Toilets, Sinks, Showers, Tubs and Disposals - Where to put the pipes?

We are not sure the best place to put our inbound copper pipes for the bathtub we are installing. The tub drain is on the outside wall and we cannot move it. Is it ok to put the water pipes to the tub and shower fixtures on the opposite wall or side wall from the drain ? If they have to be on the outside wall what is the best way to insulate them to prevent freezing? Thank you for your help.

Bring them up into the floor, and fur out the wall. Where were they before?

The pipes were located on the outside wall. We have been told and are afraid that if we place them there they will freeze easily. So we thought that we might move them to the end of the tub that is opposite the drain. Then we didn't know if there was any plumbing code against this. We don't expect anyone to reply on local plumbing codes because they are different in each state, but if we put them where they won't freeze as easy and where the pressure will be better because they are closer to the water source, will we be ok (on the opposite wall from the drain). We are a little afraid that when we ever sell our house that an inspector will red flag the bathroom. Thank you for your response.

What is below the bathroom?: a finished ceiling?, open basement ceiling, or crawl space?

Were you planning to tear into the existing floor for any reason or not? Or would you mind if you had to, at least under the tub?

Do you know if the floor joists go in the same direction as the length of the tub, or perpendicular?

You know for a fact that such things as the drain and vent and supply line piping was in the outside wall? If so, have you gone into that wall at all to see how they did it? Is the house located where there can be hard sustained freezing temperatures? How old is the house? What are all the pipes made out of?

It be NICE to have the pipes on an inside accessible wall if you can get them there reasonably.

Thank you for your help. Below the bathroom is the basement where we have torn out a lot of the old walls and will be tearing out the rest. The floor joists run parallel to the tub. The previous pipes were against the outside wall and were galvanized - the drain was in the same place and was old cast iron. We have torn out both - the drain has been replaced with pvc and the new pipes will be copper. The house was built in 1917 and we live in the upper Midwest with some very cold winters. We would like to avoid putting more holes in the bathroom floor if possible. We will be tiling over the existing floor.

You can put the pipes wherever you want them. In fact, I just saw an installation where the valve handle was in the middle of the wall that ran alongside the tub - kind of cool.... If you decide to put the pipes in the outside wall, wrap them in foam pipe insulation - and insulate the wall cavity as well between the pipes and the outside wall.

Another option to ease your concern would be to put the tub in the other direction (left hand vs right hand).... running your pvc drain to the new location would be relatively simple as your joists run the proper direction - and you have access to the underside of the tub floor.