What if the property doesn't let the house be renovated?

Specific solutions and drawings refer to the following:

Generally, the decoration of the property is not strict, and the owner directly tells the property that he decorated it himself. To put it bluntly, "his house is decorated even if it is tiled and painted." General property can be said that;

If the property is really not allowed, you need drawings, that is, "water circuit" drawings; The most direct thing is to ask the plumber to draw a picture. Draw the house according to the outline of the house, and then draw the lines of water pipes and wires.

If hydropower workers really can't draw, you can ask relatives and friends if there are any people who do interior design or tooling design. They can draw a CAD software diagram, so let them draw one for you.

Provide some trend charts with stubs as attributes to facilitate later maintenance and repair; More property personnel can talk about the basics.