San Francisco - Input on Renovation Costs

[J Scott]

Trying to get a VERY BALLPARK idea of what I would expect a per-square-foot gut interior renovation to cost an investor in San Francisco.

By ballpark, I mean I'd be happy with a $50/sf range ($125-175/sf, for example) or even just a high-end number (up to $200/sf, for example).

By gut renovation, I mean gutting down to the studs and replacing all electrical, plumbing, HVAC, sheetrock and then all mid-level cosmetic finishes (oak hardwood, standard granite, basic fixtures, etc).

Ignore exterior costs since I know those are a lot more variable.

I realize that there are still a million variables, but I'm just trying to determine if a conservative number is $100/sf, $150/sf, $200/sf, $250K, etc...

Thanks!