Consulting the renovation of old houses in Suzhou Park. The bathroom is very small, 3 square meters. How much does it cost to knock out the bathtub and directly lay the floor tiles?

It's hard to say. If you just knock off the bathtub, you'll have to lay bricks under the original bathtub.

Shovel the wall is cheap, but pay attention to your wall:

Is there pulverization phenomenon in grass-roots cement? In that case, all shovels are a little high.

If you don't shovel in this situation, be careful of the wall cracking (unstable base) in the later period.

As for the rearrangement of water and electricity, it depends on how you arrange it on the spot.

So to be clear, it is best to have a construction drawing.