Development of the project house

There's a built-up house. The house is 200 sq m. There is an architectural plan, but it needs to be improved:
1) a plan of the 1st floor in the part of the hallway, toilet, bathroom
2) 2nd floor plan is required
3) after approval of the house plan by the architectural bureau, a design project of the house is needed
4) electrical and plumbing plan (location on the plan)
Possible cooperation in the future