Most lots are too small for a hot tub, let alone a pool.
Tampa 3.0?
Supposedly they go up to 1/3 acre, which I guess might be doable? But it's really a closely related issue.
As far as Tempa 3.0 goes, I think this has a better chance of working out. There's a lot of money behind this and the ultimate goal is profit. That goes a long way towards success IMO.