You can draft professional plans for your new home in various ways. Your architect may offer a drafting service or you can use a specialist drafter.
In some cases, people use overseas companies to do this job. After all, plans harness technology such as CAD design that can be created remotely; you can communicate with your drafter online or over the phone.
While it may initially seem cheaper to outsource the job to a different country, this has other costs that could negatively affect your project.