So, I cant be of that much help here, but roughly speaking a whole house remodel is going to run about $200 a sq foot with mostly mid end finishes.
1) Entire house rewiring
- Depends a bit what you mean; a panel upgrade might be achievable for something on the order of $1,000. But again, depends. If you have more than one panel and intend to combine, thats one thing. If its just upping the amps coming into an existing panel, thats another.
- Entire re-wiring of the house can be very expensive but if its done when walls are exposed its much less $$$.
- Do you really need to do this, or are you assuming this is necessary?
2) 11 Windows, Front door replacement with frame and a new roof.
- Roof depends heavily on materials, if you dont want the highest end stuff you can replace existing roof for about $2,000 - $3,000.
- Windows again depend heavily on model and insulation level, but higher end Pella's are gonna run several hundred per. Depends on size as well, but as a very rough guide, $500 per window is a rough rough guess.
3) HVAC installation (No exist duct works)
- Dont have any advice here, but neighboors did this for about $20K - depends also if we are atlking about ripping up existing radiators etc
4) 1 Bathroom renovation
- Impossible to say without knowing size and what you mean by renovation. There's a huge difference between replacing a vanity with something from home depot vs doing custom work. At a minimum, assuming we are talking about a pretty good down to the studs and back up, i'd venture $5,000 to start.
5) Tear down walls in the living room and kitchen for open concept and put up new dry walls all around.
- This is probably not as simple as you'd like, a 1916 home is going to have load bearing attributes in various spots. To get around it you will need steel frames and proper engineering. Really impossible to tell without getting someone in there to give you a sense of the complexity involved.... there's also a big big difference between doing a 'cut out' and actually removing a wall. You can (usually) do a cut out (to give an open feel) for a small fraction of the cost of actually ripping out the wall and having to deal with structural support changes. One is a handyman special with a little drywall work, the other is serious construction...
Sorry this isnt too helpful, but if we are talking full gut remodel, assume $200 a sq ft and youv'e got a ballpark idea.