinda small, but I could probably live in 100 if I had to. I'd want other buildings though, like maybe a 2000sqft garage/warehouse/shop type building. My ideal dream house is not so much the house itself but the location and the freedom offered by said location. If I won the lotto, I'd try to see what it takes to buy a whole lake and like 1km of land all around it. I imagine if you flash enough money in front of the provincial government they'll give you the land. Essentially just declare it as a small city or something. Keep it as mostly trees, but clear out a small section for living. Maybe clear out other sections for rental cottages, family, etc.