Hi, I think your project is very interesting, I would like to work with you, I have the tools and resources to make the illustration that you need.
I have studied industrial design , so I know very well the crosssections in furniture and architecture.
Surely you already have some technique in mind, my first idea is an image that simulates watercolor, prismacolor , markers or a mixture of them all.
It is important to know what information you have, do you have blueprints for the house, pictures, or a text description ?
I really would love to do this illustration, and I'm the right person, I welcome your comments and the opportunity to work with you. I am at your service to answer any questions.
Regards