Answer : It's not that it's hard, but it does require a lot of time and effort because you're responsible for all aspects of the interior. From the client throughout every stage of construction to materials, furniture, fixtures. You make your first design choices, then work with other people to implement your vision over many weeks or months. I should also mention that the plan needs to be executed properly for code compliance, ADA requirements . It can be grueling at times trying to balance conflicting objectives and personality types around the table under tight deadlines. But there's nothing quite like working on a project from start to finish and seeing how everything came together as planned at completion - oftentimes with minor surprises along the way!