The purpose of many architectural visualization projects is to either display an idea or concept or help sell a project. When we have a project like a Penthouse, we usually have to create the most realistic and high-quality images possible. A potential client won’t accept anything other than the best with a design that generally represents a luxury space.
If you want to look at how Blender can also help us in such types of projects, I found another great project from the guys of 77 Render Studio. They shared a Penthouse project developed with Blender.
You can check more details about the project in this BlenderArtists thread or by visiting their portfolio.
A couple of months ago, I published a project profile with another of their projects, and you can check more about their workflow and project development.